Hollis TX1 He Operating Manual

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TX1 He OPERATING MANUAL

TX1 He

DIVE COMPUTER

OPERATING MANUAL

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TX1 He OPERATING MANUAL

CONTENTS

WELCOME.........................................................................................4

WARNINGS........................................................................................5

NOTICES............................................................................................6

FCC ID................................................................................................6

FEATURES & FUNCTIONS............................................................7

ABBREVIATIONS/TERMS......................................................8

DISPLAY ICONS.......................................................................9

CONTROLS..............................................................................10

BUTTON NAVIGATION.........................................................11

ACTIVATION...........................................................................12

MENU SYSTEM......................................................................12

Navigating Menus.....................................................................12

AUDIBLE ALARM..................................................................13

PC INTERFACE.......................................................................14

POWER SUPPLY.....................................................................14

Battery Icon..........................................................................14

BATTERY STATUS..................................................................14

TX1 He LOW BATTERY WHILE ON SURFACE..............15

TX1 He LOW BATTERY DURING DIVE...........................15

TMT (TRANSMITTER) LOW BATTERY...........................15

OPERATING MODES.............................................................15

TRANSITION PERIOD..........................................................16

POWER SAVER MODE (PSM).............................................16

NORM SURFACE MODES............................................................17

NORM SURF MAIN................................................................18

NORM SURF ALT SCREENS................................................18

NORM MENU..........................................................................19

GAS MENU..............................................................................19

FLY/DESAT...............................................................................19

Fly/Desat Screen....................................................................20

PLAN MENU............................................................................20

Time Limits...........................................................................20

Depth Limits..........................................................................20

NORM/GAUGE LOG.............................................................21

Log Menu............................................................................21

SET MENU...............................................................................22

OP (OPERATING) MODE.....................................................22

HISTORY (NORM/GAUGE)..................................................23

TX1 He ID.................................................................................23

BATT/TMT...............................................................................23

DIVE PREVIEW......................................................................23

GAS SUB MENUS....................................................................24

GAS SWITCH MENU.......................................................24

SELECT GASES MENU...................................................25

SET GASES.........................................................................26

TRANSMITTERS

SET TRANSMITTER MENU....................................27

SET SERIAL NUMBER (CODE) SCREEN.............27

SET GROUPS

SET A (ALARMS)..............................................................28

SET U (UTILITIES)...........................................................29

SET SAFETY STOP....................................................29

SET GF (GRADIENT FACTOR)...............................30

SET T (TIME/DATE)........................................................31

SET S (SHORTCUT).........................................................31

SET D (DIVE MAIN)........................................................32

SET P (PREVIEW)............................................................33

DIVE MODE FEATURES...............................................................34

PROXIMITY OF THE TMTS AND TX1 He........................35

Link Interruption Underwater............................................35

WET ACTIVATION.................................................................36

SMARTGLO® BACKLIGHT.................................................36

BAR GRAPHS..........................................................................36

TLBG.........................................................................................36

VARI..........................................................................................36

ALGORITHM..........................................................................37

GRADIENT FACTOR (GF)...................................................37

DEEP STOP (DS).....................................................................37

SAFETY STOP (SS).................................................................38

DIVE TIME REMAINING (DTR).........................................38

No Deco DTR (NDC)........................................................38

O2 Time Remaining (OTR).............................................39

GAS TIME REMAINING (GTR)..........................................39

GTR Alarm........................................................................39

TOTAL ASCENT TIME (TAT)..............................................40

NORM DIVE OP MODE................................................................41

NORM DIVE SCREENS.........................................................42

DEEP STOP PREVIEW...........................................................43

DEEP STOP MAIN..................................................................43

SAFETY STOP MAIN.............................................................43

DECOMPRESSION.................................................................44

DECO CEILING VIOLATION (DCV).................................44

DELAYED DECO VIOLATION (DDV)................................45

DEPTH VIOLATION (DV)....................................................45

GAS SWITCH WARNING.....................................................46

HIGH PO2................................................................................46

LOW PO2.................................................................................46

HIGH 02 SATURATION.........................................................47

VIOLATION GAUGE MODE (VGM)..................................48

NORM DIVE MAIN MENU

Gas Switch...........................................................................48

Isobaric Counter Diffusion (ICD) Warning.....................48

Select Gases.........................................................................48

Depth Limits........................................................................49

Current END (w/O2 NARC Yes/No) WOB......................49

Deco Stops............................................................................50

Batt/TMT............................................................................50

GAUGE OP MODE.........................................................................51

GAUGE SURF SCREENS.......................................................52

GAUGE MENU

SWITCH TMT...................................................................53

FLY......................................................................................53

LOG.....................................................................................53

SET MENU.........................................................................53

OP MENU...........................................................................53

HISTORY............................................................................53

TX1 He ID...........................................................................53

BATT/TMT STATUS.........................................................53

DIVE PREVIEW.................................................................53

SWITCH TMT SUB MENU

GAUGE TMT SWITCH....................................................54

SEARCHING FOR TMT..................................................54

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TX1 He OPERATING MANUAL

SET GROUPS

SET A (ALARMS)..............................................................54

SET U (UTILITIES)...........................................................54

SET T (TIME/DATE)........................................................54

SET S (SHORTCUT) MENU............................................55

SET D (DIVE MAIN) MENU...........................................55

SET P (PREVIEW) MENU...............................................56

GAUGE DIVE SCREENS.......................................................57

GAUGE DIVE MAIN..............................................................57

GAUGE DIVE ALT..................................................................57

GAUGE CHANGE TMT SCREENS.....................................58

GAUGE TMT SWITCH..........................................................58

SEARCHING FOR TMT........................................................58

GAUGE DEPTH VIOLATION...............................................58

COMPASS MODE...........................................................................59

COMPASS DISPLAY ICONS.................................................60

OVERVIEW..............................................................................61

COMPASS MENU...................................................................61

NORTH OP MAIN...........................................................61

REFERENCE OP MAIN.................................................62

REFERENCE MENU......................................................62

Set Reference Heading.................................................62

CALIBRATION................................................................63

DECLINATION................................................................64

ALARMS...........................................................................64

REFERENCE....................................................................................65

PC INTERFACE.......................................................................66

PC REQUIREMENTS.............................................................66

CARE AND CLEANING.........................................................67

INSPECTIONS AND SERVICE.............................................67

BATTERY REPLACEMENT..................................................68

Battery Retention..............................................................68

Battery Cover Removal....................................................68

Battery Removal...............................................................68

Inspection...........................................................................69

TX1 He Battery Installation............................................69

Testing................................................................................70

TRANSMITTER BATTERY REMOVAL.............................70

TRANSMITTER BATTERY INSTALLATION...................70

Installing A Transmitter On A Regulator.......................71

Transmitter Compatibility With Nitrox.........................71

ALTITUDE SENSING AND ADJUSTMENT.......................71

RESET DURING A DIVE.......................................................71

WRIST STRAP.........................................................................72

Strap Removal...................................................................72

Strap Replacement...........................................................72

Adjusting the Shock Cord Version.................................73

TECHNICAL DATA................................................................74

Specications.....................................................................75

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TX1 He OPERATING MANUAL

Welcome to Hollis Gear

and

THANK YOU

for choosing the

TX1 He.

The TX1 He was designed to create a user friendly dive computer that allows the use of Air, Nitrox, and Trimix. It is a powerful instrument indeed - with a digital compass, gauge mode, use of up to six transmitters, Gradient Factors, Hollis Dive Planning Software, and many more features to be discussed within. It is a tool that will open up many underwater activities to the user.

With the use of the included Hollis Dive Planning Software and data cable, all of the TX1 He's potential dives can be explored. It is a valuable tool to plan contingencies and gas requirements. One can also use the software as a learning tool, exploring

different gas choices, proles, and options.

It is imperative to fully understand all the features and functions before pushing to the limits of the TX1 He. Reaching one's own limits is more likely before reaching the TX1 He's. For this reason, do not neglect the need for proper knowledge, training, skill, and experience before venturing into new territory. No computer can replace those attributes.

We at Hollis wish you the best in your diving adventures.

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TX1 He OPERATING MANUAL

! WARNINGS !

Pay special attention to items marked with this Warning symbol.

If your TX1 He stops working for any reason while operating, it is important that you have anticipated this possibility and are prepared for it. This is an important reason for not pushing the tables, oxygen exposure limits, and a critical reason to avoid entering decompression, without proper training. If you dive in situations where your trip would be ruined or your safety would be jeopardized by losing the use of your TX1 He, a backup instrument system is highly recommended.

It is extremely important that you read this manual and understand completely before attempting to use your new Hollis dive computer.

Each numeric and graphic display represents a unique piece of information. It is imperative that you understand the formats, ranges, and values of the information represented to avoid any possible misunderstanding that could result in error.

Hollis PDCs are NOT for use by commercial divers.

Hollis PDCs are intended for use by divers who have successfully completed a recognized course in SCUBA diving, and have knowledge of the potential risks and hazards of SCUBA diving.

As with all underwater life support equipment, improper use or misuse of Hollis PDCs can result in serious injury or death.

If you do not fully understand how to use the PDC, or if you have any questions, you should seek instruction in its use from your Authorized Hollis Dealer before diving with it.

Remember that technology is no substitute for common sense, and a PDC only provides the person using it with data, not the knowledge to use it. Remember also that the PDC does not actually measure and test the composition of your body tissue and blood. Using an Hollis PDC, just as using the U.S. Navy (or other) Decompression Tables, is no

guarantee of avoiding decompression sickness. Every diver’s physiology is different, and can even vary from day to day. No machine can predict how your body will react to a particular dive prole.

Never share or exchange a dive computer with another diver, or use another dive computer for a repetitive dive.

Special training, equipment, and support are necessary for diving deeper than the maximum recommended depth limit for recreational diving, generally agreed to be 130 FT (39 M) by most diving instruction authorities.

Decompression diving is inherently hazardous and greatly increases your risk of decompression sickness, even when performed according to the PDC's calculations.

Oxygen features are intended for use by divers who have successfully completed a recognized course in diving with enriched nitrogen-oxygen (Nitrox) mixtures, and have knowledge of the potential risks and hazards of diving with Nitrox. Maximum limits for exposure to oxygen should not be exceeded, and the consequences of CNS (Central Nervous System) Oxygen Toxicity and Pulmonary Oxygen Toxicity can be deadly.

Helium features are intended for use by divers who have successfully completed a recognized course in diving with Trimix mixtures, and have knowledge of the potential risks and hazards of diving with Trimix.

Diving at high altitude requires special knowledge of the variations imposed upon divers, their activities, and their equipment by the decrease in atmospheric pressures. Hollis recommends completion of a specialized Altitude training course by a recognized training agency prior to diving in high altitude lakes or rivers.

Repetitive dives in a series should only be conducted at the same Altitude as that of the rst dive of that series.

Repetitive dives made at a different Altitude will result in an error equal to the difference in barometric pressure, and possibly a false dive mode with erroneous data.

If an Hollis PDC is activated at an elevation higher than 14,000 feet (4,270 meters), it will immediately shutdown or revert to Watch Mode.

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TX1 He OPERATING MANUAL

NOTICES

LIMITED TWO-YEAR WARRANTY

For details, refer to the Product Warranty Registration Card provided.

This operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from HOLLIS/2002 Design.

TX1 He Operating Manual, Doc. No. 12-4101

San Leandro, CA USA 94577

TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE

HOLLIS, the HOLLIS logo type, TX1 He, the TX1 He logo, Gas Time Remaining (GTR), Diver Replaceable Batteries, Graphic Diver Interface, Tissue Loading Bar Graph (TLBG), Pre-Dive Planning Sequence (PDPS), SmartGlo, Set Point, Control Console, Turn Gas Alarm, and HOLLIS

Computer Interface (HCI) are all registered and unregistered trade-marks, trade names, and service marks of HOLLIS. All rights are reserved.

PATENT NOTICE

U.S. Patents have been issued to protect the following design features: Dive Computer with Wireless Data Transmission (U.S. Patent no. 7,797,124), Air Time Remaining (U.S. Patent no. 4,586,136 and 6,543,444) and Data Sensing and Processing Device (U.S. Patent no. 4,882,678). Set NIBG Alarm and other patents pending. User Setable Display (U.S. Patent no. 5,845,235) is owned by Suunto Oy (Finland).

DECOMPRESSION MODEL

The program within the TX1 He simulates the absorption of inert gases into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of experiences. The TX1 He dive computer model is based upon the latest research and experiments in decompression theory. Still, using the TX1 He, just as using the U.S. Navy (or other) No Decompression Tables, is no guarantee

of avoiding decompression sickness, i.e. “the bends”. Every diver’s physiology is different, and can even vary from day to day. No machine can predict how your body will react to a particular dive prole

FCC COMPLIANCE:

This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1.) This equipment may not cause harmful interference. 2.) This equipment must accept any interference received, including interference that may cause undesired opera-

tion.

