Air Integrated Dive Computer User Manual
™
™
Air Integrated Dive Computer
Software v1.18
Ultr as onic software v1.11
And
T1, U-2 and L1 Transmitters
Liquivision Products, Inc -1- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Software v3.06
April 22, 2014
™
Air Integrated Dive Computer User Manual
™
CONTENTS
IMPORTANT NOTICES ............................................................................................................................... 8
Definitions ..................................................................................................................................................... 9
User Agreement and Warranty ....................................................................................................................... 9
User Manual .................................................................................................................................................. 9
Liquivision Limitation of Liability ............................................................................................................... 10
Trademark Notice ........................................................................................................................................ 10
Patent Notice ............................................................................................................................................... 10
CE ............................................................................................................................................................... 10
LYNX Hardware Features ........................................................................................................................... 11
T1 Tank Transmitter Hardware Features ...................................................................................................... 11
U-2 Tank Transmitter Hardware Features .................................................................................................... 12
L1 Loca tion Tr an smitter Hardware Features ................................................................................................ 12
LYNX-AI Software Features ....................................................................................................................... 12
GETTING STARTED – BEFORE DIVING YOUR LYNX ..................................................................... 14
Register Your Unit /Activate Your Dive Software (Free) .............................................................................. 14
Unlo ck Th e Lo ca to r Fe atur e of Th e LY N X (OPT IONAL, Free, BET A Sof tware) ........................................ 14
Setup Time/Date & Battery Type ................................................................................................................. 15
Read The Manual ........................................................................................................................................ 15
Familiarize Yourself With Tap-Navigation .................................................................................................. 15
GETTING STARTED – FEATURES OF YOUR LYNX UNIT .............................................................. 16
GETTING STARTED – FEATURES OF YOUR T1 TRANSMITTER
GETTING STARTED – FEATURES OF YOUR U-2/L1 TRANSMITTER
GETTING STARTED – HOW TO TURN ON/TAP YOUR LYNX
General Tapping/Menu Guideli nes: .............................................................................................................. 19
GETTING STARTED – SETTING UP A TRANSMITTER PRE-DIVE ................................................ 24
Transmitter Identification/Labels ................................................................................................................. 24
T1/U-2 Tank Transmitter Installation ........................................................................................................... 25
T1/U-2 Tank and L1 Location Transmitter Orientation ................................................................................ 26
Strong signal/ weak signal zones of the Transmitters themselves ............................................................... 26
The biggest shadow the T1 or U-2 Tank Transmitter faces: YOU! ........................................................... 27
Turning The T1/U-2 Transmitters On/Off .................................................................................................... 28
Turning The L1 Transmitters On/Off ........................................................................................................... 28
Checking Your Tra nsmitter Pre-Dive ........................................................................................................... 29
GETTING STARTED – SETTING UP LYNX PRE-DIVE ...................................................................... 30
LYNX Surface Display ................................................................................................................................ 30
LYNX Scroll Bar ......................................................................................................................................... 30
First, Check Your Battery! ........................................................................................................................... 30
Optimizing Ba tt e r y Lif e ............................................................................................................................... 31
SURFACE MENUS ...................................................................................................................................... 32
Main Menu .................................................................................................................................................. 32
1. S hut Of f .............................................................................................................................................. 33
2. Enter PIN ............................................................................................................................................ 33
3. LOCK / UNLOCK .............................................................................................................................. 34
4. Dive Planning ...................................................................................................................................... 34
4.1 Mode ( Rec/Tec/Gaug e) ...................................................................................................................... 35
Rec Mode ....................................................................................................................................................... 35
Tec Mode
Gauge Mode
4.2. Dive Setup (only in Tec Mode) ......................................................................................................... 38
4.2.1. Conservatism ................................................................................................................................. 38
.................................................. 17
.......................................... 18
....................................................... 19
....................................................................................................................................................... 37
.................................................................................................................................................. 38
Liquivision Products, Inc -2- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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4.2. 2. P O 2 di v e ........................................................................................................................................ 38
4.2. 3. P O 2 deco ....................................................................................................................................... 39
4.2.4. Last deco stop ................................................................................................................................ 39
4.3. Gases (only in Rec & Tec Modes) ..................................................................................................... 39
4.4. Compute NDL (only in Rec & Tec modes) ....................................................................................... 40
4.5. Runtime (only in Tec mode) ............................................................................................................. 40
4.6. Ala rms .............................................................................................................................................. 42
4.6.1. Alarms On/Off ............................................................................................................................... 42
4.6.2. Depth ............................................................................................................................................. 42
4.6.3. Time .............................................................................................................................................. 42
4.6.4. Ascent Rate .................................................................................................................................... 42
4.6.5. Descent Rate .................................................................................................................................. 43
4.7. Your S aturation (only in Rec & Tec modes) ...................................................................................... 43
4.8. Simulate Dive ................................................................................................................................... 44
5. Pre-Di ve Check (only if you are using one or more t ransmitte rs) .......................................................... 44
6. Air Integration ..................................................................................................................................... 45
6.1. Mode ................................................................................................................................................ 45
6.2. Units ................................................................................................................................................. 47
6.3. Transmitter ....................................................................................................................................... 47
6.3.1. Set All Units (only with software v1.11 or below) ........................................................................... 47
6.3.2. A0000 You Off ............................................................................................................................... 47
6.3.2.1 . Type ............................................................................................................................................ 47
6.3.2.2 . S erial # ....................................................................................................................................... 48
6.3.2.3. Name .......................................................................................................................................... 48
6.3.2.4. Max ............................................................................................................................................ 48
6.3.2.5 . Mid ............................................................................................................................................. 48
6.3.2.6. Low ............................................................................................................................................. 48
6.3.2.7 . Reserve ....................................................................................................................................... 48
6.3.2.8. Battery ........................................................................................................................................ 49
6.3.2.9 . C o py To ...................................................................................................................................... 50
6.4. Advanced ......................................................................................................................................... 50
7. Compass .............................................................................................................................................. 50
7.2. Calibrate ........................................................................................................................................... 50
7.1. Chec k ............................................................................................................................................... 50
8. Dive Log ............................................................................................................................................. 50
8.1. L og S ummary ................................................................................................................................... 51
8.2 Log Detail ......................................................................................................................................... 51
8.3. Depth Graph ..................................................................................................................................... 52
8.4. Temperature Graph ........................................................................................................................... 52
9. Displ ay Settings ................................................................................................................................... 52
9.1. Brightness ......................................................................................................................................... 52
9.2. Auto D im ......................................................................................................................................... 52
9.3. Refresh ............................................................................................................................................. 53
9.4. L ayout (only affects Gauge mode) .................................................................................................... 53
9.5. Vel oc i ty ............................................................................................................................................ 54
9.6. Stopwatch DF (only in Gauge Mode ) ................................................................................................ 54
9.7 Dark Mode (only in Gauge Mode) ..................................................................................................... 54
9.8. Show Hours ...................................................................................................................................... 55
9.9. Show TTS ........................................................................................................................................ 55
9.10. Show MAX .................................................................................................................................... 56
9.11. Simulate Dive ................................................................................................................................. 56
10. Pref er en c es ........................................................................................................................................ 56
Liquivision Products, Inc -3- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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10.1. Units ............................................................................................................................................... 56
10.2. Log Period ...................................................................................................................................... 56
10.3. Tap Sensitivity ................................................................................................................................ 57
10.4. Tap Count ....................................................................................................................................... 57
10.5. Minimum Dive ............................................................................................................................... 57
10.6. Minimum Surface Interval .............................................................................................................. 57
10.7. Status .............................................................................................................................................. 58
10.8 Battery Type .................................................................................................................................... 58
10.9 Bat tery M eter ................................................................................................................................... 58
10.10 Battery Test ................................................................................................................................... 59
10.11 Temperature ................................................................................................................................... 59
11. Salinity .............................................................................................................................................. 59
12. Tim e/ D at e .......................................................................................................................................... 60
12. 1 12h /24h ........................................................................................................................................... 60
12.2 Time ................................................................................................................................................ 60
12.3 Date ................................................................................................................................................. 60
12.4 Year ................................................................................................................................................. 60
12.5 Cal ib rate Time ................................................................................................................................. 60
13. Connect to PC .................................................................................................................................... 61
14. Locator PIN ....................................................................................................................................... 61
UNDERWATER MENUS ........................................................................................................................... 63
Main Und erwat er Menu
1. S witch Gas (only in Te c Mode) ........................................................................................................... 63
2. LOST GAS (only in Tec Mode) ........................................................................................................... 64
3. Silence Alarms .................................................................................................................................... 64
4. AI Mode .............................................................................................................................................. 65
5. Locate ................................................................................................................................................. 66
6. Compass .............................................................................................................................................. 67
7. St opwatch (only in Gauge Mode) ......................................................................................................... 68
8. Reset AVG (only in Gauge Mode) ....................................................................................................... 68
9. Dark Mode On/Off (only i n Gauge Mode & only if Dark Mode is activated in the Surface Menu s) ...... 69
10. Displ ay .............................................................................................................................................. 69
10.1. Brightness ....................................................................................................................................... 69
10.2. Auto Dim (only i f A uto Dim Mode is activated in the Surface Menus) ............................................ 69
10.3 La yout (only aff ects Gauge Mode ) ................................................................................................... 69
11. Advanced .......................................................................................................................................... 70
12. St op S imulation ................................................................................................................................. 70
DIVING WITH YOUR LYNX IN REC MODE ........................................................................................ 71
Overview ..................................................................................................................................................... 71
Set ting Up a Dive In Rec Mode ................................................................................................................... 73
Set tings That Will Af f ect Your Dive ............................................................................................................ 74
Conserva tism Sett ings ............................................................................................................................. 74
Safe ty Stop .............................................................................................................................................. 74
Oxygen Loading (for enriched air /nitrox dives) ........................................................................................ 74
Entering the water ........................................................................................................................................ 74
Turning Your LYNX On ......................................................................................................................... 74
Beginning Your Dive .............................................................................................................................. 75
Dive Display ................................................................................................................................................ 75
Dive Time ............................................................................................................................................... 75
Depth ...................................................................................................................................................... 75
Air Integration ......................................................................................................................................... 76
Air Time ................................................................................................................................................. 76
................................................................................................................................ 63
Liquivision Products, Inc -4- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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TTS (Total Time to Surface) and Max Depth Display .............................................................................. 78
Decompre ssion Infor ma tion Zone ............................................................................................................ 79
Graphi cal Decompression S top Information ............................................................................................. 79
Graphical Ascent/Descent Indicators & Alarms ....................................................................................... 80
CNS Loading .......................................................................................................................................... 80
N2 Loading ............................................................................................................................................. 80
Gas .......................................................................................................................................................... 81
Gas/PO2/CNS ......................................................................................................................................... 81
Temperature ............................................................................................................................................ 82
Batte r y Ind icator – LYNX ....................................................................................................................... 82
Batte r y Ind icators – Transmitter(s) .......................................................................................................... 83
“Battery Savings” mode ............................................................................................................................... 83
Exiting t he water .......................................................................................................................................... 83
Last dive information ................................................................................................................................... 84
Alt itude Compensati on/S ur face Pressure Adjustments ................................................................................. 84
DIVING WITH YOUR LYNX IN TEC MODE ........................................................................................ 86
Overview ..................................................................................................................................................... 86
Set ting Up a Dive In Tec Mode .................................................................................................................... 87
Set tings That Will Af f ect Your Dive ............................................................................................................ 89
Gas Settings ............................................................................................................................................ 89
Switching Gases ...................................................................................................................................... 90
Switching Gases ALSO Switches The Tank That is Monitored ................................................................ 90
Conserva tism Sett ings ............................................................................................................................. 90
PO2 Sett ings ............................................................................................................................................ 91
Safe ty Stop/Deco Stops ........................................................................................................................... 91
Oxygen Loading ...................................................................................................................................... 91
Entering the water ........................................................................................................................................ 92
Turning Your LYNX On ......................................................................................................................... 92
Beginning Your Dive .............................................................................................................................. 92
Dive Display ................................................................................................................................................ 92
Dive Time ............................................................................................................................................... 92
Depth ...................................................................................................................................................... 92
Air Integration ......................................................................................................................................... 92
TTS (Total Time to Surface) and Max Depth Display .............................................................................. 93
Decompre ssion Infor ma tion Zone ............................................................................................................ 93
Graphi cal Decompression S top Information ............................................................................................. 94
Graphical Ascent/Descent Indicators & Alarms ....................................................................................... 94
CNS Loading .......................................................................................................................................... 95
N2 Loading ............................................................................................................................................. 95
Gas .......................................................................................................................................................... 95
Gas/PO2/CNS ......................................................................................................................................... 95
Temperature ............................................................................................................................................ 96
Batte r y Ind icator – LYNX ....................................................................................................................... 96
Batte r y Ind icators – Transmitter(s) .......................................................................................................... 97
“Battery Savings” mode ............................................................................................................................... 98
Exiting the water .......................................................................................................................................... 98
Last dive information ................................................................................................................................... 98
Alt itude Compensati on/S ur face Pressure Adjustments ................................................................................. 99
DIVING WITH YOUR LYNX IN GAUGE MODE ............................................................................... 100
Entering the water ...................................................................................................................................... 100
Dive Planning ........................................................................................................................................ 100
Turning Your LYNX On ....................................................................................................................... 101
Liquivision Products, Inc -5- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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Beginning Your Dive ............................................................................................................................ 101
Diving ....................................................................................................................................................... 101
Dive Display ......................................................................................................................................... 101
Dive Time ............................................................................................................................................. 102
Depth .................................................................................................................................................... 102
Air Integration ....................................................................................................................................... 102
Stopwatch ............................................................................................................................................. 103
Maximum Depth ................................................................................................................................... 103
Average Depth ...................................................................................................................................... 103
Time of day ........................................................................................................................................... 104
Temperature .......................................................................................................................................... 104
Batte r y Ind icator – LYNX ..................................................................................................................... 104
Battery Indicators – Transmitter(s) ........................................................................................................ 105
“Batt ery Savings” Mode ............................................................................................................................ 105
Exiting the water ........................................................................................................................................ 106
Last dive information ................................................................................................................................. 106
Alt itude Compensati on/S ur face Pressure Adjustments ............................................................................... 107
DIVING WITH YOUR LYNX – AIR INTEGRATION FUNCTIONS ................................................. 108
Overvi ew of the LYNX-AI Ultrasonic Fea tures and Tec hnology ................................................................ 108
Set ting Up an Air Integrated Dive .............................................................................................................. 109
Positioning Your LYNX To Get The Best Possibl e Transmitter Signal ....................................................... 111
Hand & Wrist Position .......................................................................................................................... 112
Other Computer Position ....................................................................................................................... 112
Dry Suit Cuff ......................................................................................................................................... 112
Lynx Str ap ............................................................................................................................................ 112
Summary Of Factors That Affect LYNX-AI Range
.................................................................................... 113
ORIENTATION: Ultrasonic signals travel farthest with a direct line-of-sight ...................................... 113
DIVING WITH YOUR LYNX – LOCATOR FUNCTIONS
Important Notic e ........................................................................................................................................ 114
Befor e You can Use the Loca tor Feature .................................................................................................... 114
Using The Locator Fe ature ......................................................................................................................... 114
For The Locator To Work , T he L Y NX Must Be Kept Horizont al ........................................................... 115
What Y our S ee On Your Locator S creen ............................................................................................... 115
Waiting for/Obtaining your Fi rst Data Packet ........................................................................................ 115
How To Navigate When You Get Y our F irst Packet .............................................................................. 116
More Deta ils About What You S ee On Your Screen .............................................................................. 117
How To Navigate When You Get Y our S ubsequent Packets .................................................................. 117
Packet Aging ......................................................................................................................................... 118
Troubleshooting The Locator Feature ........................................................................................................ 119
Pract ic e Ma kes Perf ect .......................................................................................................................... 119
Using The D istance Est imate To Get Best S ignal Recepti on .................................................................. 120
Don’t Remain Still… Movi ng Will Improve Your Signal Reception ...................................................... 121
Locator Operation At Different Distances .............................................................................................. 121
Locator Operation In Face Of Obstructions ............................................................................................ 121
Typical Path To Reach Your Target ........................................................................................................... 121
CARING FOR YOUR LYNX and TRANSMITTERS ............................................................................ 122
Sensitive Areas of Your Lynx .................................................................................................................... 122
Sensitive Areas of Your T1 Transmitter ..................................................................................................... 122
Sensit ive Areas of Your U-2/L1 Tr an smitters ............................................................................................. 123
Post-Dive Care and Storage of your LYNX and Transmitter(s) .................................................................. 123
Long-Term LYNX and Transmi tt er Storage ............................................................................................... 124
Replac ement Battery S to rag e ..................................................................................................................... 124
................................................................. 114
Liquivision Products, Inc -6- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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LYNX and Transmitter Accuracy Testing .................................................................................................. 124
OVERVIEW OF LYNX, T1, U-2 and L1 BATTERY TYPES ............................................................... 125
BATTERY TYPES BY PRODUCT
LYNX and T1 Battery Type s ..................................................................................................................... 126
U-2 Battery Types ..................................................................................................................................... 127
U-2E – The U-2 Extension Ki t ................................................................................................................... 128
L1 Battery Type ......................................................................................................................................... 129
SPARE BATTERIES YOU CA N BUY FROM LIQUIVISION ............................................................ 131
BATTERY COMPARTMENT O-RING INFORMATION
DETERMINING & OPTIMIZING BATTERY LIFE
How To Determine LYNX or Transmitter Battery Life Remaining ............................................................ 134
Basic Rules For Optimizing Battery Life in your LY NX ............................................................................ 135
Basic Rules For Optimizing Battery Life in your Tank or Location Transmitter ......................................... 136
Detailed Rules For Optimizing Battery Life in your LYNX ........................................................................ 136
LYNX Battery Savings Mode: When Your Bat tery Voltage Dr ops B elow A Critical Le vel ........................ 136
Estimated LYNX Battery Life Depending On User Settings ....................................................................... 137
T1 Tran smitter Ba t t er y L if e ....................................................................................................................... 138
U-2 Transmitter Batte ry Life ...................................................................................................................... 138
L1 Tran smitter Ba t t er y L if e ....................................................................................................................... 138
CHANGING THE LYNX’s or T1’s BATTERY ...................................................................................... 139
OPTION– CHANGE O-RING ................................................................................................................... 142
CHANGING THE U-2 or L1 BATTERY ................................................................................................. 144
LYNX PC INTERFACE
PC Drivers: Inter net Explorer
PC Drivers: Firefox
PC Drivers: Google Chrome ...................................................................................................................... 146
Adva nced Us er s
PC Dive Logger: Internet Explorer
PC Dive Logger: Firefox
PC Dive Logger: Googl e C hrome
Mac-OSX Dive Logge r (all brows ers)
How To Connec t the LYNX PC Interface To Your Computer .................................................................... 148
How To Launch A Dive Log Download ..................................................................................................... 148
How To Insta ll The Liquivision Firmware Updater Onto Your PC ............................................................. 149
PC Firmware Updater: Internet Explorer .................................................................................................. 149
PC Firmware Updater: Firefox
PC Firmware Updater: Google Chr o m e
Mac-OSX Firmware Updater ( a ll Browsers)
How To Insta ll the Newest Firmware On Your LYNX ............................................................................... 150
PC: I nternet Ex plor er Firmware Install ..................................................................................................... 151
PC: Firefox Firmware Install
PC: Google Chrom e Firmware Install
Mac-OSX Firmware Install (all Browsers)
All Users
SUPPORT CONTACTS
BIBLIOGRAPHY
APPENDIX A – PHOTOS GOOD/BAD T1/U-2 POSITIONS
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Liquivision Products, Inc -7- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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IMPORTANT NOTICES
WARNING – DA NGERS OF DIVING
Sc uba diving is a dangerous sport , and can lead to inj ury, disa b i lity or dea th. Al wa y s di ve with in t he
limits of your training, skills and experience. Technical diving activities, including decompression
diving, mi xe d gas diving, r e breath er di ving, wr e ck and cave diving, all substantially increase the risks
of scuba di ving.
The LYNX dive computer is capable of calculating decompression requirements based on the
Bühlmann Z H-L16C algorithm first publ ishe d in 19901. Decompr es sion is an inexact sci ence. It is
possible to fo llow a decompr ession plan exactly and still suffer decompression si ckness. Following a
decompre ss i o n plan does not, in an y way, gua r a ntee th e avoida n c e o f de c o m pression sickness . The
same profile that gets you out of the water sa f el y on e day may cause decompress ion sic kness another
day, and lead to temporary or permanent injury or death.
You ca n die whil e diving.
WARNING – ELECTRONICS CAN FAIL – ALWAYS CARRY BA CKUP
The LY NX dive co m pu ter hardware and T1, U-2 and L1 Transmitter hardwa re will eventually fai l, like
any el e ctroni c e qu i p m e nt w h o se components mature and age. If they fail dur i n g you r dive, they can
sto p providi ng you wit h cr itical information.
You mu s t ha v e a plan to han dle the failure of the LYNX dive comput er or the T1, U-2 or L1
Transmitters during your dive. You should c a r ry backup instruments, including a depth gauge,
subm ersibl e pressu r e gauge, digital botto m timer or di ve wa tch, a com pass, and have access to
decompression tabl es. Do not risk your life on only one source of information.
WARNING – CONDUCT PRE-DIVE CHECKS
It is your responsibility to perform all pre-dive c h ecks recommended in this manual, including checking
for software updates, running the Pre-Dive Check funct ion to make sure your LYNX is receiving T1,
U-2 or L1 Tr ansm itt er signals, checking bat tery vo lt a g e t o en su re th e LY NX di v e compu ter and the T1,
U-2 or L1 Transmitters have enough battery life to comple te your planned dive and che cking that e ac h
diver is wearing the T1 or U-2 Transmitter associated with his or her name.
WARNING – ALWAYS CHECK FOR SOFTWARE UPDATES
The LY NX dive co m pu ter software lik ely sti ll has bugs. We have looked for them and tried to
elimin ate them, but they c an s till ap pear during use. B ugs can c aus e the units to provide inaccurate or
incompl ete informat ion, or cause the unit to reset or turn off and stop providing any information at all.
You should always check for software updates
(http://liquivision.com/downloads/LYNXSoftwareHistory.php) and install all appl icable updates, every
time you prepare to use the LYNX dive co m pu ter.
Liquivision Products, Inc -8- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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Definitions
“Liquivision LYNX” or “LYNX” refers to the LYN X dive computer only.
“Liquivision T1 Transmi tter” or “ T1 Transmitter” refers to the T1 ultrasonic tank transmitter only.
“Liquivision U-2 Transmitter” or “U-2 Transmitte r ” refers to the U-2 ultrason ic tank tra n smi tt er only .
“Liquivision L1 Transmitter” or “L1 Transmitter” ref ers to the L1 ultrasonic location transm itter on ly.
“Tank Transmitters” refers to both or either one of the T1 and U-2 Tank Transmitters.
“Location Transmitter” refers to the L1 Location Transmitter.
“Transm itters” refers to any or either of the T1, U-2 and L1 Tra ns mitters.
“Liqu ivisi on LYN X-AI” or “LYNX-AI” stands for “LYNX Air Integrated” and refers to the LYNX
dive co m pu t e r u sed t ogether with the T1, U-2 or L1 Transmitters.
The LYNX can be used in a number of different configurations:
“LYNX Stand Alone” or “LYNX SA” refers to the LYNX used a s a dive computer only, without a
Tank Transmitter.
“LYNX Solo Mode” refers to the LYNX used by an individual diver, in conjunction with a Tank
Tra ns mitter, t o m o ni t or his or her o w n air. (NTD: can it be used with L1 only?)
“LYNX Buddy Mode” refers to the LYNX used by an individual dive r to m onitor t wo transmitters,
either his or her own Tank Transmitter and a Buddy’s Tank Transmitter OR his or her own Tank
Transmitter and an L1
“LYNX Group-4 Mod e” r e f ers to th e LY NX use d by a div e master t o m onitor u p t o five Transmitters –
one on hi s or her own tank and up to four other Tank or Location Transmitters.
“LYNX Group-9 Mod e” r e f ers to th e LY NX u sed by a di v e master to monitor u p t o t e n Transmitters –
one on his or her own tank and up to nine other Tank or Location Transmitters.
User Agreement and Warranty
Use of the Liquivision LYNX and the T1, U-2 a n d L 1 Transmitter(s) are subject to the User Agreement
and Warr ant y ( “A greement ”) available at the Liquivision we bsite:
http://liquivision.com/LYNX_manuals.php
.
You must read the entir e Agre ement befor e usi ng the LYNX and any of the Transmitter(s). If you do
not agree with a n y term o f the A gree me n t, you must not us e the LYNX and the Transmitter(s), a n d y ou
may return the LYNX and the Transmitter(s) to Li quivi sio n or the au thori zed Liqui visio n deal er fro m
whi ch you pu rcha sed the LYNX and Transmitter(s) for a full refund within 30 days after your da te of
purchase.
If you use the LYNX and the Transmitter(s), you are deemed to have agreed to t he Us er Agre ement
and Warranty.
User Manual
You must r ead this enti r e Us er Manu al befor e u sing the LYNX and the Transmitter(s). Incorrect use of
the LYNX and the Transmitter(s) or their accessories could invalidate your Warranty and can cause
permanent damage to the LYNX and Transmitter(s) or their accessories.
Liquivision Products, Inc -9- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Air Integrated Dive Computer User Manual
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Liquivision Limitation of Liability
The Agre ement inclu des exclusio ns and limitat ions of Liqui vision’ s liabilit y to you. Thes e exclusions
and limitatio n s include, but are not limit ed to, th e following:
OU AGREE THAT YOU UNDERSTAND AND ACCEPT ALL RISKS ASSOCIATED WITH DIVING, AND THAT
Y
LIQUIVISION IS NOT LIABLE TO YOU OR ANY OTHER PERSON, INCLUDING YOUR HEIRS, EXECUTORS OR
PERSONAL REPRESENTATIVES
CAUSED BY OR RELATING TO YOUR PERSONAL INJURY OR DEATH WHILE DIVING
INJURY OR DEATH IS C AUSED
TRANSMITTER(S) OR YOUR USE OF THE LYNX AND THE TRANSMITTER(S), AND REGARDLESS OF
THE
WHETHER OR NOT THE
ANY WAY
.
LYNX AND THE TRANSMITTER(S) FUNCTIONED PROPERLY OR WERE DE FECT IVE IN
, FOR ANY LOSS, DAMAGE, COST, EXPENSE OR CLAIM ARISING OUT OF,
, EVEN IF YOUR PERSONAL
, IN WHOLE OR IN PART AND DIRECTLY OR INDIRECTLY, BY THE LYNX AND
OU HEREBY IRREVOCABLY WAIVE AND RELEASE LIQUIVISION FROM ANY LIABILITY OR OBLIGATION TO
Y
YOU OR YOUR HEIRS
EXPENSE OR CLAIM ARISING OUT OF, CAUSED BY OR RELATING TO YOUR PERSONAL INJURY OR DEATH
WHILE DIVING
DIRECTLY OR INDIRECTLY
TRANSMITTER(S), AND REGARDLESS OF WHETHER OR NOT THE LYNX AND THE TRANSMITTER(S)
THE
FUNCTIONED PROPERLY OR WERE DEFECT IVE IN ANY WAY
, EVEN IF YOUR PERSONAL INJURY OR DEATH IS CAUSED, IN WHOLE OR IN PART AND
, EXECUTORS OR PERSONAL REPRESENTATIVES FOR ANY LOSS, DAMAGE, COST,
, BY THE LYNX AND THE TRANSMITTER(S) OR YO UR USE OF THE LYNX AND
.
You must read the Agre em ent f or all lim itations and exclus ion s of Li quivision’s liability to you.
Trademark Notice
Liquivisi on, the Li qu ivis io n logo, LYNX, the LYNX logo, T1 Transmitt er , the T1 Tr a n s mitter logo , U-
2 Transmitter, the U-2 Transmitter logo, L1 Transmitter, the L1 Transmitter logo, Find-Connect-
Discover, Dive Enlightened and Be Omniscient are all registered and unregistered trademark s, tra de
names and service marks of Liquivision Products, Inc. All rights are reserved.
Patent Notice
U.S. and international patents have been applied for to protect the Liquivision Tap-Based Navigation
Technology, the Liquivision Ceramic Pressure Sensor Technology as well as the Liquivis ion Ly n x
Tech nolog y. The fo llow ing patents apply to the LYNX and T1 Trans mitters: U.S. Paten t 8359172 and
UK Patent GB2455389, ot her patents are pending . The LYNX and Transmitters use U.S. Patent
RE42218E under license.
