SUUNTO D9tx User Manual
SUUNTO D9tx
User’s GUide
en
1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS .. ... ... ... ... ... 8
2. WARNINGS, CAUTIONS, AND NOTES . ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... .. 9
3. SUUNTO USER INTERFACE . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... 20
3.1. Navigating in the menus . ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... 21
3.2. Button symbols and functions . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... 23
4. GETTING STARTED .. ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . .. 25
4.1. TIME mode settings . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. 25
4.1.1. Setting the alarm . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . 27
4.1.2. Setting the time ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... 27
4.1.3. Setting the dual time . ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... .. 28
4.1.4. Setting the date .. ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... . 28
4.1.5. Setting the units . ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... . 28
4.1.6. Setting the backlight . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... .. 29
4.1.7. Setting the contrast ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... . 29
4.1.8. Setting the tones . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. 30
4.2. Stopwatch ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . . 30
4.3. AC water contacts . ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... . 31
4.4. Learning how to use your compass . ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. 32
4.4.1. Compass display . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. 33
4.4.2. Locking a bearing . ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... .. 34
4.4.3. Compass settings . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... 35
4.5. Apnea Timer .. ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... . 38
5. BEFORE DIVING . ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . 41
5.1. The Suunto Technical RGBM . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... . 41
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5.2. Emergency ascents . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. 42
5.3. Dive computer limitations ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... 42
5.4. Freediving ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 43
5.5. Audible and visual alarms . ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... . 43
5.6. Error conditions . ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... . 48
5.7. Wireless transmission . ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... 49
5.7.1. Installing the wireless transmitter .. ... ... ... ... ... . .. . .. . ... ... ... ... ... ... 49
5.7.2. Pairing and code selection . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... . 50
5.7.3. Transmitting data .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . . 53
5.8. DIVE mode settings . . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . . 55
5.8.1. Setting the gases .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 57
5.8.2. Setting the personal/altitude adjustments . .. . .. . .. . ... ... ... ... ... ... ... . 59
5.8.3. Setting the tank pressure pairing . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... . 59
5.8.4. Setting the tank pressure alarm . ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . . 60
5.8.5. Setting the depth alarm .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... . 60
5.8.6. Setting the depth notify alarm (FREE mode) . ... ... ... ... . .. . .. . .. . ... ... 61
5.8.7. Setting the dive-time alarm . . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... . 61
5.8.8. Setting the surface time notify alarm (FREE mode) .. ... ... ... ... ... ... . 62
5.8.9. Setting the sample rate . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... 62
5.8.10. Setting the deep stops . . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... . 63
5.8.11. Setting the air time . . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... 63
5.8.12. Setting the units .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 64
5.9. Activation and pre-checks ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... .. 64
5.9.1. Accessing DIVE mode ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... . 65
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5.9.2. DIVE mode activation .. . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... 65
5.9.3. Battery power indication . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... .. 68
5.9.4. Diving at altitude .. ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... 69
5.9.5. Personal adjustments .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... 70
5.10. Safety Stops . ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. 73
5.10.1. Recommended Safety Stops . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... . 73
5.10.2. Mandatory Safety Stops ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... 74
5.11. Deep stops . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... .. 75
6. DIVING . ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . 77
6.1. Diving in the AIR mode (DIVE Air) . ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... 77
6.1.1. Basic dive data . ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... .. 78
6.1.2. Bookmark . ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 79
6.1.3. Tank pressure data .. . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... 80
6.1.4. Ascent rate indicator . . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... .. 82
6.1.5. Safety Stops and Deep Stops . . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... 83
6.1.6. Stopwatch (Timer) . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . . 83
6.1.7. Decompression dives . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... .. 84
6.2. Diving in MIXED mode . ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... . 89
6.2.1. Before diving in the MIXED mode ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . 89