FCC INTERFERENCE STATEMENT:

This equipment has been tested and found to comply with the limits for an Intentional Radiator, a Class B Digital Device, pursuant to Part 15 of FCC Rules, Title 47 of the Code of Federal Regulations. These rules are designed to provide reasonable protection against harmful interference in a commercial or residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio communications.

There is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be deter-mined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician.

! WARNING: Changes or modication to this unit not expressly approved by HOLLIS/2002 Design could void the

user's authority to operate the equipment.

FCC ID: MH8A

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TX1 He OPERATING MANUAL

FEATURES/FUNCTIONS

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ABBREVIATIONS/TERMS

ACTIV = Activation AL = Alarm ALT = Alternate ATA = Standard Atmosphere (unit) AUD = Audible AVAIL = Available BATT = Battery CAL = Calibrate (compass) CDT (CD) = Countdown Timer DCS = Decompression Sickness DECO = Decompression DESAT = Desaturation Time DFLT = Default DTR = Dive Time Remaining DURA = Duration (backlight) E = East (compass) EDT = Elapsed Dive Time EL = Elevation (altitude) END = Equivalent Narcotic Depth FHe = Fraction of Helium (%) FO2 = Fraction of Oxygen (%) FORM = Format (date, time) FT = Feet (depth) GAUG = Digital Gauge Dive Mode GF = Gradient Factor GLO = Glow (backlight) GTR = Gas Time Remaining HCI = Hollis Computer Interface HIST = History HT = Hypoxic Threshold LO = Low (battery) M = Meters (depth)

TX1 He OPERATING MANUAL

MIN = Minutes (time) MOD = Maximum Operating Depth N = North (compass) NDC = No Deco DTR NDL = No Deco Limit NE = Northeast (compass) NO = Number NORM = Normal Dive Mode NW = Northwest (compass) O2 = Oxygen OTR = O2 DTR PDC = Personal Dive Computer PO2 = Partial Pressure of O2 (ATA) PRESS = Pressure PSM = Power Saver Mode REF = Reference (compass) S = South (compass) SAFE = Safety (stop) SE = Southeast (compass) SEC = Seconds (time) SN = Serial Number SURF = Surface SW = Southwest (compass) SWCH = Switch (gas) TAT = Total Ascent Time (deco) TLBG = Tissue Loading Bar Graph TMR = Timer TMT = Transmitter VIOL = Violation W = West (compass) WOB = Work Of Breathing

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TX1 He OPERATING MANUAL

DISPLAY ICONS

Dot Matrix

PO2

BAR

PSI

FTM

SURF

GTR

TAT

min

1 Low Battery Indicator p. 15 2 Log p. 21 3 Value is Time 4 Depth ID (units) p. 29 5 Surface Interval p. 16 6 TMT Link p. 27, 35

7 Value is PO 8 Pressure ID (units) p. 29

9 Temperature or Heading p. 18, 60 10 Time is Minutes 11 Total Ascent Time p. 40 12 Gas Time Remaining p. 39

p. 46

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TX1 He OPERATING MANUAL

CONTROLS

FTM

SURF

TLBG

PO2

BAR

PSI

GTR

VARI

TAT

min

BUTTONS

The TX1 He utilizes 3 Control Buttons that allow you to select mode options and access specic information.

They are also used to link the Transmitter(s), enter Settings, activate the Backlight, and acknowledge the Audible Alarm. Throughout this manual they will be referred to as the M, A, and S buttons.

Pressing different combinations of these buttons will navigate through different menus and options of the TX1 He. The symbols in the table below will illustrate how to proceed through the menus.

SYMBOL MEANING

PRESS THE BUTTON, LESS THAN 2 SECONDS, THAT THE INDEX FINGER POINTS TO.

HOLD BUTTON, GREATER THAN 2 SECONDS, THAT THE INDEX FINGER POINTS TO.

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BUTTON NAVIGATION

PRESS

TAP

ACTION BUTTON FUNCTION

Press Button Any Activate TX1 He

FTM

SURF

TLBG

PO2

BAR

PSI

VARI

GTR

TAT min

TX1 He OPERATING MANUAL

• to access Menu

• to scroll up the screen (backward) through Menu selections

FTM SURF

• to return to Surface Main

TLBG

PO2

BAR

PSI

HOLD

TLBG

PO2

BAR

PSI

TLBG

PO2

BAR

PSI

VARI

GTR

TAT min

FTM SURF

VARI

GTR

TAT min

FTM SURF

VARI

GTR

TAT min

• to scroll down the screen (forward) through Menu selections

• to scroll fast through set points

HOLD

FTM SURF

TLBG

PO2

BAR

PSI

TLBG

PO2

BAR

PSI

VARI

GTR

TAT min

FTM SURF

VARI

GTR

TAT min

HOLD

• to select, save, or access, an item that is ashing or indicated

by an arrow icon (>)

• to activate Backlight

• acknowledge alarms (while diving)

• to step back from a Menu to a previous screen, Menu, or

Menu item

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TX1 He OPERATING MANUAL

ACTIVATION

To activate the TX1 He, press/release any button.

• The unit will enter Diagnostic Mode displaying all segments of the LCD as 8's, followed by dashes ( - - ), then a countdown from 9 to 0. It checks the display and voltage to ensure that everything is within tolerance.

• It will also check ambient barometric pressure, and calibrate present depth as 0. When at 3001 feet (916 meters), or higher, it will adjust depth for the higher altitude.

• After the Diagnostic check, a MY INFO screen will be displayed for 10 sec. showing a default message, or information that you enter using the PC interface system.

• The NORM Surface Main screen will then be displayed, allowing access to all surface functions.

• If no dive is made within 2 hours, the unit will shut Off. Also see PSM (Power Saver Mode) on page 16. Contacts located on the stems of the buttons and pins of the PC Data Port will automatically activate the unit and cause it to enter dive mode when the contacts become wet and it senses depth of 5 FT (1.5 M). They will not inadvertently activate Surface Mode such as when in a wet gear bag.

MENU SYSTEM

The Dot Matrix located in the middle of the LCD viewing area is used to display alpha numeric messages and measured values as well as Menu type systems for selection of settings and various auxiliary functions. It also serves as the Digital Compass which can be accessed while viewing Main screens.

FTM

SURF

TX 1

DIAGNOSTICS

TLBG

PO2

BAR

PSI

Diagnostic Check

(for 3 seconds then My Info)

(PZ+)

USE OCEANLOG

PC PROGRAM TO

ENTER YOUR DATA

TLBG

PO2

Default Message

(for 10 seconds then Surf Main)

FTM

SURF

VARI

GTR

TAT

min

GTR

TAT

min

There are multiple Menus such as -

• NORM Main Menu

• GAUGE Main Menu

• Compass Menu

• Compass Reference Menu

• Set Gases Menu

• Set Alarms Menu

• Set Utilities Menu

• Set Time Menu

• Set Shortcut Menu

• Set Dive Main Menu

• Set Preview Menu

Upon entering a Menu, movement through it starts at the rst (top) selection, then

continues in a rolling manner down the screen showing selections in groups of up to 4 items.

Navigating Menus > >

• Right Arrow icon ( > ) at the left indicates that the item can be selected.

• Down Arrow icon ( v ) at the right indicates that additional items are available below (after) those shown.

• Up Arrow icon ( ^ ) at the right indicates that additional items are available above (before) those shown.

This item can be selected (accessed).

(PZ+)

FTM

SET GF O2 NARC GLO DUR >SAMPLE

TLBG

PO2

BAR

SURF

30-80 YES 15 SEC 60 SEC

PSI

GTR TAT

min

There are more items above.

There are more items below.

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TX1 He OPERATING MANUAL

AUDIBLE ALARM

While operating in NORM or GAUGE Mode the Audible will emit 1 beep per second for 10 seconds when alarms strike, unless it is set Off. During that time, the Audible can be acknowledged and silenced by pressing the S button (less than 2 seconds).

An LED Warning Light, on the housing, is synchronized with the Audible and ashes as the Audible sounds. It will

turn Off when the Alarm is silenced. The Audible and LED will not be active if the Audible is set OFF (a group A setting).

Alarms that strike during operations in Compass Mode are described on page 64.

Situations that will activate the NORM/GAUGE 10 second Alarm include -

* Items apply only in NORM mode.

• Gas Time Remaining (GTR) at 5 minutes, then again at 0 minutes.

• Tank Pressure at the Set Point selected.

• Descent deeper than the Depth Alarm Set Point selected.

• Dive Time Remaining at the Set Point selected*.

• Elapsed Dive Time at the Set Point selected.

• PO2 level greater than PO2 max*.

• Low PO2 Warning (0.17 ≤ PO2 < 0.21) and Low PO2 Alarm (PO2 < 0.17)

• O2 accumulation at 240 OTU (80%), then again at 300 OTU (100%)*.

• TLBG at the Set Point selected*.

• Ascent Rate exceeds 60 FPM (18 MPM) when deeper than 60 FT (18 M), or 30 FPM (9 MPM) at 60 FT (18 M) and shallower.

• Loss of the active Transmitter Link signal for more than 15 seconds during a dive.

• Entry into Decompression Mode (Deco)*.

• Missed Deco Warning (depth is shallower than the deepest prescribed Stop Depth for < 1 minute)*.

• Missed Deco Alarm (depth is shallower than the deepest prescribed Stop Depth for > 1 minute)*.

• Deco Ceiling Violation (Gradient Factor value > 90 for < 5 minutes)*.

• Delayed Deco Violation (Gradient Factor value > 90 for ≥ 5 minutes)*.

• Depth Violation (Depth > 400 FT/120 M in NORM, > 400 FT/120 M in GAUGE).

A single short beep (which cannot be disabled) sounds when -

• After 5 minutes on the surface after the Violation dive.

3 short beeps (which cannot be disabled) sound when -

• Ascent Rate is 51 to 60 FPM (15.1 to 18 MPM) when deeper than 60 FT (18 M), or 26 to 30 FPM (7.5 to 9 MPM) at 60 FT (18 M) and shallower.

During the following situations, the audible will not turn off when acknowledged -

• Delayed Deco Violation

• Depth Violation

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TX1 He OPERATING MANUAL

TAP

PC INTERFACE

Interface with a PC, to allow uploading settings and downloading data, is accomplished by connecting the TX1 He to a PC USB Port using the special USB Interface Cable.

The software program together with the USB Driver required is on the HCI (Hollis Computer Interface) CD, and can be downloaded from the Hollis web site. The program's HELP* serves as the user manual which can be printed for personal use.

*Prior to attempting to Download data from your TX1 He or Upload Settings to it, review the HELP section of the HCI program. It is recommended to print those sections of HELP that you consider appropriate for your Interface activities.

The Settings Upload portion of the HCI program can be used to set/change the Set A group (Alarms), Set U group (Utilities), Set T (Time), etc. using the same Interface System. FO2 and FHe related items must be set using the control buttons.

Information available for retrieval (download) from the TX1 He to the PC Download portion of the program includes dive data such as number, surface interval time, maximum depth, elapsed dive time, no deco status, pres-

sure, start date/time, lowest temperature under water, sampling rate, dive prole, and Set Points.

The HCI program also allows upgrade of select versions of the TX1 He's rmware (operating system software) af-

ter which the TX1 He resets all operating data. Since the upgrades require reset of the TX1 He, they are blocked during 24 hours after dives.

• Refer to page 66 for more details relating to HCI and PC Interface.

POWER SUPPLY

• TX1 He Battery >> (1) 3 vdc, CR2450, Lithium.

• Shelf life >> up to 5 years.

• Use life >> 100 dive hours if (1) 1 hour dive per dive day up to 300 dive hours if (3) 1 hour dives per dive day.

• Transmitter (each) >> (1) 3 vdc, CR2, .75 Ahr, Lithium.

• Use life >> 300 dive hours if (2) 1 hour dives per dive day.

• Replacement >> by user (annual recommended).

Battery Icon (for TX1 He only, does not apply to TMTs):

• Warning >> icon on solid when < 2.75 volts, battery change recommended.

• Alarm >> icon on ashing when < 2.50 volts, change the battery.