CE
The Liquivision LYNX conforms to the requirements of EN 13319 (including EN 61000) but the
outcomes of the tests have not yet been formally accredited by a third party.
The Liquivision T1, U-2 and L1 Transmitters conforms to the requirements of EN 250 but the
outcomes of the tests have not yet been formally accredited by a third party.
Liquivision Products, Inc -10- Ma nua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
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INTRODUCTION – LYNX-AI FEATURES
Welcome, and thank you for choosing the Liquivision LYNX-AI dive computer!
The LYNX-AI brings you Liquivision’s patented, ground-breaking ultrasonic air-integration
techn olog y, alo ng with all the established Liquivision innova tions, i ncluding an ultra-readable OLE D
screen a nd t ap-ba s e d m enu navi ga tion. T he LYN X -AI can be used w i t h Air a nd N itrox mix e s fr om 2 1-
100% O2, a nd offers a one-gas Rec mode, a three-gas T ec mode a s w ell as G a u g e m o d e .
The LYNX allows you to wirelessly monitor your own air supply with digital accuracy and signal
stability. It also allows you to monit or Buddy-Air, or the Group-air of u p to 9 other divers in your
Group, as long as they are all using Liquivision T1 or U-2 transmitters and they are within the
transmitter signal range.
With a free, BETA software upgrade (subject to applicable terms & conditions), th e LYN X-AI a lso
allo ws you t o get di re cti ona l i nfor ma ti on a bout y our B ud dy’ s lo cati o n, or the lo cati o n of u p t o 9 ot h er
divers in your Grou p, as lo n g a s the y ar e all u sin g Liqui vi sio n T 1 or U-2 tra n smitt er s an d are withi n the
transmitter signal range. You can also get a directional indication of the location of your boat, or any
other landmark you ha ve marked with a Liquivi sion L1 Location transmitter. The software for the
dir ecti ona l feat ur e is in B ET A rel ease, whi ch m eans i t i s exper imental and may not function properly
or at all. To activat e the software upg r ade you will have to acknowledge its limitations .
LYNX Hardware Features
• Color OLED (Organic Light Emitting) Display wi th large fonts and angled towards the diver.
• Liquivision’s patented intuitive tap-based user interface
• Liquivi sion’ s pa tente d ceramic pres su r e s e nsor t e chnology
• Three black custom ultrasonic transducers, to receive signal from any of the Liquivision Transmitters
• Tilt-compensated compass
• User-changeable lithium battery, with both disposable and rechargeable options available
• Maximum depth -200m (656 ft)
• Accuracy exceeds t he limits of EN13319:2000. Operational fr om sea level to 8,840m/29,000ft.
• Infrared communication with optional PC int erface.
• The LYNX will functi on when its internal temperat ur e is between 0 to 40°C (32 t o 104°F).
If the LYNX’s inter nal temperature exceeds 40°C/104°F (in direct sunlight, for example) the OLED
disp lay could sh ow s om e visual disturbances. This is not a product failure – the display will return to
norma l when the unit is coole d down.
T1 Tank Transmitter Hardware Features
• Ultrasonic signal transmission with a maximum range of 100m/330ft in clear water with unobstructed
line-of-sight between the LYNX compute r and the T1 transmitte r
• Robust pla s t i c housing, thr eaded aluminum base f or mount i ng in firs t stage high-pressure port
• Turns on when senses tank pr essure for 30 seconds, turns off after 10 minutes of ambient pressure.
• User-changeable lith ium battery, both disposabl e a nd rec hargeable options available
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• Maximum depth -200m (656 ft)
• Maximum tank pressure of 5150 PSI or 350 BAR
U-2 Tank Transmitter Hardwa re Features
• Ultrasonic signal transmission with a maximum range of 100m/330ft in clear water with unobstructed
line-of-si gh t betw ee n t he LYNX computer and the U-2 transmitter
• Black-anodized all-alu minu m h ous ing, threaded base for mounting in first-stage high-pressu re port
• Turns on when senses tank pr essure for 30 seconds, turns off after 10 minutes of ambient pressure
• User-changeable lithium battery, both disposable and rechargeable op ti ons av ailable
• Maximum depth -200m (656 ft)
• Maximum tank pressure of 5150 PSI or 350 BAR
L1 Location Transmitter Hardwa re Features
• Ultrasonic signal transmission with a maximum range of 100m/330ft in clear water with unobstructed
line-of-sight between the LYNX computer and the L1 transmitter
• Black-anodized all-aluminum hous i n g, loop ed ba s e for s lingin g on a carabiner or a di v e l in e
• Turns on/off like a dive light – screw top down to turn on, uns crew top to t urn off
• User-changeable lith ium battery, both disposabl e a nd rec hargeable options available
• Maximum depth -200m (656 ft)
LYNX-AI Sof tware Features
Dive Monitor in g F eatu re s:
• Rec Mode, for single gas diving: all ows any mix from 21-40% O2
• Tec Mode, for m ulti-gas divi ng: allows up to 3 mixes from 21-100%
• G auge Mode, including stopwatch and rese ttable average depth
1
• Bühlmann ZH -L16C
, with optional Gradient Factor s
Gas Mo nitori n g Featu re s in REC Mode include tank pressure in PSI/BAR for:
• Your own tank, and a calculation of your remaining Air Time
• Your Buddy’s tank (if your Buddy has a Tank Transmitter)
• A Group of up t o 4 di ver s (if up to 4 other divers have a T ank Transmitter)
• A Group of up t o 9 di ver s (if up to 9 other divers have a Tank Transmitter)
Gas Monitoring Features in TEC Mode include tank pressure in PSI/BAR for:
• Up to three of your own tanks, but there is no calculation of your rema ining Air Time for e ach
tank due to the complexity of making such an es timate ac curately.\
Ga s M onitoring Features in GAUGE Mode include tank pr essure in PSI/BAR for:
• A Group of up t o 4 di ver s (if up to 4 other divers have a Tank Transmitter)
• A Group of up t o 9 di ver s (if up to 9 other divers have a Tank Transmitter)
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• If you wish to monitor your own air or your Buddy’s air in Gauge mode, you should set these up
as part of the Group-4 or Group-9 modes.
Diver Location Mo nitori n g Featur e s available (with fr ee , optiona l BET A software upgrade) in:
• REC Mode, for your Buddy and up to 9 other divers wearing Tank Transmitters
• TEC Mode, any of the r e m aining 7 trans m itters can be confi gured to appear in the Locate feature
• GAUGE Mode for up to 9 other divers wearing Tank T r ansmitt e r s
Landmark Lo cati o n Mo nitoring Feature s available (with fr ee, opti onal BETA software u pgrad e) i n:
• REC Mode, any one of “Buddy” or “ G r oup-4”or “Group-9” Transm itters can be set up as a Tank
Transmitter to monitor a dive or as a Location Transmitter to monitor a boa t, for ex am ple.
• TEC Mode, any of the r e m aining 7 trans m itters can be confi gured to appear in the Locate feature
• GAUGE Mode, any one of “Group-9”Transmitters can be set up as Tank Transmitter to monitor a
diver or as a Location Transmitter to m onitor a boat.
• Visual alarms
• Built-in dive planner
• Built-in dive simula t or
• Large di ve log memory including dive depth, time, temperature, descent/ascent rates (viewable on
your LY NX) a n d an y gas mon itori ng data f r o m y ou r o wn an d other diver’s t a nk s (on your PC/Mac)
• Imperial/Metri c settings for dive informa tion
• Separate PSI/BAR settings for tank pressure information
• Windows and Mac downloadable (PC interface hardware sold separately)
WARNING
Tank Transmitters Ser ial Numbers 385 and above now trans mit in 2 PSI increments.
If yo ur Lynx is r unning V1. 07 of the Lyn x firmware or an earlier version it will n ot be com pati bl e wit h
Transmitters S/N 385+, a n d will show half of the actual p ressure
.
For your Lynx to be compatible with all Tank Transmitters you need to update to V1.10 or above
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GETTING STARTED – BEFORE DIVING YOUR LYNX
Register You r U nit/Activate Your Dive Sof tware (Free)
Your LYNX co mes pre-loa ded wit h software. Y ou will be a bl e to interac t w i th your unit on th e su rface
and run dive simulations immediately. However, the software will not run u nderwater until you register
your u nit, obta in a free LYNX Unlock PIN code, and enter this code into your LYNX to a ctivate the
dive fu n ctional ity of the software.
To register your unit, you must vis it:
During registration, you will be asked to enter your LYNX serial number, your real name, address,
phone number and a valid email address. You will also be asked to agree and accept the User
Agr eem ent a nd War ra nt y. Li qui vis ion w ill t he n issu e y ou a fr ee LYNX Unlock PI N c ode that you wi ll
be able to enter into your LYNX unit (detailed instructions are available here:
Software Ac tivatio n PIN, Settin g Time/Dat e & Battery Type). At this time, your LYNX will u nl o ck it s
diving featu res.
Liquivision requires you to register for two reasons:
a) To Mark the Start of Your Warranty Period:
consi dered the start of your limited warranty period
b)
To Collect Contact Information For Critical Customer Communications:
information you provide will be used to contact customers in the event of a critical software
upgrade, ha r d wa re upgrade, or r e ca ll.
If you purchase a second-hand LYNX unit, you must email Liquivision at info@liquivision.ca and
provide the following inform ation:
- LYNX seri a l numb er
- Date pu r c hased
- Who you purcha s e d you r u nit fr o m
- Your address, email and phone number
- Th e sente nce “I agree and accep t the LYNX User Agreement and Warranty”
Thi s is req uired to transf e r the balance of the Warr anty from the previous owner to yourself.
http://www.liquivision.com/activate.php.
Entering Your Free
the date and time of your registration will be
the contact
Unlock Th e L ocator Feature of The LYN X (OPT I ONAL, Free, BETA Software)
During the LYNX registration process above, after obtaining your LYNX Unlock PIN, you will be
prompted to either “Unlock The Locator Feature of the LYNX ”, or to “Skip This S tep”.
The LYNX ha s an optional Locator feature that al lows a di ver using a LYNX to obtain directional
location information (an approximate bearing) towards other divers wh o a re using a Liquivision T ank
Transmitter or landmarks marked with a Liquivision Location Transmitter. While we have made every
effor t t o make this a useful feature, i t s e f f ect ivene s s is highly in fluenc e d by th e d iver’s abili t y to “wor k
with the softwar e”, i.e. to keep a LYNX, Tra nsmitt er a nd b ody or ient atio n tha t i s favo rabl e to sig nal
reception and accuracy. Also, this is the first time such a feature has been introduced to the broad
recr eationa l divin g market, and so it i s, in its natur e, very exp erimen tal. We sim ply don’ t know ho w
people will want to us e or mis-use it.
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For t his r ea s on , t he Lo ca tor f eat ur e i s an optional, free BETA upgrade to the LYNX-AI funct ional ity.
The L ocato r fea ture i s pr ovid ed thr oug h an e xperi menta l so ftwar e in B ETA r elea se. T o act ivate it on
your LY NX, y ou must a cknowl edge tha t you hav e read t hrough t he prope r way of u sing it, t hat you
und ersta nd it s limi tati ons, a nd tha t you acc ept that it is not covered by the LYNX warranty in any
way. Once you have done so, you will get a Locator PIN from the Liquiv ision we bsite, similar t o the
LYNX Unlock PIN.
Ther e is absolu tely n o requir ement t o unlock the Locator feature of the LYNX . The LYNX will still
provi de Air I ntegra tio n functi ona lity, in clu ding th e option t o monit or your own, you r Buddy’s or your
Group’s tank pressures, and will provide you with remaining Air Time information for your own tank.
If you choose to unlock t h e L oca tor f eature of the LYNX, you will have to enter the Locator PIN you
have obtai n ed into y ou r L YN X co m puter in the
Locator PIN menu. T he pr o c e s s for e ntering this PI N is
very similar to the one for entering the LYNX Unlock PIN. In fact, after you enter the Locator PIN
menu, you can follow the same st ep-by-ste p PIN e nt ry instructions as for the LYNX Unlock PIN.
Those instructions ca n be found here:
Ent er ing Y ou r F r e e Soft wa re Activat ion PI N , Sett i n g T ime/D a te & Ba ttery Type
Setup Time/Date & Battery Type
Once you have registered and unlocked your LYNX unit, th e mai n scr een will still sa y “NOT R ead y To
Dive: Edit Your Time/Date, Battery Type”.
You will find step-by-step information on how to setup the Time/Date and Batt ery Type here:
Ent er ing Y ou r F r e e Soft wa re Activat ion PI N , Sett i n g T ime/D a te & Ba ttery Type
It is important to set up the cor rect batte ry type for both your LYNX and your tr a ns mitter(s) to ensure
accur a te batt ery moni t or ing.
Read The Manual
Before your fir st dive wit h t he LYNX, r ead thi s ma nual a nd mak e sur e you full y under stan d it. After
any period of not using your LYNX, we recomm end that you re-read the ma nual to make sure you fully
know and unders tand how to use it.
If you have any questions, refer first to t his ma nual, the n to the F AQ o n the L iqui visi on we bsite and
finally to your LYNX dealer.
If non e of this helps, contact Liquivision support at
www.liquivision.com/contact.php .
Familiarize Yourself With Tap-Navigation
Liquivisi on’s ta p -ba s ed navi gat io n has what we cal l a “one be er lear nin g cur ve” . Sit do wn on your s ofa
for ha l f a n hour with a b e er , a nd ta p throu gh the LYNX menus to familiarize yourself with the tapping
int er acti on and t h e general menu layouts.
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Air Integrated Dive Computer User Manual
We recommend splitting the bungee in two and
it, so if
sealing the knot s at the end of
Color OLED Display
Battery Compartment
Front Bungee Holes
Front Strap Holes
Back Str ap Holes
Back Bungee Holes
Infra Red Aperture
Serial Number & CE Mark
Ultrasonic Transducers. NOT A BUTTON! Do not push!
Ultrasonic Transducers. NOT A BUTTON! Do not push!
™
GETTING STARTED – FEA TURES OF YOUR LYNX UNIT
(for connection to PC Interface)
HOW TO INSERT THE BUNGEE CORD
using two separate pieces to secure your un
one breaks, the other holds.
- W e reco m mend h eatthe bungee cord (pull the knot away from the LYNX
casing, h eat it up lightl y, an d for m the hot p la stic into
a hard ball that can’t slip back through the bungee
hole).
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Screws – DO NOT OPEN – DANGER!!! 200 VOLTS
7/16”-20 threads for high pressure port on a 1st stage
Viton® Oxygen compatible O-Ring AS 568A-012
Battery Cap
T1 Serial Number (SN) is engraved on the clear base .
Blank Space Since transmitters look alike, this is for
T1 Serial Number: same as on the sticker
Year o f M anufa c t ure
CE Marking
Recycle/dispose s afely, do not throw in trash
Green LED flashes during packet transmission
Transpare nt base of f ers visua l in s pe ction in
Ultra s onic Transducer Ring – DO NOT COVER
Overpressur e Rivet – this will blow out if the pressure
in the transmitter exceeds a bout 100 PSI. If this happens,
the T1 should be returned to Liq uivision fo r repair
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GETTING STARTED – FEATURES OF YOUR T1 TRANSMITTER
yo u to put an identifying ma rk on your T1 tr a ns mitter –
your name, f or e xamp le. Us e a p erman ent mar ker.
This is hard to see once the T1 is mounted on a tank, so
the SN is ALSO on the sticker
Liquivision Products, Inc -17- Ma nua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
case of suspected water entry int o housing
this area! Do n ot s tick any other stickers onto the
narr ow part of the T1. It could impair the
transmi ssi on ability of the transmitter.
Air Integrated Dive Computer User Manual
7/16”-20 threads for high pressure port on a 1st stage
O-Ring - Viton® Oxygen compatible AS 568A-012
U-2 Serial Number (SN)
Blank Space Since transmitters look alike, this is for
Overpressur e Rivet – this will blow out if the pressure
in the transmitter exceeds a bout 100 PSI. If this occur s,
Knurl ed surface, for ea sy opening/closing of battery
CE Markings, including:
L1 Loope d Bas e
U-2/L1 Ultra s onic Transducer Ring Inside. DO
Grey : Tran smitter Housing Base
Dark Red: Transmitter Housing Top
Battery Compartment: you can access this by
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GETTING STARTED – FEATURE S OF Y OUR U-2/L 1 TRANSMITTER
compartment
the U-2 should be returned to Liquivision for repair
Recyc le/dispos e s afely, do not throw in trash
Year of manufact ure
Loca tion of manufacture
you to put an ide ntifying mark on y ou r U-2 transmitter
– your nam e, f or e x ampl e . Use a permanent ma r ker.
L1 Location Transmitter:
The L1 Location Transmitter is constructed very
similarly to the U-2 Tank Transmitter, other than it h as a
larger top to accommodate a larger battery, and a looped
base that you can pass a carabiner or a line through:
unscrew ing the Top from the Base.
Liquivision Products, Inc -18- Ma nua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
NOT COVER this area! Do not stick any stickers
on this part of your transmitte r housing. I t could
impair the transmission ability of your unit.
Air Integrated Dive Computer User Manual
Plane for “Up” and
DOWN TAP
Plane for “Left”
LEFT TAP
Aim for th e center
sensor!)
RIGHT TAP
UP TAP
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GETTING STARTED – HOW TO TURN ON/TAP YOUR LYNX
of the unit (but
try t o avoid the
and
“Right” Tapping:
Your Left and
Right taps should
follow this
ima gi nary li ne
(parallel to screen)
Tap on the vert ical surface ( s hown in green)
DO NOT tap on the angled surface (shown in red) or the sensor!
Aim for the center of the unit.
“Down” Tapping:
Your Up and Down
tap s should follow this
ima gi nary li ne
(parallel to screen)
Aim for th e center
of the unit (but try
to avoid the sensor!)
Plea s e re f er to the s hort vide o on tapp in g provided her e :
For your first LYNX interactions, hold your LYNX in on e hand, a n d use the other ha nd to tap it . Onc e
you ar e fam ilia r wit h the tappi n g tec hni qu e, you wi ll fin d it ea s y to ta p you r LYNX when i t is on your
wrist.
General Tapping/Menu Guidelines:
*Eve rywh ere in t his manual , you will f ind r eferen ces to t app ing t hree/ five ( 3/5 ) time s to tur n the uni t
on, or t o enter m enu mod e. T he de faul t set ti ng is t hr ee ti mes, but y ou ca n adjust it t o five ti mes i f you
are concerned a bout acci dental taps causing you to enter menu mode (Pr eferences -> Tap Count).
Aim for th e center &
center-left of the unit
www.liquivision.com/videos.php
1) tap “Down” three/ f ive tim e s * to tu rn the uni t on, or to enter int o me nu mode
2) tap “Down” or “Up” to scroll through menu items
3) tap “Left” or “Right” to enter a menu item
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To turn your LYNX on, tap D ow n three/five times in quick succession.
1. Yo ur LYNX will turn on and you will see this scr een:
3. Yo ur LYNX will e nter me nu mo de, and you will s e e this scre e n:
4. Tap Down once t o re ach the “En ter PIN” menu.
5. Tap Left to enter the “Enter PIN” menu. You will see a line of nine
™
Before you can co mp lete a m enu action tha t ca n ca u s e loss o f i n f ormati on, you will be ta k e n to an oth er
screen asking you “Are you sure?”. The default answer is “No”. To confirm, you will need to scroll
down, and choose “Yes”.
The last item in a menu is “Exit”. On the surface, “Exit” will take you to the previous menu.
Underwater, “Exit” will take you back to the d ive screen.
There is also a menu timeout:
- if you s tay in a surface m e nu f or m ore t ha n 60 s e c., the LYNX will timeout to the surface display.
- if you stay in an underwater menu for more than 10 sec., the LYNX will timeout to the dive display.
Example: Entering Your Free Softwa re Activation PIN, Setting Time/Date and Battery Type
2. To ente r menu mode, tap Down t hr e e times i n quick succession.
zeroes, and the first one will hav e a cursor on it.
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6. Tap Up or Down to change the first zero to the first digit of your PIN
7. Tap Left to move the cursor to t he nex t zero , and on ce aga in tap Up and
8. Repeat this sequence until you have se t all digi ts of the PI N.
9. Once you have entered all the di gits of the PIN, tap Left once more.
10. To ente r menu mode, tap Down th ree/five times in quick s ucc e s s ion.
11. Yo ur LYNX will enter menu mode, and you will see this screen:
eared, since you have
™
code. Ta ppi ng Up will bri ng t he nu mb er s 1 -2-3-4-5… in sequ ence. Tapping
Down will bring the numbers 9-8-7-6-5…. in sequence.
Down to set the corr e ct value .
If you enter th e cor rect PIN, you will se e t h e follow ing screen:
If you mad e a mistak e in th e PIN, you will re turn to the “Unit I s Lock ed”
main scre en, and you will need to repeats St eps 1-9 again.
If you did ent er t he correct PIN, you must now setup t he T im e an d D at e ( St ep s 10-13) a nd sel ect your
Batt ery Type (Steps 14-19) to fully activate your unit.
(You may n otice t hat t he “E nter PIN” l ine has di sapp
successfully enter ed your PIN)
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12. Tap Down ten times to reach the Time/Date item.
13. Tap Left to enter t h e T i me/D ate menu. You w ill se e th e fol lo w in g list of
14. Once in the main menu, tap Up twice to rea ch “Preferences”, and tap
15. You will now be in the “Preferences” menu. T a p D ow n se v en time s u n til
16. You will see a list of battery types. T he default is “Blue-ER17335M”.
t to confirm this selection,
DISPOSABLE
RECHARGEABLE
ER 17335M
LFP123A
ICR16340
1700mAh
530mAh
650mAh
Blue
White
Green
™
options. Set up your preferred time format (12h/24h), the time of day, the
date and the yea r .
Once you are sat i s f ie d with t he Time /D a te setup, tap Down t o “ Exit” and tap
Left to select it – you w il l be taken back to t h e ma i n menu.
Left to select.
you reach “Battery Type”, then tap Left to select.
Th i s is the ba ttery y ou r u ni t ship ped with. Ta p Lef
or tap Up or Down to highlight another option, and then Tap Left to select.
If you ar e usi ng rechargeab le batteri es:
-“White - LFP123A battery”: Tap Down thre e times, then Tap Left to sel ect.
-“Green – I CR16340” battery: Tap Down twice, then Tap Left to select.
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NOTE: You will also have to set up your Transmitter battery.
17. Back in the Preferences menu, tap Down three times to reach “E xit”
18. Back in the Main menu, ta p D own fiv e times to reach “E xit” and tap
19. You will now be back in the main S urface Display and you should see
™
You ca n f ind this s etting in: Air Integration -> Transmitter -> Battery.
For more in f ormation, plea s e r e f er to
Overview of Lynx, T1, U-2 and L1 Battery Types.
Once you Tap Lef t to select, you will be autom atically t aken back to the “Preferences ” menu.
and tap Left to select it.
Left to select it.
the sur face screen.
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Air Integrated Dive Computer User Manual
The T 1 Tra nsmitter Serial N umber i s engra ved on i ts bas e. Once
and the serial number engraved on the bottom
match.
The U-2 a nd L1 T ran smitter Seri al Nu mbers a re only ma rked on
™
GETTING STARTED – SETTING UP A TRANSMITTER PRE-DIVE
Transmitter Identification/Labels
you ha v e mou nte d it on a fir st sta g e regu la tor , t his nu m ber will be
impossible to access. For this reason, every T1 Transmitter ships
with a serial numb er label wrapped around the top.
Before you mount your T1 Transmitter, check that the serial
number on the label
the stickers n ear th ei r b ase.
Once this is done, it is imp orta nt to wr ite y our na me on th e tran smit ter wit h a per mane nt mark er (see
note *** below). T his wa y you can k now at a glan ce t hat you are mount ing YO UR T 1 or U-2 Tank
Tra nsmit ter on Y O UR t ank . Ultra sonic transmi tters have a mu ch gr eat er ra ng e b ot h un der wat er ( up t o
100m/330 ft) and on land (up to 1m/3.3ft) than existing radio-frequ ency tr ansmitt ers. It is possible to
accidentally mount your transmitt er on your Buddy’s tank, and still see a pressure value appear under
the “Y ou” label on your LYNX screen during your Pre-Dive Check. Such a mix-up could be fatal.
NOTE: th e transmitter label has been selected such that its thickness and properties do not interfere
with the vibrati on of the transmit ter whic h is critical for proper acoustic opera tion. Do no t cover the
existing label with tape or other material as this could interfere wit h the tran sm itt er operation!
WARNING
Wri t e Your Name on Your Transmi tter!
It is importa nt to writ e your name or de scri pto r on the trans mitter label. This way, when you are
running your pre-dive ch e ck , you can ask a n other di ve r t o v erify that the transmitter on YOUR tank has
YOUR name or descriptor on the label.
Mixing up transmitters could be fatal!
***A Wor d On Transmitter Naming: Names vs . Color Codes
If you and your B ud dy ea ch o wn a pers ona l T ank Tra nsmi tt er, it ma k e s se ns e to eac h wr it e y our name
on your transmitter label for quick and easy recognition.
If you are a Dive Master, you may ha ve your p ersona l Tank Tra nsm itter with you r name ma rked on the
label, and y ou may be using u p to 9 ot h er Tank Tra nsmi tters t ha t b elong t o the di v e s h op . T hese should
not b e mark ed wit h stu de nt na m es on t he la be l s, sin ce stud ent s cha ng e all the t i me. I nst ea d, so me di v e
masters have su gg e sted us i n g color c oding – for ex ample, ma r king t r ans mi t ters “ Red”, “ B lue, “ G reen”,
Liquivision Products, Inc -24- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
Air Integrated Dive Computer User Manual
Your Ta nk T ra nsmi tt er ha s a Viton® O-Ring on th e met al ba s e, w h er e it s cre ws i nt o
If there is
Rings from Liquivision. Otherwise, they are available
online from suppliers like McMaster Carr (details below).
Viton® T1 metal base O-Ring specs:
T1 metal base with
™
and so o n, a nd putting them on tanks mark ed with r e d, bl u e a nd gr e en ta pe . At the start of each cla ss,
you can give your stude nts a c ol or co de u si ng a ba nda na or a piec e o f ta pe on t h eir wet suit . T hat wa y
you can ma k e sure t h e r ight tr ans m it ter i s on the right ta nk and on th e right student on th e su rfac e. Thi s
also makes LYNX setup easier – instead of constantly typing new student names next to each
tran smitter serial number, you can perma nently e nter the color y ou have a ssigne d to that tra nsmit ter.
Then , wh e n r e viewi n g the Group screen, y ou r students appear as “Red – 2000 PSI”, “Blue – 1750 PSI”
and so o n. Y ou wi l l k now who i s w ho by r e fer ring to their ba ndana or w e t su i t tape.
T1/U-2 Tank Transmitter Installation
1) Use a First Stage with Two HP Ports
Your Tank Tra nsmitt er n eed s to b e scr ewed i nto a hig h pres sure p ort on y our fi rst st age r egul at or. It
st
shoul d b e mou nted o n a 1
sta ge r egulat or w ith T WO high pr essu re port s, so you ca n a lso mou nt an
analog submersible pressure gauge (SPG). It is good diving practice to carry backup instruments on any
dive. The LYNX and T1 or U-2 T ransmitter are two battery powered electronic devices – if any one of
the ba tterie s dies, you will lose your ta nk pres sure inf ormati on. Havi ng an ana log SPG on han d will
allo w you t o co mplet e your dive safel y. I f you ar e not ca rrying a n anal og SPG, in th e event of either
your LY NX or Tank Tra ns mit ter t ur nin g o ff , you w ill ha ve t o a bor t t he res t of you r dive i mm edia tel y
and ascent to the surfa ce following proper protocol: respecting maximum ascent rates and the 3 minute
Safety Stop at 6ft/ 1.5m.
WARNING
Your Must Always Use an Analog Submersi bl e Pressure Gauge (SPG ) With Your Transmitter
If the LYNX or T1/U-2 Transmitter stop working for any reason at all, you will have no tan k pressure
information unless you a re also usi ng an analog SPG. In the event of equipment failure, you must
IMMEDIATELY abort your dive and as c end to the surface followin g proper protocol.
2) Inspec t the T1/U-2 Transmitter O-Ring
the first stag e regulator . The Viton ® O-Ring i s com pati bl e wit h Ni tro x and O2 , whil e
regular O-Rings are not. Always inspect this O-Ring pr ior t o screwi ng in y our fir st
sta ge. It s hould b e clean an d well lu brica ted with si licon e O -Ring gr ea se.
dirt , da mage or cr a ck ing, it should b e cl eaned or r e pl aced .
How to replace O-Ring.