6.2.2. Oxygen and helium displays . ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. 91
6.2.3. Oxygen limit fraction (OLF%) ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. 92
6.2.4. Gas change and multiple breathing gas mixes . .. . ... ... ... ... ... ... ... . 93
6.3. Diving in the GAUGE mode (DIVE Gauge) ... ... ... ... ... . .. . .. . ... ... ... ... . 95
6.4. Diving in the FREE mode (DIVE Free) ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. 95
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6.4.1. Day History . ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... 96
6.4.2. Free dive time limit . ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... . 97
7. AFTER DIVING ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . . 98
7.1. Surface interval ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... .. 98
7.2. Dive numbering . ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... . 99
7.2.1. FREE Dive .. . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 100
7.3. Repetitive dive planning ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... 100
7.4. Flying after diving . ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... 100
7.5. DIVE PLANNING mode (PLAN NoDec) . ... ... . .. . .. . .. . ... ... ... ... ... ... ... 101
7.5.1. Dive numbering shown during dive planning . . ... ... ... ... ... ... ... . .. . 103
7.6. MEMORY mode . ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... .. 104
7.6.1. Dive logbook (MEM Logbook) .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... . 104
7.6.2. Dive history . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . . 106
7.7. Suunto DM4 ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . 108
7.8. Movescount . . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... 109
8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER ... ... ... 111
9. BATTERY REPLACEMENT . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... . 114
9.1. Computer battery replacement ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... . 114
9.2. Wireless transmitter battery replacement . ... ... . .. . .. . ... ... ... ... ... ... ... . 115
9.2.1. Transmitter battery kit . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... .. 115
9.2.2. Required tools .. . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... . 115
9.2.3. Replacing the transmitter battery . . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... . 115
10. TECHNICAL DATA ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . 117
10.1. Technical specifications ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... ... ... .. 117
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10.2. Suunto RGBM ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... . 121
10.2.1. Suunto Technical RGBM decompression model ... ... . .. . .. . ... ... .. 122
10.2.2. Diver safety and Suunto Technical RGBM model . ... . .. . .. . ... ... ... 123
10.2.3. Altitude diving ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... .. 124
10.3. Oxygen exposure . . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . . 125
11. INTELLECTUAL PROPERTY . ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . ... 126
11.1. Trademark . ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... . 126
11.2. Copyright . ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. 126
11.3. Patent notice . ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . 126
12. DISCLAIMERS . . ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... 127
12.1. CE . ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... . 127
12.2. EN 13319 ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... 127
12.3. EN 250 / FIOH . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. 127
13. SUUNTO LIMITED WARRANTY . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . ... ... ... .. 128
14. DISPOSAL OF THE DEVICE . ... ... ... ... ... . .. . .. . .. . ... ... ... ... ... ... ... . .. . .. . 130
GLOSSARY ... ... ... . .. . .. . ... ... ... ... ... ... ... ... . .. . .. . ... ... ... ... ... ... ... . .. . .. . .. . 131
7
1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS
Suunto D9tx wristop dive computer is designed to help you get the most out of your
diving.
Suunto D9tx is the world’s first wristop sized dive computer to integrate a tilt-compensated 3D digital compass, wireless tank pressure reception, and trimix functions.It
simplifies your diving experience because all the information you need relating to
depth, time, optional tank pressure, decompression status, and direction is now
available on one easy-to-read screen.
The Suunto D9tx User's Guide contains vitally important information which enables
you to become familiar with your Suunto wristop dive computer. To understand the
use, displays, and limitations of the instrument before using it, please read this user's
guide carefully, and save it for further reference. Note also that a glossary is included
at the back of the user's guide to help you understand dive-specific terminology.
8
2. WARNINGS, CAUTIONS, AND NOTES
Throughout this user's guide, important safety icons are displayed. Three classifications
are used to separate these icons by their order of importance:
WARNING
is used in connection with a procedure or situation that may
result in serious injury or death
CAUTION
NOTE
Before you go on to read the user's guide itself, it is extremely important that you read
the following warnings. These warnings are intended to maximize your safety while
using Suunto D9tx and must not be ignored.
WARNING
WARNING
is used in connection with a procedure or situation that will
result in damage to the device
is used to emphasize important information
YOU MUST READ the leaflet and user guide for your dive
computer. Failure to do so may lead to improper use, serious
injury or death.
ALLERGIC REACTIONS OR SKIN IRRITATIONS MAY OCCUR WHEN PRODUCT IS IN CONTACT WITH SKIN, EVEN
THOUGH OUR PRODUCTS COMPLY WITH INDUSTRY
STANDARDS. IN SUCH EVENT, STOP USE IMMEDIATELY
AND CONSULT A DOCTOR.