BATTERY STATUS

To access, while viewing NORM (or GAUGE) SURF Main >>

Norm Surf Main

(air, dives 0)

PO2

BAR

PSI

DIVE 0

NORM

aır

FTM

SURF

GAS1

GTR TAT

min

Norm Sel Menu Norm Sel Menu

(batt/TMT selected)

(PZ+)

>GAS MENU FLY/DESAT PLAN LOG

TLBG

PO2

BAR

PSI

FTM SURF

GTR TAT min

(PZ+)

HISTORY TX1 ID >BATT / TMT DIVE PREVIEW

TLBG

PO2

BAR

PSI

x 8

Searching Batt/TMT Status

FOR

TMT

FTM

SURF

GTR TAT

min

TX1 BATT GOOD >TMT1 BATT GOOD TMT2 BATT LOW TMT3 NOT AVAIL

TLBG

PO2

FTM SURF

GTR TAT min

SEARCHING

FTM

SURF

BAR

PSI

Wait 5 - 30

seconds

GTR TAT min

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TX1 He OPERATING MANUAL

TX1 HE LOW BATTERY WHILE ON THE SURFACE

≤ 2.75 volts (warning level)

• Backlight is completely disabled.

• Battery icon (shell with inner bar) appears solid.

• If a dive is started, the icon is not displayed on the dive mode screens.

• All functions, including Compass Mode, continue to be available.

≤2.50 volts (Too Low - alarm level)

• Battery icon (shell only) will ash for 5 seconds then the unit shuts off completely.

TX1 HE LOW BATTERY DURING A DIVE

≤ 2.75 volts (warning level)

• Backlight is completely disabled.

• All other functions continue to be available.

• Battery icon is not displayed on the dive mode screens.

• Battery icon (shell with inner bar) appears solid upon entry into Surface Mode.

≤ 2.50 volts (Too Low - alarm level)

• Backlight is completely disabled.

• All other functions continue to be available during the dive.

• Battery icon is not displayed on the dive mode screens.

• Upon surfacing, the Battery icon (shell only) and graphic CHANGE BATTERY ash

for 10 minutes, then the unit shuts off completely.

if Low Batt

NORM

NX 32

PO2

BAR

PSI

Low Battery

Warning

CHANGE BATTERY

NX 36

TLBG

BAR

PSI

Low Battery

(after surfacing)

FTM

SURF

DIVE 0

GAS4

GTR

TAT

min

SURF

GAS5

GTR

TAT

min

TMT(TRANSMITTER) LOW BATTERY

Indication is provided only while on the surface.

≤ 2.75 volts (warning level)

• The graphics TMT# LOW BATTERY appear solid on the Battery Status screen.

• DC functions continue to be available (surface and dive).

≤ 2.50 volts (Too Low - alarm level)

• The graphics TMTx LOW BATTERY alternate with the graphics NORM (or GAUGE) and DIVE xx on the SURF Main screen.

• The graphics TMTx BATTERY and LOW also ash on the Battery Status screen.

• TMT operation continues until Tank Pressure decreases to 50 PSI.

TLBG

(PZ+)

TMT 1

LOW BATTERY

TX 15/45

PO2

BAR

PSI

TMT Low Battery

(Alarm)

FTM

SURF

GAS3

GTR

TAT

min

OPERATING MODES

NORM Mode >> for Air, Nitrox, and Trimix SCUBA activity with up to 6 Gases/6 TMTs.

GAUGE Mode >> for SCUBA activity with up to 6 TMTs.

If no previous dive has been taken within the past 24 hours, NORM is the default mode upon activation with others accessed as described later.

At any time while operating in Surface Modes, operation will enter the Dive Mode selected upon descent to 5 FT (1.5 M) for 5 seconds.

• When Wet Activation is set Off, Dive Mode will only be activated when the unit is rst activated and operating in

a surface mode.

• When Wet Activation is set On, the selected Dive Mode will activate upon descent regardless of whether is acti-

vated and operating rst.

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TX1 He OPERATING MANUAL

TRANSITION PERIOD, upon surfacing:

Operation shifts from Dive Mode to Surface Mode upon ascent to 2 FT (0.6 M) for 1 second; however, Surface mode 'screens' will not be available until a Transition time elapses.

The reason for this is that making a descent during the rst 10 minutes after surfacing from a NORM or GAUGE

dive, is a continuation of that dive.

A descent made after the 10 minute (or 1 minute) interval has elapsed is then considered a new dive.

During the rst 10 minutes after surfacing from a NORM or GAUGE dive, the Dive Main screen will be displayed

with Surface Interval time replacing Current Depth. Dive ALT's can be accessed to view other information pertaining to that dive.

POWER SAVER MODE (PSM)

Once 10 minutes elapse, after the 10 minute (NORM or GAUGE) Transition Period on the surface after a dive, the unit will enter a Power Saver Mode (PSM) which turns the display screen off until a button is pressed at which time it will turn back on.

During the 10 minutes that the screen is off, all operations continue as normal in the background with current updated information displayed as soon as the screen comes on again.

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TX1 He OPERATING MANUAL

NORM

SURFACE MODES

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NORM SURF MAIN, information includes: > SI (hr:min) with Time (clock) and SURF icons; if no dive yet, this is time since activation. > Graphic NORM (operating mode). > Graphic DIVE and number of dives completed during that operating period, up to 24 (0 if no dive made yet). > Tank Pressure (or letters SPG if no TMT) with PSI (or BAR) and Link (speaker) icons, if the Receiver is successfully Linked with an active TMT (Transmitter), 00

ashing after 15 seconds of lost Link.

> Graphic Gas Name: (AIR, NX (FO2) or TX (FO2)/FHe)) and GAS# of the actual gas. > TLBG with icon, if any nitrogen after NORM dives.

NORM SURF ALT SCREENS

Norm Surf Main (nitrox, dives 2)

NORM

NX 32

TLBG

PO2

BAR

PSI

FTM

SURF

DIVE 2

GAS4

GTR

TAT

min

FT MAX

TLBG

Norm Surf

Alt 1

(PZ+)

EDT

232

PO2

BAR

PSI

Norm Surf

Alt 2

(PZ+)

FTM

SURF

GTR TAT

min

12:45

TLBG

PO2

FTM

BAR

PSI

GTR TAT min

Norm Surf

(PZ+)

O2 SAT

45%

NX 32

TX 25/35

TLBG

PO2

BAR

Alt 3

%O2 SAT

PSI

GAS3

GAS5

FTM

SURF

PO2

BAR

PSI

DIVE 0

GAS1

GTR TAT

min

NORM

aır

NORM SURF MAIN

(no dive yet, set for air)

FTM

SURF

GTR

TAT

min

NORM SURF ALT 1, information includes: > SI* (hr:min) with Time (clock) and SURF icons. > Max Depth* with FT (or M) and MAX icons. > Elapsed Dive Time* (hr:min) with graphic EDT. > Graphic LAST, indicating that data is from the dive previously conducted while in NORM mode. *Dashes if no previous dive.

NORM SURF ALT 2, information includes: > Altitude graphic, if EL2 (to EL7), blank if Sea level. > Time of Day (hr:min) with graphic A (or P). > Temperature with ° icon and graphic F (or C).

NORM SURF ALT 3, information includes: > Screen titles O2 and GF. > Current GF value is displayed. > O2 % accumulation (current) with graphic O2 SAT. > PO2 MAX (for active gas) set by the user. > Graphics GAS # and Gas Name: AIR, NX (FO2) or TX (FO2/FHe), for the actual gas.

back to main

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NORM MENU

Selections include: > GAS MENU. > FLY/DESAT. > PLAN. > LOG. > SET MENU. > OP MODE. > HISTORY > TX1 ID. > BATT/TMT > DIVE PREVIEW

Norm Surf Main

(nitrox 32, dives 2)

FTM

SURF

PO2

BAR

PSI

DIVE 2

GAS4

GTR TAT min

NORM

NX 32

TLBG

GAS MENU

The Gas Menu selection provides access to a listing of sub menus that contain items

specic to the selection and use of gases and tranmsitters.

Surf Main Sel Menu

(PZ+)

>GAS MENU FLY/DESAT PLAN LOG

TLBG

PO2

BAR

PSI

to scroll cursor (>)

FTM

SURF

GTR TAT min

to select

downup

Gas Menu, information includes: > Graphics Gas and MENU with selections -

> GAS SWITCH. > SELECT GASES. > SET GASES. > SET TMT.

These gas sub menus are described after the Main Menu items (starting on page 24)

FLY/DESAT

FLY Time is a count down timer that begins counting down 10 minutes after surfacing from a dive from 23:50 to 0:00 (hr:min).

DESAT Time, also a count down timer, provides calculated time for tissue desaturation at sea level taking into consideration the algorithm and gradient factor setting.

DESAT Time also begins counting down 10 minutes after surfacing from a dive, counting down from 23:50 (max) to 0:00 (hr:min).

When the DESAT time reaches 0:00, which will generally occur prior to the FLY count down reaching 0:00, it will remain on the display until the FLY count down reaches 0:00.

> DESAT is not displayed after a Gauge or Violation dive. > Desaturation requiring Times greater than 24 hours will display > 24 HR DESAT. > In the event that Time to Desaturate still remains at the end of 24 hours, the unit is to turn off. Addtionally, any inert gas and O2 calculations are to clear. > When other screens are accessed, the FLY and DESAT countdowns continue in the background.

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Fly/Desat, information includes: > Graphics FLY and DSAT with countdown times (hr:min) and Time (clock) icon, dashes if no dive yet.

PLAN MENU

Selections include: > Time Limits. > Depth Limits.

(PZ+)

FTM

>TIME LIMITS DEPTH LIMITS

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

Time Limits

No Deco Time Limits (NDLs) and O2 Time Limits (OTLs) in Plan Mode are based on the Algorithm with gradients, the FO2 set for the actual gas, FHe set for the actual gas, and residual inert gas (or O2) remaining from previous NORM dives. FO2 and FHe set for other Gases are not used for Plan calculations.

TLBG

(PZ+)

23:50

9:59

PO2

BAR

PSI

FLY/DESAT

FTM SURF

GTR TAT

min

Time Limit screens will sequence through Depths from 30 to 190 FT (9 to 57 M), or the Max Depth that will allow theoretical No Deco Dive Time or OTL of at least 1

minute based upon the previous dive proles in a series of repetitive dives and taking

into account descent and ascent rates of 60 FPM (18 MPM). Depths where the PO2 of the actual gas is > 1.6 shall not be listed.

Time Limits Screen, information includes: > Plan Depth value with FT (or M) icon - from 30 to 190 FT (9 to 57 M) in increments of 10 FT (3 M). > Max Depth allowed with FT (or M) and MAX. > Graphic NDC (or OTL) with Dive Time allowed (min). > Graphics GAS NAME and GAS# for the actual gas. > Depth from 30 to 190 FT (9 to 57 M) in increments of 10 FT (3 M).

Depth Limits

The Depth Limits Screen will help determine what the Maximum Operating Depth (MOD) of the selected gas is. If the actual gas is trimix and the corresponding alarms are turned on (END Alarm, WOB alarm, and HT alarm), this screen will tell you what the depth limits are - in relation to those settings.

Depth Limits, information includes: > Graphic PLAN.

> MOD* (Maximum Operating Depth) - determined by PO₂ settings.

> END** - depth limit where current gas is equal to the set Equivalent Nitrogen Depth (set in Alarms Menu). > WOB** - depth limit where current gas is equal to the set Work Of Breathing (set in Alarms Menu). > HT (Hypoxic Threshold)** - depth where the PO2 of the gas equals 0.21 ATA. > Active gas mix. > Graphics GAS NAME and GAS# for the actual gas > Graphic DPTH.

NOTE: If any value is greater than 400 ft (120 m), 400 ft (or 120 m) shall be displayed. Zero shall be displayed if any calculated value is negative.

(PZ+)

FTM

FT MAX

TX 18/45

TLBG

PO2

BAR

SURF

NDC

GAS3

PSI

TIME LIMITS

* Item applies only for AIR or NX. ** No value shown if that alarm is set

to off.

(PZ+)

FTM

MOD END WOB HT 180 130 97 14 FEET

TX 15/45

TLBG

PO2

BAR

DEPTH LIMITS

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SURF

GAS5

PSI

GTR TAT

min

GTR TAT

min

Page 21

TX1 He OPERATING MANUAL

TAP

NORM/GAUGE LOG

Information from the latest 24 NORM and/or GAUGE dives is stored for viewing. After exceeding 24 dives, the most recent dive is stored while the oldest is deleted.

> Dives are numbered from 1 to 24 starting each time NORM (or GAUGE) Dive Mode

is activated. After 24 hours elapse with no dive, the rst dive of the next period of

operation is #1. > 10 minutes after a dive, the Log screens for all dives stored can be viewed.

If a dive's elapsed time (EDT) exceeds 999 (min), data at the 999 interval is recorded in the Log upon surfacing of the unit.

Log Menu, information includes: > Graphics LOG and MENU with mode (book) icon. > Listing* of dives displaying - - Number (1 to 24), Date, and start Time; or graphics NO DIVES YET if a new unit.

*Up and Down arrows are not displayed at the right due to space limitations.