You ca n o bta in r e plac em ent O -
Fluoroelastomer AS568A #012 (ID 3/8" OD 1/2"). Search for item 9464K17 on www.mcmaster.com
3) Screw th e T1/U-2 Transmitter into the HP Port
You ca n t i ghte n it qu ite fir mly by hand and this sh ou ld be su f fi ci ent. You can use a wr ench if you like.
It is compatible with a ¾” wrench ( 18.9mm).
4) T1/U-2 Transmitter/First Stage Compatibility
The T 1 T ra ns mit t er is slightly larger than existing radio-frequency tra nsmitter s. H owever, it ha s bee n
carefully designed to fit in almost every possible 1st stage hose configuration. If you find that the
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Viton ORing
Air Integrated Dive Computer User Manual
™
transmitt er is collid ing with an other h ose, it is usually sufficient to first disconnect the other hose, then
install the T1 Transmitter, then re-ins tall the other hose.
If the T1 still doesn’t fit, there are adapters made by Omniswivel and XSScuba that can help. See
Appendix A for more information.
NOTE: If your T1 Transmitter still doesn’t fit your 1st stag e, or you are unsatisfied with the fit, you
may return the unused and un-dove LYNX-AI to the point of purchase for a full refund within 30 days
aft er purchase. Plea s e s e e d e t a ils in the
LYNX U s er Agr e emen t & W a r ranty.
The U-2 ha s a na rr o wer ba s e tha n t he T 1, a nd i s mor e co mpa ct in g en era l. Y ou s hou ld not experience
st
any problems with mounting it on your 1
stage. However, you can also use the Omniswivel or
XSS cuba a da pter s wi t h the U-2.
T1/U-2 Tank and L1 L ocation Transmitter Orientation
The ultrasonic T 1, U-2 a nd L1 Transmitters have a maximum signal range of 100m/330ft. in clear
water an d wit h a n un obs tructed li ne-of-sight fro m the Transmitters to th e LY NX co mpu t er. T h e act ua l
Tra nsmitter r ange varies ba sed o n a numb er of fact ors, in clu ding, bu t not li mited to, wat er turbi dity,
physical obstructions, ultrasonic noi se, air pockets (su ch as a those fou nd in a dr ysuit or in a div er’s
lungs) and device orientation. We will discuss these factors in more depth in
Factors That Affect
LYNX-AI Range, but her e w e wi ll f ocu s on Transmi tt er orientation on th e t ank /on the line a nd re lati ve
to th e diver .
The ori entat ion of t he Ta nk Transmitters on the 1st stage regulator must be carefully considered. In
fact, different 1st stage regulators are built with different orientations, such that possible mountings
vary ba se d on dif fer ent 1 st sta g e regula t ors. Th e Lynx tr an smi tt er wil l wor k remark ab ly w ell ev en i n a
totally random mounting. However, if you intend or expect to get a signal from a great distance away
(>50m/165ft), then the orientation and mounting of the transmitter is quite important.
Any obstruction between your Tank or Location Transmitter and the recei ving LYNX will create a
signal “shadow”. Here are some examples that illustrate how the Transmitter signa l wor k s a nd can h elp
you o ptimiz e Tr a nsmi t ter placem e n t:
Str on g si gnal/ w ea k si gna l zon e s of the Transmitters themselves
The Transmitters have a ultra sonic tran sducer, sha ped like a tu be or a r ing, which emits the signal to
the L YN X compu ter . T his ri ng emits ultrasonic waves sideways and at an angl e (where it has surface
area ), bu t n ot di rectl y up a nd down. The fi r st set of pictures, below, shows the appr oximate position of
the ring transducer in the T1, U-2 and L1 Transmitters and t h e directi ons in w hich they emits ultrasoni c
waves. The second picture zooms out a bit - it shows that you w oul d id eall y want to e xpose th e sides o f
your Tra ns mit ter towa r ds an y LY N X co mpu ter s in th e wa ter, rat h er t han the t op a nd bott o m. B oth t h e
fi rst and second pictur es are 2D cross sections. The transducer is actually a ring, so it emits its signal all
around. The third picture attempts to show the 3D sig nal tor oid or “bag el” – you must ima gine that
your Transmitter is in the middle of the “bagel”, where th e blu e mar k er i s. Its signal emanates in ever
widening (and weakening) circles all around it.
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Air Integrated Dive Computer User Manual
1a. Transducer Ring
in a T1 Transmitter
1b. Transducer Ring
in a U-2 Transmitter
1c. Transducer Ring
in an L1 Transmitter
2. A r eas of Strong/
3. Toroidal Signal Emission. Blue dot is T1 Transmitter. Green dots
LYNX that is poorly positioned to receive signal,
You are a physical obstru ction that the ultrasonic signal has to
(our body is about 50% water) but not through air. In a wetsuit,
drysuit, your whole outfit is an impediment. For this rea son, it
han 3” awa y from your head,
ter is pointing towar ds you,
For more pi ctures, please s ee Appendix A.
1.
2.
Signal
Strong
Strong
Weak
Weak
™
Signal
Signal
Signal
Weak Signal
Signal
are L YNXes tha t are well positi oned to receive signal. Red dot is a
The biggest shadow the T1 or U-2 Tank Transmitter faces: YOU!
wra p arou nd. U ltra s oun d tra vel s w ell thr ou gh wa ter a nd li qu ids
the maj or im pedi me nt a re you r lu n gs, whi ch ar e fu ll o f air. In a
Signal
Shadow
Shadow
is important that your T1 or U-2 Transmitt er should be as far
away from your body a s possible.
1. CORRECT: T1/U-2 Transmitter is pointi ng up, it is higher
than you r shoulder a nd mor e t
minimizing signal shadow.
2. INCORRE CT: T1/U-2 Transmit
it is below your shoulder and touching your body.
maximizi ng signal shadow .
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Air Integrated Dive Computer User Manual
3. This is a top-down view, showing how the T1/U-2
sight” but how it has to wrap around
you. Thi s action
3.
™
Transmitter signal can pr oject straight out to divers located
with a clear “line-ofyour b ody to reach th e diver r i ght in fr ont of
of “wrapping around” dilutes the signal and shortens the
rang e. For thi s rea son , the diver fu rth er away in fro nt of you
ma y n ot get a signal.
IMPORTANT: to ge t good signal transmission & r ec eption, it is usef ul to keep moving/rotating around.
If the diver in this pic ture turne d 45° , then diver who was in front of him would now be off to his side,
and be bet ter placed to recei ve data. If you ever ge t a momentary “ N o Sig ” indication from anoth er
diver you ar e m on itori ng , simpl y m ov e/rotate aro und slowly but continuously. This is the bes t process
to recover a signal.
Positioning the L1 is simpler – ideally, it should be hanging on a line from your boat, in open water
free of obstruc tions . I t should be some 6 fee t below the surf ac e and 6 feet off the ground, to limit
ultra s onic echoes off the surface and bottom of the ocean or lake. You can also mount the L1 on a rod
if you want to mark a spot on t he bottom – ideally, the rod should be fairly tall to keep the L1 of f the
bottom, and the L1 sh ould be unobstructed .
Finally, this section only covered how to ensure optimal T1/U-2 and L1 Transmitter signal
transmission. It is equally i mpor tant to know how to position and use your LYNX for optimal signal
reception. That information is covered in the
Positioning Your LYNX To Get The Best Possible
Transmitter Signal section.
Turning The T1/U-2 Transmitters On/Off
On ce you r T 1 or U-2 Tank Tra nsmitt er i s s cr ew ed on to th e se con d HP por t of you r 1
and you have adjusted i t t o o pt imize i t s p ositi on, you ca n tu rn the T1/U-2 T ra nsmi tt er “On” by op e ning
st
your tank valve and pressu r izing y ou r 1
stage.
Your Tank Transmitter turns “On” within 30 seconds of sensing 200 PSI (14 BAR) of pressure. It
keeps transmitting until the pressure drops to 100 PSI (7 BAR) or less. It then kee ps trans mit ting for
another 10 minut es. T hi s is wha t we ca l l “ Lo st D iv er Mo de” . I f a di v er i s lo st, t he L oca t or fea tu r e of
his Buddy’s LYNX can help the Buddy locate the diver underwater, as long as the diver’s Tank
Transmitter keeps transmitting data packets, and Budd y is wit hin the Tank Transmitter’s range.
Since your Tank Transmit ter k eeps tra nsmitti ng when ta nk pre ssure i s above 100 PSI (7 B AR), it will
kee p t ransmitting between dives until the battery dies! To stop your Tank Tra nsmitter from transmi tti n g
bet ween di ve s, you must shut your tank valve and depressurize your first stage after every dive! This is
an important battery saving measur e, and a good ha bit to get into. NOTE: this is different from the
operation of competiti ve radio-frequency transmitters.
Turning The L1 Transmitters On/Off
Sinc e the L1 is not mou nt ed o n a T a nk, it is not pr essur e -activated. Inst ead, it turns On/O ff like a di ve
light: screw the top down and it turns on, screw the top open slightly, and it turns off. The L1 is
specially designed for this mode of activation. It has 2 O-Rings on its base.
Liquivision Products, Inc -28- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
st
stage regulator,
Air Integrated Dive Computer User Manual
1. L1 Transmitter Ful ly Open –
2. L1 Transmitter OFF –
sealed, the other O-Ring is visible
3. L1 Transmitter ON –
™
When you un-scr e w it, you shou ld u n-screw so one half of the first O-Ring is visib le
. T he second O-
Ring keeps a water tight se a l. When you screw it down, both O-Ri ngs seal . Her e is an illu strat io n:
showing 2 O-Rings
unscrewed so one O-Ring is
screwed down all the way.
Once you screw down your L1 Transmitter top, after about 30 seconds you should hear the first
transmission – a quie t “ chirp” c o ming fro m the transmitter.
Checkin g Your Transmit t er Pre-Dive
There are two ways to check if your Tank or Location Transmitter is “On” without the need for a
LYNX. When a Tank Transmitter is on a pressurized first stage, or when a Locati on Transmit ter is
screwed down to the “On” position, it begi ns to send out data pack ets ev er y 4 seconds. Each time it
sends a packet, it makes a short sound – a “chirp”. T he chirping is not very audible underwater due to
regu l a tor no ise, bu t it ca n be hear d o n the surface i n a quiet room, or on a di ve boat (i f y ou pu t y ou r ea r
next to th e transm itter). Also, every time the T1 Transmitter sends a packet, a green LED light flashes
inside it. This is visible through the clear plastic on the bottom of the T1 Transmitter. The U-2/L1
Transmitters does not have a clear bottom, but i f you hol d them in your ha nd, you ca n feel th e light
vibration that acco m pa ni es ea c h “chir p” . It is a good idea to get in the habit o f putt in g you r ea r next to
your Tr an smi tt er t o ch eck for ch irp in g ea ch t i me you set it u p. I f it doe sn’ t c hir p, t he batt ery cou l d be
dead.
The best way to check your Transmitter, and any Trans mitter s in you r dive gr oup, is t o run th e PreDiv e C heck funct i on on your LY NX (de s cr ibed i n d etail in the
Pre-Dive C heck secti on of this ma nua l) .
Generally speaking, the Pre-Dive Check allows you to verify the tank pressure and transmitter battery
life remaining of any Tank T rans mitt er pres ent in your dive grou p, and the signal and battery of any
Location T ra n smit ter as long as the Transmitter is “On” and you are within 1m/3.3ft of it. Do not start
your dive without running the Pr e -Dive Check!
WARNING
Tank Transmitters Ser ial Numbers 385 and above now trans mit in 2 PSI increments.
If yo ur Lynx is r unning V1. 07 of the Lyn x firmware or an earlier version it will n ot b e compa tible w ith
Transmitters S/N 385+, and will show half of the actual pressure .
For your Lynx to be compatible with all Tank Transmitters you must update to V1.10 or above.
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Air Integrated Dive Computer User Manual
Max: max d ept h o f last dive - blank
blank, since Air
currently “Off”,
blank, since Air
Dive Time: lengt h o f last di ve - blank
time in hours and minutes
Max: max dept h of last dive - blank
shows graphical
shows tank
Dive Time: length of la st dive - blank
: time in hours and minutes
Temperature: ambient temperature
Once you have entered the Surface Display, you can enter Menu Mode by
™
GETTING STARTED – SETTING UP LYNX PRE-DIVE
LYNX Surfa ce Display
When you turn your LYNX on by tapping Down three/five times, it will go to the Sur face Display
(provided you have unlocked it, set up the Time/Date and Battery Type as per the steps listed
here).
Tank Pressure Icon:
Integration hasn’t been turned on
Air Inte gr atio n St atus :
will s ho w PS I/BAR va l u e wh e n “On”
Tank Battery Icon:
Integration hasn’t been turned on
LYNX Battery Icon
Surface:
since you last surfaced - blank
No Fly: blank
Gas: dive ga s currently con fi gu red
Clock: curre nt tim e of day
Temperature: ambient temperature
If you turn Air Integratio n “On” an d turn you r per sonal T ank T ransmit ter “ On”, y our sur face scre en
will look like this:
Tank Pressure Icon:
tank pressure icon
Air Integration Status:
pressure in PSI or BAR
Tank Battery Icon
LYNX Battery Icon
Surface
since you last surfaced - blank
No Fly: bla nk
Gas: tank ga s currently con fi gu red
Clock: curre nt tim e of day
If you hav e already dove your LYNX, it will display infor matio n about la st di ve. For more a bout t his,
refer to the “
Exiting the water” section of the Manual.
If you do not access menus, or enter the water, it will go into sleep mode after 5 minutes. It will
cont inue to mon itor pre ssure in sl eep mod e so it wil l wake up agai n once you ju mp in the wa ter and
descend below 1.6m/5ft.
LYNX Scroll Bar
tapping your unit three/f iv e times ag ain.
If the list of menu items exceeds the space on the screen, a Scroll Bar
will appear on the left of the screen, indicating where you are in the list.
A Scroll Bar a t the top of your screen me a ns you are the top of the list , a
Scro ll Bar at the bo ttom of your screen me ans you are at the bottom.
First, Check Your Battery!
The LYNX displays its battery status, a nd that of you r Transmitter (if you have one) , on its surface
dis pla y so that y ou ca n ch eck your ba ttery p ower before y ou div e. It i s very im p ortan t to mak e sure that
you have enou gh batt ery power left to compl et e you r planne d dive.
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™
The ba tt ery s tat us i s repr e sent ed gra p hi call y wi th a ba tt er y ico n. The bat te r y ico n star ts out gree n, t hen
it turns yellow and then red. If the battery icon is yellow on the surface, you should change your
batt ery. I f t h e ba t t ery ico n is yellow under wa ter, y ou have enou gh bat t ery li fe to com plete y our div e. If
the battery icon is red on the surface, you MUST change your battery immediately. If it turns red
during your di ve, you should stop your dive and begin your ascent imme diately.
WARNING
You must change your battery immediately when the indicator turns red
Lithium bat ter i es su stai n high po w er for a long time, but once the pow er st art s to drop, it does so very
fast. A r e d ba ttery i n dicat or mea n s t hat the bat t ery pow er wi l l drop to insuf fi ci e nt po w er withi n a f e w
minutes.
Optimizing Battery Life
The battery life is significantly affected by the Air Integration mode you select and the brightness
sett ing of y ou r display. Lea r n m ore about o pt imizi n g y our LYNX’s bat t er y i n t h e s e ction “
Determining
& Optimizing Battery Life”.
IMPORTANT NOTICE
Lynx Firmware v1.11 and above significantly reduce the e xtent to w hich your Lynx will dr a in
the ba ttery w he n turne d o f f.
Wit h v1 .10 or below, the Lynx is capable of dr aining a batte ry in abo ut a week and a half,
if the unit sits unused with a battery inside.
This sta n dby drai n is sig ni fi ca ntly r educed with v1.11 f irmw are and above.
Liquivision Products, Inc -31- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
™
In Rec mode…
4.8. Simulate Dive
In Tec mode…
4.8 Simulate Dive
In Gauge mode…
4.8. Simulate Dive
SURFACE MENUS
Main Men u
Shut Off
1.
Enter PIN (only if you haven't entered it yet)
2.
LOCK / UNLOCK (only if the devi c e has been unlocke d)
3.
Dive Planni ng
4.
Mode (Rec/Tec/Gauge)
4.1.
Air Integrated Dive Computer User Manual
4.2. Dive Setup
4.2.1.
4.2.2.
4.2.3.
4.2.4.
4.3.
4.4.
4.5.
4.6.
4.6.1.
4.6.2.
4.6.3.
4.6.4.
4.6.5.
4.7.
5. Pre-Dive Check (only if you are using one or more tra nsmitters)
Air Integration
6.
6.1.
6.2.
6.3.
6.3.1.
6.3.2.
6.4.
Compass
7.
7.1.
7.2.
Conservatism
PO2 dive
PO2 deco
Last deco s top
Gas
Compute NDL
Runtime
Alarms
Alarm s O n/O f f
Depth
Time
Ascent Rate
Descent Rate
Your Saturation
Mode
Units
Transmitter
Set All Units (only in v1.11 or previous firmware versions)
A0000 You Off
6.3.2.1.
6.3.2.2.
6.3.2.3.
6.3.2.4.
6.3.2.5.
6.3.2.6.
6.3.2.7.
6.3.2.8.
6.3.2.9.
Advanced
Check
Calibrate
Type
Serial #
Name
Max
Mid
Low
Reserve
Battery
Copy To
4.2 Dive Setup
4.2.1
4.2.2
4.2.3
4.2.4
4.3
4.4
4.5
4.6.
4.6.1.
4.6.2.
4.6.3.
4.6.4.
4.6.5.
4.7
Conservatism
PO2 dive
PO2 deco
Last deco stop
Gases
Computer NDL
Runtime
Alarms
Alarms On/Off
Depth
Time
Ascent Rate
Descent Rate
Your Saturation
Alarms
4.6.
4.6.1.
4.6.2.
4.6.3.
4.6.4.
4.6.5.
Alarms On/Off
Depth
Time
Ascent Rate
Descent Rate
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™
8. Dive Log
Log Summary
8.1.
Log Detail
8.2.
Depth Graph
8.3.
Temperature Graph
8.4.
Display Settings
9.
Brightness
9.1.
Au to Dim
9.2.
Refresh
9.3.
Layout
9.4.
Velocity
9.5.
Stopwatch DF (this setting applies only to Gauge mode)
9.6.
Dark Mode (this setting applies only to Gauge mode)
9.7.
Show Hours
9.8.
Show TTS
9.9.
9.10.
9.11.
Preferences
10.
10.1.
10.2.
10.3.
10.4.
10.5.
10.6.
10.7.
10.8.
10.9.
10.10.
10.11.
Salinity
11.
Time/Date
12.
12.1.
12.2.
12.3.
12.4.
12.5.
Connect to PC
13.
Locator PIN
14.
Show MAX
Simulate Dive
Units
Log Period
Tap Sensitivity
Tap Count
Minimum Dive
Minimum Surface Interval
Status
Battery Type
Bat t ery Meter
Battery Test
Temperature
12h/24h
Time
Date
Year
Calibrate Time
1. Shut Off
Choosing this menu option will put your LYNX in Sl eep Mo de, whi ch is d esigne d to use minimu m
batt ery. The LYNX will still wake u p when ta pp ed 3 /5 time s. It will a l so still keep track of surrounding
pre ssu re so it can wa k e up once y ou enter the water .
2. Enter PIN
This i s where you enter the free PIN you receive upon registering your LYNX unit. There is a step-by-
step d escr ipti on o f the PI N ent ry pr oce ss in t he
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Air Integrated Dive Computer User Manual
To lock, just select the “LOCK” menu item by tapping on the side of your
trouble ent ering the number). The screen will also r emind you how to perform
™
Time/Date and Battery Type section of the manual. You may be r equi red to re -enter this PIN after a
software update, so please keep a written record of it for reference.
3. LOCK / UNLOCK
This menu ite m allow s you to lock al l your m enu setti ngs so th ey cann ot chan ge accid entall y due to
random shaking e.g. during a bum py ride to the dive s it e or knocking aro und in your backpack.
unit. You will have to ent er the lock se quence. It is “123” and you inp ut it in
the s ame way as yo u input your PI N number (refer to
Entering Your Free
Software Activation PIN, Setting Time/Date and Battery Type if you ha ve
the lock sequence
. Your LYNX is now loc ke d, and the menu item changes to
“UNLOCK”
To unlock, just select “UNLOCK” by tapping on the side of your unit. You
will have to en ter the unloc k s equence. It is also “123” and you input it in the
same way as you input your PIN number . The sc reen will also remind you
how to perform the unlock sequence. The unlock sequence prevents random
unlocking of the unit – it is very improbable that random shakes will input
that sequence.
When a unit is put in “LOCK” mode, the scrollbar will turn Red. Once you
unlock, the scrollbar will turn back into green and you ca n proc ee d w ith you r
use of the KAON.
4. Dive Pl an ning
This w hole su bme nu is dev oted to pl anni ng your dive – her e you ca n set up you r unit f or Rec, Tec or
Gau ge Mo de di ving, you ca n ent er y our ga s es, s et up a lar m s an d co mput e you r No De co Limit (ND L)
or you decompression ascent sch edule. Your NDL or decompression schedu le computa tions will match
what the LYNX wi ll di s pl ay duri n g y our dive, provided y ou f ollow you r dive pl an precisely.
The LYNX offers a 1-ga s Rec mo de a nd a 3-Gas Tec m o d e. B oth mo dels u tilize the proven Bühlmann
model with ZH -L16C M-Value s. T here a re di ffer enc es bet wee n the t wo mod es bas ed on th e int ended
type of diving.
From a decompression perspective, the 1-gas Rec mode is optimized for recreational diving: two
or thr e e div e s co mpl ete d i n sho rt suc ce ssi on, wi th r elativ ely s hort (30 -60 min) surface intervals, and a
primary goal of safely maximizing the no-decompression time for each dive while appropriately
penalizing the diver for short surface intervals. This mode operates on the a ssumpti on that the di ver
does not wish to deliberately enter decompression but provides a safe a scent procedure in the event the
NDL is accidentally passed. This model genera lly ali gns with the P ADI tabl e s.
Fro m an air-integratio n perspective, 1-gas Rec mode gives you t he mo st options : y ou can track
your own air by choosing “Solo” mode in the Air Integration menu, your Buddy’s air by choosing
“Buddy” mode, or several divers’ air by choosing “Group 4” or “Group 9” modes. You ca n a lso tra ck a
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Location transmitter in “Buddy”, “Group 4” and “Gr oup 9” m o de s by describing a given transmitter as
“Location” rather than “Tank”. For more information on this, read the “
Air Integration - Mode”
section.
The 3 -g as T e c mo de is o ptimize d f o r nitrox de c o m pr e s s io n di v ing : one or tw o di ves com pl et ed in a
day, with a mu ch lo ng er (2 -3 hour) su rfac e int erval, and a pr i ma ry goa l of o f fer ing safe decompression
schedules ( wit h no re gar d for n o de co mpr es sio n li mit s). It allows the user the freedom to choose from
one of three conservatism levels using Bühlmann with gradient factors (100/100, 30/85, 30/75). It
aligns with DecoPlanner and similar dive planning tools using the Bühlmann model with gradient
factors.
Fro m an air-integration perspective, 3-gas T ec mode focuses on yo ur 3 tanks: you can track your
own air i n u p to t hre e ta nk s i f y ou pla ce a Ta nk Tr ansmi tter on ea ch ta nk. You do not have the option
to mo nitor an yone els e’s gas . However, you can set u p a ny of the remaining 7 transm itters to “T a nk ” or
“Locati on” to monitor other divers’ location or to obtain a signal from your Location Tran smitter. For
more information on this, read the “
Air Integration - Mode” section.
Gauge M ode doe s no t do any de c o mpr e ss io n c alcul atio ns a nd has limite d air int egration features.
The Ga u ge M ode div e sc re en ha s no t b een r e -de sign ed t o show your o wn a ir (t he grap hi cal t a nk ic on)
or you r Budd y’s a ir in th e top le ft o f the s cree n. T he onl y wa y you ca n see ta nk pr essur e infor mati on
when i n Gauge Mode is by selecting “Group-4” or “Gr ou p -9” modes. If you want to monitor your own
air or your Buddy’s air in Gauge mode, you need to set your tank and your Buddy’s tank as part of the
Group tanks. If you wish to use a Location transmit ter in Gauge mode, simply describe one of the
“Group 4” or “Group 9” transmitters as “Location” rather than “Tank”. For mor e in format ion o n this,
read the “
Air Integration - Mode” section.
4.1 Mode (Rec/Tec/Gauge)
This menu item allows you to select between Rec, Tec or Ga uge mode of operation. The default sett in g
is “Rec Mode”, and the def aul t gas is “Air”.
Rec Mode
In Rec mode, the LYNX functions as a one-gas computer. The default mix is Air. Y ou can set any mix
from 21%-40% oxygen, including common mixes such as Air (21%), 32% nitrox or 36% nitro x.
The Li quivision Recreational Diving Model in Rec Mode has bee n carefully tune d to maximize bott om
time on both the first dive of the day and on repetitive dives while maintaining diver safety.
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DCS risk is carefully managed and in the same ranges as most popular dive tables in use today.
Gradient factors contr ol the overall no decompr ession time and reduction factors are applied dur ing
surface intervals to increase safety.
In this mode, the LYNX’s primary function is to provide you with your No Decompression Limit
(NDL), i.e., the amount of time you can spend diving without incurring any decompression. If you
complete you r dive within t h e NDL p eriod, t he LYNX will prom pt you t o co mple te a
Safety Stop
for 3
minute s a t 5 m / 15ft. I f, a t any time du ring th e s e 3 minutes, you dr op below 6.5m / 21ft, the safety stop
counter will turn off and reset. It will begin again once you return to the safety s top depth of 5m / 15ft.
Should you continue diving beyond your NDL time – and you should only do this if you have
knowle dg e o f de c o m pr e ss ion divi ng an d sufficient gas to complete the dive safely - the LYNX will
start calculating your decompression obligation and indicate the depth and duration of any
deco mpress ion stops you ne ed to com plete t o exit the water sa fely. T he unit calculate s y our NDL or
1
your d eco plan u sing a cu stom mo del bas ed on the pr oven B ühlman n ZH-L16C
model. This model
generally aligns with the PADI tables.
If you have a T ank Transmitter set up on your tank, and you have turned the LYNX
Air Integration
featu re “O n”, y ou will b e abl e to tra ck you r ta nk pr essure i n PSI /BAR a nd obta in a n Air T ime va lue.
The Air Tim e va lue appears 4 minutes into the dive, and estimates how much dive time you have left
based on your breathing rate and current depth. It will reach zero once your tank pressure hits 700
PSI/48 BAR. This normally sufficient to ascend from a no decompression dive recreational diving
dept h w hile re s pe cting pr o p er ascent ra tes and a 3 m i nu te Safety Stop at 6 ft / 1 .5m, bu t it w i ll likely not
be sufficient ga s to complete a decompression schedule. The Air Time feature is not compatible with
decompression diving! You must make your own gas calculations if you are planning a
decompression dive.
WARNING
In a No Decompress ion dive, y our rema in ing Air Time tak es precedence over remaining NDL time.
If you r Air Time is less than your N o Decompression (NDL) time, a lwa y s follow the Air Time value. Start
your no decompression a scent before or immediatel y when Air Time reaches zero (700 PSI/48 B AR).
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Plea se note t hat wh en you swi tch fro m Re c mode to T ec mode for t he fir st
portion of this manual.
™
WARNING
The Air Time f eature is N OT des igned for use with decompression divin g.
700 PSI/48 BAR will li ke ly not be eno ugh gas to complete your decompr ession schedule!
You must make your own gas calculations if you are planning a decompression dive, and you must plan to
have sufficient gas to co mp l ete your d e co mpre s si on sa f e ly .
Finally, if you have more than one Tank Transmitter set up in Rec mode, on a Buddy’s tank, for
example, you will be able to monitor your Buddy’s tank pressure. If you activate the Locate feature
(more details in the
Unlock The Locator Feature Of The Lynx section), then you will a lso be able to get
a directional indic ation of your Buddy’s location.
Tec Mode
In T ec mod e, t he LYNX all ows u p to thr ee nitrox gas mixes, each from 21%-100% oxygen. The first
mix will be your Dive Gas, the second and third w ill be Deco Gas 1 and Deco Gas 2.
Tec Mode uses the same basic model. Preset gradient factors control the overall decompression
calculations but no reduction factors are applied during the surface interval. Using Tec Mode for
repetitive recreatio nal divi ng will yield m ore aggr essive N DL’ s afte r short surfac e interva ls re ducing
dive safety. Divers should use the mode best suited for their intended dives.