9
WARNING
NOT FOR PROFESSIONAL USE! Suunto dive computers
are intended for recreational use only. The demands of commercial or professional diving may expose the diver to depths
and conditions that tend to increase the risk of decompression
illness (DCI). Therefore, Suunto strongly recommends that
the device not be used for any commercial or professional
diving activities.
WARNING
10
ONLY DIVERS TRAINED IN PROPER USE OF SCUBA
DIVING EQUIPMENT SHOULD USE A DIVE COMPUTER!
No dive computer can replace the need for proper dive training. Insufficient or improper training may cause a diver to
commit errors that may lead to serious injury or death.
WARNING
THERE IS ALWAYS A RISK OF DECOMPRESSION ILLNESS
(DCI) FOR ANY DIVE PROFILE EVEN IF YOU FOLLOW
THE DIVE PLAN PRESCRIBED BY DIVE TABLES OR A
DIVE COMPUTER. NO PROCEDURE, DIVE COMPUTER
OR DIVE TABLE WILL PREVENT THE POSSIBILITY OF
DCI OR OXYGEN TOXICITY! An individual’s physiological
make up can vary from day to day. The dive computer cannot
account for these variations. You are strongly advised to remain well within the exposure limits provided by the instrument
to minimize the risk of DCI. As an added measure of safety,
you should consult a physician regarding your fitness before
diving.
WARNING
SUUNTO STRONGLY RECOMMENDS THAT SPORT
DIVERS LIMIT THEIR MAXIMUM DEPTH TO 40 M/130 FT
OR TO THE DEPTH CALCULATED BY THE COMPUTER
BASED ON THE SELECTED O2% AND A MAXIMUM PO
OF 1.4 BAR! Exposure to greater depths increases the risk
of oxygen toxicity and decompression illness.
11
2
WARNING
DIVES WITH REQUIRED DECOMPRESSION STOPS ARE
NOT RECOMMENDED. YOU SHOULD ASCEND AND BEGIN
DECOMPRESSION IMMEDIATELY WHEN THE DIVE
COMPUTER SHOWS YOU THAT A DECOMPRESSION
STOP IS REQUIRED! Note the blinking ASC TIME symbol
and the upward pointing arrow.
WARNING
WARNING
12
USE BACK-UP INSTRUMENTS! Ensure that you use backup instrumentation, including a depth gauge, submersible
pressure gauge, timer or watch, and have access to decompression tables whenever diving with the dive computer.
PERFORM PRE-CHECKS! Always activate and check the
device before diving in order to ensure that all Liquid Crystal
Display (LCD) segments are completely displayed, the device
has not run out of battery power, and that the oxygen, altitude,
personal, and Safety/Deep Stop are correct.
WARNING
YOU ARE ADVISED TO AVOID FLYING ANY TIME THE
COMPUTER COUNTS DOWN THE NO-FLY TIME. ALWAYS
ACTIVATE THE COMPUTER TO CHECK THE REMAINING
NO-FLY TIME PRIOR TO FLYING! Flying or traveling to a
higher altitude within the no-fly time can greatly increase the
risk of DCI. Review the recommendations given by Divers
Alert Network (DAN). There can never be a flying after diving
rule that is guaranteed to completely prevent decompression
illness!
WARNING
WARNING
THE DIVE COMPUTER SHOULD NEVER BE TRADED OR
SHARED BETWEEN USERS WHILE IT IS IN OPERATION!
Its information will not apply to someone who has not been
wearing it throughout a dive or sequence of repetitive dives.
Its dive profiles must match that of the user. If it is left on the
surface during any dive, the dive computer will give inaccurate
information for subsequent dives. No dive computer can take
into account dives made without the computer. Thus, any
diving activity up to four days prior to initial use of the computer
may cause misleading information and must be avoided.
DO NOT EXPOSE ANY PART OF YOUR DIVE COMPUTER
TO ANY GAS MIX CONTAINING MORE THAN 40% OXYGEN! Enriched air with greater oxygen content presents a
risk of fire or explosion and serious injury or death.