Log Menu

(PZ+)

FTM

> 1 10.23.09 1:35P 2 10.23.09 9:40A 13 9.16.09 10:28A 24 9.4.09 7:58A

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

TLBG

(PZ+)

FT MAX

285

NX 80

PO2

BAR

Log Data 1

FTM

SURF

EDT

GAS6

PSI

GTR TAT min

(# of Data 2 screens = # of TMT used*)

Log Data 2

(PZ+)

TMT1

PSI START

BAR

PSI

FTM

GTR TAT

min

next TMT

VARI

3000

200 PSI END

TLBG

PO2

previous TMT

O2 SAT

45%

NX 80

TLBG

PO2

(PZ+)

BAR

Log Data 3

SURF

GF MAX

GAS6

PSI

GTR TAT min

back to Log Menu or to Log Data 4

*If no TMTS were active, Log Data 2 screen displays ALL TMTS OFF.

Log Data 1, information includes: > Log (book) icon. > Pre dive Surface Interval (hr:min) with Time (clock) and SURF icons, - : - - if # 1 (no previous dive that period). > Max Depth with graphics FT (or M) and MAX. > Elapsed Dive Time (min) with graphic EDT. > Graphic NORM, GAUG, or VIOL with dive Number.

> TLBG with max segment ashing, others xed up to end of dive accumulation. All ash if Violation. Blank if GAUG.

> VARI, max Ascent Rate sustained for 4 sec. > Graphics GAS NAME and GAS# (gas used at the end of dive).

Log Data 2, information includes: > Log (book) icon. > Graphic SEA (or EL2 - EL7), altitude level of dive. > Graphics TMT#, xxx PSI (or BAR) START, and xxx PSI (or BAR) END, indicating Tank pressures. > Graphics ALL TMTS OFF if no TMTS were active during the dive. > Temperature with ° icon and graphic F (or C), minimum recorded during that dive.

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Log Data 3, (mix gas dive only), information includes: > Log (book icon). > O2 at the end of the dive (2 dashes if VGM or MOD exceeded), with graphic % O2 SAT. >Highest GF during the dive (2 dashed if VGM), with graphic GF MAX > Max level of PO2 achieved with icon. > Graphics GAS NAME and GAS# (gas used at the end of dive).

SET MENU

The Set Menu selection provides access to a listing of sub menus that contain items

specic to NORM and GAUGE modes.

Set Menu, information includes: > Graphics SEt and MENU with selections -

> A - ALARMS. > U - UTILITIES. > T - TIME. > S - SHORTCUT. > D - DIVE MAIN. > P - PREVIEW.

These Set Groups are described after the Main Menu items (starting on page 28).

OP (OPERATING) MODE

This feature allows another Operating Mode to be selected. Select OP Mode, information includes: > Graphics SEL and MODE.

> Graphic NORM, ashing.

> Graphics GAUGE.

(PZ+)

FTM

>NORM GAUGE

TLBG

PO2

to scroll cursor (>)

SURF

BAR

PSI

GTR TAT

min

to select

downup

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HISTORY (NORM/GUAGE)

History is a summary of data recorded during all NORM and GAUGE dives conducted.

History 1 History 2

(PZ+)

FTM

TOTAL 68 DIVES 57 HOURS

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

FT MAX

TLBG

(PZ+)

EDT

232

PO2

BAR

PSI

FTM

GTR TAT min

back to Main Menu

History 1, information includes: > Graphic TOTAL, or NO DIVES YET (if new unit). > Total dives recorded (up to 9999) with graphic DIVES. > Total dive hours recorded (up to 9999) with graphic HOURS. > Graphic HIST.

History 2, information includes: > Graphic SEA (or EL2 to EL7), highest Altitude at which a dive was conducted. > Max Depth recorded with FT (or M) and MAX icons. > Longest dive time (minutes) recorded during a single dive (up to 999 min) with graphic EDT. > Lowest Temperature recorded during a dive with icon and graphic F (or C).

TX1 ID

This information should be recorded and kept, it will be required in the event that your unit requires factory service.

ID (Identication), information includes:

> Graphic TX1 He ID. > Graphic SN with the factory programmed serial number. > Graphic FIRMWARE with 1A (or higher)*, indicating the Firmware revision level currently installed in the unit. > Graphic LCD with 01 (or higher), indicating the Display's revision number.

FTM

TX1 ID

SN 123456

FIRMWARE LCD

TLBG

PO2

BAR

PSI

TX1 ID

GTR TAT

min

*This number will change if the Firmware is updated by factory service or by future download

of revised rmware from the Hollis web site.

BATT/TMT

Access to this selection activates the TX1 He's Receiver, then starts a transmitter search. The battery status of the TX1 He wrist unit and all transmitters can be viewed from the same BATT/TMT Status screen. Refer to pages 24 and 33 for more information.

DIVE PREVIEW

This feature provides quick access to a screen that displays up to 4 settings that can be pre selected* using the Set P Menu.

Preview, information includes: > Graphics Nor and PREV. > Selections* with Set Points entered using that menu.

*If no selections have been made yet, the graphics USE SET P TO SELECT ENTRIES will be displayed.

FTM

TX1 BATT GOOD >TMT1 BATT GOOD TMT2 BATT LOW TMT3 NOT AVAIL

TLBG

PO2

BAR

SURF

PSI

GTR TAT

min

BATT/TMT STATUS

(PZ+)

FTM

GAS1 DEPTH AL SS LAST STOP

TLBG

PO2

BAR

SURF

TX 10/40 150 FT 0N 10 FT

PSI

GTR TAT min

PREVIEW

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GAS SUB MENUS

Information that follows describes the sub menus (GAS SWITCH, SELECT GASES, SET GASES, SET TMT) that are accessed from the Gas Menu.

Overview

> It is not possible to Switch Gas to a gas that has a PO2 < 0.17 at the current depth.

Gas Switch Menu

(PZ+)

FTM

>GAS1 AIR GAS2 O2 GAS3 TX 15/45 GAS4 NX 32

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

Gas Switch Menu, information includes: > Graphic CHNG and GAS. > Graphic Selections GAS # and GAS NAMES

Gas Switch Screen

(gas 2 selected)

(PZ+)

FTM

MOD END WOB HT 317 230 215 13 FEET >CONFIRM YES

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to conrm

to toggle YES/NO

TMT Search Screen

(PZ+)

FTM

TMT 2

BAR

PSI

SURF

GTR TAT min

SEARCHING FOR -

TLBG

PO2

NOTE: Only the available gases (selected in Select Gases Menu) are displayed. If only one gas is selected in the Select Gases Menu, this menu will not be available.

Gas Switch Screen, information includes:

> Graphic CHNG, GAS, and selected gas number 1 - 6. > MOD. > END*. > WOB*. > HT**. > Graphic CONFIRM with selections YES or NO.

* These only display if switching to a trimix gas, and their respective alarms are set on.

** HT only displays if switching to a trimix gas.

TMT (Transmiter) Search Screen

> Only displays if the transmitter is switched to on, see Set TMT section. > Graphic CHNG, GAS, and selected gas number 1 - 6.

> Graphic message SEARCHING FOR - TMT, ashing for 10 seconds.

> Graphic message TMT (1 - 6) NOT AVAILABLE if the transmitter signal is not established within 10 seconds.

PO2 < 0.17 ATA Hypoxic Gas Warning (Mandatory Decline)

Attempting to switch to a gas with a PO2 < 0.17 ATA results in the TX1 He displaying the Hypoxic Gas Decline screen. This message must be aknowledged with the S button. After which, the Gas Switch Menu will display. Then another gas may be selected from the menu.

(PZ+)

FTM

SURF

TMT 2

NOT AVAILABLE

TLBG

PO2

BAR

PSI

TMT SEARCH

(unable to link)

(PZ+)

FTM

PO2<0.17

CANNOT SWITCH

TO HYPOXIC GAS

>DECLINE

TLBG

PO2

BAR

HYPOXIC GAS WARNING

(mandatory decline)

SURF

PSI

GTR

TAT

min

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0.17 ≤ PO2 ≤ 0.21 ATA Hypoxic Gas Warning (Low PO2)

Switching to a 0.17≤ PO2 ≤ 0.21 ATA gas will result in a warning screen. The diver may choose to proceed or not with the gas switch by conrming yes or no.

(PZ+)

FTM

!WARNING! HYPOXIC GAS

>CONFIRM YES

TLBG

PO2

to toggle YES/NO

High PO2 Warning

Switching to a gas with a PO2 > 1.6 ATA, while underwater, will result in a warning screen. The diver may choose

to proceed or not with the gas switch by conrming yes or no.

!WARNING!

PO2>1.6

PO2 > 1.6 ATA

>CONFIRM YES

TLBG

PO2

SURF

BAR

PSI

(PZ+)

BAR

PSI

GTR TAT min

SURF

to select

FTM

VARI

GTR

TAT

min

to select

to toggle YES/NO

Select Gases Menu

Six possible gases may be made available for switching by selecting or deselecting them in this menu.

Information includes: > Graphic SEL and GAS. > Graphic selections Gas# and GAS NAMES > Filled boxes for available gases. > Empty boxes for unavailable gases.

(PZ+)

FTM

>GAS1 AIR GAS2 O2 GAS3 TX 15/45 GAS4 NX 32

TLBG

PO2

to scroll cursor (>)

The current active gas cannot be deselected without switching to another gas in the Gas Switch Menu rst.

SURF

BAR

PSI

GTR TAT min

to select

downup

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Set Gases

This feature provides for the programming of the gas mixtures.

Set Gases Menu

(PZ+)

FTM

>GAS1 AIR GAS2 TX 18/45 GAS3 NX 36 GAS4 NX 50

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

Gas Conrmation (conrming gas 4)

(PZ+)

FTM

MOD END WOB HT 317 160 155 13 FEET >CONFIRM YES

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

Gas Set Screen

(setting gas 1)

(PZ+)

FTM

>PO2 MAX 1.4 FO2 21 FHE 0

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

Set Gas Screen

(active set point ashing)

(PZ+)

FTM

FTM SURF

>PO2 MAX 1.4

>PO2 MAX 1.4 FO2 21

FO2 21 FHE 0

FHE 0

TLBG

PO2

SURF

BAR

PSI

GTR

GTR TAT

TAT min

min

to save set point

alternate (+)alternate (-)

to increase or decrease set point

Set Gas Screen

(PZ+)

FTM

>PO2 MAX 1.4 FO2 21 FHE 0

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

HOLD

to save gas mix

to toggle YES/NO

Set Gas Menu, information includes: > Graphics SET and Gas. > Graphic selections Gas# and GAS NAMES

Gas Set Screen, information includes: > Graphics SET and GAS (1 - 6). > Graphic selections PO2 Max, FO2, FHe.

NOTE: If FHE is set to zero (0) while FO2 < 21, the FO2 shall automatically be reset to 21. If the user tries to decrease the FO2 below 21 while FHe = 0, a warning screen with the message: “CANNOT SET FO2 BELOW 21 WHILE FHE = 0” shall be displayed.

Gas Conrmation Screen, information includes:

> Graphic SET and GAS (1 - 6). > MOD. > END*. > WOB*. > HT**. > Graphic selection YES or NO.

* These only display if the gas is set to a trimix gas, and their respective alarms are set on.

** HT only displays if switching to a trimix gas.

Transmitters

The TX1 He allows up to 6 transmitters to be utilized to monitor tank pressures. The Set TMT menu allows for the programming of the wrist unit to receive signals from transmitters. See the Dive Mode Features section (p. 35) for further information on transmitters.

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Set TMT (Transmitter) Menu, information includes: > Graphics SEt and TMT.

The following graphic selections (last Set Points saved): > TMT 1 - Set Points >> OFF, ON, SET. > TMT 2 - Set Points >> OFF, ON, SET. > TMT 3 - Set Points >> OFF, ON, SET. > TMT 4 - Set Points >> OFF, ON, SET. > TMT 5 - Set Points >> OFF, ON, SET. > TMT 6 - Set Points >> OFF, ON, SET.

NOTE: When using multiple transmitters they should be labeled with their assigned number to avoid confusion.

NOTE: If the TMT is set OFF for the active gas, the letters SPG will be displayed in place of a pressure reading on the Main Screen.

Set TMT Menu

(TMT2, OFF ashing)

(PZ+)

TMT1 ON >TMT2 OFF TMT3 OFF TMT4 OFF

TLBG

PO2

BAR

PSI

to scroll cursor (>)

FTM

SURF

GTR TAT min

to select

downup

(PZ+)

FTM

TMT1 ON >TMT2 OFF TMT3 OFF TMT4 OFF

TLBG

PO2

SURF

BAR

PSI

to toggle ON/SET/OFF

GTR TAT min

to select

nextprevious

Hold M button to return to Surface Main, or hold S button to return to Gas Menu.

Set Serial Number (Code) Screen, information includes: > Graphics SEt and TMT 1 (2, 3, 4, 5, 6)

> Graphic LINK CODE with the serial number (6 digits), the 1st (left) digit ashing.