In thi s mo de th e LYNX a ssu me s y ou a re pla nni ng to i ncur s ome decom pressi on obliga tion a nd giv es
you control over a number of extra settings, such as your level of
Conservatism, you r Dive PO2 and
Deco PO2 levels, a nd the dept h of your La st Deco Stop (please see the relevant sections of the Dive
Setup menu for mode information). You will also have the option to setup and review your Runtime.
time, you will be prompted to enter your desir ed level of con ser vati sm wi th
this “Warning” screensh ot. Tap Left to exit th is screen.
You can edit your conservatism by goi ng to “D ive Setu p > Con servati sm”
menu item. The default setting is “2”. For more information on levels of
conservatism, plea s e review t he “
Conservatism” section of the “Dive Setu p”
Dur ing your dive, t he LYNX will b egin by di splayi ng you r No Dec ompression Limit (ND L). If you
complete your dive within the NDL time, the LYNX will tell you to complete a safety stop for 3
minu te s at 5 m/15ft. During t hese 3 minutes, if you drop bel ow 6.5m/21ft, t he saf ety sto p count er wi ll
turn off and reset. It will begin again once you return to the sa fet y st op dept h o f 5 m/ 15ft.
Should you continue diving beyond your NDL time – and you should only do this if you have
knowle dg e o f de c o m pr e ss ion divi ng an d sufficient gas to complete the dive safely - the LYNX will
start calculating your decompression obligation and indicate the depth and duration of any
deco mpress ion stops you ne ed to com plete t o exit the water sa fely. The unit calculates your ND L or
1
your d ecompression pla n usin g Bühlma nn ZH-L16C
(pleas e s ee th e
Dive Setup > Conservatism section of the ma nual for m ore informati on).
, with one o f three possible levels conservatism
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If you have a T ank Transmitter set up on one, two or three of your tanks, and you have turned the
LYNX
Air I ntegr ation feature “O n”, you will be abl e to track your tank p ressure in PSI/BAR for the
tank you are currently br eathing from. However, you will NOT be given an Air Time value, sin ce it is
impossible to calculate this across multiple tanks.
If you set u p the rema ini ng 7 t ransm itter s avail abl e to you in the sur face
you a cti va t e the L oca t e fea tu r e (m or e det ail s i n th e
Unlock The Locat or Feature Of T he Lynx section),
Air I ntegr ation menu, a nd i f
then you will be able to monitor 7 other divers or Location Transmitters using the Locate feature
underwater.
Gauge Mode
In Ga u ge m od e, t he LYNX a ct s as a bott o m ti mer a nd pr ovi de s inf or mat io n on di ve d ept h a nd ti me. I t
does not kee p track of your No Decompression Limit, decompression obliga tions or tissue saturation.
IMPORTANT NOTE ON SWITCHING TO/FROM GAUGE MODE
In Gauge Mode, surface off-gassin g c ontinues when the devi ce is above
water. Once the device is underwater, all deco calculations are sus pended.
When switchi ng from Gauge Mode to Rec/Tec Mode, the deco information
will no longer be accurate, since prev ious tissue values are used.
When you switch out of Gauge Mode, you will see this warning:
Tap Left to con tinue.
Here is an example of a situation where this warning may arise:
Dive 1: LYNX in Rec or Tec mode, switch to Gauge mode
Surface i nterval – LYNX continues to track your post-Dive 1 tissue saturation
Dive 2: LYNX in Gauge mode. LYNX stops tracking your post-Dive 1 tissue s aturation.
Surface interval
Dive 3 : LYNX In Re c or T ec mo de. LYNX tissue saturation values ar e wr ong!!! LYNX reverts to
post-Dive 1 tissue saturation values that were valid at the mom ent you started Dive 2. It does not
account for the ongo ing desaturation from Dive 1, no t for the adde d s aturation of Dive 2.
4.2. Dive Setup (only in Tec Mode)
4.2.1. Conservatism
Your LYNX cal cula tes N o De compr essi on Li mits ( NDL s) or you r de com pre ssion t imes based on th e
1
proven Bühl man n ZH -L16C
algorithm. T his m enu it e m all o ws you t o add con s erv ati s m to t h e LYNX
decompre ss i o n ca lcula tions us ing thre e pre-s et l e vels:
Level “0” - standard Bühlmann ZH-L16C with no added c onservatism ( G radient Factors 100/100)
Level “1” - Bühl ma n n ZH-L16C with some added conservatism (G radient Factors 30/85)
Level “2” - Bühl ma n n ZH-L16C wi th more adde d conservatism (Gradient Factors 30/75)
4.2.2. PO2 dive
Here you can setup the maximum PO2 for your Dive Gas. T his will define how deep your Dive Ga s
will still be considered breathable. The default (and maximum) value is 1.40. You can set it to any
value between 1.0-1.40 bar, i n 0.05 increments .
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The default gas in R ec Mode is “Air”:
To modify it, tap Left and the cursor wi l l highli ght the ga s :
Then tap Up to i ncrea se the o xygen % t o your d esired va lue. T he gas will
Once you have reached your desired value, say 32%, tap Le ft a gai n a nd t h e
™
4.2.3. PO2 deco
Here you configure the ma ximum PO2 for your Deco Gas. This will define how deep your Deco Gas
will still be considered breathable. The default (and maximum) value is 1.60. You can set it to any
value between 1.0-1.6 bar, in 0.05 increments.
4.2.4. Last de co stop
Here you ca n set up the depth of your last decompression stop. The default value is 3m / 10 ft, but you
can al so set it to 6m / 20ft, so you won’t be affected as much by wave a ction during your last stop.
Please note this will only affect the depth of you last decompression stop if you incur decompression
durin g you r dive . This will NOT a ffect the depth of the safety stop i n a No D ecompr essi on dive (3
minutes at 5m / 15 ft)
4.3. Gases (only in Rec & Tec Modes)
Here you ca n configure your one gas i n Rec Mode, a nd up to three gases in Tec Mode.
Rec Mode
swit ch fr om “ Air” t o 22 %, th en 23 % and so on with each u pwar d ta p. T he
maximum value is 40%.
value will be set.
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The default Dive Gas in Te c mode is “A ir”.
Mode you can increase oxygen% up to 100%. You ca n also i ncrease
By tapping into the variou s menu items, you could set up this sample gas
In Rec Mode, these values will only be affected by
In Tec mode, these values will be affected by the
NDL on Air
NDL on 36% Nitrox
™
Tec Mode
The defaul t setting for Deco G as 1 & 2 is “Off ”
In Te cit in increm ents of 10.
setup:
Dive Gas: Air
Deco Gas 1: Nx 50
Deco Gas 2: O2
4.4. C om pute NDL (o nly in R ec & T e c mode s)
This co mput e s the N o D eco mpr e ssi on Li mit you ca n ex pe ct at a gi ven dep th. Th e de pt h valu e s ca n be
provided i n feet or met r e s , de pendi n g on t he
Units you select in the Preferences menu of the LYNX.
the gas you sel ect:
gases you select and the level of conservatism.
4.5. Runtime (only in Tec mode)
In this section you can enter your dive plan and see what ascent schedule will LYNX compute
underwater, assuming that you follow the dive plan precisely. You can configure two types of
waypoints:
- Normal: where you set a target Depth and a Time spent at that depth, and your LYNX
us es this information to create a dive plan
- Switch: wh ere you set a target Depth and a Gas you want to switch to at that depth, and
your LYNX uses this information to create a dive plan
Her e’ s ho w y ou ca n u s e thi s f eat ur e. Let ’ s assume you have set up 3 gases: Dive Gas: 32%, Deco Gas
1: Air, Deco Gas 2: 100% O2.
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Ex: “Square” Profile
. Your
a switch to
™
If you are diving a typical “square” profile, where you descent to a certain depth and stay there for a
certa in period of time bef ore hea di n g u p, a ll y ou w i ll need t o cr ea te is o n e “ N ormal” waypoint to g et a n
estimated dive/decompression plan.
Set up a Normal waypoint
at 20m (ca. 65 ft) on 32%
for 20 minutes
LYNX suggests
O2 at 7m (ca. 23 ft) and a
total dive time of 21:59
If you plan t o div e a multi -level dive on one gas, you will need t o set several “Normal” waypoi nts t o
describe your d ive and get an estimated decompression plan.
Ex: “Multi-Level” Profile
You already have a waypoint set up at 20m for 20 mins breathing 32% nitr ox. Instead of selecting
“Compute Deco”, you “Add” a waypoint at 30m for an additional 10 mins. Then select “Compute
Deco”. Your LYNX suggests a switch to O2 at 7m and a tot al dive time of 32:59.
If you plan to dive a multi-level dive with different mixes for each level, you will need to set a
“Switch” waypoint to tell your LYNX to plan a gas switch. Let’s say that after 20m for 20 mins
brea thing 3 2 % ni t r o x, you would like to spend 10 minutes at 40m (ca. 130 ft) a nd w ou l d like to breath e
Air there. Then you would set up two “Normal” waypoints, and add a “Switch” waypoint:
As you can see, i n this la st exam ple, y our LYNX pr ovid es a div e plan wh ere you br eat he 32% duri ng
your dive leg at 20m, then descent to 40m and switch to Air. Once you begin your ascent, it
recom me nds that you switch to 32% nitrox at 35m an d then to O2 at 7m . Your total dive time is 38: 18.
A few things to keep in mind…
Your LYNX assumes your firs t waypoint is depth “0” and time “0”.
When preparing your dive plan, your LYNX u ses the ascent/descent rates configured in the Ascent
Rate/Descent Rate submenu of the Alarms menu. For exa mpl e, if your f irs t waypo int is 20 minut es at
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Your LYNX can display visual alarms when you exceed any of the
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30m (ca. 100ft), and your Descent Rate Alarm is set to the de fau l t of 30 mpm, then your LYNX will
assume you spend the first minute of your dive traveling to your target depth, and only spend 19
minute s at the target d ept h.
If you have recently been div ing, and are still satura ted from those dive s, there will be an ad ditiona l
item in the Runtime submenu, which is “Remain. SI”, or “Remaining Surface Interval”. Here you can
confi gure the number of hour s and mi nutes that you plan to stay at the surface, before going on the dive
that you are planning.
One other thing to remember is that the “Compute Deco” feature might produce unexpected (and
wron g) re sult s if you manu ally enter way point s that are br eac hing y our d ecom pres sion c eilin g. As a n
example: if you enter a 90m / 300ft waypoint, after which your decompression should start at 4 2m /
140ft, but you manually overwrite it by creating next waypoint at 30m / 100ft, then you would get
erro ne ous decompression c omputations.
4.6. Alarms
foll o wi ng para m et ers:
• Ma ximu m depth
• Maximum dive time
• Maximum ascent rate
• Maximum descent rate
When the alar m is activated for any parameter, that piece of information will start blinking on your
screen for one minute. If you do not correct the situation within one minute, the para m eter di s pla y wil l
invert (i. e. it will app ear as black le tter s on colored ba ckgrou nd) until you correct si tuatio n causi ng the
alarm. Once you do that, the alarm w ill turn off.
The only exception is a time alarm. It will blink for 1 minute, after which it wi l l go back to norma l. The
rea so n for thi s is tha t you ca n n ot c or rect th e fa ct that you e xceede d y our ma ximum ti m e.
4.6.1. Alarms On/Off
The defaul t setting for Alarms is “On”. Selec ting “Off” allows you to turn all the alarms off ent irely. If
you select “Off”, even if some alarm limits are exceeded, you will not see ANY alarm. The use of this
option is discouraged.
4.6.2. Depth
Her e you can set th e d e pt h at w hich you want your Dept h alarm to a ctivat e. The default is 30m/100ft.
4.6.3. Time
Her e you can s et the tim e a t w hich you want the Time alarm to activate . The default is 60 minutes. One
use for this featu re coul d be to remin d y ou that you r maximum bott o m ti m e ha s be e n rea c hed.
4.6.4. Ascent Rate
Here you can create a set of ascent rate rules. You can set up to 5 different rules.
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The first rul e is the one wi th “Star t” on the lef t. This will a pply at
also be the default rule for any depths not covered by other rules.
feet per
minute, and set no other rule, then at any depth, exceeding this
Alternati v ely, y ou can ad d more ru l e s , in the format “Start Dept h”
than specified depth. For example, you might choose to
limit yourself to 1 meter per minute / 3 feet per minute once you're
™
all de pths of your div e, unles s you set add itional r ules. T his wil l
If, for example, you set it to 10 met ers per minut e / 30
ascen t rate will cause an alarm.
- “Maximum Rate”. These addit ion al rules will appl y on c e you get
shallower
past y ou r la st d ec o sto p, w hi ch i s pla nne d at a d ept h of 3 me ter s /
10 feet. In this case, you wou ld set a rule “S tart De pth: 10 feet”
and “Maximum Rate: 3 feet per mi n u te”.
4.6.5. Descent Rate
This menu works in the same manner as the previous menu – the Ascent Rate menu. In this case,
thou gh, a r ule i s in eff ect o nce you 're deeper tha n your specified start dep th, and first rule will apply
from surface downward, until you reach you next rule's start depth.
4.7. Your Sa turati on (only in Rec & Tec modes)
This menu item displays a screen with your current saturation calculated with the Bühlmann ZH-L16C
1
algorithm
. The information presented here takes into account data from dives you have actually
completed (by contrast, the No-Fly information on your
according to the P ADI guidel i n e s o f “D o n’ t fl y f or 12 hours after o n e da y of no -d ec ompre ss i o n divin g,
and don’t fly for 24 hours after multiple days of diving or after decompression diving”):
Your Satur ation screen afte r a period of no diving
• Your current CNS ( Central Ne rvous System) oxygen satura tion (refer to Oxygen loa ding section)
• OTU (Oxygen Toxicity Units) left for today (refer to
• Time to full desaturatio n from inert gases
• Your Allowed Pressure is a theoretical value, calculated with the Bühlmann ZH-L16C
algorithm
1
, which describes the lowest ambient pressure your body could tolerate without
experiencing decompression sickness (DCS).
• T he Altitu de valu e is a tran slati on of the Allo wed Pressu r e i nt o a t heo re ti ca l Ma xi mu m Allowed
Altitude, which is based on average pressures at altitudes. As a rule of thumb, if the allowed
pressure is 2400m or 8000ft, you should be able to fly on a commercial airliner , as this is the
target cabin pressure. However, it is important to remember that a plane ca bin can lose pressu re
for a variety of reasons and this could be a risk factor.
Surface Screen is simply a countdown
Your S aturation screen after a deep dive
Oxygen loading section)
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Finally, it i s importa nt to re member tha t all the se values – saturati on infor mati on, time to de saturati on,
allowed pressure, allowed altitude are theoretical calculations based on the Bühlmann ZH-L16C
1
algorithm
and are do not monitor or reflect your body’ s ACTUAL physiol ogical state. F ollowing this
information does not guarantee that you will avoid decompression sick ness.
4.8. Simulate Dive
This it em is here so you can exper iment wit h a scent schedule calculations, gas switches, emergency
modes, etc., without getting yourself or your LYNX wet. W hen you e nter “Simulation”, it will op en
sub-menu a sk ing y ou for dept h a n d t ime o f t he dive, its sp e e d (whe th er it’s normal – 1x, or faster – 2x,
up to 4x faster than no rm al), and the n you can s el ec t “S tart”.
A couple of th ings to note about the LYNX simulator:
• The simulator follows descent and ascent rate limits
• It takes a moment to turn on, since the simulation sta rt s a t 0m / 0ft but the LYNX consider s a dive
to start afte r d ivers descends below 1. 6m / 5.2ft
• If the time you set is too short to reach the specified depth, the simulator will just keep descending
for the allotted time , and the n s tart ascending w ithout reach ing the depth you s pecified
• Please note t hat the Auto Dim option is not avail a ble during a simul ati on
You can stop the simulation at any time by tapping the unit 3/5 times to enter the underwater menus,
and choosing “Stop Simulation” (to learn more, refer to the “
Sto p Si mu la tion” section of the manual.)
5. Pre-Dive Check
Once your gear is on, and you ha ve pressurized all the 1
Ta nk Transmitter and screwed down/turned on any Location T ransmi tter s (see the
Setting U p A Transmitt er Pre-Dive
show t he transmitter signals fr om whichever transmitters are curr ent ly con figu red a s “O n” (s ee th e
(only if you are us ing one or more transmitte rs)
st
stages of any tanks that are equipped with a
section), s elect “Pr e-Di ve Ch eck” fr om the ma in menu. Thi s will
Getting Started –
Air
Integration menu item).
Any Tank Transmitter will show up with its name, the PSI value, and the battery status.
Any Location Transmitter will show up named “Boat”, “SigOK”, and the battery status.
Ultrasound travels very far underwater, but on land, in air, it doesn’t travel far. When tra ns mitti ng in
air, the LYNX-AI has a range of around 1m/3.3ft with a good line of sight. Thu s, i f you want t o
check the status of any Tank or Location transmitter, make sure you move within range of its
transmission and then wait around 10 seconds.
A Ta nk Tr ans mit tt er shoul d g o fro m “N o Si g” in r ed to a gr een pre ssu re va lu e (e.g . 3 000 PSI) and the
battery icon should update.
A Lo cati on T ran smi tt er will do from “ N o Si g” i n re d to “ Si gO K” i n gre en and t h e bat ter y i con sh ould
update.
Any t ransmitters you have N O T configured on the s urface w ill show “Off” in blue.
If you do n ot s ee a pres sur e from a c o nfi gure d T ank Tr ans mitt er, the 1
st
stage that Tank Transmitter is
on may not be pressurized, or transmitter battery may be dead. If you do not see a signal from a
confi gur ed Location Transmitter, it may not be fully scr ewed down and turned on, or the transmitter
batter y may be dead . If yo u do NO T see a signal on l a nd, mo s t likely you will not s ee i t unde rwater
either. Fix any issu es BEFORE entering the water!
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WARNING
Import ant! Check That Everyone Has The Correct Tra nsmitter!
When running pre-di ve ch eck , ask another di ver to verif y that the transmitter on YOUR tank has
YOUR name on the label. It is possible for you to get a signal fr om your transmitter even i f it get s
mounted on your buddy’s tank and your buddy is standing next to you.
Mixing up transmitters could be fatal!
6. Air Integration
This i s where you ca n configure all the settings pertaining t o Air I nte grati on on y our LY NX – it will
allow you to decide how many and what kind of tra nsmit ter s you want to m onito r and displa y on your
screen, the parameters of each transmitter (serial number, name of person using it, the max/min
pressure of the tank and the type of battery it is using), and the type of units you want to measure
pressure in (PSI/BAR).
Please note that while you can switch between viewing modes underwater, you can only see
tran smit ter s you ha ve con figu r ed and t ur ne d “On” at the su r face, so it i s im por tant t o d o th e init ial set up pr operly . Informati on on ho w t o d o this can be found i n
Gettin g S ta rt ed – Set ti ng Up A Tran smitter
Pre-Dive.
6.1. Mode
The Air Int egrat ion Mode s availa bl e to you will va ry ba sed o n the Dive Mode you sel ect i n the
Dive
Planning menu. P lease refer to the chart on the next pa ge t o quick ly what i s ava i la ble in w hich mo de.
One-gas REC mode offers all the Air Integration Modes – Solo, Buddy, Group 4 and Group 9.
Three-gas TEC mode only offers Tec-Solo Air Integration Mode. This allows you to monitor your
three gases (dive gas and two deco gases). T here is no Buddy, Group 4 or Group 9 Air Integration
Mode in TEC mode due to the complexity of that type of calculation.
Finally, the G AUGE mode display screen ha sn’t been customized to show the graphic tank pressure
display that is available in REC and TEC modes. For this reason, it doesn’t offer Solo or Buddy Air
Integration Modes. However, the grid-like displays of Group 4 a nd Grou p 9 M odes ar e a vailabl e. If
you r eally want t o div e in G AUGE mode a nd mo nitor your ow n or y our Bu ddy’s a ir, t hen you can
configur e you and your Buddy’s tanks to be part of Group 4 or Group 9 Modes.
NOTE: the “You” tank transmitter, if turned “On”, will show up in ALL the modes (Solo, Buddy,
Group 4, Group 9), but the “Buddy” tank transmitter will only show up in “Buddy” mode. The
“Buddy” tank transmitter doesn’t become “Student 1” in Group 4/9 mode, which is a common
confusion . “ Student 1 ” is a tot a lly separa te s etting. If you want “Stu d e nt 1 ” to be th e same a s “B uddy” ,
yo u can do s o by setting up “Student 1” tan k transmitter informa tion to be the same as you r B u d dy’s.
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Dive Mode
Directional Location Function
NOTE: Setting Air Integration to “Off” turns off the entire AI feature
Air Integration
tank icon which depletes as you use up your air. Below it
there is your tank pressure value in PSI or BAR, and a battery
Air Integration Mode allows you to
tank you are breathing from. When you switch other gases, it will
Air Integration
Air Integration
™
Air Integration Mode
Off: Air Integration and Directional Location is off and your LYNX
operates very similarly t o t he s tan d-alone KAON, providing dive time
and decompression information only.
set and you will not see any tank icon displayed on your dive screen.
This i s different to having AI “On” and your tank transmitter(s) “Off”
- then you will see blue inactive tank information on your screen with
the word “Off”.
Solo (Rec): The LYNX monitors your own transmitter only. It shows a
graphical
indicator for your tank transmitter battery. The LYNX also shows your
Air Time, which is an estimate of how much longer the air in your
tank will last for. The one gas mix you have configured before your
dive displayed to the lower-right of the tank icon.
Sol o (Tec): The LYNX Tec Dive Mode allows you to configure up to
3 gas mixes, so Tec-Solo
configure up to 3 tanks. Your LYNX monitors the transmi tter on the
monitor the tank you switch to, provided that tank has a transmitter.
Directional Location: You can locate any other Tank or Location
Transmitter you ha ve configured, but you cannot vi ew gas data from
other divers’ tank transmitters in Solo Rec or Tec mode.
Air Integration
Buddy: The LYNX monitors your Tank Transmitter and one other
Tank or Location Transmitter. The big tank icon gives you a visual
status of your own tank, while your Buddy’s tank pressure is shown in
PSI or BAR in the upper left corner, along with a battery indicator for
your Buddy’s transmi tter battery. If you using a Location transmitter,
the corner label will be “Boat”, “SigOK” and the battery icon.
Directional Location: Available to locate your Buddy or Boat.
REC TEC GGE
-
- -
SCREEN LAYOUT
NDL
Group 4: The LYNX monitors your Tank Transmitter and up to four
other Tank or Location Transmitters. In this mode, the LYNX displays
your dive information at the top of the screen (depth, time, NDL, and
your tank pressure in PSI or BAR) and displays other tank names
(“Stu1” is for “Student 1”) tank pressures in PSI or BAR and
transmitter battery indicators below. If you are running a Location
Transmitter, the label will be “Boat”, “SigOK” and the battery icon.
Directional Location: Locate up to 4 Tank or Location transmitters.
Group 9: The LYNX monitors your Tank Transmitter and up to nine
other Tank or Location Transmitters. In this mode, the LYNX displays
your dive information at the top of the screen (depth, time, NDL, and
your tank pressure in PSI or BAR) and displays other tank names
(“Stu1” is for “Student 1”) tank pressures in PSI or BAR and
transmitter battery indicators below. If you are running a Location
Transmitter, the label will be “Boat”, “SigOK” and the battery icon.
Directional Location: Locate up to 9 Tank or Location transmitters.
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This is standard sum ma r y de s cr i ption o f a transmi t ter:
er for the transmitter serial
(circled in red). “YOU”
™
6.2. Units
Select PS I or BAR. I f you sele ct PSI , all tank pressures w ill b e displayed in PSI. If you select BAR, all
tank pressures will be displayed in BAR. The tank pressure units setting is independent from the
Imperial/ Metric unit s selection you can make for all ot her units in the LYNX in the
Preferences-Units
menu. This means you can run your LYN X tank pressure in PSI, but get your dept h and temperature in
meters and Celsius, for example.
6.3. Transmitter
This menu allows you to configure each of your transmitter s. NOTE: once you have compl eted this
transmitter configuration proce ss, an d both your LY NX an d Tank or Lo cation Transmitter are “On”
and within about 1m/3.3ft of each other, your LYNX should be able to display you Transmitter
information during the
Pre-Dive Check. There is no “pairing” procedure, like with some other RF
transmitters, wher e you put them close to each other and hope for the best. For the LYNX, just entering
the correct transmitter serial number ensures a connection, assuming all devices are “On” and have
batt ery power .
6.3.1. Set All Units (only with software v1.11 or below)
PLEASE NOTE: The “Set Al l Units” option has been removed from t he Air Int e gr ation menu in v1.12
and later v ersions of the Lynx firmware as a w ay to prevent acc idental i nformation l os s .
You can use “Set Al l Uni ts” to quickly make edits to all the tr a nsmi t ters at the same time:
---: is the default option.
Seq: sets all the transmitters numbers in sequence from A0000 (You), A0001 (Student 1), A0002
(St ude nt 2) and so on.
Def: restores the default transmitter labels such as “You”, “Buddy”, “Stu1”, “Stu2”, etc… from the
transmitter list. This can be convenient if you have edited the label s to names of your students in
a week-long class and want to quickl y r e st ore the m to standard labe ls.
Blk: removes the default transmitter labels such as “You”, “Buddy”, “Stu1”, “Stu 2” from the
tran smit ter li st. T hi s can b e co n veni ent i f you ar e s etti ng u p a li st o f cla s s par tici pa nt s and pr e fer
to set their nam e s u p fr o m a blank sla te rather tha n fr om a pre -exi sting setti n g.
On: Sets all transmitters to “On”
Off: Sets all transmitters to “Off”.
6.3.2. A0000 You Off
A0000 YO U O FF
“A0000” is a placehold
number. T he transmitter in the picture on the left ha s
serial number T1-A2007
ref ers to t he person using the tr a nsmi t ter. “OFF” is the
status of the tran smi tt er.
Once this line is highlighted, and you tap the side of your unit, you will open the sub-menu for that
specific transmitter and be able to edit its details. Here are the details you can edit:
6.3.2.1. Type
Dependin g on the dive mode and ty pe of transmitter , you can select from “Off”, “Tank” or “Location”.
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Her e you ca n s et up t h e seri a l numb er o f y o u r t r ansm i tter.
up/dow n to edit the digit until you reach the desired value.
Here you can set up the name you wish this
keep “You” as a default for your own
transmitter, but you can set up your Buddy’s
Max: Full pr e s su re f or this tank
(default is 500 P SI/35 BAR)
Max Pres sure
Mid Pressure Reached
Low Pressu r e Reached
RESERVE!!!
™
• REC , T EC , a n d G A UGE modes: th e fir st transmitter i n t he list is al ways con sid er e d t o be y our
tank transmitter, and only allows yo u to choose between “Off” or “Tank”.
• T EC mod e: th e se cond a nd thi rd tra nsm itter s ar e con sidere d to be you r Deco Gas 1 and Deco
Gas 2 and c an onl y be set to “Off” or “Tank”.
• All other transmitters can be set to “Off”, “Tank” or “Location”
6.3.2.2. Serial #
The ser ia l n u mber o f a tr a n smit ter i s show n on its stick er
(circled in red on the right). Tap on the left side of the
casing to move the cursor over each digit, then tap
Once you ar e don e, tap on t he l eft sid e agai n to retu rn to
the main m enu.
6.3.2.3. Name
tra nsmitt er to hav e. We re com mend t hat you
to b e call ed “B udd y” or to u se you r Bu ddy’ s
actual name, say “Mark” for exampl e.
The fol l owin g o ptions app ear only if you are configur ing a Tan k Tra ns mitter. The y w ill NOT appear if
yo u a re config uri ng a Location Trans mitter.
6.3.2.4. Max 6.3.2.5. Mid 6.3.2.6. Low
6.3.2.7. Reserve
(default 3000 PSI/200 BAR)
Mid: Pressure at which tank icon turns YELLOW in div e s cr een
(default 1500 P SI/100 BAR)
Low: Pressure at wh ich tank icon turns ORANGE in dive screen
(default is 1000 P SI/66 BAR)
Reserve: Pressure at which tank icon turns RED in div e s creen
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DISPOSABLE
RECHARGEABLE
ER 17335M
ER26300M
LFP123A
ICR16340
IMR18350
IMR26500
1700mAh
3200mAh
530mAh
650mAh
800mAh
3000mAh
Blue
Blue (FAT)
White
Green
Red
Red (FAT)
LYNX
-
LYNX
LYNX
-
-
T1, U-2
U-2
T1, U-2
T1, U-2
U-2
U-2E, L1
™
6.3.2.8. Bat tery
It is very important that you set your transmitter to the correct battery type, so that your LYNX
computer can accurately predict transmitter battery life.