13
WARNING
THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL
PERCENTAGE VALUES OF OXYGEN CONCENTRATION.
DO NOT ROUND UP FRACTIONAL PERCENTAGES! For
example, 31.8% oxygen should be entered as 31%. Rounding
up will cause nitrogen percentages to be understated and will
affect decompression calculations. If there is a desire to adjust
the computer to provide more conservative calculations, use
the personal adjustment feature to affect decompression calculations or reduce the PO2setting to affect oxygen exposure
according to the entered O2% and PO2values. As a safety
precaution, the oxygen calculations in the dive computer are
made with an oxygen percentage of 1% + set O2%.
WARNING
14
SET THE CORRECT ALTITUDE ADJUSTMENT MODE!
When diving at altitudes greater than 300 m/1000 ft, the Altitude Adjustment feature must be correctly selected in order
for the computer to calculate the decompression status. The
dive computer is not intended for use at altitudes greater than
3000 m/10000 ft. Failure to select the correct Altitude Adjustment setting or diving above the maximum altitude limit will
result in erroneous dive and planning data.
WARNING
SET THE CORRECT PERSONAL ADJUSTMENT MODE!
Whenever it is believed that factors that tend to increase the
possibility of DCI exist, it is recommended that you use this
option to make the calculations more conservative. Failure to
select the correct Personal Adjustment setting will result in
erroneous dive and planning data.
WARNING
WARNING
DO NOT EXCEED THE MAXIMUM ASCENT RATE! Rapid
ascents increase the risk of injury. You should always make
the Mandatory and Recommended Safety Stops after you
have exceeded the maximum recommended ascent rate. If
this Mandatory Safety Stop is not completed the decompression model will penalize your next dive(s).
YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN
DISPLAYED BY THE INSTRUMENT! The ascent time will
increase if you:
• remain at depth
• ascend slower than 10 m/min / 33 ft/min or
• make your decompression stop deeper than at the ceiling
These factors will also increase the amount of air required to
reach the surface.
15
WARNING
NEVER ASCEND ABOVE THE CEILING! You must not ascend above the ceiling during your decompression. In order
to avoid doing so by accident, you should stay somewhat
below the ceiling.
WARNING
WARNING
WARNING
16
DO NOT DIVE WITH A CYLINDER OF ENRICHED AIR IF
YOU HAVE NOT PERSONALLY VERIFIED ITS CONTENTS
AND ENTERED THE ANALYZED VALUE INTO YOUR DIVE
COMPUTER! Failure to verify cylinder contents and enter the
appropriate O2% into your dive computer will result in incorrect
dive planning information.
DO NOT DIVE WITH A GAS IF YOU HAVE NOT PERSONALLY VERIFIED ITS CONTENTS AND ENTERED THE
ANALYZED VALUE INTO YOUR DIVE COMPUTER! Failure
to verify cylinder contents and enter the appropriate gas values
where applicable into your dive computer will result in incorrect
dive planning information.
Diving with gas mixtures exposes you to risks that are different
from those associated with diving with standard air. These
risks are not obvious, and require training to understand and
avoid. Risks include possible serious injury or death.
WARNING
Traveling to a higher elevation can temporarily cause a change
in the equilibrium of dissolved nitrogen in the body. It is recommended that you acclimatize to the new altitude by waiting at
least three hours before diving.
WARNING
WARNING
WARNING
WARNING
WHEN THE OXYGEN LIMIT FRACTION INDICATES THAT
THE MAXIMUM LIMIT IS REACHED, YOU MUST IMMEDIATELY TAKE ACTION TO REDUCE OXYGEN EXPOSURE.
Failure to take action to reduce oxygen exposure after the
warning is given can rapidly increase the risk of oxygen toxicity, injury, or death
Suunto recommends that you receive training in Free diving
techniques and physiology before conducting breath hold
dives. No dive computer can replace the need for proper dive
training. Insufficient or improper training may cause a diver
to commit errors that may lead to serious injury or death.
If there are several divers using the dive computer with wireless transmission, always ensure that each diver is using a
different code before starting the dive.
Personal adjustment setting P0–P-2 causes a high risk of
DCI, or other personal injury, and death.