The serial number can be located in two places directly on the transmitter (see below).

Set Serial Number

(active digit ashing)

(PZ+)

FTM

LINK CODE

TLBG

PO2

SURF

123456

BAR

PSI

GTR TAT

min

to save set point

(+) (-)

to increase or decrease set point

After the sixth digit is saved, the TX1 He will return to the Set TMT Menu.

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SET GROUPS

Information that follows describes the selections contained in the NORM Set Groups (A, U, T, S, D, P) that are accessed from the Set Menu.

SET A (Alarms) Menu, information includes: > Graphics SEt A and MENU.

Selections with their last Set Points saved include:

> AUD with Set Point (ON or OFF), audible. > DEPTH with Set Point (OFF, or 30 to 400 FT, or 10 to 120 M), increments of 10 FT (1 M). > EDT with Set Point (OFF, or 10 to 180 MIN), elapsed dive time, increments of 5 MIN. > TLBG* with Set Point (1 to 4 BAR), increments of 1 BAR. > DTR* with Set Point (OFF, or 1 to 20 MIN), increments of 1 MIN. > TP with Set Point (OFF, or 300 to 3000 PSI, or 20 to 200 BAR), increments of 250 PSI (5 BAR). > END* with Set Point (OFF, 100 to 200 FT, or 30 to 60 M), increments of 10 FT (1 M). > WOB* with Set Point (OFF, 100 to 200 FT, or 30 to 60 M), increments of 10 FT (1 M). > ICD* with Set Point (OFF, ON).

*These items apply to NORM Mode only.

Set A Menu

(PZ+)

FTM

>AUD DEPTH EDT TLBG

TLBG

PO2

SURF

ON 200 FT 60 MIN 4 BAR

BAR

PSI

to scroll cursor (>)

Set Selection

(active set point ashing)

(PZ+)

FTM

>AUD DEPTH

GTR TAT min

to select

EDT TLBG

TLBG

PO2

downup

SURF

ON 200 FT 60 MIN

4 BAR

BAR

PSI

GTR TAT min

to save

next (+) previous (-)

to toggle or increase set point

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TAP

SET U (Utilities) Menu, information includes: > Graphics SEt U and MENU.

Selections with their last Set Points saved include:

> WET ACT with Set Point (ON or OFF) >> wet activation. > UNITS with Set Point (IMP or MET) >> imperial or metric. > DEEP* with Set Point (ON or OFF) >> no deco deep stop. > SAFE* with Set Point** (OFF, TMR, ON) >> no deco safety stop. > SET GF* with Set Point** (CONS 1 - 5 or SET CUSTOM GF) > O2 NARC* with Set Point (YES or NO) > GLO DUR with Set Point (0, 5, 10, or 15 SEC) >> time backlight remains on. > SAMPLE with Set Point (2, 15, 30, or 60 SEC) >> rate data is recorded for PC download. > LAST STOP* with Set Point (10 ft/3m or 20ft/6m)

*These items apply to NORM only. ** Expanded description, following.

Additional information relating to the effects of the items included are described in associated sections throughout this manual.

Set U Menu

(PZ+)

FTM

>WETACT UNITS DEEP SAFE

TLBG

PO2

SURF

ON IMP OFF

BAR

PSI

GTR TAT min

to select

Set Selection

(active set point ashing)

(PZ+)

FTM

>WETACT UNITS DEEP SAFE

TLBG

PO2

SURF

ON IMP OFF

BAR

PSI

GTR TAT min

to save

downup

to scroll cursor (>)

previous (-)

next (+)

to toggle or increase set point

Set Safety Stop, information includes: The Set U menu will display OFF, ON, TMR solid, or SET.

> Select OFF, ON, or TMR: same as above menu

> Select SET (stop depth and time):

Set U Menu

(safe, set ashing)

(PZ+)

FTM

>WETACT UNITS DEEP SAFE

TLBG

PO2

SURF

ON IMP OFF

SET

BAR

PSI

GTR TAT

min

TLBG

Set Selected

(depth ashing)

(PZ+)

FTM

WETACT ON UNITS IMP DEEP OFF >SAFE SET

PO2

SURF

BAR

PSI

GTR TAT

min

to next

(+) (-)

to toggle set point (10, 15, 20 ft) or (3, 4, 5, 6 m)

Set Selected

(time ashing)

(PZ+)

FTM

WETACT ON UNITS IMP DEEP OFF >SAFE SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

to save

(+) (-)

to toggle set point (3 or 5 min)

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Set GF (Gradient Factor), information includes:

TAP

> Graphics SET and GF.

Selections with the last Set Point saved include:

> CONS 1 = GF 90 • 90 > CONS 2 = GF 35 • 90 > CONS 3 = GF 30 • 85 > CONS 4 = GF 25 • 80 > CONS 5 = GF 20 • 75 > SET CUST GF

Set U Menu

(set GF, selected)

(PZ+)

FTM

>SET GF O2 NARC GLO DUR SAMPLE

TLBG

PO2

SURF

30-80 YES 15 SEC 60 SEC

BAR

PSI

GTR TAT

min

Set GF Menu

(PZ+)

FTM

>CONS 1=GF 90 - 90 CONS 2=GF 35 - 90 CONS 3=GF 30 - 85 CONS 4=GF 25 - 80

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to scroll cursor (>)

TX1 He OPERATING MANUAL

to select

downup

Selecting a Custom Gradient Factor:

Set GF Menu

(set custom GF, selected)

(PZ+)

FTM

CONS 5=GF 20 - 75 >SET CUSTOM GF

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

Further information on Gradient Factors can be found in the Dive Mode Features section of this manual.

Custom GF Menu

(PZ+)

FTM

>GF LOW 30 GF HIGH 80

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

downup

to scroll cursor (>)

to select

GF Low or High Selected

(set point ashing)

(PZ+)

FTM

>GF LOW 30 GF HIGH 80

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

(+) (-)

to increase/decrease set point (10 - 90)

to save

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SET T (Time/Date) Menu, information includes: > Graphics SEt t and MENU with Time (clock) icon.

Selections with their last Set Points saved include:

> DATE FORM with Set Point (M.D or D.M) >> date format, M.D = Month.Day, D.M = Day.Month > HOUR FORM with Set Point (12 or 24) >> hour format, 12 = 12: A to 11: P, 24 = 0: to 23: > TIME with Set Point (hr:min) >> 12:01 A to 11:59 P, if 12 Hour Format (or 0:01 to 23:59, if 24 Hour Format). > DATE with Set Point (M.D.Y or D.M.Y) >> Month.Day.Year or Day.Month.Year, arranged by Date Format set:

Set T Menu

(PZ+)

FTM

BAR

PSI

SURF

D.M 12 12:26A

1. 8.12

GTR TAT min

>DATE FORM HOUR FORM TIME DATE

TLBG

PO2

to select

TLBG

Set T Menu

(set point ashing)

(PZ+)

FTM

BAR

PSI

SURF

D.M 12 12:26A

1. 8.12

GTR TAT min

>DATE FORM HOUR FORM TIME DATE

PO2

to save

downup

to scroll cursor (>)

to toggle or increase

next (+) previous (-)

set point

> The left digits of the Time and Date selections will ash rst allowing them to be changed after which the next digits (to the right) ash allowing them to be changed. > TIME (hr:min) >> Hour digits ash, then Minutes. > DATE (m.d.y or d.m.y) >> Year digits ash, then Month, then Day, regardless of their position.

SET S (Shortcut) Menu, information includes: > Graphics SEt S and MENU.

One item can be selected from the following menu list. That item (referred to as a Shortcut) can then be accessed directly by pressing M (2 sec) while viewing the Surface Main.

Selections include: > SELECT GASES. > SET GASES. > LOG MENU. > MY INFO (default Shortcut until another item is selected). > SET HEADING. > SET TIME.

Set S Menu

(PZ+)

FTM

>SELECT GASES SET GASES LOG MENU MY INFO

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

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TAP

SET D (Dive Main) Menu, information includes: > Graphics SEt D and MENU.

The default screen for No Deco dives (except while at Stops) displays Current Depth, NDC time, Pressure, and GTR (gas time remaining). Items such as Max Depth and EDT (elapsed dive time) are displayed on Alternate screens. Set D allows certain items to be added to the Main (moving them from the Alternates).

One item can be selected from the following menu list.

> USE DEFAULT >> no change to the display. > ADD EDT >> adds Elapsed Dive Time also reduces the size of NDC digits. > ADD MAX D >> adds Max Depth, also reduces the size of NDC digits. > ADD EDT + MAX D >> displays NDC, EDT, & Max D with smaller digits. > ADD O2 DATA >> reduces the size of NDC digits & PO2 replaces Pressure (which moves to an Alternate). > ADD GF>> adds Gradient Factor while reducing the size of NDC digits.

Set D Menu

(PZ+)

FTM

>USE DEFAULT ADD EDT ADD MAX D ADD EDT+MAX D

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to select

downup

to scroll cursor (>)

Ensure that the selection to be saved reects information you want to see on the Dive Main, it cannot be changed during the

dive (only while on the surface using this menu).

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TAP

SET P (Preview) Menu, information includes: > Graphics SEt P and MENU.

Using this menu, you can chose up to 4 items (Set Points that have been entered) for display on a Preview screen that can be accessed from the Surface Main Menu (see page 19).

Up to 4 items can be selected from the following menu list.

> GAS 1 SET. > GAS 2 SET. > GAS 3 SET. > GAS 4 SET. > GAS 5 SET. > GAS 6 SET. > DEPTH AL SET. > EDT AL SET. > TP AL SET. > END AL SET. > WOB AL SET > ICD AL SET > DEEP STOP SET. > SAFETY STOP SET. > GF SET > LAST STOP SET > GLO DURA SET. > MAX DEPTH > TMT1 SET > TMT2 SET > TMT3 SET > TMT4 SET > TMT5 SET > TMT6 SET

Set P Menu

(PZ+)

FTM

GAS5 SET GAS6 SET DEPTH AL SET >EDT AL SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

TLBG

to select

Set P Menu

(selected items ash)

(PZ+)

FTM

GAS5 SET GAS6 SET DEPTH AL SET >EDT AL SET

PO2

SURF

BAR

PSI

GTR TAT min

HOLD

to save

Set P Preview

(only selected items display)

(PZ+)

FTM

>GAS5 SET >DEPTH AL SET >EDT AL SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

to Set Menu

or deselect

downup

to scroll cursor (>)

Once 4 items are selected (ashing), another item cannot be toggled to ash until one of the ashing items is toggled to solid.

When satised that those items ashing (up to 4) are what you want for the Preview screen, exit to the Set Menu.

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DIVE MODE

FEATURES

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PROXIMITY OF THE TMTS (TRANSMITTERS) AND TX1 HE

The TMTs emit low frequency signals that radiate out in semicircular patterns parallel to the length dimension of the TMT. A coiled antenna inside the TX1 He wrist unit receives the signals when it is positioned within a zone parallel to or at a 45 degree angle to the TMT as illustrated.

The TX1 He cannot effectively receive a signal when it is held out to the sides of the TMT or held at distances greater than 3 feet (0.91 meters) in front of the TMT. Best reception is achieved when the TX1 He is within less than 3 feet (0.91 meterS) of the TMT.

When installed into the high pressure ports of the Regulator First Stages, the TMTs must be positioned so that they face horizontally outward from the Tank Valves.

Link Interruption Underwater

During a dive, you may at times move the TX1 He out of the signal pattern of the TMT, resulting in a temporary loss of the Link signal. The Link will be restored within 4 seconds after the TX1 He is moved back into its correct position.

An interruption may also occur while the TX1 He is within 3 feet (1 meter) of a run-

ning DPV, or shortly after a Strobe ashes. The Link will be restored within 4 seconds

after the TX1 He is moved out of that area.

If the Link is not restored within 15 seconds, the Audible will sound, and the graphics

LOST TMT, Pressure value, and Link icon will ash until it is restored.

LOST TMT

TLBG

PO2

BAR

LOSS OF LINK

PSI

FTM

NDC

GAS4

GTR

TAT

min

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WET ACTIVATION

The TX1 He is congured with contacts that will automatically activate Dive Mode

when the space between the contacts is bridged by a conductive material (immersed in water) and it senses a Depth of 5 FT (1.5 M).

The contacts are the metal pins of the PC Interface Data Port and the stems of the buttons.

When Wet Activation is set OFF, the TX1 He will not enter Dive Mode unless it is rst

activated by push button and operating in a surface mode or it is a repetitive dive.

SMARTGLO® BACKLIGHT

The TX1 He is congured with a sensor that measures the intensity of ambient light.

This (Smartglo) saves battery power by allowing the Backlight to only come on when light level is low.