The fol l owin g c ha rt s ho w s Tr a n sm it t er ba tteri e s , a nd which one s ar e co m pa tible w ith what de vi c e:
For more information on battery types and battery life, please refer to:
Over view of Lynx, T1, U-2 and L1 Battery Types and Determining & Optimizing Battery Life
WARNING
Important Note on O-Ring Compatibility
Liquivision LYNX, X e n, X e o a nd Kaon Computers, T1 Transmitters and Li qu ivisio n ba t t ery pa ck s
sold A FTER June 1, 2013 all contain the same battery cap O-Ring (“new-style O-Ring”)
This is a different O-Rin g than th e ba ttery ca p O -Rings provided with the Liquiv isio n Xe n, Xeo, Kaon
and LYNX computers, T1 Tra nsmitters, or Liqu ivisio n ba t t ery pa ck s, prior to June 1, 2013 (“old-style
O-Rings”).
You CAN use a new-style O-Ring on all Liquivision battery caps – the new-style O-Rings are “reverse
compatible”
You CANNOT use an old-style computer O-Rings on a T1 Transmitter. Doing so will flood your T1
Transmitter battery compartment.
Make sure you only use new-style O-Rings on Your T1 Transmitter.
For more in f ormation, plea s e s e e: Battery Compartment O-Ring Information
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WARNING
Import ant! Make Sure You Set The Correct Battery Type!
Your LY NX calculates and displays the remaining life of its own battery, as well as that of any Tan k or
Location Transmitter whose s ignal it is set up to rec eive. T o ge t a ccurate battery life est imates, y ou
must enter the batt ery type ea c h d evice is cu r re ntly usi ng into the LYN X. To prev e nt c on fusio n w h en
using many devices, we recommend using the same ty pe of battery across all devices.
6.3.2.9. Copy To
Allo w s you to copy th e settings from th is transmitter to another transmitter to save tim e.
6.4. Advanced
The Advanced menus include various troubleshooting tools such as the Packet Test, Graphic Test,
Phase Test, Locator Test and Message Test. You should only enter these menus on the specific
ins tructions of Liquivision Customer Suppo rt.
7. Compass
The LYNX features a tilt-compensated digital compass. The compass menu offers you options to
Cali brat e an d C heck you r c ompa s s prior t o div in g. Th e co mpa ss nee ds to be ca li brat e d ev ery t ime you
travel to a different latitude, but we recommend calibra ting it before each dive.
7.2. Calibrate
To Calibrate the compass in the LYNX, take the unit outdoors awa y fro m any metal obje cts, a nd ru n
ent er the Co mpa ss-> Cali brate menu . You will be aske d to wait a mo ment, the n to rotate t he LYNX
unit slowly in every direction, twisting it, turning it, over and over until the calibration screen says
“Done” and the unit re turns to the Compass main men u. This c an take about 1 minute .
7.1. C he ck
Then en ter t he C ompass-> Check to verify the functioning of the compass. T wist the LYNX around,
tilt it , a nd ma ke sure t ha t it i s wit hi n 10 ° o f your ana log com pa ss. I f not , r e-ru n the calibra tion pr oce ss
and re -c heck it .
8. Dive Log
The Dive Log keeps track of dives you did w ith you r LYNX, in cludi ng thei r dept h and te mperatu re
profiles. With use of a LYNX PC Interface and related softwar e you ca n download this information to
your d e sk top or l a p top (for m ore inf ormati o n on this , pleas e r ead the
LYNX PC Inter face secti o n of the
manual). W he n you r evi ew do wnl oa de d di ves , you will a ls o b e ab l e to se e th e pr e ssu re pr ofil e o f a ny
tanks that were being monitor ed during the dive.
The number of dives recorded by the Dive Log depends on the Log Period you select. The default
setting is 10 seconds and on this setting you will be able to r ecord approximat ely 1500 hours of dive
data if you are tracking one tank, with no gas switches and no decompression. Tracking additional
tanks significantly impac ts total d iv e log time:
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Dive No – the number of thi s dive, numbered in the order that it occurred
Min. Temp. – minimum temperature over th e w hole duration of the div e
the central nervou s system oxygen saturation, in percent, at the
™
Monitoring: No. of hou r s of dive time logged (at 10 second log rate)
1 tank transmitter 1500 hrs
2 tank transmitters 900 hrs
3 tank transmitters 635 hrs
4 tank transmitters 490 hrs
5 tank transmitters 400 hrs
6 tank transmitters 337 hrs
7 tank transmitters 292 hrs
8 tank transmitters 257 hrs
9 tank transmitters 230 hrs
10 tank transmitters 207 hrs
To maximize loggi n g time w ith multiple tr ans mitters, it may be wo rth setting a less frequent log r ate,
60 seco nds, for example, and get 6 times the resul ts above. To learn how to chang e the Log Period,
refer to the
Log Period section of th e manual
8.1. Log Summary
In t he Log Summary, you will see two things:
• a menu item called “P age”
• a list of your most recent dives
The “Page” menu item allows you to scroll through your dives page by page. At first, it will be
showing “1” and the list of dives below it will be your most r ecent dives. If you set “Page” to “2”, it
will br ing up th e div es that occu rred i mm ediate ly b efor e that. As y ou i ncrea se t he Pa ge nu mber , you
will see a list of older and ol der dives.
The list o f dive s wil l displ ay a short su m ma ry o f each di v e, t ha t is, t he da te a nd t ime of the di v e. Scroll
down to highlight a p art icular dive, and you will also see its maxi mum dep th and duration at the bo ttom
of the s creen. If y ou s elect a par ticula r dive, you w il l enter it s Lo g D e tail pa ge .
8.2 Log Detail
In t hi s page, you will see more detailed information on the selected dive. Below is a list of data you
will see, in the same ord er as it will be di splay e d:
●
● Max Depth
● A vg . Depth – thi s is av erag e dept h o f your w hole di v e, so if you hav e res et
average depth during the dive, it won't affect this n u mber
● Duration – dive time , in hours and minutes
● Date – day of the mont h, month and year of the dive
● Time – the tim e o f day at whi c h you e ntered the wa ter
●
● Max. Temp. – maximum temperature over the whole duration of the dive
● Surf. Int. – the sur face inter val s in ce las t dive
● CNS start –
beginning of the dive
● CN S f inish – the same value at the end of th e dive
● OTU – oxygen toxicity units acquired throughout the duration of this dive
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PSI Start – the PSI value of your tank at the start of the dive, ba sed on the
™
●
first data packet received by the LYNX from your T1 Transmitter
● PSI Finish – the PSI value of your tank at the end of the di ve
● PSI U sed – the difference between the Start and Finish values
● Depth Graph – her e you w il l se e d e pth prof ile of your dive
● Temp. Graph – here you will see temperature profile of your d ive
8.3. Depth Graph
The de pth gra ph spa ns the whol e widt h o f t he s creen, wi th the sta rt of t he di ve a t the left -most part, and
the end of dive at the right-most part. The top of the screen represents the surface of the water, and the
bottom of the s cr e en repres ents the ma ximu m d epth r each e d ( t h is numb er is also pr i nted on t he scre en ) .
By tapping, you exit back into the “Log Detail” menu.
8.4. Temperature Graph
The t empera tur e gra ph als o spa ns the whole wi dth of the scr een, wit h the start o f the div e at t he le ft -
most pa rt, an d the end of dive at the right-m ost par t. T her e are t wo nu mb er s pri nte d on th e scr e en, o ne
in the bottom-left – that is temperature represented at t he bottom of the graph, and one in the top-left –
that is temperature represented a t the to p of the graph.
Note that these values are not necessarily the maximum a nd minimum temperature values fr om the
dive. The temperature graph screen has a minimum temperature range of 5 degrees Celcius. If the
temperature ra nge o f the di ve wa s grea ter than 5 degrees Celsius then the values shown at th e t op a nd
bott om ar e t he ma x and min t emp eratu re v alu es from t he di ve. I f th e te mpera ture r ang e is l es s than 5
degr ees Cel sius the n the values at the top a nd botto m of the screen are not the max a nd min va lues
from t he dive, but are there for scale, to define the top and bottom of the graph. By tapping, you exit
back to the “Log Detail” menu.
9. Display Settings
This is a se r ies of settings you can use to personalize your LYNX’ s di s play.
9.1. Brightness
The “Bright n e ss” set tin g h as t w o levels – Normal and Low ( default is Normal). In clear, shallow water,
with lots of sunlight, you will need normal brightness to see the display properly. In deeper, dark er
water, select low brightness to save battery power. Keep in mind that hi gher brightness burns mor e
batt ery, so you s h ou l d se l ec t th e l o w e st bright ness tha t m ee t s you r n e ed s on a gi v en dive.
9.2. Auto Dim
You can us e the “ Auto D im” fea tur e to fin e-tune the brightness of your display. If you need normal
brightness on the surface and lower brightness at depth, you can set your “Auto Dim” setting to the
dept h at wh ich you want your display brightne s s to be reduc ed to Low , as follows:
• At the surface, display brightness will be at the setting chosen in the “Brightness” menu
● Once you re a ch your A uto Dim depth, and below , the brightness wil l switch to Low
● Between these two, the brightness will decrease linearly with depth (e.g., at half of the Auto
Dim depth, it w il l be halfway between the s urface brightness se tting, and Low)
If you set your Brightness setting to “Lo w”, the Auto Dim feature will have no effect. The default Auto
Dim setting is “Off”. You can adjust it in 10m / 30ft increments.
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STANDARD
SIMPLE
ALTERNATE
LARGE
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9.3. Refresh
Your LYNX display refr eshes every fraction of a second – this allows it to update the infor mation on
the s creen. You can either set refresh rate to “Nor mal” or “Fa st”. T he defau lt setting is “ Normal”. In
mo st case s, you wil l n ot n oti c e th e s cr een fli ck er/ r efr es h whe n set t o “ Nor mal” , bu t if you do, you can
set it to “Fast”. Usin g th e “Fast” s ettin g will sho rt en the battery life.
9.4. Layout
(only affects Gauge mode)
In Ga uge Mode your LYNX comes with a four underwater display layouts to choose from and y ou ca n
select your preferred layout in this menu item.
In Rec a nd T ec mod e, th e LYN X di spl a y vari e s depending on whether Air Integration is “Off” or, if it
is “On” , whether you are in “Sol o”, “Buddy”, “Group 4” or “Group 9” mode. You can cha nge this
layout in the
Air Integration surface m enu:
Diving within NDL Limit Deco Diving
Off
Solo
Buddy
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Air Integration: Off
Air Integration: Solo
Air Integration: Buddy
Air Int egration: Group
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Group 4
Group 9
9.5. Velocity
This setting changes whether or not ascent/descent rates will be displayed. The de fau lt v elo cit y dis pla y
setting i s “O f f”. When t u r n e d “ O n” , i t will s ho w th e rat e as a num ber o f me ter s or fe et per minu t e, a nd
an arrow showing whether you are asc ending o r desc endin g. The v elo city i s not availa ble in all Air
Integration display layouts – the chart below shows whe n it is av ailable and when not:
Veloci ty: S hown
9.6. Stopwatch DF (only in Gauge Mod e)
While this setting is visible in the “
sto p wa tc h is only ava il able when your LYNX is running in Gauge Mode.
This setting let s you control whether the stopwatch will be on at the beginning of a new di ve in Gauge
Mode. T he d e fa u lt s etting i s “ O ff”. This mean s that i f y ou want to use Sto p wa t c h during your di ve, you
will need to turn it “ON” first. If you change this setting to “ON”, the default behavior of the
Stopwatch will be to turn on at the start of the dive. Once you turn the Stopwatch “ON”, it will remain
on for the remainder of the dive (unless you turn it back off). For details refer to “
9.7 Dark M ode (only in Gauge Mode)
While this setting is visible in the “
Mode is only available when your LYNX is running in Gauge Mode. This option enables selecting one
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Veloci ty: S hown
Velocity: Alternates
Because of limited space, the
velocity alternates every 4
seconds with the Buddy Air
Velocity: Not Available
Di spla y S et ting s” menu of both Deco Mode a nd Gauge Mode, the
Stopwatch” section.
Display Setting s” menu of both Deco Mode and Gauge Mode, Dark
Air Integrated Dive Computer User Manual
Dark Mode : Dim
Dark Mode: Blank
Dark Mode: Stlth
Show Hours: OFF
Show Hours: ON
Especially when execut ing a decompress ion dive, it can be useful to know
™
of three low brightness color schemes for the underwater dive screen. The default setting is “None” and
the Dark Mode On/Off option is not avail ab le in the underwater men u.
There are three under w ater dive screen co lo r schemes availab le for selection :
(Data in di m gr een color)
(Nothing is displayed)
(Data in dim red color)
The “Blank” mode was created on the r equest of cave-diving i nstru c tor s, who fou nd tha t t he LYNX’s
scr een sho ne so br ightl y that i t wou ld ill umina te t he cave du rin g a lig hts-o ut drill. The “Bla nk” mode
allows students to turn off the screen on their LYNX, without interrupting the unit’s functioning.
The “St eal t h” mod e, which features all data in a dim red color, is desi gned for use at night as red has
the least impact on the quality of your night vision.
The “ Dim” mod e, which featur es all data in a dim gr een color , can a lso be used a t night to pres er ve
your night vi sion, or as an ultra-battery-savings measure in low-light conditions.
9.8. Show Hours
This settin g affects how your total dive time will be dis playe d. The default setting is “Off”, and you
will have the dive time shown as minutes:seconds, with the minutes value exceeding 60 once more than
an hour has elapsed. By selecting “On”, you will have the dive time show as hour s:minutes:seconds,
with the minutes value only reaching 59 before being converted into 1 hour and 0 minutes.
9.9. Show TTS
the T ot a l Tim e to Sur face. T h e L ynx ca n ma ke this cal culat ion ba s ed on
the di ve pr o gression so fa r, th e gas mix e s en te r e d ( if divi ng in T e c m od e)
and an optimal ascent schedule. The TTS val ue, if turned “ON” will cycle
every 4 seconds with the Air Time val ue (and the Max Depth value,
described in 9.10 bel ow , if t urned “ON” ).
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Especially when execut ing a decompress ion dive, it can be useful to know
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9.10. Show MAX
the Max Depth achieved during the dive. The MAX value, if turned “ON”
will cycle every 4 seconds w ith th e A ir Time value (and the TTS value,
described in 9.9 above, if turned “ON”) .
9.11. Simulate Dive
The final item in the “Display” menu is “Simulate Dive”. This is so you can test all your display
settings, without getting yourself or your LYNX wet. Whe n you enter “Si mulation” , it will open su bmenu asking you for depth and time of the dive, its speed (whether it’s normal – 1 x, or faster – 2x, 4x)
and th e n you ca n s elect “Star t ” .
A couple of th ings to note about the LYNX simulator:
• The simulator follows descent and ascent rate limits
• It takes a moment to turn on, since the simulation sta rt s a t 0m / 0ft but the LYNX consider s a dive
after divers descends below 1.6m / 5.25ft
• If the time you set is too short to reach the specified depth, the simulator will just keep descending
for the allotted time , and the n s tart ascending w ithout reach ing the depth you s pecified
• Please not e that the Auto Dim option is not a vailable during a simulation
You can stop the simulation at any time by tapping the unit 3/5 times to enter the underwater menus,
and choosing “Stop Simulation” (to learn more, refer to the “
Stop Simulation” section of the manual.)
10. Pref erences
In thi s m enu, you ar e abl e to a dju st an d fin e-tune settin gs of y our devi ce. You a re proba bly goin g to
use this menu only onc e, be f ore you start di vi ng with y ou r LYNX.
10.1. Units
Here, you can choose the u nits in which data will be di spl ayed o n you r LYNX:
- M etr ic uni ts: me t e rs, meters per mi nute, C e lsius. This is the default setting.
- Imperial units: feet, feet per minute, Fahrenheit
The u nit s you sel ect her e do NO T a ff ect th e ta nk pres sur e uni ts you sele ct for Ai r Int egr ati o n. T he Ai r
Integ ration unit s (PSI or BAR) can be set in t he
Air Int egratio n-Units menu. You can thus run your
LYNX i n metric units for your depth and temperature, but in PSI for your tank pr essure.
10.2. Log Peri od
The Log Period is the fr equency with whi ch dive data will be saved to memory. The default set ting is
10 seconds. Availabl e settings are 1, 2, 5, 10, 30 and 60 seconds.
The nu mber o f dives re corded b y the LYNX’s Dive Log depends on the Log Period you select. The
default setting is 10 seconds, a nd this will allow you to record about 1500 hours of one-gas recreational
diving, while monitoring your own tank pressure. This number will be reduced if your LYNX is
tracking the pressure of more than one tank:
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Monitoring: No. of hours of dive time logged (at 10 sec ond log rate)
1 tank transmitter 1500 hrs
2 tank transmitters 900 hrs
3 tank transmitters 635 hrs
4 tank transmitters 490 hrs
5 tank transmitters 400 hrs
6 tank transmitters 337 hrs
7 tank transmitters 292 hrs
8 tank transmitters 257 hrs
9 tank transmitters 230 hrs
10 tank transmitters 207 hrs
To maximiz e logging tim e with multipl e transmitter s, it may be worth setting a less frequ ent log rate.
Setting a 60 second log r ate w ill give you 6 times the dive time logged vs. the chart above.
10.3. Tap Sen sitivity
You ca n se t T ap Sen siti vit y t o Lo w or Hi gh (the de fault is Hig h). This allo ws you to adju st how soft ly
or firmly you must tap your LYNX for it to react. High sen sitivity mean s it will be very sensitive and
react to light taps. Low sensitivity means it will be less sensitive and react to stronger taps only.
Some divers like to set their Tap Sensitivity to Low when in caves or wrecks to prevent accidental
bumps on the s urroundi ng roc k or w reck to launch the ir unit into men u mode .
10.4. Tap Count
You can set th is ei ther to “3” or to “5”. By choosing eit her of these, you set the number of taps that will
wake up your LYNX from Sleep Mode, and the number of taps that will take you to the menus.
The default set ti ng is “3”. Some divers fin d that the LYNX can wake up at random due to a bump y ride
to a dive site or due to accidental impac ts during a dive in a closed environment, fo r example. In those
cases, we recommend changing the setting to “5”.
10.5. Minimum Dive
This a llows y ou to con trol th e mini mum dive ti me requir ed for th e dive t o be clas sified a s an actu al
dive. If, f or exa mpl e, you s et it to 1 minut e, then any di v e sh or ter than that wi l l n ot b e logg ed . Y ou can
contr ol thi s num ber i n incr eme nts of 10 seconds. Minimum value is 0, maximum – 600 seconds. The
default is 30 seconds.
10.6. Minimum Surface Interval
This all o ws you to set t he mi nimu m surface interval before next dive is classifi ed as new dive. If you
stay on the surfac e f or sh orter ti m e than the spe cifie d i nt erval , y our ne xt de sc ent will s till b e consi d er ed
a part of the pre viou s di v e, and both de scent s wi ll b e lo gge d as on e di ve. Y ou ca n co ntr ol th is va lue in
increments of 1 minute. Minimum value is 0, maximum – 30 minutes. The defaul t is 5 minutes.
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If you tap into this menu setting, you will see basic information concerning
DISPOSABLE
RECHARGEABLE
ER 17335M
LFP123A
ICR16340
1700mAh
530mAh
650mAh
Blue
White
Green
LYNX
LYNX
LYNX
T1, U-2
T1, U-2
T1, U-2
LYNX Battery Meter: Symbol
LYNX Battery Meter: Voltage
Air Integration OFF
™
10.7. Status
yo ur device, s uch as type, hardware ve rsion, software ve rsi on, etc.
10.8 Bat tery Type
The t y pe or cap acit y of the ba t tery is needed to ac cu r ately estimate the remaining dive time.
There are thr e e ba ttery typ es availabl e for the LYN X c o mpu ter:
You can f i n d m ore information abou t the diff er ent batt ery typ es in the se ction on
T1, U-2 and L1 Batte ry Types
10.9 Battery Meter
This menu item allows you to select the b atter y meter display style: either a battery symbol or a battery
voltage value. The default is “Symbol”. This feature is availa ble for the LYNX only. This feat ur e is not
available for tank transmitters. Tank transmitter battery voltage is shown as an icon only.
LYNX batt ery only is shown in
lower right (p ink cir cle)
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Overvie w o f L yn x,
Air Integrated Dive Computer User Manual
LYNX Battery Meter: Symbol
LYNX Battery Meter: Voltage
Buddy Air Integration ON
Group Ai r Int e gration ON
You may notice that your LYNX isn’t displaying the same water temperature
™
LYNX battery information
circled in red. A l l t h e ot her
battery icons pertain to
Transmitter batteries.
LYNX battery information
cir cled in r ed. All t h e other
battery icons pertain to
Transmitter batteries.
10.10 Bat tery Test
This men u item applies to the LYNX dive computer only. It does not apply to the Transmitters.
This feature runs a battery test for the selected LYNX battery type and displays the estimated
rema inin g dive tim e. Thi s test will ta ke a ppro ximat ely 1 minut e. Du ring t he ba tter y test, you will see
the scr een light up progressively with whit e pixels, to provide a batter y reading when the unit is at
maximum bat t ery con sumpti on.
10.11 Temperature
as anothe r device yo u are usin g. This fe a ture allows you to adjust the Lynx
temp erature reading to the one you desire.
11. Salinity
You can adjust salinity set tings here. There are three available modes:
● fresh (1 kg / l, such as freshwater lake o r riv er )
● brackish (1.015 kg / l, such as some estua ries, inland seas, et c.)
● saline (1.020 kg / l, such as open sea)
By sel e cting th e c or rect sal inity, you ensure t ha t your displayed depth will be accu r a te . LYNX, like any
other depth gauge or computer, in order to measure depth, measures pressure. Depending on water
sali nity, there wil l be a sli g ht va r ia t i on in pre s su r e at the sam e de pt h.
If you are unsure of the water salinity, choose the salinity that your dive / decompression tables were
ca librated to.
Note: certain earlier versions of LYNX software, and Xen, Xeo and Kaon software, use the values
1.012 kg/l for brackish water and 1.025 kg/l for salt water. The difference is very small.
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12. Time/Date
In t his submenu, you can set all the options connected with time and date.
12.1 12h/24h
Choose the one you prefer – th e A M/PM type ti me f ormat , or t h e 2 4-hour format.
12.2 Time
Time of day, displayed in hours and minutes.
12.3 Date
Month and day
12.4 Year
Current year. T he year should be wi thin period of 2010 to 2025.
12.5 Calibrate Time
The Liquivi s i o n LYNX uses a silicon os cillat or to keep time. Silicon oscillators are far more reliable
than quartz crystals, and are used by NASA in outer sp ac e. Howe ver, they can have a “drift” that can
cause your unit to gain or lose time at a predicta ble rate . S h ou ld your LYNX be no t i c ea bly gai ning or
losing time, you can follow our T ime Calibration Procedure to correct for your unit’s drift.
To perform this procedure, you will need access to the internet and have 48 hours during which you do
not ne e d to dive you r LYNX. Then, t a ke the following s teps:
1. Check tha t there is no pre-existing time adjustment set up on your unit:
a) Make sur e your LYNX is at room temperature and has a working battery in it.
b) Enter the “Calibr ate Time” menu.
c) Make sure tha t th e 'Da ily ' valu e i s 0m00 s (if not, set it to zero)
d) Exit that menu , an d t h e n e xi t t h e ma i n m e nu
2. Match your LYNX’s time to the time provided by the Greenwich Me an Time website:
a) On your PC or MAC, go on the internet and visit
b) Select your time zone
c) Make sure that the webs ite is now showing the correct time of day for your area
d) On your LYNX, enter the “Ready to Dive” screen and note the time of day in the lower-left
e) Then , go to th e “Tim e/D ate” menu . Set th e hou r s and mi nut es t o th e curre nt time di spla yed on
the websit e, plus one min ute (if the we bsite displays 11:45:21PM, set your LYNX to 11:46PM)
f) Move the cursor to the “Exit” item on the menu but D O NO T SELECT I T . The time of day will
not be ' set' in your LYNX until you sel e ct “Exit” with a left or right tap
g) Watch the w ebs it e ti me. A t the moment that it hits the next minute (i.e. 11:46:00PM), t hen ta p
your LYNX with a left or right tap to select “Exit”
h) Retu rn to t he “Ready t o Dive” scre en and obser ve the t ime o f da y in th e low er left c orner of
your LYNX, and co mpar e i t t o t he ti me of da y on t he web sit e. W he n t h e ti me cro ss es t h e ne xt
minute on the website, ma k e sure your LYNX crosses that minute virtually simultaneou sly.
i) If t hey ar e n ot sync hro ni zed t o wit hi n 1 s eco nd, t he n go back to st ep (2d) and r e peat st ep s (2d-
h) until your LYNX is exac tly sync hr o nize d with the time provided by the website.
http://www.wwp.greenwichmeantime.com/
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• Go to the “Calibrate Time” menu
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3. After 48 hours have passed, compare your LYNX’s time to the website once again:
a) On you r PC or M AC, go on t he int ernet a nd visit
http://www.wwp.greenwichmeantime.com/,
select your tim e zone, and make sure that the website is showing the correct tim e of day
b) On your LYNX, enter the “Ready to Dive” screen and note the time of day in the lower-left
c) Focus on the time displayed on your LYNX. When the minut e 'flips', immediately observe the
website time and record it. For example, your LYNX flips to 11:24pm, and at that exact
moment the website time shows 11:26:18pm.
d) In th i s e xa m ple, your LYNX is sl ow by 2 minutes, 18 seconds over 48 hours. We ne ed th e err or
over 24 hours, s o we divide by two, yielding 1 minute, 9 seconds slow per d a y.
4. Finally, ent er the corr ect time calibration into your LYNX
• Enter the correction +1m09s by tapping
UPWARDS to speed your LYNX clock up.
• You can also slow your LYNX do w n b y
tapping DOWNWARDs and setting a
negat i ve corr ec t ion, e. g. -1m09s.
13. Connect to PC
Tap into this menu item before starting the download of your dive logs in your PC application of
choice. R e f er t o its manu al for mor e infor mation.
If you tap into thi s ite m accid entall y, don 't worr y – th e wait for PC communicati on will time out after
30 seconds, and y ou will be ba ck t o ma i n m enu .
For mor e infor matio n on conn ecting to your PC , downloa ding y our div es or uploa ding ne w softwa re
onto your LYNX, please refer to the “
14. Locator PIN
In thi s menu , you can ent er th e Loca tor PIN nu mber you ha ve obtai ned from the Liqu ivis ion webs ite
during y ou r LYN X R e gistration proces s . Enterin g th is PIN a nd a ctivating t he Locator fea ture is t otall y
optional. Here is why:
The Locator feature allows a diver using a LYNX to obtain directional location information (an
approximate bearing) towards other divers who are usi ng a Li qu ivi si on T a nk T ra nsmi tt er or to war ds a
Location Transmitter.
Whi le we h av e mad e ev er y ef for t to ma ke t hi s a use ful f eat ur e, it s ef fecti ve ness i s hig hly in flu en ced by
the diver’s a bilit y to “w or k with th e so ftware”, i.e. to keep a LYNX, Tank or Location Tra ns m it ter a nd
bod y orienta tion t hat is fa vorable t o signa l recept ion an d accura cy. Als o, this i s the fir st time such a
feature has been introduced to the broad recreational diving market, and so it is, in its nature, very
experimental. We simply don’t know how people will want to use or mis-use it.
For t his r ea s on , t he Lo ca tor f eat ur e is an optional, free BETA upgrade to the LYNX-AI fu ncti onali ty.
The L ocato r fea ture i s pr ovid ed thr oug h an e xperi menta l so ftwa re i n BE TA r elea se. T o a ctiva te i t o n
LYNX PC Interface” section of the manual.
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your LY NX, y ou must a cknowl edge tha t you hav e read t hrough t he prope r way of u sing it, t hat you
und ersta nd it s limi tati ons, a nd tha t you accept that it is not covered by the LYNX warranty in any
way. Onc e you ha ve don e so, you will get a Locator PIN fr om th e Liqui visi on we bsit e, simila r to t he
LYNX Unlock PIN.
Ther e is absolu tely n o requir ement t o unl ock the L ocato r feat ure o f the LY NX. The LYNX will still
provi de Air I ntegra tio n functi ona lity, in clu ding th e option t o monit or your own, you r Budd y’s or you r
Group’s tank pressures, and will provide you with remaining Air Time information for your own tank.
If you choose to unlock t h e L oca tor fea tur e of t he LY N X, y ou wil l ha v e to ent er t h e Loca tor PI N you
have obtai ne d into your LYNX computer in this Locator PIN menu.