17
WARNING
Using the Suunto Dive Planner software is not a substitute
for proper dive training. Diving with mixed gases has dangers
that are not familiar to divers diving with air. To dive with trimix,
triox, heliox and nitrox or all of them, divers must have specialized training for the type of diving they are doing.
WARNING
WARNING
CAUTION
18
Always use realistic SAC rates and conservative turn pressures during dive planning. Overly optimistic or erroneous
gas planning can result in the exhaustion of breathing gas
during decompression or in a cave or a wreck.
ENSURE THE WATER RESISTANCE OF THE DEVICE!
Moisture inside the device and/or battery compartment may
seriously damage the unit. Only an authorized SUUNTO service center should do service activities.
Never lift or carry your cylinder by holding the wireless tank
pressure transmitter as this may break the cover and cause
flooding of the unit. If your cylinder falls down with the transmitter attached to the regulator first stage, ensure that the
transmitter has not been damaged before diving with it.
NOTE
It is not possible to change to AIR mode after a dive in MIXED
mode, before the No-fly time has elapsed.
When planning both air and mixed gas dives during the same
dive series, you should set the instrument in MIXED mode
and modify the gas mix accordingly.
NOTE
In GAUGE mode the no-fly time is always 48 hours.
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3. SUUNTO USER INTERFACE
Safety Stop Indicator
No-Fly Icon
Date
Dual Time
Maximum Depth
O
2
/He% (Mixed Mode)
Time
Tank Pressure
Dive Alarm Indicator
Daily Alarm Indicator
Tank Pressure Bar
Graph
Wireless Transmission
Indicator
Low Battery Warning
Present Depth
Current Time Display
Mode Indicator
No-Decompression Time
Total Ascent Time
Ceiling Depth
Remaining Air Time
Safety/Deep Stop Time
Surface Interval Time
No-Fly Time
Compass Display
Tissue Saturation Graph
Apnea Timer
Diver Attention Symbol
Ascent Rate Bar Graph
Active Water Contact
Indicator
Seconds Display
Stopwatch
Weekday
Dive Time
Temperature
PO
2
% (Mixed Mode)
OLF% (Mixed Mode)
NOTE
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If no button is pressed for 5 minutes, the dive computer beeps
and returns to the TIME mode automatically.
3.1. Navigating in the menus
Suunto D9tx has four main operating modes - TIME mode (TIME), DIVE mode (DIVE),
PLAN mode (PLAN), and MEMORY mode (MEM). It also has a COMPASS submode,
which can be activated from either TIME or DIVE modes, and a APNEA TIMER submode, which can be activated from the TIME mode. To toggle between the main
modes, press the MODE button. To select a submode in DIVE and MEM modes, press
the UP/DOWN buttons.
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SETTINGS
Alarm
Time
Dual Time
Date
Units
Backlight
Contrast
Tones
SUB-MODES
Air
Mixed
Gauge
Free
Off
SETTINGS
Gases
Personal/Altitude
Tank Press Pairing
Tank Press Alarm
Depth Alarm
Depth Notify Alarm
Dive Time Alarm
Surface Time Notify Alarm
Sample Rate
Deepstop
Units
TIME DIVE PLAN MEM
SETTINGS
Calibrate
Declination
Timeout
COMPASS
SUB-MODES
Logbook
History
LIGHT LIGHT LIGHT LIGHT
SETTINGS
Ventilation
Increment
Repeats
APNEA TIMER
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3.2. Button symbols and functions
The table below explains the main functions of the dive computer's buttons. The buttons
and their use is explained in more detail in the relevant sections of the user's guide.
Table 3.1. Button symbols and functions
Main functionsPressButtonSymbol
ShortMODE
LongMODE
Switch between main modes
Switch from submode to main mode
Activate backlight in DIVE mode
Activate backlight in other modes
Activate stopwatch in DIVE mode
ShortSELECT
Select a submode
Select and accept settings
Select stopwatch to stop or start in DIVE mode
Displays Day History in FREE mode (free dive mode)
Activate compass in TIME and DIVE modesLongSELECT
23
Main functionsPressButtonSymbol
ShortUP
LongUP
Toggle between alternative displays
Change submode
Increase values
Activate gas switching in MIXED mode
Activate Apnea Timer in TIME mode
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ShortDOWN
LongDOWN
Toggle between alternative displays
Change submode
Decrease values
Enter Setting mode
Toggle between ceiling and remaining air time display
4. GETTING STARTED
BETWEEN DIVES YOU
CAN CHECK YOUR SURFACE
INTERVAL TIME FROM THE
TIME MODE SHORTCUTS!