To activate the SmartGlo Backlight >> press/release the S button less than 2 seconds.

• If ambient light level is low, the Backlight will activate and illuminate the display for the Duration time set (0, 5, 10, or 15 seconds).

• Pressing any button while the Backlight is on will reset the timer, keeping it on for the duration time set.

NOTE: Extensive use of the Backlight reduces estimated Battery life. Also, the Backlight does not operate during a Low Battery Condition or when the TX1 He is connected to a PC.

BAR GRAPHS

The TX1 He features 2 bar graphs, one on each side of the LCD. > The one on the left represents inert gas (nitrogen and helium) loading. It is referred to as the TLBG (Tissue Loading Bar Graph). > The one on the right represents ascent rate. It is referred to as the VARI (Variable Ascent Rate Indicator).

TLBG

The TLBG represents your relative No Deco or Deco status. The lower 4 segments

represent No Deco status and the fth at the top indicates a Deco condition. As your

Depth and Elapsed Dive Time increase segments add, and as you ascend segments recede indicating that additional no deco time is available.

The TX1 He monitors 12 different inert gas compartments simultaneously and the TLBG displays the one that is in control of your dive at any given time.

VARI

The VARI provides a visual representation of ascent speed (i.e., an ascent speedometer).

The segments represent two sets of speeds which change at a reference depth of 60 FT (18 M). Refer to the chart. When ascent is too fast, all segments of the VARI and

the graphics TOO FAST will be displayed ashing until ascent is

slowed.

TX1

DIAGNOSTICS

TLBG

PO2

BAR

PSI

BAR GRAPHS

FTM

NDC

TOO FAST

TLBG

ASCENT TOO FAST

GAS1

PO2

BAR

PSI

FTM

SURF

VARI

GTR

TAT

min

VARI

GTR

TAT

min

! WARNING: At depths greater than 60 FT (18 M), ascent rates should not exceed 60 FPM (18 MPM). At depths of 60 FT (18 M) and shallower, ascent rates should not exceed 30 FPM (9 MPM).

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ALGORITHM BUHLMANN ZHL-16C WITH GRADIENT FACTOR

The TX1 He uses the Bühlmann ZHL-16c algorithm utilizing user selectable gradient

factors. The user has full control of gradient factors (GF), to adjust dive proles and

conservatism.

GRADIENT FACTOR (GF)

Gradient factors are a method for setting decompression conservatism. This is accomplished by limiting what pressure gradient, imposed on the leading theoretical tissue compartment, is permissible before further ascent.

M-value is the maximum inert gas saturation in the leading (currently limitting) tissue compartment that the ZHL-16c model predicts will not result in DCS symptoms if the diver were to ascend further.

Gradient factors limit the diver to ascend only with a fraction (factor) of the algorithm's M-value. For example, a gradient factor of 0% would mean no off gassing is taking place in the leading tissue compartment. Gradient factors of 100% would be the maximum allowable off gassing rate permitted by the algorithm.

The settings on the TX1 He allow for a GF Low and a GF High setting. The TX1 He requires the diver to select between 5 GF presets or custom settings (0% to 90%) for both the GF Low and GF High settings. The GF Low setting allows for the setting of the gradient factor of the rst decompression stop, effecting what depth the rst ceiling will be. The GF High setting allows the user to select the tissue saturation level the TX1 He will allow for surfacing, from the last deco stop.

The TX1 He does not allow for the selection of the GF for each individual deco stop.

Though by changing the GF Low and High settings, the depth of the rst deco stop and the general slope of the ascent prole can be manipulated to adjust the conservatism. This provides the diver with greater exibility for planning the conservatism of

any dive.

When choosing GF settings, consider your physical condition, the dive conditions, your personally accepted level of decompression risk. The Hollis HDDO software

may be utilized to explore how each setting effects any particular dive prole.

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DEEP STOP (DS)

When the DS selection is set On, it will trigger during NORM No Deco dives when you descend to 80 FT (24 M) and calculate (and continually update) a Stop Depth equal to 1/2 the Max Depth.

While 10 FT (3 M) deeper than the calculated DS, you will be able to access a DS Preview screen that will display the current Deep Stop Depth (calculated) and Time

(xed at 2 min) for 5 seconds then return to the Main.

Upon initial ascent to within 10 FT (3 M) below the calculated Stop Depth, a DS screen displaying a Stop Depth at 1/2 the Max Depth will appear with a Countdown Timer beginning at 2:00 (min:sec) and counting down to 0:00.

> If you descend 10 FT (3 M) below, or ascend 10 FT (3 M) above, the calculated Stop Depth for 10 seconds during the countdown, the No Deco Main will replace the DS Main display and the DS feature will be disabled for the remainder of that dive. There is no Penalty if the DS is ignored. > In the event that you enter Deco, exceed 190 FT (57 M), or a High O2 condition

(≥80%) occurs, the DS will be disabled for the remainder of that dive. > The DS is disabled during a High PO2 Alarm condition (≥ Set Point).

SAFETY STOP (SS)

If set On:

Upon ascent to within 5 FT (1.5 M) deeper than the SS Depth set for 1 second on a No Deco dive in which Depth exceeded 30 FT (9 M) for 1 second, a beep will sound and a SS at the Depth set will appear on the Main display with a countdown beginning at the SS Time set and counting down to 0:00 (min:sec).

• If the SS was set for Off or Timer, this display will not appear.

• In the event that you descend 10 FT (3 M) deeper than the Stop Depth for 10 seconds during the countdown, or the countdown reaches 0:00, the No Deco Main screen will replace the SS Main screen which will reappear upon ascent to within 5 FT (1.5 M) deeper than the Safety Stop Depth set for 1 second.

• In the event that you enter Deco during the dive, complete the Deco obligation, then descend below 30 FT (9 M); the SS Main will appear again upon ascent to within 5 FT (1.5 M) deeper than the SS Depth set for 1 second.

• If you surface prior to completing the SS, it will be disabed for the remainder of that dive.

• There is no Penalty if you surface prior to completing the SS or ignore it.

If set for Timer On:

Upon ascending to 20 FT (6 M) for 1 second on a No Deco dive in which Depth exceeded 30 FT (9 M) for 1 second, a beep will sound and a Timer will appear (if set On) displaying 0:00 (min:sec) until started.

• If the SS was set for Off or On, the Timer display will not appear.

• If you descend deeper than 30 FT (9 M) for 10 seconds, the No Deco Main will replace the Timer screen which will reappear upon ascent to 20 FT (6 M) for 1 second.

• If you enter Deco, or a High O2 alarm condition occurs (100%), while the SS Timer is active, the SS function will be disabled for the remainder of that dive.

• If you surface prior to completing the SS, it will be disabled for the remainder of that dive.

DIVE TIME REMAINING (DTR)

The TX1 He constantly monitors nitrogen loading and oxygen accumulation, and will display whichever time is the least amount available as DTR on the No Deco Dive Main screen. The graphic NDC, or OTR, will identify which time is being displayed.

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No Deco DTR (NDC)

NDC is the maximum amount of time that you can stay at your present Depth before entering Deco. It is calculated based on the amount of inert gas (nitrogen and helium) absorbed by hypothetical tissue compartments. The rates each of these compartments absorb and release inert gas is mathematically modeled and compared against a maximum allowable inert gas level.

Whichever one is closest to this maximum level is the controlling compartment for that Depth. Its resulting value will be displayed as NDC time (a) and graphically as the TLBG.

As you ascend, the TLBG segments will recede as control shifts to slower compartments. This is a feature of the decompression model that is the basis for multilevel diving, one of the most important advantages that Hollis dive computers offer.

O2 Time Remaining (OTR)

During Nitrox and Oxygen operation, O₂ accumulation during a dive or 24 hour period is displayed as a percent of O₂ saturation allowed per dive or per day. Max allowed

(100%) is 300 OTU.

When time remaining before reaching the O₂ limit becomes less than NDC, calculations for that Depth will be controlled by O₂. Then OTR will be displayed as DTR on

the Dive Main.

GAS TIME REMAINING (GTR)

aır

TLBG

PO2

BAR

NO DECO MAIN

(NDC is DTR)

aır

TLBG

PO2

BAR

NO DECO MAIN

(OTR is DTR)

NDC

GAS1

PSI

OTR

GAS2

PSI

FTM

VARI

GTR

TAT

min

FTM

VARI

GTR

TAT

min

GTR is the time your current selected gas will last at the present Depth with the Tank Pressure reserve that you selected during setup (End Pressure Alarm Setting). It is displayed on the Dive Main screens.

GTR is calculated using a patented algorithm that is based on a diver's individual Air Consumption Rate and Current Depth. The active tank transmitter pressure is measured once each second, and an average rate of Consumption is calculated over a 90 second period. This Rate of Consumption is then used in conjunction with the Depth to predict the remaining time the active gas will last at the present depth and breathing rate.

Gas Consumption and Depth are continuously monitored and GTR reects any change in circumstances. For example, when you suddenly nd yourself swimming

against a strong current and begin breathing more rapidly, the TX1 He will recognize the change and adjust GTR accordingly.

NOTE: GTR ONLY tracks the active gas transmitter. It does not account for additional available tanks with transmitters you may be carrying ie. deco tanks, travel gases, or pony tanks.

WARNING: Due to the TX1 He design parameters, multiple transmitters and routine use of multiple tanks, GTR does not account for the ascent gas needed to surface. Ensure that you start your ascent with adequate gas reserves (GTR reading). Programming a conservative End Pressure Alarm Setting for the planned depth will enhance your safety.

aır

TLBG

PO2

BAR

NO DECO MAIN

(GTR is 56 min)

NDC

GAS1

PSI

FTM

VARI

GTR

TAT

min

GTR Alarm

When GTR decreases to 5 minutes, the Audible will sound and the GTR time digits

and graphic AIR TIME will ash. If it decreases to 0, the Audible will sound again. The time digits and graphic will continue to ash until GTR becomes greater than 5

minutes.

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TX1 He OPERATING MANUAL

TOTAL ASCENT TIME (TAT)

Available only on an alternate (ALT) screen when in a decompression requirement, TAT displays the total time to the surface. For calculation, TAT assumes a strict following of the current decompression schedule and prescribed gas switches. It takes into acount all decompression stops and a standard ascent time between stops. Any delays in the decompression schedule, on the part of the diver, will cause the TAT to adjust according to a revised decompression schedule.

FTMAX

250

DECO ALT 2 (TAT 18 min)

EDT

FTM

SURF

GTR

TAT

min

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TX1 He OPERATING MANUAL

NORM DIVE

OP MODE

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NORM DIVE SCREENS

TAP

Norm Dive Main

(default)

TX1 He OPERATING MANUAL

Norm Dive Alt 1 Norm Dive Alt 2 Norm Dive Alt 3

TX 15/45

TLBG

PO2

BAR

PSI

FTM

NDC

GAS2

GTR

FTM

SURF

VARI

TAT

min

10:55

PO2

BAR

GTR TAT

min

FTMAX

250

EDT

FTM

SURF

O2 SAT

GTR TAT min

45%

TX 15/45

GAS2

PO2

BAR

back to main

No Deco Main, information includes**:

**Which information is displayed is determined by the SET D menu selection saved during setup on the surface prior to the dive.

> Current Depth with FT (or M) icon. > DTR (up to 999 min) with graphic NDC (or OTR), dashes ( - - ) if on the surface. > EDT (up to 999 min) with graphic, if set for display. > Max Depth with graphic FT (or M) MAX, if set for display.

> Pressure (or letters SPG if no tmt) with PSI (or BAR) and Link icons, if Rcvr and TMT are active, ashing when

Link is lost. > GF (Gradient Factor) if set to display on Dive Main. > Graphics GAS NAME and GAS# for actual gas > GTR (up to 199 min) with icons, blank if no TMT, or O2 Data is selected for display, dashes ( - - ) if on the surface. > O2 Data, if set for display - including % O2 accumulated with graphic O2 SAT, PO2 value with icon, and FO2 set for Gas indicated (one in use). > DS graphic - if Deep Stop is set On and has triggered. > TLBG, VARI - if they apply.

No Deco ALT 1, information includes: > Graphic ALt. > Time of day (hr:min) with graphic A (or P) if 12 hour mode. > Temperature with ° icon and graphic F (or C).

No Deco ALT 2, information includes: > Graphic ALt. > Max Depth with graphic FT (or M) MAX, blank if on Main*. > EDT (min) with graphic, blank if on Main*. > Pressure with PSI (or BAR) and Link icons, blank if on Main. > GTR (min) with icons, blank if on Main, dashes ( - - ) if on the surface. > TAT** Total Ascent Time (up to 199 min) with TAT and min icons.

*If max Depth & EDT are both on the Main, ALt 3 becomes ALt 2. **Only displayed if in Decompression.