On ce you ha ve en ter ed t he corr e ct L o cat or PIN me nu , th e pr oce s s for en ter i ng t he L oca t or PIN is very
similar to the one f o r enter ing the LYNX Unlock PIN. Y ou can find step-by-step instructions here:
Ent er ing Y ou r F r e e Soft wa re Activat ion PI N , Sett i n g T ime/D a te & Ba ttery Type
Once you have unlocked the Loc a tor feature, it will ap pear in the LYN X u n de rwate r m enus. You can
lea rn more about how it works by re ading the section that descr ibes the
Locate underwater menu item.
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Whe n in Rec Mode…
(only if running simulator)
Whe n in Tec Mode…
(only if running simulator)
When in Gauge Mode…
(only if running simulator)
™
UNDERWATER MENUS
Main Und erwat er Menu
1 Switch Gas
2
LOST GAS
3
Silence Alarms
(when Alarms are on & triggered)
4
AI M o d e
Locate
5
(only if AI is turned “ON”)
6 Compass
7 Stopwatch
Reset AVG
8
Dark Mode On /Off
9
(only if “Dark Mode” is
activated in the Surface Menus)
10
Display
10.1
10.2
(only if “Auto Dim” is activated
in the Surface Menus)
Brightness
Au to Dim
10.3 Layout
Advanced
11
Stop Simulati o n
12
1
Switch Gas
LOST GAS
2
3
Silence Alarms
(when Alarms are on & triggered)
4
AI M o d e
Locate
5
(only if AI is turned “ON”)
Compass
6
Stopwatch
7
Reset AVG
8
Dark Mode On /Off
9
(only if “Dark Mode” is
activated in the Surface Menus)
10
Display
10.1
10.2
(only if “Auto Dim” is activated
in the Surface Menus)
Brightness
Au to Dim
10.3 Layout
Advanced
11
Stop Simulati o n
12
1 Switch Gas
2
LOST GAS
3
Silence Alarms
(when Alarms are on & triggered)
4
AI M o d e
Locate
5
(only if AI is turned “ON”)
Compass
6
Stopwatch
7
Reset AVG
8
Dark Mode On /Off
9
(only if “Dark Mode” is
activated in the Surface Menus)
10
Display
10.1
10.2
(only if “Auto Dim” is activated
in the Surface Menus)
Brightness
Au to Dim
10.3 Layout
Advanced
11
Stop Simulati o n
12
1. Switch Gas (only in Tec Mode)
This me nu item appears only when yo u a re in Tec mode.
In the surface menus, you ca n confi gure your ga s settings ( see
this submenu, you will see li s t o f ga s e s tha t ar e allowed for th e de pt h you’r e at. T hi s li st i s based on:
- your max PO2 settings (see
- your gas settings. A gas set in “Dive” mode will use “PO2 dive” as maximum PO2,
The ga ses wi ll be list ed from on e with th e lowest content of O2 to the one with the highest. This list
will only d isplay gases t hat are confi gured as “Dive” or “Deco” gases. If, a t the ti me you ent er this
menu, th er e is a “B est G a s” for you t o swit c h to, thi s ga s w ill be i ndi cat ed wi th a n as ter isk ( *). In t hi s
example, the computer is recomme nding a switch to 50% Nitrox:
Gases menu item). Whe n you t ap int o
Dive Setup menu i tem), and
while a gas set in “Deco” mode will use “PO2 deco” as maximum PO2
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Finally, there is an option called “Custom Gas”, with which you can configure an additional gas
und erwa ter . D oing thi s w hil e di vi ng i s ver y tr ou ble som e, s o w e hig hl y r eco mmen d t hat y ou t ak e st ep s
BEFORE the dive to a void using this option. The best thi ng i s to in put the main gases you and your
buddies are taking underw ater, so that they are ready to switch to in c ase of an emergency .
2. LOST GAS (only in T e c M o de)
This me nu item appears only when yo u a re in Tec mode.
If y ou have l ost a gas tha t was to b e u s e d l a ter for deco mpressi on, it is v er y imp ort ant t o use t his me nu
option to mark it as “Lost”. This will prevent this Lost Gas from being used in ascent schedule
plan ning. I f you fa il to do this , your a s c e nt s c h edu le wi ll be wr o ng, a s th e LYNX will assume that you
can still u se that gas. T he ga se s will be listed fro m the one wit h the highe st cont ent o f O2 t o the o ne
with the lowest.
EXAMPLE: L et ’s say you a re pla nn i n g to use Air and N x5 0 on your dive, a nd l et’s say you r d eco ti me
would be 30 minutes on Air and only 20 minutes on Nx50. If you were to lose Nx50, but not mark it as
“Lost”, then your LYNX would tell you that your total Time To Surface is 20 minutes, because it
would think that you can still use the Nx50. However, as long as you keep your LYNX set to Air
throu ghou t your de com pr essi o n, th e LYNX w ill continuou sly adjust its calcula tions, and in effe ct will
keep you decompressing for 30 minutes.
3. Silence Alarms
If an alarm is annoying you, and you are confide nt that you should c ontinue the violation that is
causing t he alarm, you c an swi tch tha t alarm off. Choosin g the “Silence Alarms” option will cause
ALL of the alarms that are on at that moment to be silen ced unti l the end of the dive .
Alarms y ou can si lenc e are:
• Depth alarm
• Time alarm
• Ascent/Descen t Rate alarm
Other alarms, i.e. deco ceiling alarm and g as-related alarms cannot be silenced.
For exa m pl e, if y ou ha ve e xce ed ed you r ma xi mum dept h an d ti me ala r m set ting s, both o f th ese a lar m s
will be on. If you choose to “Silence Alarms”, you will turn both of these alar ms off and neither of
them will be di splayed o n thi s dive an y mor e – no matter how deep you go or ho w lo ng you stay t here
for. However, if you exceed your maximum ascent rate on the same dive, it wi ll still cause an alarm.
Keep in mind that the descent and ascent rate alarms are the same alarm – if you silence the d escent
rate alarm on the way down, you will not see alarm go off if you a scend too fast on t he way up!
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Air Integrated Dive Computer User Manual
Solo Mode
Buddy Mode
Group 4 Mode
Group 9 Mode
™
WARNING
Use of the “Silence Alarms” is intend ed for except ional circumstances. Ignoring an alarm you have
chos e n t o s et m eans you ar e e xceedi ng the limits o f your dive plan and putting yo urself at a very
serious risk.
4. A I Mode
This m enu allo ws you to swit ch betwe en different Air In tegration Mo des - Off , Sol o, B u ddy, G r oup 4
and Group 9 Modes – underwater:
The Mode you choose will affect the la yout of your dive screen once you exit the Air Integration menu:
It is im porta nt to not e that whil e your s electi on will chan ge the scr een layo ut, it will onl y dis play data
fro m the t ank t ran smit ter s you have s et up in the surface “
only c onfigu r e d your o w n t ank tr a n s mi t ter (tu rned i t “ On”, configu red t he seria l number) then you will
only have information under the “You” fi eld. All other fields will show “ Off” i n blue fo nt. You can see
an example in the Group 9 picture – only your tank transmitter and the tank transmitters of the first four
stu dents have b een con figur ed a nd tur ned “On” at t he sur face , while t he ta nk tra nsmit ters of Stu dents
5-9 were left “Off”.
Also, it is im portant to not e that the “You” ta nk transmitt er, if turned “On ”, will show up in ALL the
modes (Solo, Buddy, Group 4, Group 9), but the “Buddy” tank transmitter will only show up in
“Buddy” mode. The “Buddy” tank transmitter doesn’t become “Student 1” in Group 4 or Group 9
mode, whi c h is a com mo n con fu sio n. “St u dent 1 ” i s a total ly sepa rat e setti ng . If you wa nt “St u dent 1 ”
to be t h e sa m e as “Buddy”, you can do so by setting up “Student 1” tank transmitter information to be
the same as you r B u ddy’s .
You ca n get mor e information on Air Integration in the description of the surfa ce
as well as in
Diving With Your Lynx – Air Integration Functions.
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Air I nt egr ati on” menu . F or exa mp le, i f you
Air I nt e gr a t i on menu,
Air Integrated Dive Computer User Manual
Solo Mode
Buddy Mode
Group 4 Mode
Group 9 Mode
™
5. Locate
This m enu i t em app ea r s o nly when Ai r I nt egration is tu rned “On” and th e
Loca tor Pin has been entered
in the su r fac e menus. It allows you to run th e Loca tor f eatu re, w hich i s a n o ptiona l, fre e BE TA upg r a d e
to the LY NX-AI functionality. The Locator feature is provided through an experimental software in
BETA release. While we have made every effort to make this a useful feature, its effectiveness is
highly influenced by the diver’s ability to “work with the software”, i.e. to mai ntai n a LYN X, T ank or
Location Tra nsmitt er and bo d y orien t a tion tha t is favora ble to s ig na l r e c e pt i on and accuracy. Also, this
is t he first time such a f ea ture has be en introdu c ed to th e broad re creati onal divin g ma r k et, and so i t is,
in it s nat u r e , ve r y ex pe r imental. We simpl y do n’ t know how pe op l e wil l want to us e or m i s -use it.
You can us e the L ocate featu re to locate a ny div er who i s u sing a T1 or U-2 Tank Transmitter, and
whos e tran smitt er you have s et up f or air a nd locat ion m onit orin g in the surfac e menu s. You can al so
use the Loc ate feature to locate an L1 Location Transmitter.
The Loca t e f ea t ure is sep a r a te fro m t he Air I ntegra t i on featu re. For exampl e , y ou ma y want t o u s e S olo
Mod e or Bu ddy Mo de for Air I ntegr ation , to b enefi t fro m the la rger dive i nforma tio n scr een, bu t you
may want to se t up your L yn x to moni tor 6 T rans mit ter s i n tot al – y ou rs, y ou r bu dd y’s, those of three
other di vers ( call ed Tom , Bob a nd St an) a nd a Locatio n trans mitter (called Boat 4) – and all of these
would show up in the Locator list. Here is what this looks like:
Air Integration Display Modes vs. Locator Lists
As you can see, the Solo mode display provides much larger dive information than Group 4 or Group 9,
while still allowing you to see the Tom, Bob and Stan, as well as the Boat in the Locator list.
Buddy mode allows you to retain the big dive display AND see your Buddy’s air. When you ent er the
Loca tor list, you see your Buddy, the thr e e othe r divers and, if you scr oll down , the Boat.
Group 4 and Group 9 put your dive information at the top of the screen, a nd allows you to view Tom,
Bob, a nd S tan’ s pr essur e, a s well a s th e Boa t’ s “SigO K” duri ng you r div e, an d you can a cce ss all of
the se in you r Locator l i st.
NOTE: your Buddy ONLY shows up in Buddy mode.
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Your dive information is in the top ¼ of the screen.
The locator information is the bottom ¾ of the screen. The white cone gives
STOP LOCATOR: t urns the loca tor off and returns you t o your dive screen.
COMPASS: switches to the compass
Your dive data is displayed in the top ¼ of the scr een.
™
Once you select whom or what you wa nt to l ocate, you w i ll see this type of locator screen:
you the approximate direction to swim in to locate your Buddy. On the right
hand side, the LYNX tells you the “best guess ” bearing – about 330° NW. It
also gives you a distance estimate to your Buddy – between 0-250m - and
your B u d dy’s tank pressu r e – 700 PSI.
To ge t useful da t a fr o m the l oca tor s cr een, you must turn your arm so the LYNX is held level. If that is
unco mfor table , you can r emov e the L ynx from your arm e ntirel y a nd hol d it i n you r han d in front o f
you. You can get more complete i nformation on how to use and interpr et th e di rectiona l loca tor s creen
Diving With Your LYNX - Locator Functions section of the manual.
in the
If yo u tap your LYNX three time s w hile in the locator screen, this will pull up the fol lowing options:
FREEZE LOCATOR: prevents the locator from getting any more data
packet s fr om the t r a n smitte r, and keeps the direction cone oriented towards
the s o u r c e of the last re c eived pack et. Read how you would use th is below.
CLEAR LOCATOR: clears any data received by th e lo cato r so far, allowing
you to start the location process anew.
LOCATE OTHER: allows you to locate a different diver
Uses of the Freeze Feature: The locator feature only works well if the LYNX is h eld level on your
arm in front of you. If you are working underwater, taking pictures, for exa mple, you may want to
locate your buddy with your arm held level , then you may need to move your arm to take your picture.
The da ta pa ck ets you get with you arm h el d s t ead y wil l be high qualit y an d you will want to “free ze”
the m, so that you d on’t dilu te them wit h poor qu al ity da ta pa ck et s t hat you wil l r ec eiv e w he n you ar e
moving your arm around.
6. Compass
This menu item allows you to acc ess the compa ss u nd erwat er ONLY if you have prop erly cali brated
the compass in t h e surface
Compass menu.
The compass information is displayed in the bottom ¾ of the screen.
It includes a comp ass di al, a bearing in degrees ( here: 345°) and a bearing in
words (here: N for North).
To exit the compass view, tap your LYNX three/five times on the top and you will return to the
underwater men u. You will have the option there to “Stop Compass” and return to your dive screen.
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STANDARD
SIMPLE
ALTERNATE
LARGE
™
7. Stopwatch (only in Gauge Mode)
This me nu item appears only when yo u a re in Gauge mode.
The “Stopwatch” is a timer that you can turn on and off, start, pause, and restart during your dive. Here
is how it appears in each of the four scr ee n l a youts:
If the Stopwatch is “Off”, your LYNX’ s u n der wa t er menu h a s an item called “Stopwatch On”. If you
sele ct thi s ite m by tap pin g eith er si de of your LYNX unit, you w ill activate th e Stop wa t ch function a nd
you will see your dive display rearrange itself – it will show the Stopwatch in addition to the
information it was previously displaying.
Whe n the Sto pwatch functi on is “On” and you r eturn t o the unde rwater menu s, you will s ee a menu
item called “Stopwatch”, and this takes you to t he submenus that control the use of the stopwat ch.
Stopwatch Shortcut: if the St opwat ch is “O n”, th en by tap ping thr ee/fi ve time s on a SID E (not t he
top) of your LYNX, you will be take n directly to the st opwa t ch su b-menu:
Stop / Start
-
: de pending on whet her the St opwat ch is run ning or pa used at the mo ment,
this will eith er say “St op” or “Start”. Choo sing “Stop” will pau se the stopwatch if it is
runni ng, a nd “ Star t” wi ll r e-start the stopwatch, if it is paused. Initially, when you turn
the St opwatc h on for th e first tim e dur i ng your dive, it i s paused .
-
Reset
: this will set your Stopwatch count to 0. If t he Stopwatch is runni ng, it will keep
running – n ow , counting again from 0.
-
: this will pause the Stopwa tch an d turn i t off. T he di ve displ ay will retur n back to
Off
norma l. If you tu rn your sto pwatch back on lat er, it will ha ve same c ount as w hen you
turned it off.
Bear in mind, that to make it easier for you to operate the stopwatch, the items in the stopwatch
submenu change order :
- If the stopwatch is running, first item is "Reset", and second item is "Stop".
- If the stopwatch is not running, first item is "Start", and second item is "Start".
8. Reset AVG (only in Gauge Mode)
This option is only available in Gauge Mode.
It will reset the average depth that has been calculated from the beginning of the dive, and it starts
calculating it from this point onwards. Keep in mind, however, that the average depth in your di ve log
will be average depth over the whole dive .
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STANDARD
SIMPLE
ALTERNATE
LARGE
™
9. Dark Mode On/Off (only in Gauge Mode & only if Dark Mode is activated in the Surface Menus)
This op t ion is only a va il able in Gau ge Mode. Thi s und erwa ter opti on tur n s on or of f the low bri gh tne ss
color s chem e you hav e pr e-sel ect ed du ri ng y our sur fa ce div e pr e par at io n ( pl ea se see th e “
section for mo re information).
Dark Mode”
Once you turn Dark Mode “On”, depending on the color scheme you selected on the surface, your
screen will eith er go blank, or will show all data in dim re d or dim gr een. To exit Dar k Mod e, tap th e
unit three or five times. T his will take you into t he underwat er menu that will allow you t o turn Dark
Mode “Off”.
10. Display
You can adju st a limite d set of display feature s under wat er.
10.1. Brightness
The “ Br ightn e s s” setting has tw o l e v els – Normal and Low (default is Normal). In clear, shallow water,
with lots of sunlight, you will need normal br ightness to see the display properly. In deeper, dark er
water, select low brightness to save battery power. Keep in mind that hi gher brightness burns more
batt ery, so you s h ou l d se l ec t th e l o w e st bright ness tha t m ee t s you r n e ed s on a gi v en dive.
10.2. A u to Dim (only if Auto Dim Mode is activated in the Surface Menus)
This underwater o pt ion tu rns on or off the Auto Dim feature you have pre-selected during your surface
dive preparation (please see t he “
Di spla y Setti n g s - Auto Dim” section for more information).
You can us e the “ Auto D im” fea tur e to fin e-tune the brightness of your display. If you need normal
brightness on the surface and lower brightness at depth, you do not need to adjust it manually. Instead,
you can set your “ Auto Dim” setti ng to the depth at which you want your display brightness to be
reduced to “Low”. By usi ng the “Auto Dim” feature, here’s what will happen:
● At the surface, display brightness will be at the setting chosen in the “Brightness” menu
● Once you re a ch your A uto Dim depth, and below , the brightness wil l switch to “Low”
● Between these two, the bri ghtne ss will decrease lin earl y wit h depth (e.g. , at half o f the Auto
Dim depth, it w il l be halfway between the s urface brightness se tting, and “Low ” )
If you set your Brightness setting to “Low”, the Auto D im feature will have no effect .
The default Auto Dim setting is “Off”. You can adjust it in 10m / 30ft increments.
10.3 Layout
(only affects Gauge Mode)
In Ga uge Mode your LYNX comes with a three underwater display layouts to ch oos e f rom and you ca n
select your preferred layout in this menu item.
In Rec a nd T ec mod e, th e LYN X di spl a y vari e s depe ndi ng o n wh eth er Air Int egra ti on i s “O ff” or , if it
is “On” , whether you are in “Solo”, “Buddy”, “Group 4” or “Group 9” mode. You can change this
setting in the
Air Integration surface menu:
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Diving within NDL Limit Deco Diving
Off
Solo
Buddy
Group 4
Group 9
11. Ad vance d
The Advanced underwater menus include various troubleshooting tools such as the Packet Test,
Graphic Test and Phase Test. You should only enter these menus on the specific instructions of
Liquivision Customer Support.
12. Stop Simulation
This option is displayed only if you are “under water” in a simulated dive (to learn more about dive
simul atio n, pl ease r efer t o the “
will immedia tely s top simulation , and return back to the surface me nus.
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Simulate Dive” section of the manual). In such a case, choosing this
Air Integrated Dive Computer User Manual
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DIVING WITH YOUR LYNX IN RE C MODE
Overview
Your LYNX has a wi d e se t o f f ea tures t ha t can ass ist you w i th your dive plannin g a nd pre pa r a tion. The
mo st basi c s electi o n is t he Mode you wish t o use your u ni t in. The default is Re c Mode, and this is the
Mode we will describe in this section.
In R ec mo d e, th e LYNX funct ions as a one-gas computer. The default m ix is A ir. You can s et a ny mix
from 21%-40% oxygen, including common mix e s s uc h as A ir ( 21%), 32% nitr ox or 36% nitrox.
The Liqui vision R e creati onal Diving M o d el in Rec Mode ha s been ca refull y tuned to maxi mi ze bot to m
time on both the first dive of the day and on repetitive dives while maintaining diver safety.
DCS risk is carefully managed and in the same ranges as most popular dive tables in use today.
Gradient factors control the overall no decompression time and reduction factors are applied during
surface intervals to increase safety.
In this mode, the LYNX’s primary function is to provide you with your No Decompression Limit
(NDL), i.e., the amount of time you can spend diving without incurring any decompression. If you
complete you r dive within t h e NDL p eriod, t he LYNX will prom pt you t o co mple te a
Saf ety Sto p
for 3
minutes at 5m / 15ft. If, at any t ime during these 3 minutes, you drop below 6.5m / 21ft, the sa fety stop
counter will turn off and reset. It will begin a gain once you return to the safet y stop depth of 5m / 15ft.
Should you continue diving beyond your NDL time – and you should only do this if you have
knowle dg e o f de c o m pr e ss ion divi ng an d s u f f icient gas to complete the dive safely - the LYNX will
start calculating your decompression obligation and indicate the depth and duration of any
deco mpress ion stops you ne ed to com plete t o exit the water sa fely. Th e unit calcula tes your NDL or
1
your d eco plan u sing a cu stom mo del bas ed on the pr oven Bü hlmann Z H-L16C
model. This model
gener ally align s with the PADI tables.
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If you have a T1 or U-2 Tank Tra nsmitter set up o n your ta nk, an d you have tur ned th e LYNX Air
Integration f eature “O n”, you will be a ble to tra ck your tank pres sure in PSI/BAR and o btain an A ir
Time value. The Air Time value appears 4 minutes into the dive, and estimates how much dive time
you ha v e left based o n y our brea thin g r a te and current d epth. It will rea c h zer o o n ce your ta nk pr e s su r e
hits 700 PSI/48 BAR. This is nor mal ly su f fici ent t o a sc end fro m a n o de com pres sio n d ive r e crea ti onal
divi ng d epth whil e res pecti ng pr oper asce nt ra tes a nd a 3 minu te Safet y St op at 6 ft/1.5 m, but it will
likely not be sufficient gas to complete a decompression schedule. The Air Time feature is not
compatible with decompression diving! You must make your own gas calculations if you are
plan ning a de c o mpr e ss io n dive.
WARNING
In a No Decompression Dive, your remain in g Air Time takes preceden c e over remain in g N DL tim e.
If your Air Time is less than your No Decompression (NDL) time, always follow the Air Time value. Start
your n o decom pr e s s io n a s c ent before or im me di a tely wh en Air Ti m e reaches zero (700 P SI /48 BA R).
WARNING
NEVER un de r g o a de c o mpress io n di v e wit ho ut pr o pe r tra ining.
NEVER exceed the LYNX No Decompression Limit unless you are trai ned in decompression diving.
WARNING
The Air Time f eature is N OT des igned for use with decompression diving.
700 PSI/48 B AR will likely not be enough gas to complete your decompression schedule!
You must make your own gas calculations if you are planning a decompression dive, and you must plan to
have sufficient gas to co mp l ete your d e co mpre s sion sa f ely .
WARNING
Electron ics Can Fail – Always Carry Backup
Th e L Y NX dive computer hardware and the Tank and Locatio n Transmitter hard ware will eventua lly fail,
like any electronic equipment whose components mature and age. If t hey fail during your dive, they can stop
providin g you w i t h cr itical de c ompre s si o n an d t a nk pressu r e in f ormat ion.
You mu s t ha v e a plan to han dle the failure of the LYNX dive computer, the T a nk or Location Transmitter
during your di ve. You must always carry backup instruments, including a depth gauge , submersible pressure
gauge, digit a l bottom timer or dive watch, a compass, and have access to decompression tables. Do not risk
your life on onl y one source of information.
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WARNING
Alw ays Check For Software Upda tes .
The L Y NX dive computer software likely still has bugs. We have looked for them and tried to eliminate
them, but they can still appear during use. Bugs can cause the unit to provide inaccurate or incomplete
information, or ca u s e the unit t o re s et or turn of f an d stop providing any inf ormation at all.
You should always check for software updates
(www.liquivision.com/downloads/LYNXSoftwareHistory.php) and inst a ll all appl icable updates, every time
yo u prepare to use the LYNX dive computer.
Setting Up a Dive In Rec Mode
Once you have
Unlocked your LYNX, and set up the required Time/Date and Battery information,
setting up your first dive in R e c mode i s v ery simple. All you need to do is:
1. Set up Metric/Imperial Units. Go to the “
Preferences > Units” menu item and make your s elect i o n .
2. Set up your dive gas. The de fault i s “Air ”. You can cha nge i t to an y nitr ox mix from A ir (2 1%) to
40% ox ygen by f ollowing the ins tructi ons in th e “
Dive Planning > Gases” section of this manual.
3. Compute your No Decompress ion Limit (NDL) times. Entering the “
Dive Planning > Compute NDL”
menu item will crea te a cha r t with t he amou nt o f time you can sp en d a t a given de pth wit hout in cu r r i ng
any decompression. For example, if you select “Air” as your dive gas, your NDL at 15 m (about 45 ft)
will be 57 minutes. This can help you plan the amount of gas you take on your dive.
4. Set up your A larms by accessin g “
Dive Planning > Alarms”. The default settings are:
- Alarms “On”
- Depth: 30 metres (100 feet)
- Time: 60 minutes
- As ce nt Rat e: 10 metres p er minute (30 feet per minut e )
- De sc ent Ra te: 30 metr e s per min u t e (9 0 feet per minu te)
5. Set up Air Integrati on features. Read the
Air Integration surface menu s e ctio n o f this manua l.
6. Cal ibrate Your Compass. This is d esc ribed in the
Compass sect io n of this manu al.
7. If you want to use the Locator feature, unlock it. The Directional Location feature can help you
locate a T1/U-2 Tank Tr a ns mi tter or L 1 Loca t ion Tr ansmitt er underwat er, as long as the Transmitter in
question is within range. This feature is an optiona l , free BETA upgr ade to t he L YNX -AI functi onalit y.
The Locator feature is provided through an experimental, BETA release, and requires that you
acknowledge that you understand its limitations before you can obtain a free PIN to unlock it.
Instr uctions on ho w to unlock it can be fou nd
manual. Inst ructions on how to use it can be found in the description of the underwat er
and th e
Diving Wit h You r LYNX - Locator Functions section of the manual.
Unl ock The Locator Feature of The LYNX se ct io n of this
Locate menu
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8. Run a Surface Div e Sim ulatio n. T hi s fea tu re, fou nd i n “Dive Planning > Simulation” allows you to
create a dive si mulat ion f or a d es i red depth and time, at up to 4x normal speed. This lets you:
- Double-ch eck a ll you r di ve set ting s (e.g . to ca tch t hat you ha ve a depth ala rm set t o 30 m /
100 ft while you plan to dive to 40 m / 130 f t).
- Pre-v iew the di ve scre en
Layout, and familiarize yourself with the location of key pieces of
information.
- Practice accessing the
Und erwat er M e nus, and fa milia ri ze y our sel f wit h the opt ion s ava ila bl e
to you there.
9. Exit all menus, then select “Shut Off – you are now ready to dive! At the bottom of each menu
screen there is the option to “Exit”. Keep selecting t his until you r each the main menu, then select
“Sh ut Off” at the very to p of the main me nu. Your unit wil l go blank. You are now re ady to d ive!
Settings That Will Affect Your Dive
Conservatism Setti ngs
The conservatism setting of your LYNX will affect the length of your No Decompression Limit
(NDL); the more conserva tive the sett ing, the shorter your NDL time. In Rec mode, your LYNX is
automatical ly s et to ru n o n a mor e conservative setting and, for your safety, this cannot be changed in
1
Rec mode. Rec Mode uses a custom model based on the proven Bühlmann ZH -L16C
model. This
model generally aligns with the PADI tables.
Safet y St o p
You s hou ld a lwa y s div e wit hi n t he No D e compres sion L i mit (N D L), u nl ess y ou ha v e sp eci fic t rai ni ng
in de compr essi on div ing. Y ou shou ld al ways b egin your as cent FI RST based on ha vi ng su ffici ent ga s
rema i ni n g a nd, if you do have sufficient gas remaining , TH EN based o n staying withi n t h e ND L .
Whe n you a scen d withi n th e NDL li mit, you will b e asked to complete a safety stop for 3 minutes at
5m / 15ft. If, at any time during these 3 minutes, you drop below 6.5m / 21ft, the safety stop c ounter
will turn off a nd reset. It will begin again once you return to the safety st op depth of 5m / 15ft.
Oxygen Loading (for enriche d ai r/nitrox di ve s)
If y ou a re di ving wit h enri ched a i r/nitr o x, your LYNX calculates your CNS
(Central Nervous System) and OTU (Oxygen Toxicity Unit) loading. Your
current CNS/OTU levels are easy to access through the
Your Saturation
menu i t em and the s creen l ooks like t hi s.
For a full explanation of CNS/OUT values, please refer to your nitrox
trai ni ng manua l .
Enteri ng the water
Turning Your LYNX On
We recommend that you turn your LYNX on you rsel f before you ent er the water to ch e ck the
remaining battery power and to make sure that all is functioning pr operly. Y ou can turn it on by
tapping the unit in the Down direction 3/5 times.
Otherwise, i t will t urn on autom atic ally few seconds after you t ake it deepe r th an 1.6 met e rs / 5.25 feet.
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Beginning Your Dive
When you start to descend and go below 1.6 meters / 5. 25 feet , your LYNX will turn into dive mode.