To get the most out of your Suunto D9tx, use some time to personalize it and really
make it YOUR computer. Set the correct time and date, as well as the alarms and
tones, unit and backlight settings. Then, calibrate and test the compass function.
Suunto D9tx is a very user-friendly dive computer, and you will quickly become familiar with its functions. Make absolutely sure that you know your computer and have it
set up as you want it BEFORE getting into the water.
4.1. TIME mode settings
The first thing to do with your Suunto D9tx is to set the TIME mode shortcuts: the time,
alarm, dual time, date, units, backlight, contrast, and tones.
The figure below shows how to toggle between different shortcuts in the TIME mode:
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NOTE
USE UP AND DOWN BUTTONS
TO TOGGLE BETWEEN ALARM, TIME,
DUAL TIME, DATE, UNITS, CONTRAST
AND TONES.
The seconds display reverts to date display after 5 minutes
in order to save battery power.
NOTE
The display is illuminated by holding down the MODE button
for more than 2 seconds.
Now that after you know how to toggle between the shortcuts, you can start to set
them.
The figure below shows how to enter the TIME Settings menu.
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4.1.1. Setting the alarm
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
The dive computer has a daily alarm function. The alarm can be set to be activated
only once, on weekdays or every day. When the daily alarm activates, the screen
blinks and the alarm sounds for 60 seconds. Press any button to stop the alarm.
4.1.2. Setting the time
In the Time setting mode, you are able to set the hour, minute, and second, as well
as choose between a 12 and 24 hour display.
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4.1.3. Setting the dual time
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
In the Dual Time setting mode, you are able to select the hour and minute of a dual
time, which is useful when traveling to a different time zone.
4.1.4. Setting the date
In the Date setting mode, you are able to set the year, month, and day. The day of
the week is automatically calculated in accordance with the date. In metric units the
date is presented as DD/MM, and in imperial units as MM/DD.
4.1.5. Setting the units
In the Units setting mode, you are able to choose whether the units are displayed in
either the metric or imperial system (meters/feet, Celsius/Fahrenheit, and so on).
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ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
4.1.6. Setting the backlight
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
In the Backlight setting mode, you are able to turn the backlight ON or OFF and to
define how long it stays on for (5, 10, 20, 30, or 60 seconds).
NOTE
When the backlight is turned OFF, it does not illuminate when
an alarm sounds.
4.1.7. Setting the contrast
In the Contrast setting mode, you are able to set the contrast of the display (the value
range is between 0 and 10).
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ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
4.1.8. Setting the tones
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
In the Tones setting mode, you are able to activate or deactivate the tones.
NOTE
When the tones are off, there are no audible alarms.
4.2. Stopwatch
The Stopwatch function in Suunto D9tx measures elapsed and split times.
A separate stopwatch (dive timer) can also be used in the DIVE mode. For more in-
formation, refer to Section 6.1.6. Stopwatch (Timer).
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USE DOWN BUTTON TO START STOPWATCH
AND TAKE A SPLIT TIME. THE UP BUTTON STOPS THE
STOPWATCH. IF YOU HAVE TAKEN SPLIT TIMES, YOU CAN
SCROLL THEM BY SHORT PRESSING THE UP BUTTON.
LONG PRESSING UP RESETS THE STOPWATCH.
4.3. AC water contacts
AC APPEARS IN THE TOP RIGHT
CORNER OF THE DISPLAY, WHEN THE DIVE
COMPUTER IS IN CONTACT WITH WATER.
THIS ALSO ACTIVATES THE DIVE MODE.
The water and data transfer contact is located on the side of the case. When submerged, the water contact poles are connected by the conductivity of the water and
the “AC” symbol appears on the display. The AC text is shown until the water contact
deactivates.
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