No Deco ALT 3,

> Graphic ALt. > %O2 accumulated with graphic O2 SAT (if not already displayed on Dive Main). > GF (Gradient Factor). GF does not display here if already displayed on Dive Main. > PO2 value (x.xx ATA) with icon, dashes (--) if on the surface. (Alternately, gas pressure displays if PO2 is set to display on Dive Main.) > Graphics GAS NAME and GAS# for actual gas > Tank pressure with psi (or bar) and link icon (if linked to a tmt).

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TX1 He OPERATING MANUAL

TAP

DEEP STOP PREVIEW, information includes: > Current Depth with FT (or M) icon. > Graphic DEEP STOP with Stop icon (arrows and bar). > Stop Depth with graphic FT (or M) and countdown Time as 2:00 (min:sec).

Norm Dive Main

(deep stop triggered)

Deep Stop Preview

(default)

aır

TLBG

PO2

BAR

PSI

FTM

NDC

GAS1

GTR

TAT

min

HOLD

DEEP STOP

VARI

2:00

FTM

SURF

GTR TAT

min

back to main

DEEP STOP MAIN, information includes: > Current Depth with FT (or M) icon. > Graphic DEEP STOP with Stop icon (arrows and bar). > Stop Depth with graphic FT (or M) and countdown Time as 2:00 (min:sec). > DTR (up to 999 min) with graphic NDC. > Pressure with PSI (or BAR) and Link icons. > Graphics GAS NAME and GAS# for actual gas. > GTR (up to 199 min) with icons. > TLBG, VARI - if they apply.

Deep Stop Alt Screens, information is similar to No Deco ALts.

SAFETY STOP MAIN, information includes* -

> Current Depth with FT (or M) icon. > Graphic SAFETY STOP with Stop icon (arrows and bar). > Stop Depth set with graphic FT (or M) with set time (min:sec) counting down to 0:00, > Graphic TIMER, counting up from 0:00 to 9:59 (min:sec). > DTR (up to 999 min) with graphic NDC. > Pressure with PSI (or BAR) and Link icons. > Graphics GAS NAME and GAS# for actual gas. > GTR (up to 199 min) with icons. > TLBG, VARI - if they apply.

Safety Stop Alt Screens, information is similar to No Deco ALts.

FTM

DEEP STOP

1:23

NDC 9

TLBG

PO2

DEEP STOP MAIN

SAFETY STOP

NDC 41

TLBG

PO2

SAFETY STOP MAIN

(set for depth/time prior to dive)

SAFETY STOP

TIMER

NDC 41

TLBG

PO2

SAFETY STOP MAIN

(set for run time prior to dive)

BAR

PSI

GAS1

GTR

min

FTM

2:36

GAS3

GTR

min

FTM

2:36

GAS3

GTR

min

TAT

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TX1 He OPERATING MANUAL

DECOMPRESSION

Decompression mode activates when theoretical No Decompression time and depth limits are exceeded.

Upon entry into Deco, the Audible will sound during which the alarm LED and full

TLBG will ash. Two Up Arrows will also ash, until within 10 FT (3 M) of and below

the required Stop Depth (the Stop Zone).

> Once within 10 FT (3 M) of and below the required Stop Depth (the Stop Zone), the full Stop icon (smaller Up and Down Arrows with Stop Bar) will be displayed solid.

Managing Deco Stops

To fulll your decompression obligation, you should make a safe controlled Ascent

to a depth slightly deeper than, or equal to, the required Stop Depth indicated and decompress for the Stop Time indicated.

The amount of decompression credit time that you receive is dependent on Depth, with slightly less credit given the deeper you are below the Stop Depth indicated.

You should stay slightly deeper than the required Stop Depth indicated until the next shallower Stop Depth appears. Then, you can slowly ascend to, but not shallower than that indicated Stop Depth.

DECO STOP MAIN, information includes: > Current Depth with FT (or M) icon. > Graphic DECO STOP with Stop icon (arrows and bar). > Stop Depth with graphic FT (or M) and Stop Time (up to 99 min) with graphic MIN. > Pressure with PSI (or BAR) and Link icons. > GTR (up to 199 min) with icons. > TLBG, VARI - if they apply.

> GAS # with gas name, AIR, NX (FO2), or TX (FO2/FHe), will ash if a gas switch is

recommended.

Deco Stop Alt Screens, information is similar to No Deco ALts.

MISSED DECO

Warning >> When the depth is shallower than the deepest Stop Depth (for less than 1 minute). Alarm >> When the depth is shallower than the deepest Stop Depth (for more than 1 minute).

The warning will sound an audible alarm for 10 seconds or until acknowledged.

The stop depth will ash while a down arrow appears until returning below the deco

stop depth.

If the diver stays above the stop for more than 1 minute the alarm will activate. The audible will sound again for 10 seconds or until acknowledged. In addition to the

depth the message MISSED DECO will also ash until returning below the deco stop

depth.

FTM

100

TX 15/45

TLBG

PO2

BAR

DECO ENTRY

(1 of 2 alternating)

DECO ENTRY

100

TX 15/45

TLBG

PO2

BAR

DECO ENTRY

(2 of 2 alternating)

DECO STOP

100

AIR

TLBG

PO2

BAR

DECO STOP MAIN

GAS4 AIR

100

TX 15/45

TLBG

PO2

BAR

DECO STOP MAIN

(gas switch indicated)

DECO STOP

100

AIR

TLBG

PO2

BAR

MISSED DECO WARNING

MIN

GAS2

FTM

MIN

GAS2

FTM

MIN

GAS4

FTM

MIN

GAS2

FTM

MIN

GAS4

VARI

GTR

TAT

min

VARI

GTR

TAT

min

GTR

TAT

min

GTR

TAT

min

GTR

TAT

min

PSI

If the warning and alarm are ignored, the TX1 He will continue calculating a less conservative decompression schedule at the depth the diver is currently at unless a gradient factor of 90 is exceeded. If the ascent schedule exceeds a gradient factor 90 the computer will enter Deco Ceiling Violation (see the following).

FTM

DECO STOP

100

MISSED DECO

TLBG

PO2

BAR

MISSED DECO ALARM

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MIN

GAS4

PSI

GTR

TAT

min

Page 45

TX1 He OPERATING MANUAL

DECO CEILING VIOLATION (DCV)

The Deco Ceiling Violation triggers when the ascent exceeds a GF (gradient factor) of 90 for less than 5 minutes regardless of GF settings. During which no off gassing credit will be given, meaning Deco Stop Time and TAT will not decrease.

The Audible will sound during which the alarm LED will ash for 10 seconds or until it is acknowledged. A Down Arrow will also ash until descent is made to below the

required Stop Depth. Then it is removed.

If the condition is corrected within 5 minutes, operation will then resume in Deco or No Deco mode.

If not corrected within 5 minutes and still underwater, operation enters Delayed Deco Violation (see the following section).

If not corrected within 5 minutes and the diver has surfaced (omitting deco), the coputer will enter VGM (Violation Gauge Mode).

DELAYED DECO VIOLATION (DDV)

Once the ascent exceeds a GF 90 for more than 5 minutes, operation will enter Delayed Deco Violation. During which no off gassing credit will be given, meaning Deco Stop Time and TAT will not decrease.

The Audible will sound during which the alarm LED and full TLBG will ash for 10 seconds. Two Down Arrows will ash until descent is made to below the required

Stop Depth.

When descent below the required Deco Stop Depth, operation will then resume in Deco or No Deco mode.

5 minutes after surfacing from the dive, operation reverts to VGM (Violation Gauge Mode).

After a full 10 minutes on the surface, the TX1 He will switch to VGM Surface Main (Surface functions remain available).

DEPTH VIOLATION (DV)

Upon descent deeper than the depth limitation (400 ft/120 m) of the TX1 He, the Au-

dible will sound during which the alarm LED will ash for 10 seconds. Two Up Arrows and the loaded segments of the TLBG will also ash.

PSI

GAS2

FTM

GAS2

SURF

GAS2

GTR

TAT

min

GTR

TAT

min

GTR

TAT

min

GF>90

100 FT 2 MIN

TX 15/45

TLBG

PO2

BAR

DECO CEILING VIOLATION

GF>90

100 FT 7 MIN

TX 15/45

TLBG

PO2

BAR

DELAYED DECO VIOLATION

(during audible)

GF>90

100 FT 7 MIN

TX 15/45

TLBG

PO2

BAR

DELAYED DECO VIOLATION

(on surface < 5 min)

The Decompression Calculations will continue if data is accurate. Though they will not be visible until ascending above 400 ft/120 m.

The Log for that dive will record 3 dashes as the Max Depth.

DV MAIN, information includes -

> Current Depth ashing as 3 dashes ( - - - ) with FT (or M) icon. > (2) Up Arrows ashing, until at/above MOD.

> DTR as 3 dashes ( - - - ) with graphic NDC. > Pressure with PSI (or BAR) and Link icons. > Graphics GAS NAME and GAS# for actual gas. > GTR (up to 199 min) with icons.

> TLBG - ashing for the remainder of that dive.

> VARI while ascending.

NDC

TX10/40

TLBG

PO2

DEPTH VIOLATION

Doc. 12-4101-r06 (1/21/14)

GAS5

BAR

PSI

VARI

GTR

TAT

min

Page 46

TX1 He OPERATING MANUAL

GAS SWITCH WARNING (AFTER DECO ENTRY)

Warning >> when the actual gas is not the best gas at current depth.

When there is required decompression, the TX1 He shall warn the diver about switching to the best active gas available. The best gas is the gas with highest PO2 that is below the PO2 MAX at current depth. When there is a better active gas available; the audible sound twice and the message SWITCH TO (gas name) will be displayed until the gas is switched or the warning is acknowledged.

HIGH PO2

Alarm >> at Set Point value, except in Deco then at 1.60 only.

When partial pressure of oxygen (PO2) increases to the Warning level; the Audible

will sound during which an Up Arrow and the PO2 value with icon will ash in place of

Pressure.

The High PO2 Alarm level, the Audible will sound again during which (2) Up Arrows

and the PO2 value with icon will ash in place of Pressure.

> After the Audible is silenced, Pressure is restored, and the Up Arrows remain on solid until PO2 decreases below the alarm level, at which time one of the Up Arrows is removed.

High PO2 during Deco

The PO2 alarm that was set does not apply when in Deco.

If PO2 reaches 1.60, the Audible will sound during which the PO2 value with icon will

ash in place of Pressure.

> After the Audible is silenced, the PO2 value with icon will alternate with Pressure once each minute*.

*PO2 will be displayed for 10 seconds, then Pressure will be displayed for 50 seconds once each minute until PO2 decreases below 1.60, then PO2 will not be displayed.

FTM

SWITCH TO NX 40

TLBG

PO2

BAR

GAS SWITCH WARNING

(after deco entry)

MIN

PSI

VARI

GTR

TAT

min

FTM

NDC

TLBG

PO2

HIGH PO2 ALARM

(during audible)

NX 80

TLBG

PO2

HIGH PO2 ALARM

(during audible, in Deco)

GAS2

BAR

DECO STOP

BAR

GAS3

GTR

TAT

min

FTM

MIN

GTR

TAT

min

LOW PO2

Warning (only during No Deco) >> at 0.17 ≤ PO2 < 0.21 Alarm >> at PO2 < 0.17

When partial pressure of oxygen (PO2) decreases to the Warning level; the Audible

will sound during which a Down Arrow and the PO2 value with icon will ash in place

of Pressure.

> After the Audible is silenced, Pressure is restored, and the Down Arrow remains on solid until PO2 increases above 0.20 ATA.

If PO2 continues to decrease and reaches the Low PO2 Alarm level, the Audible will

sound again during which (2) Down Arrows and the PO2 value with icon will ash in

place of Pressure.

> After the Audible is silenced, Pressure is restored, and the (2) Down Arrows and

PO2 icon remain on (ashing) until PO2 increases above 0.17 ATA. At which time the

screen reverts to the Low PO2 Warning Screen until PO2 increases above 0.20 ATA.

TLBG

PO2

BAR

LOW PO2 WARNING

(during audible)

GAS4

NDC

TLBG

PO2

LOW PO2 ALARM

(during audible)

GAS4

BAR

FTM

GTR

TAT

min

FTM

GTR

TAT

min

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Page 47

TX1 He OPERATING MANUAL

Low PO2 during Deco

If PO2 drops below 0.17 ATA, the Audible will sound during which the PO2 value with

icon will ash in place of Pressure.

> After the Audible is silenced, the PO2 value with icon will alternate with Pressure once each minute*.

*PO2 will be displayed for 10 seconds, then Pressure will be displayed for 50 seconds once each minute until PO2 increases above 0.17, then PO2 will not be displayed.

HIGH O2 SATURATION

Warning >> at 80 to 99% (240 OTU). Alarm >> at 100% (300 OTU).