Dive Display
There are two main types of underwater display layouts depending on the type of Air Integration
display mode you have chosen: Off/Solo/Buddy and Group 4/Group 9. To see detailed differences
bet w ee n th ese lay outs, pl ease see the
Layout section of the ma nual.
Dive Time
Dive time is measured in minutes and seconds, starting from the moment your LYNX reaches 1.6
meters / 5.25 feet. It will stop once you surface, and it will reset once you have been on the sur face for
more than t he
Minimum Surface Interval.
- In Off/Solo/Buddy Modes, the D ive Time is shown in yellow in t he upper right hand screen corner.
- In Group 4/Group 9 modes, the Dive Time is sho w n i n y ellow in the t op /cent er s creen corner.
Off/Solo/Buddy Group 4/Group 9 Mode
The mi nu tes of you r dive ca n be displayed as fol lows (refer to the “
Show Hours” sectio n for d etail s) :
• minutes: s econd s , e.g. 135:00
• hours:minutes:seconds, e .g. 2:15:00
Depth
You can set the unit s in which your Dept h is displayed. If you chose metric units, you will see the
dept h in met ers, wit h one d ecima l place in small er fon t. I f you ch ose imp erial u nits, y ou wil l see the
depth i n feet, wit h no decima l places . P lea se r efer t o t he “
Units” section of the manual for details on
choosing units.
- In Off/Solo/Buddy Modes, the Depth is shown in green in the bottom right of the screen.
- In Group 4/Group 9 modes, the Depth is shown in green in the top left of the screen.
Off/Solo/Buddy Mode Group 4/Group 9 Mode
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Air Integration
If you turn the Air Integration feature “On” and have a Tank Transmitter on your own tank, your
Budd y’s tank , or ta nks of your Group members , you will s ee air informati on on your dive scre en .
- When Air Integration is off, there is NO tank information displayed.
- In Solo Mode, your tank information is shown as a graphical tank icon on the middle left side of the
screen, wit h a PSI/BAR tank pre ssure value b el o w it, as well as your ta nk transmitter battery icon . T h e
tank and pressure values can be green, yellow, orange or red, depending on the amount of pressure left
in the ta nk. You can set the tank pressure values at which the colors cha nge in the
Air Integration-
Transmitter surfa c e menu. You can set th e pressure units in the Air Integration – Units surface me nu.
- In Buddy Mode, y our ta nk informati on is shown i n th e sam e way as in So lo m ode, but y our B u ddy’s
name and tank pressure appears on the top left of the screen, in PSI/BAR only (no graphical tank
dis play) . Y our B ud dy’ s ta nk t ran smit ter ba t ter y ico n is sho wn im me diat el y ben eat h th e pre ssu re value.
Your Buddy’s actual name can be set up in the
Air Integration-Transmitter surface menu. Your
Budd y’ s ta nk pres sure i nforma tion w ill change color ba sed o n t he a mou nt o f pre ssur e r e mai ning . Y ou
can s et the tank pre ssure valu es at whic h the color s cha nge i n the
Air I nte grati on-Transmitter surface
menu and your Buddy’s settings can be different than your own. However, all pressures must be
dis pla y ed in the same pressure units as you choose for your own tank.
- In Group 4/Group 9 modes, your tank information is shown at the top r ight of the screen, in PS I/ BAR
only , wit h y our batt er y i con i mm edia te ly b el ow tha t. T he r est o f the scr een is tak en u p by t h e Grou p’ s
pressur e values. In the screenshot below, the four divers are named “Stu 1” for “Student 1”, “Stu 2” for
“Stu den t 2 ” a nd so on. You can c han g e the nam es t o the students’ actual names in the
Air I nte gra ti onTransmitter surface menu. Since students change frequently, it may be a hassle to update the names
each time. Instead, some dive masters have suggested using color coding – for e xam pl e, na mi n g thr ee
transmitters “Red”, “Blue, “Green” and putting them on three tanks marked with red, blue and green
tap e, a n d then giving the stu dents a color c ode usi ng a bandana or a piece of tap e o n their w et su i t . T ha t
way you can make sure the right transmitter is on the right tank a nd you can recognize the right student.
Her e are th e va r ious wa ys that air pressure is displayed:
Off Solo Mod e Buddy Mode Grou p 4/Group 9 Mode
Air Time
If y ou have a Tank Transmi tter s et up on your tank, you have turned the LYNX
“On”, and you are in Solo or Bu d d y m ode, you will be able to track your tank pressure in PSI/BAR and
obtain an Air Time value on your screen. The Air Time information is NOT available in Group
4/Group 9 modes.
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Air Inte gr a tion feature
Air Integrated Dive Computer User Manual
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For the first 4 minutes of the dive, no Air Time information will be displayed. Instead, you will see
three bars “---“ on your display. This is because BC inflation from your dive tank and rapid
temperature changes on descent can cr eate dist ortions in the ea r ly Air Time readings.
On ce 4 mi nu t es ha v e elap sed, t h e Air Time valu e will ap pear. It i s an esti mate of ho w much div e time
you have left based on your breathing rate and current depth. The LYNX estimates your Air Time
value by measuring how long it took you to breathe the last 100 PSI/7 BAR. However , it updates your
Air Ti m e in s t a ntaneously w h en your dept h chang es.
The Air T ime r eadin g will reach zero once your tank pressure hits 700 PSI/48 BAR. This normally
sufficient to ascend from a no decompression dive recreat ional diving depth while respecting proper
ascent rates and a 3 minute Saf e ty Stop at 6 ft/ 1.5m, but it will like ly not be suff icien t gas to comple te a
deco mpre ssio n schedu le. The Air Time feature is not compatible with decompression diving! You
must make your own gas calculations if you are planning a decompressi on dive.
Also, the Air Time feature is an estimate – do n’ t t r ust it bli ndly – favor your raw LYNX pressure
value and your analog pressure gauge reading! Whil e we did our best to mak e sure Air Time is
accu ra te, i t i s a le s s rel ia bl e va lu e t ha n the LY N X ta nk pr e ssu re in for ma ti on di spla ye d – th is is si mpl y
because the LYNX tank pressure is the primary data point from which the Air Time calculation is
made . If t he two va l u e s se e m t o i n dicat e di f f er e nt thing s , tr u st the ta nk pres sure valu e first. Similarly, if
the tank pressure the LYNX is displaying does seem to make sense, always refer to your analog
pre ssure ga uge! T rust t he a nalog pre ssure gau ge over th e LYN X! Th e reas on for t his i s also simpl e –
you could ha v e mixed up t ank tr a n s mit t ers whi l e setting them up at the surface. If you are a 200 lb man
and your Buddy is your 120 lb wife, and you mistakenly put your transmitter on her tank (and vice
versa), y our LYN X pres sure valu e would be mu ch higher tha n it shoul d b e (and hers would be much
lower than it should) . In this situation, your analog pr essure gauge is physically connected to your tank
and i s th e m ore reliable source o f in format i o n.
Here are the ways that Air Time is displayed in Solo and Buddy modes:
Solo Mod e Solo Mod e with Deco Buddy Mode Buddy Mode - Deco
Ai r Time is NO T available in Group 4 or Group 9 modes, or whe n Air Integrat ion is “Off”.
WARNING
In a No Decompress ion Dive, you r remai ning Ai r Time t akes precedence over rem aining NDL time
If your Air Time is less than your No Decompression (NDL) time, always follow the Air Time value. Start
your no decompression a scent before or immediatel y when Air Time reaches zero (700 PSI/48 B AR).
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Air Integrated Dive Computer User Manual
Air Time: you have 31 minutes
TTS: Sin c e you ha v e no
TTS is simply the time it would take
ascen t rates and s afety stops
Max Depth: This is the
™
WARNING
The Air Time f eature is N OT des igned for use with decompression diving.
700 PSI/48 B AR will likely not be enough gas to complete your decompression schedule!
You must make your own gas calculations if you are planning a decompression dive, and you must plan to
have sufficient gas to co mp l ete your d e co mpre s si on sa f e ly .
WARNING
Air Time Is An Estimate! Don’t Trust It Blindly!
Whe n in doubt, trust th e LY NX pre s sur e value over the Air Time e stimate. If in dou b t o f th e LY NX pres su re
value, trust your analog submersible pressure gauge (SPG).
TTS (Total Time to Surfa ce) and Max Depth Display
If you tur ne d the “
Show TTS” or “Show MAX” feat ure s on in the sur fa ce Display S etting s menu, y ou
will see these values displayed on your screen, alternating with the “Air Time” value, every four
seconds. If you turn both on, they will alternate as follows: Air Time – TTS – Air Tim e – Max – Air
Time – TTS and so on, so you see your Air Time value every four seconds.
Air Time TTS Max Depth
of Air Time remaining
decompression requirement, your
to ascend saf el y w hile res p e cting
maximum de pth you ha v e
reac h e d on t his dive
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Group 4/Group 9 Mode
Planned Deco:
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Decompressio n Inform ation Zone
- In O ff/Sol o/Buddy Mo des, th e NDL (N o Decompre ssion Li mit) or the dec ompres sion i nforma tion
are sho wn in the center of the screen.
- I n Group 4/Group 9 modes, the NDL or the decompression information are shown at the top-center
of the screen.
Off/Solo/Buddy Mode
No Deco:
Earl y in the dive, the NDL v a lue is very lar ge
and shown as “---“. Once it is less than one hour ,
the NDL value i s shown in minutes.
Once you run out of NDL time , your LYNX will
show the deepe s t pl a n ned dec o st op dept h. In
Off/Solo/Buddy modes, the “hand” symbol…..
means “Stop”. In this case, your stop is at 3
met ers or 10 f eet
During Deco:
When you reach your deco stop, your LYNX
will show your Stop Depth (6m) and your Stop
Time (4 mins 30 sec)
• NDL – No Decompression Limit is the maximum time you can stay at your current depth
• St op Dept h Onl y – This value appears once you run out of NDL time. It is the depth of the
• Stop Depth/Time – These values will appear together once you reach your first/deepest
Grap hical Decompre s s ion Stop Information
In cert ain m ode s, the LYNX provides you with graphical cues to help you execute your decompression
plan correctly. In REC Mo de, they appea r when Air Integration is “Off” or in So l o m o de. Th e y a r e n ot
avail able in Buddy, Group 4 or Group 9 modes, as the space is taken up by Air Integration informa tion.
The following screenshots show the graphical decompression symbols in REC Mode with Air
Integration “On”. The large “Up” arrow appears when you need to ascend to your next stop. The small
before you will incur a de co m pres si on o bligation. I t is di s played i n minutes, and rounded down
to the n ea rest minu te. Y ou s hou ld NE VER exce ed this ti m e, u nless y ou ha v e s p e cific tra ining in
decompre ss i o n diving .
deepest stop on your LYNX’s ascent schedule if you were to begin your ascent immediately.
decompression stop. The stop time is in minutes:seconds. If you are shallower than this stop, the
dept h va lue will bli nk t o r e mi nd you to g o d ee p er .
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1. Large Up Arrow
2. Small Up Arrows &
start of Starfish
3. Ho ld St arf ish in box!
4. Small Down Arrows
& Stop A l arm
1. Descent Rate
2. Descent R at e A la rm
3. Ascent Rate
4. As cent Rat e A larm
Your LYNX offers a visu al in dicator of Central Nervous System (CNS)
Your LYN X offers a visual indica tor of Nitrogen (N2) loading. During the
ogen that you must release through
adequate training and sufficient gas reserves to execute a
™
“Up” arrows and starfish show that you are arriving close to your next stop. Once the starfi sh shows
fully in the box on your screen, it means you have reached your decompression stop depth. If you
overshoot your decompression stop, i.e. ascend farther than you should, you will see small down
arrows telling you to descend, and the decompress ion stop alarm will b e activated (flashing d epth) .
Graphical Ascent/Descent Indicators & Alarms
The LYNX pr ovid es y ou wit h a nu mb er of grap hi cal cu es to help you mana ge you r d es cent and a sce nt
rates , based on the
Alarms you have set up.
CNS Loading
oxy gen l oa di ng w he n Air I nt e grat ion i s “O ff” onl y. W he n
Air I nt egra ti on
in “O n” , t he C N S tr ack er i s not vi si bl e. H o wev er , th e CN S i n for mat i on i s
being recorded and can be reviewed after your dive in the
Di ve Log.
N2 Loading
NDL (No Deco Limit) period, the N2 indicator will be green. As you
exceed your NDL, the N2 indicator will add yellow and red bars. This
means you have excess nitr
decompression. You should not enter decompression unless you have
deco mpr e ss ion plan!
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When AI is “ Off” or i n “Sol o”
or “Buddy” mode, your
To check your gas when
diving in Group modes,
AI Off
Solo/Buddy Mode
Group 4/9 Mode
AI Off
Solo/Buddy
The gas ala r m will b e displayed in the lower left
corner of the screen, and it will blink when the ga s
The PO2 alar m w ill be displa yed in the lower l eft
corner of the screen, and it will flash when you
PO2 setting is 1.4 in Rec
The CNS alarm will be displayed if you have
. For more information
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Gas
current gas is shown on the
bottom l eft of the screen. Your
current gas is NOT shown in
Group 4 or Group 9 modes.
brief ly switch to S olo mode.
Gas/PO2/CNS
NOTE: None of these alar ms a r e avai la bl e in G r oup 4 or Gr ou p 9 Air I nt egr ati on mo des. To v ie w ga s
and gas alarm information while diving in a Group mode, please momentarily switch to Solo mode, and
then s wit ch back to Grou p m od e.
you ar e breat hi ng is not ap propria te for some
reason. The most common reason will be t hat you
have exceeded the maximum allowable PO2 for
yo ur gas (PO2 is 1.4 in one-gas Rec mode)
exc e ed the maxi mum a llowabl e PO2 given the gas
you are breathing. The
Mode.
exceeded your CNS limit
on this alarm, please refer to the Ox ygen loadin g
section of the manual .
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The current temperature of the surrounding environment is displayed i n the
letter next to the temperature value to let you know which
AI Off
Solo/Buddy Mode
Group 4/9 Mode
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Temperature
lower-left-hand corner, n ext to the ba t t ery indicat or.
It i s dis play ed eit her i n Ce lsiu s or i n Fa hren heit, dep endi ng on your Unit s
setting (r efer to th e “
Units” se ction of the manua l for d etail s). You wi ll see
a “C” or “F”
units you ha ve se lected.
Keep in mi n d t ha t the temp er a t u re se n s o r is in side the LYNX unit, so it ca n ta k e many mi nu t e s for it t o
adjust to a rapid extern al tem perature change.
The LYNX will function when its internal temperature is between - 0 to 40°C (32 to 104°F). If the
LYNX’s internal temperature exceeds 40°C/104°F (i n dir ect su nlight , for e xampl e) the OLED di spla y
coul d sho w some visua l distu rba nce s. This i s not a p rodu ct fai lure – the di spla y will retur n to n ormal
when the unit is cooled down .
Batt er y I n dicat or – LYNX
The ba tt ery s tat us i s repr e sent ed gra p hi call y wi th a ba tt er y ico n. The bat te r y ico n star ts out gree n, t hen
it turns yell ow and then red. Lit hium batter ies have a very st eep dro p-off v oltage cu rve, w hich mea ns
they a ppear full until the very last moment, w he n they quickly deplete. The refore, the battery only turns
yellow wit h a bout 1-1.5 hours of life left in the battery.
- I f th e batt ery ico n is yellow on the surface, you should change your battery before beginning
your n e xt dive.
- If the battery icon is yellow un derwater, you have en ou gh batt ery life to co m plete you r di ve.
- If the battery icon is red on th e surfa ce, you MUS T change your batte ry immediately.
- If the battery icon turns red dur ing your div e, y ou sh ould sto p y our di v e a nd be gin you r ascent
imm e dia tely, w hile following ascent protocols (respect ascent speed, respect the Safety Stop).
Whe n Air Int egrat ion i s “Off” or you ar e in Solo /Bud dy m ode, you r LYN X batt ery in dicator is in the
low er left c or n er o f y ou r sc r e e n. In Group 4 a nd G roup 9 mo d es, your LY NX ba ttery in dicat or i s in the
top left of the screen.
WARNING
You must change your battery immediately when the indicato r turns red
Lithium bat teries sustain high power for a long time, but once the power starts to drop, it does so very
fast. A r e d ba ttery indica tor means that the battery p ower wil l drop to i n sufficient po wer within a few
minutes.
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Solo/Buddy Mode
Group 4/9 Mode
Your transmitter
Your Buddy’s
transmitter battery icon
Your transmitter
Your Students’
transmitter battery icons
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Batt er y I n dicat ors – Transmitter(s)
Transmitter battery information will only appear when Air Integration is “On”.
The ba tt ery s tat us i s repr e sent ed gra p hi call y wi th a ba tt er y ico n. The bat te r y ico n star ts out gree n, t hen
it turns yell ow and then red. Lit hium batter ies have a ver y st eep dro p-of f vol tage cu rve, whi ch mean s
they a ppear full until the very last moment, w he n they quickly deplete. The refore, the battery only turns
yellow wit h a bout 1-1.5 hours of life left in the battery.
- I f th e batt ery ico n is yello w on the surface, you should change your bat tery before beginning
your n e xt dive.
- If the battery icon is yellow un derwater, you have en ou gh batt ery life to co m plete you r di ve.
- If the battery icon is red on th e surfa ce, you MUS T change your batte ry immediately.
- I f t h e bat ter y ic on t urn s re d dur ing your div e, y ou s hou ld sto p you r di v e a nd be gin your a sce nt
immediately, while still following proper ascent protocols (proper ascent speed, respect the
Safety Sto p) .
battery icon
battery icon
The battery life is significantly affected by the Air Integration mode you select and the brightness
sett ing o f you r di spla y. Learn more about your LYNX’ s batt er y in t he se cti on “
Overview of Lynx, T1,
U-2 and L1 B a tt ery Types”.
“Battery Savings” mode
In the event that y our ba tter y is very low during the dive, your LYNX wil l go int o “Battery Savings”
mode. It is a mode that tries to preserve the battery as much as possible, so that the LYNX keeps
functioning as long as possib le. This mode changes the following things:
• all the information on the display will turn green (the color that is most power-economical)
• the displ a y br ig htne s s wi ll be set to low
For mor e det ail s, p leas e re fer t o
Batt ery Savin gs Mode: When You r Battery V oltage Dro ps Belo w A
Critical Lev el
Exiting the water
Once you are shallower than 0.6 meters / 2 feet, your LYNX will go ba ck i nt o sur fa ce m ode a nd of fer
you access to surface menus.
However, for n ext fe w minutes, it will r emain i n po st-dive mode. You can control length of this per iod,
in menu setti ng
Min imu m Surfa c e Int erval. T his mea ns that i f y ou r e sume y ou r di ve wit hi n t ha t peri od,
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Max: max depth of your last dive
: visual depiction of
: numerical depiction of
Dive Time: duration of your last di ve
: time in hours and minutes
Temperature: ambient temperature
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it will be cou n ted a s co nti nua tio n o f pr evi ou s di ve, in stea d of a n ew one . Thi s a ls o m ean s, t hat all t he
numbers, su ch as maximum depth, average dept h, dive time, etc. will not be reset.
After that, if you de cide to div e aga in, it wi ll b e c ou nted as a n e w di ve.
Last dive information
When on the surface, and not in Sleep Mode, your LYNX will display info rmatio n about t he la st div e
that you have done.
Tank Pressure Icon
the l as t tank pressure re ceived
PSI/BAR Value
the l as t tank pressure re ceived
Tank Battery Icon
LYNX Battery Icon
Surface
since you last surfaced
No Fly: counts down no-fly-time
Gas: Gas you currently have set up
Clock: curre nt tim e of day
Surface – it is time ela psed s ince y our las t di ve. If it i s les s than 2 4 hou rs, you will see t he num ber o f
hour s a n d m i nu tes. I f it is mor e t han 24 hours, you will s e e nu m ber of da y s a nd hour s. If it is more tha n
10 day s ago, you wi ll n ot s e e a ny surfa c e interva l .
Max – is the maximum depth of your last dive, with one decimal place. Depending on your unit
setting s, it will be either in met er s, or in feet, and you will se e “m” or “ft” print ed aft er the nu mber.
Dive Time – is the total ti me of the las t dive, dis play ed accor ding to you r dive ti me setting s – eith er a s
total number of minutes, or as hours:minutes.
No-Fly – thi s i s a tim er tha t cou nts down y our “ No Fly” ti me ac cordi ng to t he P ADI gu idel ines . The
PAD gui delines are as follows:
• Follow ing a single day of no-decomp ression diving, do not fly for 12 hour s
• Following several days of diving, or following a decompression dive, do not f ly for 24 ho urs
Thus you will see either a 12 hour or a 24 hour countdown appear after your dive. NOTE: PADI
guid elines do not tr y to predi ct your exact tis sue satu ratio ns or tim e to de satura tion, th ey are ge neral
“rules of thumb” and, as such, have inherent limitations. No guideline or “rule of thumb” can ever
guarantee perfect decompression safety. For an estimate of your tissue saturations, see the “
Your
Saturation” menu i tem.
Altitude Compens ation/Surface Pressure Adjustments
The LYNX does not have a water sens or that ca n s e nse wh eth er it is in th e water ba s ed on “ w etnes s” .
Instead, your LYNX cont in u ous ly t ra ck s a t mos ph er ic pr e ssu re to d eter mi ne th e su rfa c e pr e ssu r e at t he
start of y our dive. Whe n it sense s a sudde n cha nge i n am bient pre ssure, it understands that you ha ve
ent ere d t h e water an d t ha t a dive i s be gi nning .
Your LYNX can gen era ll y dis tin gui sh b et ween a sud den cha nge i n pr es sur e cau se d by wa ter en try , vs.
other types of sudden changes in pressure, such as a plane taking off, or driving up a mountain.
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This method o f surfac e pressu re detect ion ha s proven qu ite reliabl e, but it is always po ssible to trick
your LYNX, for exa mple:
• if you pla ce you r LYNX in shal low a nd ver y sta bl e body o f wat er ( su c h as a bucke t full of di ve
gear b eing rinsed), your LYNX ma y a ssu me that cu rrent sur face pre ssure is m ore than it i s in
reality. If you go divin g immediately after this, your de pth reading may be dis torted.
• i f you i n crease a m bient pressure very quickly after the LYNX has ad ju st ed for b ei ng at alt itu d e
(e.g. i f you were to skydi ve wit h a LYNX), it mi ght go i nto a pha ntom dive, as it will as sume
that you ha ve ent ere d the wa ter. I n thi s high ly unlikely case, the only solu tio n is t o r ese t your
LYNX by removing the battery (please refer to
Changing The LYNX’s Battery for detail s).
You can always check what LYNX as sume s as th e curr ent su rface pr essur e by g oing to th e “Status”
scr een (please refer to
Status sect io n f or details).
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Default Dive Gas is Air
Air as Dive Gas
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DIVING WITH YOUR LYNX IN TEC MODE
Overview
Your LYNX has a wi d e se t o f f ea tures t ha t can ass ist you w i th your dive plannin g a nd pre pa r a tion. T he
most ba si c selecti on is th e Mod e you wish t o use your unit in. The LYNX offers Rec, Tec and Gauge
modes. The default is Rec m od e, whic h only allows y ou t o dive wit h on e gas (21-40% oxygen). Should
you wi sh to ge t deco mpres sion i nfor matio n for di ves wi th mor e than on e gas, y ou shou ld swi tch you r
compu t er to Te c mo de. For deta i ls on mak i ng t he swit c h, pl ea s e s ee the
of the manual.
In Tec mode, the LYNX functions as a three-gas com pu ter. You can define one Dive Gas and two
Deco Gases, each f rom 21-100% oxygen. The default mix is Air as a Dive Gas.
Di ve P l a n ning > Mode section
50% and 100% O2 as Deco Gases
In t his mode t he LYNX as su mes you are pla nning to in cur some d ecompr ession o bligati on a nd gives
you con trol ov er a numbe r of extra settings, such as your level of
Conservatism, your Dive PO2 and
Deco PO2 levels, a nd the de pth of you r Last Deco S top (please see the relevant sections of the Dive
Setup me nu for m ode i n for mati on ). You a lso ha ve exten ded div e planni ng opti ons whi ch allo w you to
plan and view predicted deco stops (
Runtime).
Dur ing your dive, t he LYNX will b egin by di splayi ng you r No Dec ompre ssion Li mit (ND L). If you
complete your dive within the NDL time, the LYNX will tell you to complete a safety stop for 3
minutes at 5m/15ft. During t hese 3 minutes, if you drop below 6.5m/21ft, the safet y stop counter will
turn off and rese t. It will be gin aga in once you re turn to the s afety stop depth of 5m/ 15ft.
Should you continue diving beyond your NDL time – and you should only do this if you have
knowledge of decompression diving and sufficient gas to complete the dive safely - the LYNX will
start calculating your decompression obligation and indicate the depth and duration of any
deco mpress ion sto ps you nee d to compl ete to ex it the wa ter safel y. The unit calculates your ND L or
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your decompression plan using Bühlmann ZH-L16C
, with one of three possible levels of
Conservatism, base d on common Bühlmann Gradient Factors.
If you ha ve a T ank Tra nsmitt er set u p one , t wo or t hre e of your ta nks , and you ha ve tu rn ed th e LYN X
Air I nte gra ti on feature “On”, you will be able to track your tank pressure in PSI/BAR for the tank you
are currently breathing from. However, you will NOT be given an Air Time value, since it is
impossible to calculate this across multiple tanks.
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WARNING
NEVER un de r g o a de c o mpress io n di v e wit ho ut pr o pe r tra ining.
NEVER exceed the LYNX No Decompression Limit unless you are trained in decompression diving.
WARNING
Electron ics Can Fail – Always Carry Backup
Th e L Y NX dive computer hardware and the Tank and Location Tra n smitt er hard war e will e v entu ally fail,
like any electronic equipment whose components mature and age. If they fai l dur ing you r dive, th e y ca n stop
providin g you w i t h cr itical de c ompre s si o n an d t a nk pressu r e in f ormat ion.
You mu s t ha v e a plan to han dle the fai lu re of the LYNX dive computer, the Tank or Location Transmitter
during your di ve. You must always carry backup instruments, including a depth gaug e, submersi ble p ressure
gauge, digit a l bottom timer or dive watch, a compass, and have access to decompression tables. Do not risk
your life on onl y one source of information.
WARNING
Always Check For Software Upda t es .
The LYNX dive computer software likely still has bugs. We have looked for them and tried to eliminate
them, but they can still appear during use. Bugs can cause the unit to provide inaccurate or incomplete
inf ormat ion, or cause t he unit to reset or turn off and stop prov iding any inf ormation at all.
You should always check for software updates
(www.liquivision.com/downloads/LYNXSoftwareHistory.php) and install all applicable updates, every time
yo u prepare to use the LYNX dive computer.
Setting Up a Dive In Tec Mode
Once you have
Unlocked your LYNX, and set up the required Time/Date and Batt ery information,
setting up your first dive in Tec mode is very simple. All you need to do is:
1. Set up Metric/Imperial Units. Go to the “
Preferences > Units” menu item and make your s el ectio n.
2. Set the LYNX up in Tec mode. Go to the “
Dive Planning > Mode” menu item and select “Tec”.
3. Set up your de s ired level of Conservatism.
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When you switch from Rec mode to T ec mode for the first time, you will be
” menu item. The default setting is “2”. You can select from
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prompted t o enter your desired level of conservatism with this “Warning”
screenshot. Tap Left to exit this sc ree n.
You ca n e dit y our co nser vat is m by goin g t o “
Div e Pla nni ng > D iv e S etu p >
Conservatism
the followi ng:
Level “0” - standard Bühlmann ZH-L16C with no added conservatism (Gradient Factors 100/100)
Level “1” - Bühl ma n n ZH-L16C wi th some added cons erva tism (Gradient Factors 30/85)
Level “2” - Bühl ma n n ZH-L16C wi th more adde d conservatism (Gradient Factors 30/75)
4. Set up your PO2 Dive and PO2 D ec o v alues. In the same Dive Setup menu, you will have the option
to set up the maximum allowable partial pressure of oxygen in the gas you are br eathing, for both your
Dive Gas and your Deco Gas. “
Di ve Planning > Dive Setu p > PO2 Dive / PO2 Deco”. Th e de fa u lt for
yo ur Dive Gas is 1.4, and the defa ult for your Deco Gases is 1. 6.
5. Set up the depth of your last decompress ion stop. If you do not incur an y dec ompression, you will
automatically be p rompted to complete a
Safety Stop for 3 minutes at 5m/15ft and you cannot change
this depth. However, if you do enter into decompress ion, you can control the de pth of your last
decompre ss i o n st op – for e xample , i f th er e are big waves, you may li k e t o h a ve you r de c o stop wel l
beneath them. The default setting is 3m/10ft and increases in increm e nts of 3m /10ft.
6. Set up your dive gas . The default is “Air”. You can change it to any nitrox mix f r om A ir (21%) to
100% o xygen by following the instructions in the “
Dive Planning > Gases” section of this manual.
7. Set up your deco gases, if any. The default is “Off”. You can set Deco Gas 1 and Deco Gas 2 to any
nitrox mix from Air (21% ) to 100% oxygen by following the instr uc tions in the in the “
Gases” section of this manual.
>
8. Review your dive pl an. In Te c m o de , you have t w o op tions to prepar e for you r dive:
- Compute NDL
- Runtime
Entering the “
Di ve P lan ni ng > Compute NDL” menu it em will cr eate a ch art wit h the a mount of tim e
you can spend a t a giv en d ept h wi thou t i ncur ri ng a ny d eco mpr e ssi on. F or e xam ple, if you sel ect “ Air ”
as your dive gas, your NDL at 15 m (about 50 ft) will be 57 minutes. This can help you plan the
amount of ga s you t a k e o n you r dive.
Enter i ng the “
Di v e P l a n ning > Runtime” menu item allow s y ou to set up a di ve plan. For exam ple, y ou
can say that you are planni ng to dive to 30m/100ft for 20 minutes, and the computer will tell you the
total dura tion o f you r dive, i nclu din g any deco stops, base d on th e gases and level of co n s ervati s m you
have set up.
9. Set up your A larms by accessin g “
Dive Planning > Alarms”. The default settings are:
- Alarms “On”
- Depth: 30 metres (100 feet)
- Time: 60 minutes
- As ce nt Rat e: 10 metres p er minute (30 feet per minut e )
- De sc ent Ra te: 30 metr e s per min u t e (9 0 feet per minu te)
Dive Plannin g
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Dive on Air only
Dive on Air
Deco on 50% a nd 100%
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10. Set up Air Integrati on features. Read th e Air Integration surfa ce me n u s ection of this ma nual.
11. Cal ibrate Your Compass. This is described in the
Compass secti on of thi s ma nual.
12. If you want to use the Locator feature, unlock it. Th e Dire ctiona l Location feature can h elp you
locate a T1/U-2 Tank Tr a ns mi tter or L1 Location Transmi tter underwat er, as long as the Transmitter in
question i s w ithin r a ng e. This fea t u r e i s a n optiona l, fr e e B ETA upgr ade to the LY NX-AI functiona lity.
The Locator feature is provided through an experimental, BETA release, and requires that you
acknowledge that you understand its limitations before you can obtain a free PIN to unlock it.
Instr uctions on ho w to unlock it can be fou nd
manual. Instructions on how to use it can be found in the description of the under water
and th e
Diving Wit h You r LYNX - Locator Functions section of the manual.
Unl ock The Locator Feature of The LYNX section of this
Locate menu
13.Run a Dive Simulation. This feature, found in “
Dive Planning > Simulation” allows you to create a
dive simulation for a desired depth and time, at up to 4x normal speed. This lets you:
- Double-check all your dive settings (e.g. to catch that you have a depth alarm set to 30 m / 100 ft
whi le you pla n to dive to 40 m / 130 ft).
- Pre-view the dive scr een
- Practice accessing the
Layout, and familiarize yourself with the loc ation of key information .
Un d erwater Men us, and fami li arize yo urself with the options available.
14. Exit all menus, then select “Shut Off – you are now ready to dive! At the bottom of each menu
scr ee n th ere is th e op t i on t o “Exit”. Ke e p s electi n g t hi s u nt i l you r each the m a in m enu, the n s el e ct
“Sh ut Off” at the very to p of the main me nu. Your unit wil l go blank. You a r e now ready to dive!
Settings That Will Affect Your Dive
Gas Settin g s
You shoul d onl y set up t he ga ses y ou pl an to carr y on a giv en di ve, a s your LYNX will assume you
have t hese gases available to calculate your decompression. For example, if you u se the “
Runtime”
feature to pla n a dive t o 30m (about 100 ft) with 45 minutes of bottom t ime on Air with Deco Gases
“Off”, your LYNX will recommend 140 minutes of de co, vs. if you plan a 30m dive with 45 minutes of
bott om tim e on Air, with Deco Gas 1 set to 50% nitrox and Deco Gas 2 set to 100% oxygen, your
LYNX will recommend 79 minutes of dec o (this is assumes default conservatism and PO2 settings).
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Should you lose a gas during your dive, you should use the “LOST GAS” opti on t o rem ove t his gas
from your gas list, so that your LYNX recalculates your dive plan according to the gases you are
actually ca rry in g/ br eath ing.
Swit c hing Gas e s
Your LYNX doe s n ot aut omatica lly switc h gases u nder wat er durin g you r dive, however if it detects
that t here is a 'better ' gas for you to br eat he on th e as cent, it wil l flash th e gas ico n in the lo wer left
corner.
For exa m ple, i f you are making the dive described i n the previous section (diving “Air” to 30m/100ft,
bottom time of 45 minutes, Deco Gas 1 = 50%, Deco Gas 2 = 100%), the “
Runtime” surface dive
planning feature of your LYNX will suggest that you switch to 50% nitrox at 23m, and your LYNX
will flash the “Air” label in your dive screen at 23m/75ft , prompting you to switch.
On th e other ha nd, let’ s say t hat you were t o swit ch to 50 % nitr ox pr emat urely , jus t after you l eft the
bottom at 28m/90ft. Then your Gas label on your dive screen would start fla shin g, al ter na ti ng wi th t he
PO2 wa rning, t o tell y ou that you are curr ently br eathin g a gas that i s NOT consider ed breat habl e at
that depth and that you ought to switch to a gas that is considered breathable.
Swit c hing Gas e s ALSO Switches The Tank That is Monitored
Let ’ s sa y you have set up Air as your Dive Gas and O2 as your Deco Ga s in the
Di v e P l a n ning – Gases
menu, and y ou want t o s et up a Tank tran smit te r on eac h of tho se ta nk s. To do so, you shou ld ent er th e
Air Integration menu, change the setting from “Off” to “Tec-Solo”, and then enter the Transmitter
submenu. There you will see that, instead of a list of other people (Buddy, Stu1, Stu2 a nd so on) y ou
have a list of t he ga ses you have set up i n the D ive Pl anni ng menu . You shoul d the n turn t hes e tank s
“On” and verify that the maximum tank pressures are accurate. This is especially important in Tec
mode, as you ar e more li kely to ha ve tank s wit h diffe rent ma ximu m pre ssur es on your dive wh en you
have a Dive gas and one or two Deco gases.
When you go diving, it is important to understand that when yo u switch the gas mix you are
breathing, the LYNX will also switch the Tank transmitter it is monitoring accordingly.
Conservatism Setti ngs
The co ns ervat i sm sett ing o f your LYNX will affect t h e len gt h of y ou r No Decompr es sion Li mit (NDL)
or, if you enter into decompression, the depth and duration of your decompression stops. The more
con s ervati ve t he s etting, th e s h or ter you r NDL time an d the more decompression time you will incur. In
Tec mode, your LYNX is designed to default to the most conservat ive setting (Level “2”), but you can
adjust this to suit your needs. Her e is an e xa mple of a dive planned u sing the “
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Runtime” featur e, where
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Conservat ism Level 2
Conservat ism Level 1
Conservat ism Level 0
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the key parameters (Air, 30m/100ft, 20 minutes bottom time) are constant, but the level of
cons ervatism ha s be e n c ha n ged:
( = GFs 30/75)
Most Conservative
( = GFs 30/85)
( = GFs 100/100)
Least Conservative
You will see that th e t otal d iv e tim e on L evel 2 i s 30 minut e s, whil e the t otal dive time on L evel 0 is 23
minutes. We recommend that you dive on the default Level 2 setting unless you are familiar with
decompression theory in general, the specifics of the Bühl mann ZH -L16C mo del, i nclu ding Grad ient
Factors. You can learn more about these topics by referring to the works listed in our
Bibliography
.
PO2 Settings
Dive PO2 and Dec o P O2 menu it em s al lo w you t o set t he ma xi mu m a ll owa bl e pa rt ia l pr e ssu r e o f
The
oxy gen for t he gas you are br eathi ng. The default (and maximum) value for your Dive PO2 is 1.40,
while the default (and ma ximum) value for your Deco PO2 is 1.60. Should you exceed those values at
any ti me dur ing y our dive, you r Ga s la bel in th e dive s cre en wil l sta rt fla sh ing , an d alter na ti ng with the
PO2 alarm.
Safet y St o p/Deco Stops
If you b egin y ou r fi na l asc e nt within t h e N o Deco m pressi on Limit time, you will be asked to compl ete
a sa fe ty st o p for 3 mi nutes at 5m / 15ft. If, at any time during these 3 minutes, you drop below 6.5m /
21ft, the safety stop counter will turn o f f and reset . I t will begin again once you retu r n to the safety s top
depth of 5m / 15ft. The safety st op i s o ptional . If you sk ip the safety st op, you will not be pe na l i z ed.
If y ou e xce ed t he N DL, t h en y our LYNX will a utomat ically start computing your decompression plan
and wil l su gg est d ec ompr e ssi on st op s ac cor din gl y. It w ill N OT sug ge st a m anda tor y sa fet y st op in t hi s
scenario, as the safety requirements should be ful filled by following the decompression stops.
Oxygen Loa ding
During the dive, your LYNX calculates your CNS (Central Nervous
Syst e m) and OTU (Oxygen Toxi city U nit) loadi n g. Your cu r rent CNS/OTU
levels are easy to access through the
screen looks like this.
For a full explanation of CNS/OTU values, please refer to your nitrox
trai ni ng manua l .
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Your Saturation menu item a nd the
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The larg e yell ow nu mber in th e upp er-right-hand corner of your display
starting from the moment your LYNX reaches 1.6 meters / 5.25 feet. It
The green number in the lower-right-hand corner of the display (here,
chose imperial units, you will see the depth in feet, with no decimal
” section of the manual for details on
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Enteri ng the water
Turning Your LYNX On
We recommend that you turn your LYNX on yourself before you enter the water to check the
remaining battery power and to make sure that all is functioning properly. You can turn it on by
tapping the unit in the Down direction 3/5 times. Ot herwise, it will tur n on automaticall y few seconds
after you take it deeper than 1.6 meters / 5. 25 feet.
Beginning Your Dive
When you sta rt to descend and go below 1.6 meters / 5.25 feet, your LYNX will turn into dive mode.
Dive Display
There are two main types of underwater display layouts depending on the type of Air Integration
display mode you have chosen: Off/ or Tec-Solo.
Dive Time
(her e, cir cl e d i n re d) i s t he D iv e Ti m e. D iv e ti m e i s m ea sur ed i n se co nd s,
will stop once you surface, and it will reset once you have been on the
sur fac e for mor e than the
Minimum Surface Interval.
The m inutes of your dive can be displayed as follows (refer to the “Show Hours” section for detail s) :
• minutes:seconds, e.g. 135:00
• hours:minutes:seconds, e .g. 2:15:00
Depth
circl ed i n red) is you r Cur re nt De pth. I f you cho se met ric u nits, you will
see the depth in meters, with one decimal place in smaller font. If you
places. Please refer to the “
Units
choosing units.
Air Integration
Whe n Air Int e grat io n i s “O ff”, t her e i s NO t a nk i n forma tio n dis pla yed. I f you tu rn t h e Air In te grat io n
feature “On” by selecting the “Tec-Sol o” op t i on and are equ i pped with a T a nk Tra ns mitter on on e , two
or thr e e o f you r tank s, you will se e air i n f ormati o n on your dive screen.
Your tank i nfor mati on i s sho wn as a graph ica l tank i con on th e mi ddle le ft sid e of t he sc reen, with a
PSI/BAR tank pressure value below it, as well as your tank transmitter battery icon.
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TTS: Your Tot al Time To Surface includi ng
Max Depth: This is th e m aximum depth you
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The tank and pr e ssur e valu es can be green, yellow, orange or red, depending on the amount of pressure
left i n th e ta nk. Y ou ca n s et t he ta nk pr e ssur e valu e s at w hic h th e col or s ch ang e in th e
Air Integration -
Transmitter surface menu. Y ou can set the pressure units in the Air Integration – Units surface me n u .
Here is how the tank displays would appear on a three ga s dive to 40m (130 ft):
Air – Dive Gas 50% - Deco Ga s O2 – Deco Gas
Remember! When yo u switch gases underw ater, the LYNX automatically start s monitoring th e
transmitter of the new gas.
TTS (Total Time to Surface) and Max Depth Display
If you tur ne d the “
Show TTS” or “Show MAX” f eatur es on in t he sur face Dis play Sett ing s menu, y ou
will see these values displayed on your screen. If you only selected one of them, it will appear
cont inuous l y . I f y ou se l ec t e d b oth, the y wi l l al t ernat e.
TTS Max Depth
decompr es s ion stops and assuming safe ascent rates
have reached on this dive
Decompressio n Inform ation Zone
The horizontal section in the middle of the screen is reserved for your No Decompression Limit or
decompre ss i o n infor ma tion.
No Deco:
Earl y in the dive, the NDL v a lue is very lar ge and s how n as “---“. Once it is
less than one hour, the ND L value is shown in minutes.
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Planned Deco:
1. Large Up Arrow
2. Small Up Arrows &
start of Starfish
3. Hold St arf ish in box!
4. Small Down Arrows
& Stop A l arm
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Once you run out of ND L t ime, your LYNX will sh ow the deepest planned
deco stop dep t h and its dur ation in minutes:seconds. The “Hand”
symbol me ans “Stop” and the “Clock” sym bol means “Time ” . In
this case, you have a planned stop at 3m for 10 seconds.
During Deco:
When you re ac h your de c o stop, your LYNX w il l show your Stop Depth
(here: 6m) and your Stop Time (here: 1 mins 10 sec )
• NDL – No Decompression Limit is the maximum time you can stay at your current depth
before you will incur a de co m pression obligation. It is displayed in minutes, and r ounded down
to the n ea rest minu te. Y ou s hou ld NE VER exce ed this ti m e, u nless y ou ha v e s p e cific tra ining in
decompre ss i o n diving .
• Stop Depth/Time – These values will appear together once you reach your first/deepest
decompression stop. The stop time is in minutes:seconds. If you are shallower than this stop, the
dept h va lue wil l bl i nk to remind you t o g o d ee per.
Grap hical Decompre s s ion Stop Information
In TE C Mod e LYN X pro vides you wi th gra phi cal cu es to help you ex ecut e your d ecom pre ssio n plan
correctly. The large “Up” arrow appear s when you need to ascend to your next stop. The small “Up”
arrows and starfish show that you are arriving close to your next stop. Once the starfish shows fully in
the box on your screen, it means you have reached your decompression stop depth. If you overshoot
your d ecompr ession s top, i.e. asc end farth er than you should , you will s ee small d own arr ows telli ng
yo u to desc end, and the decompression stop alarm will be activated (flashing depth).
Graphical Ascent/Descent Indicators & Alarms
The LYNX provides you with a number of graphi cal cues to help you ma nage your de sce nt an d as cent
rates , based on the
Alarms you have set up.
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1. Descent Rate
2. Descent R at e A la rm
3. Ascent Rate
4. As cent Rat e A larm
Your LYN X offers a vi sual indicator of Central Nervous Sy st em (CNS)
Your LYN X offers a visual indica tor of Nitrogen (N2) loading. During the
means you have excess nitrogen that you must release through
adequate training and sufficient gas reserves to execute a
Your curre nt gas is shown on t he bottom le ft of t he
AI Off
Tec-Solo Mode
AI Off
Solo/Buddy
The gas ala r m will b e dis play ed in the low er left
corner of the screen, and it will blink when the ga s
CNS Loadi ng
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oxy gen l oa di ng w he n Air I nt e grati on i s “O ff” onl y. W he n
Air I nt egra ti on
in “O n” , t he C N S tr ack er i s not vi si bl e. H o wev er , th e CN S i n for mat i on i s
being recorded and can be reviewed after your dive in the
Di ve Log.
N2 Loading
NDL (No Deco Limit) period, the N2 indicator will be green. As you
exceed your NDL, the N2 indicator will add yellow and red bars. This
decompression. You should not enter decompression unless you have
deco mpr e ss ion plan!
Gas
screen, in a slightly di fferent position depe nding on
whether Air Integration is “Off” or in “Tec-Solo”
mode.
Gas/PO2/CNS
you ar e breat hi ng is not ap propria te for some
reason. The most common reason is that you have
exceeded the maximum PO2 for th e gas you are
breathing (1.4 for a Dive Gas and 1.6 for a Deco
Gas).
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The PO2 alar m w ill be displa yed in the lower l eft
corner of the screen, and it will flash when you
The CNS alarm will be displayed if you have
. For more information
The cu rr e nt t e mper at ur e o f t he su rr ou n din g env iro nm ent is di spl a yed i n t he
a “C” or “F” letter next to the temperature value to let you know which
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exc e ed the maxi mum a llowabl e PO2 given the gas
you are breathing. The maximum PO2 setting is
1.4 in for your Dive Gas, and 1.6 for your Deco
Gases.
exceeded your CNS limit
on this alarm, please refer to the Ox ygen loadin g
section of the manual .
Temperature
lower-left-hand corner, n ext to the ba t t ery indicat or.
It i s dis play ed eit her i n Ce lsiu s or i n Fa hren heit, dep endi ng on your Unit s
setting (r efer to th e “
Units” section of the manual for d etail s). You wi ll see
units you ha ve se lected.
Keep in mind tha t th e te mpera tur e sen sor is i nsid e th e LYNX unit, so it may take a moment for it to
adjust to a rapid external tempera t u re chang e.
The LYNX will function when its internal temperature is between - 0 to 40°C (32 to 104°F). If the
LYNX’s internal temperature exceeds 40°C/104°F (i n dir ect su nlight , for e xampl e) the OLED di spla y
coul d sho w some visua l distu rban ces. This is not a product failure – the di splay will r etur n to nor mal
when the unit is cooled down .
Batt er y I n dicat or – LYNX
The ba tt ery s tat us i s repr e sent ed gra p hi call y wi th a ba tt er y ico n. The bat te r y ico n star ts out gree n, t hen
it turns yellow and then red. Lithiu m batt erie s hav e a very s teep dr op -off volt age cur ve, whi ch mean s
they a ppear full until the very last moment, w he n they quickly deplete. The refore, the battery only turns
yellow wit h a bout 1-1.5 hours of life left in the battery.
- If the battery icon is yellow on the surface, you should change your battery before beginning
your n e xt dive.
- If the battery icon is yellow un derwater, you have en ou gh batt ery life to co m plete you r di ve.
- If the battery icon is red on th e surfa ce, you M UST chan ge your ba ttery immediately.
- If the battery icon turns r ed duri ng yo ur d ive , you sh oul d st op y our di ve and begi n you r a s cent
immediately, while still following proper ascent protocols (proper ascent speed, respect the
Safet y S t op).
Both whe n Air I nte gra ti on is “ O ff” or you are in “Tec-Sol o” m ode , y our LY NX ba tt er y indi ca tor is i n
the lower left corner of your screen.
Liquivision Products, Inc -96- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
Air Integrated Dive Computer User Manual
AI Off
Tec-Solo
Tec-Solo Mode
Your transmitter
™
WARNING
You must change your battery immediately when the indicator turns red
Lit hiu m batteries su sta in high p ower for a l o n g time, but once the power start s to drop, it does so very
fast. A r e d ba ttery indica tor means that the battery p ower wil l drop to i n sufficient po wer within a few
minutes.
Batt er y I n dicat ors – Transmitter(s)
Transmitter battery information will only appear when Air Integration is “On”.
The ba tt ery s tat us i s repr e sent ed gra p hi call y wi th a ba tt er y ico n. The bat te r y ico n star ts out gree n, t hen
it tu rns yell ow an d the n red. Lit hiu m batt eries have a very st eep dr op-of f volta ge curv e, which m eans
they a ppear full until the very last moment, w hen they quickly de plete . The refore, the battery only turns
yellow wit h a bout 1-1.5 hours of life left in the battery.
- I f th e batt ery ico n is yellow on the surface, you should cha nge your batter y before beginning
your n e xt dive.
- If the battery icon is yellow un derwater, you have en ou gh batt ery life to co m plete you r di ve.
- If the battery icon is red on th e surfa ce, you MUS T change your batte ry immediately.
- If the battery icon turns r ed duri ng yo ur d ive , you should stop your dive and begi n your as cent
immediately, while still following proper ascent protocols (proper ascent speed, respect the
Safet y S t op).
battery icon
The battery life is significantly affected by the Air Integration mode you select and the brightness
sett in g of y our di s pla y. Learn more about your LYNX’s batt er y in th e se cti on “
U-2, and L 1 Bat tery Types”.
Liquivision Products, Inc -97- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
Overview of Lynx, T1,
Air Integrated Dive Computer User Manual
Max: max depth of your last dive
: visual depiction of
: numerical depiction of
Dive Time: duration of your last di ve
: time in hours and minutes
™
“Battery Savings” mode
In the event that y our ba tter y is very low during the dive, your LYNX wil l go int o “Battery Savings”
mode. It is a mode that tries to preserve the battery as much as possible, so that the LYNX keeps
functioning as long as possible. This mode changes the following things:
• all the information on the display will turn green (the color that is most power-economical)
• the displ a y br ig htne s s wi ll be set to low
For mor e det ail s, p leas e re fer t o
Batt ery Savin gs Mode: When You r Battery V oltage Dro ps Belo w A
Critical Lev el
Exiting the water
Once you are shallower than 0.6 meters / 2 feet, your LYNX will go ba ck i nt o sur fa ce m ode a nd of fer
you access to surface menus.
However, for n ext fe w minutes, it will r emain i n po st-dive mode. You can control length of this period,
in menu setti ng
Min imu m Surfa c e Int erval. T his mea ns that i f y ou r e sume y ou r di ve wit hi n t ha t peri od,
it wil l be c oun t ed a s c onti nu atio n of pr e vi ous div e, i ns tea d o f a ne w o ne. T hi s al so mea ns , tha t a ll t h e
numbers, su ch as maximum depth, average dept h, dive time, etc. will not be reset.
After that, if you de cide to div e aga in, it wi ll b e c ou nted as a n e w di ve.
Last dive information
When on the surface, and not in Sleep Mode, your LYNX will display info rmation about the last dive
that you have done.
Tank Pressure Icon
the l as t tank pressure re ceived
PSI/BAR Value
the l as t tank pressure re ceived
Tank Battery Icon
LYNX Battery Icon
Surface – it is time elapsed since your last dive. If it is less than 24 hours, you will see the number of
hour s a n d m i nu tes. I f it is mor e t han 24 hours, you will s e e nu m ber of da ys and h ou rs. If it i s more tha n
10 day s ago, you wi ll n ot s e e a ny surfa c e interva l .
Max – is the maximum depth of your last dive, with one decimal place. Depending on your unit
setting s, it will be either in met er s, or in feet, and you will se e “m” or “ft” pr int e d after th e nu mber .
Dive Time – is the total ti me of the las t dive, dis play ed accor ding to your dive time settings – eith er a s
total number of minutes, or as hours:minutes.
No-Fly – thi s i s a tim er tha t cou nts down y our “ No Fly” ti me ac cordi ng to t he P ADI gu idel ines . Th e
PAD gui delines are as follows:
• Follow ing a single day of no-decompression diving, do not fly for 12 hours
• Following several days of diving, or following a decompression dive, do not f ly for 24 ho urs
Surface
since you last surfaced
No Fly: counts down no-fly-time
Gas: Gas you currently have se t up
Clock: curre nt tim e of day
Temperature: ambient temperature
Liquivision Products, Inc -98- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
Air Integrated Dive Computer User Manual
™
Thus you will see either a 12 hour or a 24 hour countdown appear after your dive. NOTE: PADI
guid elines do not tr y to predi ct your exact tissue saturations or time to desaturation, they are general
“rules of thumb” and, as such, have inherent limitations. No guideline or “rule of thumb” can ever
guarantee perfect decompression safety. For an estimate of your tissue saturations, see the “
Your
Saturation” menu i tem.
Altitude Compens ation/Surface Pressure Adjustments
The LYNX do e s n ot have a wa t er s e ns or that ca n s e n s e w h eth er it is in th e wa t er based on “ wetne ss” .
Instead, your LYNX cont i nu ou sly tra cks at mo sp her ic pr e ssu re to d et er mi ne t he su rfa ce p r es sur e a t t he
start of your dive. When it senses a sudden change in ambient pressure, it under stands that you have
ent ere d t h e water an d t ha t a dive i s be gi nning .
Your LYNX can gen era ll y dis tin gui sh b et ween a sud den cha nge i n pr es sur e cau se d by wa ter en try , vs.
other types of sudden changes in pressure, such as a plane taking off, or driving up a m ount ain.
This method o f surfac e pressu re detect ion ha s proven qu ite reliabl e, but it is alway s possi ble to trick
your LYNX, for exa mple:
• if you pla ce you r LYNX in shal low a nd ver y sta bl e body o f wat er ( su c h as a bucke t full of di ve
gear being rinsed), your LYNX ma y a ssu me t hat curre nt surfa ce pressu re is mor e than it is in
reality. If you go divin g immediately after this, your de pth reading may be dis torted.
• i f you i n crease a m bient pressure very quickly after the LYNX has adj u sted for b ei ng at alt itu d e
(e.g. i f you were to skydi ve wit h a LYNX), it mi ght go i nto a pha ntom dive, a s it wi ll a ssu me
that you ha ve ent ere d the wa ter. I n thi s high ly unlikely case, the only solu tio n is t o r ese t your
LYNX by removing the battery (please refer to
Changing The LYNX’s Battery for detail s).
You can always chec k what LYNX assumes as the c urrent surface pressure by going to t he “Status”
scr een (pl ease r e f er t o
Status section for detail s) .
Liquivision Products, Inc -99- Manua l 1.6; Lynx 1.18; US 1.1 1; U-2 3.06
Air Integrated Dive Computer User Manual
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DIVING WITH YOUR LYNX IN GAUGE MODE
Enteri ng the water
Dive Planni ng
WARNING
Your LYNX in Gauge Mode acts as a bottom time r – it calculate s the duration of your dive, its de pth,
and ot h er si m ple paramet ers. It doe s n ot ma ke any d e compr e s si on calcula tion s, n or does it pr ovide a n y
decompression information. Y ou will need to use other means (tables, desktop decompression planners ,
dive co m pu t e rs, etc.) to plan you r dive.
Never attempt to plan a decompression dive without a proper training.
Although your LYNX in Gauge Mode does not prov ide any decompression inf orm ation, it will be a
great tool in assisting you to execute a pre-planned dive.
In Gauge Mode, the LYNX offers a limited set of Air Integration features. These are ava ilable only if
yo u have turned the LYNX
or more tanks. Due to screen layout constraints, only Group 4 and Group 9 Air Integration modes are
avai labl e i n Gau g e Di ve M od e. S olo a nd B u ddy Air I nt egr ati on mo des ar e not available. However , do
not despair! You can still set up just your tank as “You” in Group mode and get your own air
information. You can also set up your Buddy’s tank as “Stu1” in Group mode and thus get you
Budd y’s tank pressure – you can rename “Stu1” to “B uddy” or to you Buddy’s ac tual name.
In Ga uge Mode, you can use the Locator function. The D irectio nal Loc a tion feature can help you locate
a T1/U-2 Tank Transmitter or L1 Location Transmitter underwater, as long as the Transmitter in
question i s w ithin r a ng e. This fea t u r e i s a n optiona l, fr e e B ETA upgr ade to the LY NX-AI functiona lity.
The Locator feature is provided through an experimental, BETA release, and requires that you
acknowledge that you understand its limitations before you can obtain a free PIN to unlock it.
Instructions on how to u nl ock it ca n be found
manual. Instructions on how to use it can be found in the description of the under water
and th e
Diving Wit h You r LYNX - Locator Functions section of the manual.
Air Integration feature “On”, and you have set up Tank Transmitte rs on one
Unl ock The Locator Feature of The LYNX sectio n of this
Locate menu
IMPORTANT NOTE ON SWITCHING TO/FROM GAUGE MODE
In Gauge Mode, surface off-gassin g c ontinues when the devi ce is above
water. Once the device is underwater, all deco calculations are sus pended.
When switchi ng from Gauge Mode to Rec/Tec Mode, the deco information
will no longer be accurate, since prev ious tissue values are used.
When you switch out of Gauge Mode, you will see this warning:
Liquivision Products, Inc -100- Manual 1.6; Lynx 1.18; US 1.11; U-2 3.06
Tap Left to con tinue.
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