When O2 reaches the Warning level; the Audible will sound during which the O2

value with graphic %O2SAT and an Up Arrow will ash (in place of DTR) until the

audible is silenced. Then DTR will be restored. The Up Arrow will remain on solid until O2 decreases below 80%.

If O2 reaches the Alarm level; the Audible will sound again during which (2) Up

Arrows and the O2 value 100 with graphic %O2SAT will ash until the audible is silenced. Then O2 value with graphic %O2SAT will ash until on the surface.

High O2 during Deco

When O2 reaches the Warning Level; the Audible will sound during which the O2

value with graphic %O2SAT will ash in place of Stop Depth/Time with the graphic

DECO STOP until the Audible is silenced. Then Stop Depth/Time will be restored. No indication (Up Arrow) is given to ascend.

When O2 reaches 100%, the Audible will sound again during which the O2 value

100 with graphic %O2SAT and (2) Up Arrows will ash in place of the graphic DECO STOP until the audible is silenced. Then O2 value with graphic %O2SAT will ash

until on the surface, and the full TLBG remains on solid as a reminder of Deco.

High O2 on Surface

Upon ascent to 2 FT (0.6 M) for 1 second (surfacing), the Dive Main screen is displayed for 10 minutes with access to the Dive ALTs allowed. Surface Interval Time

with the SURF icon ashing will be displayed in place of Depth.

> If O2 is 100%, the value will ash on the Main until it is < 100%, then it will be

replaced with dashes and graphic NDC until 10 minutes elapse, then NORM Surface Main.

FTM

DECO STOP

TX 10/55

TLBG

PO2

BAR

LOW PO2 ALARM

(during audible in Deco)

NX 32

TLBG

BAR

O2 WARNING

(during audible)

100%

NX 32

TLBG

BAR

O2 ALARM

(during audible)

MIN

GAS6

O2 SAT

80%

GAS3

PSI

O2 SAT

GAS2

PSI

GTR

TAT

min

GTR

min

GTR

min

DECO STOP

O2 SAT

80%

NX 36

TLBG

O2 WARNING

(during audible, in Deco)

100%

AIR

TLBG

O2 ALARM

(during audible, in Deco)

GAS2

BAR

PSI

GTR

min

O2 SAT

GAS2

BAR

PSI

GTR

min

> If you surface due to 100% O2 without having completed the Deco obligation, the

O2 value 100 with graphic % O2 SAT will ash for the rst 5 minutes. Then dashes

will be dipslayed and operation will enter VGM.

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Page 48

TX1 He OPERATING MANUAL

TAP

VIOLATION GAUGE MODE (VGM)

VGM turns the TX1 He into a digital instrument without any decompression or oxygen related calculations or displays. This would be the result of severe decompression violations or 100% O2 SAT condition.

The graphic VIOL ashes for the rst 10 minutes, then VIOLATION alternates with

NORM (each On 3 seconds) until unit shut down after 24 hours with no dives*.

*A full 24 hour surface interval must then be served before all functions are restored.

SURF

VIOLATION

NX 32

VGM MAIN

(on surface < 10 min)

GAS3

BAR

PSI

GTR

min

During that 24 hours, access to all menus and screens is available except those associated with decompression calculations such as Gas Menu, Plan Menu, Set GF, Last Stop, Deep Stop, and Safety Stop. The Fly countdown timer provides the time remaining (of the 24 hours required) before normal operation can resume with full features and functions.

NORM DIVE MAIN MENU

Gas Switch

Similar to Surface Gas Switch (p. 22) with the inclusion of ICD warning when appropriate (see below).

Isobaric Counter Diffusion (ICD) Warning

During a gas switch the TX1 He will display a warning if there is a risk of ICD. The risk must be accepted or declined by selecting YES or NO in the ICD Menu. If declined the TX1 He will not complete the gas switch. Instead it will return the user to the Dive Main Screen.

> Graphic selection YES or NO.

FTM

!WARNING! ISOBARIC COUNTER

DIFFUSION >CONFIRM YES

TLBG

PO2

BAR

PSI

VARI

GTR

TAT

min

to select

SURF

PO2

DIVE 4

BAR

PSI

GAS3

VIOL

NX 32

VGM MAIN

(on surface > 10 min)

to toggle YES/NO

Select Gases Similar to the Surface Select Gases Menu (pg. 25).

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Page 49

TX1 He OPERATING MANUAL

Depth Limits

This feature displays the depth limits of the current gas, based on MOD, END, WOB, and HT physiological and alarm settings limits.

Depth Limit types: MOD - is the Maximum Operating Depth calculated by the PO2 MAX set for the active gas. END* - is the depth limit that the active gas reaches the Equivalent Nitrogen Depth Alarm setting for the active gas. WOB* - is the depth limit that the active gas reaches the Work Of Breathing Alarm setting for the active gas. HT - is the depth that the PO2 of the active gas equals 0.21 ATA.

*In this menu WOB and END stand for the limits set not the current (at actual depth) of the gas.

Information includes: > Current Depth with FT (or M) icon. > Tank Pressure with PSI (or BAR) and Link icons, if the receiver and transmitters are active. > PO2 value (x.xx ATA) with PO2 icon, replacing Pressure when option E is selected. > GTR (up to 199 min) with GTR and min icons. > TLBG with icon, Inert Gas Loading. > VARI, Ascent Rate. > Graphics MOD, END**, WOB**, and HT**. > Graphic FEET (or METERS) LIMITS.

FTM

MOD END WOB HT 180 130 124 14 FEET LIMITS

TX 15/45

TLBG

PO2

DEPTH LIMITS

GAS3

BAR

PSI

VARI

GTR

TAT

min

**END, WOB, and HT are only displayed if their respective alarms are set ON and the actual

gas is Trimix.

Current END (w/O2 NARC Yes/No) WOB

This feature displays the current (at actual depth) END and WOB values of the active gas.

Current Value types: END - is the Equivalent Narcotic Depth value of the actual gas at the current depth.

NOTE: The TX1 He allows the inclusion of oxygen as a narcotic gas by setting O2 NARC to yes in the Utilities Menu. If set to yes, oxygen is considered equally narcotic as nitrogen. If O2 Narc is set to No, oxygen narcotic effect will be disregarded in END calculations.

WOB - is the equivalent depth that AIR would have the same Work Of Breathing as the actual (active gas) has at the current depth.

Information includes: > Current Depth with FT or M icon. > Graphics CURRENT. > Graphics END (with the value) and WOB (with the value) of the actual gas*. > Graphic FEET or METERS. > Graphics GAS NAME (AIR, NX (FO2), or TX (FO2/FHe) and GAS# of the actual gas. > Tank Pressure with PSI (or BAR) and Link icons, if the receiver and transmitters are active. > PO2 value (x.xx ATA) with PO2 icon, replacing Pressure when option E is selected. > GTR (up to 199 min) with GTR and min icons. > TLBG with icon, Inert Gas Loading. > VARI, Ascent Rate.

FTM

CURRENT END 32 WOB 36 FEET

TX 15/45

TLBG

PO2

CURRENT END WOB

GAS3

VARI

BAR

GTR

PSI

TAT

min

*If FN2=0, the END shall not be calculated and 400 ft (or 120 m) shall be displayed as END value (N2 only). If any value is greater than 400 ft (120 m), 400 ft (or 120 m) shall be displayed. 0 (zero) shall be displayed if any calculated value is negative.

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Page 50

TX1 He OPERATING MANUAL

TAP

Deco Stops

Deco Stops is a menu that displays all of the currently required decompression stops, times, and the gases to be used.

Information includes: > Current Depth with FT or M icon. > PO2 value (x.xx ATA) with PO2 icon, replacing Pressure when option E is selected. > TAT (Total Ascent Time). > TLBG with icon, Inert Gas Loading. > VARI, Ascent Rate. > Graphic FEET (or METERS) (depth of deco stops), MIN (duration of deco stops, Max 99 min), and GAS (Gas Names). > Graphic list of Depths, Duration, and Gas Names (AIR, NX FO2, or TX FO2/FHe).

FTM

60 5 NX 50 50 5 NX 50 40 6 NX 50 30 7 NX 50

TLBG

PO2

BAR

VARI

TAT

min

to select

downup

to scroll cursor (>)

Batt/TMT

Similar to the Surface Batt/TMT Menu (p.21).

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Page 51

TX1 He OPERATING MANUAL

GAUGE

OP MODE

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Page 52

TX1 He OPERATING MANUAL

TAP

GAUGE SURF SCREENS

Gauge Surf

Main

FTM

SURF

TMT1

PO2

BAR

PSI

DIVE 0

GTR TAT min

GAUGE

GAUGE SURF MAIN, information includes: > SI (hr:min) with Time (clock) and SURF icons; if no dive yet, this is time since activation. > Graphic GAUGE (operating mode). > Graphic DIVE and number of dives completed during that operating period, up to 24 (0 if no dive made yet).

> Graphic TMT 1, default on surface before rst dive and 10 minutes after surfacing from dives.

> Tank Pressure with PSI (or BAR) and Link (speaker) icons, if the Receiver is successfully Linked with an active

TMT (Transmitter), 000 ashing after 15 seconds of lost Link.

> Battery icon, if voltage is low.

GAUGE SURF ALT 1, information includes: > SI* (hr:min) with Time (clock) and SURF icons. > Max Depth* with graphics FT (or M) and MAX. > Elapsed Dive Time* (hr:min) with graphic EDT. > Graphic LAST, indicating that data is from the dive previously conducted while in GAUGE mode.

FT MAX

TLBG

Gauge Surf

Alt 1

(PZ+)

EDT

232

PO2

BAR

PSI

Gauge Surf

Alt 2

FTM

SURF

GTR TAT

min

(PZ+)

12:45

TLBG

PO2

BAR

PSI

FTM

GTR TAT

min

TLBG

Gauge Surf

Alt 3

(PZ+)

EDT

01:23

232

PO2

BAR

PSI

FTM

GTR TAT min

back to main

GAUGE SURF ALT 2, information includes:

> Altitude graphic, if EL - 2 (to EL - 7), blank if Sea level. > Time of Day (hr:min) with graphic A (or P). > Temperature with ° icon and graphic F (or C).

GAUGE SURF ALT 3, information includes:

> Graphics GAUG and AVE (average). > Average Depth* with graphic FT (or M). > Average EDT* (min) with graphic.

*These are average values calculated for the dive, or series of repetitive dives, conducted while still in GAUGE.

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Page 53

GAUGE MAIN MENU

TAP

Selections include: > SWITCH TMT > FLY. > LOG. > SET MENU. > OP MODE. > HISTORY. > TX1 HE ID. > BATT/TMT > DIVE PREVIEW

TX1 He OPERATING MANUAL

Gauge Surf

Main

TMT1

PO2

BAR

PSI

DIVE 0

GAUGE

FTM

SURF

GTR TAT min

Gauge Surf

Main Menu

(PZ+)

>FLY LOG SET MENU OP MODE

TLBG

PO2

BAR

PSI

Gauge Surf

Gauge Fly

Main Menu

FTM

SURF

GTR TAT

min

(PZ+)

>FLY LOG SET MENU OP MODE

TLBG

PO2

BAR

PSI

FTM

SURF

GTR TAT

min

(PZ+)

TLBG

PO2

BAR

downup

SWITCH TMT

The Switch TMT Menu selection provides access to a listing of sub menus that allow the changing of the current TMT.

These Switch TMT Sub Menus are described after the Gauge Main Menu items (starting on page 54).

FLY, information includes:

> Graphic FLY with countdown time (hr:min) and Time (clock) icon, dashes if no dive yet.

LOG, shared with NORM (see page 21).

SET MENU, similar to NORM (see page 22).

> GAUGE does not access the Set Gases Menu.

FTM

SURF

23:50

PSI

GTR TAT min

TLBG

(PZ+)

FTM

SURF

23:50

PO2

BAR

PSI

Fly

(10 min. after dive)

GTR TAT

min

OP MODE, similar to NORM (see page 22).

HISTORY, shared with NORM (see page 23).

TX1 ID, same as NORM (see page 23).

BATT/TMT STATUS, same as NORM (see page 23).

DIVE PREVIEW

This feature provides quick access to a screen that displays up to 4 settings that can be pre selected* using the Set P Menu.

Preview, information includes:

> Graphics GAUG and PREV. > Selections* with Set Points entered using that menu.

• Press S button to revert to the Main Menu.

(PZ+)

FTM

DEPTH AL EDT AL TP AL TMT1

TLBG

PO2

BAR

SURF

140 FT 60 MIN 300 PSI ON

PSI

GTR TAT min

Gauge Dive

Preview

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Page 54

TX1 He OPERATING MANUAL

TAP

SWITCH TMT SUB MENUS

Information that follows describes the sub menus (GAUGE TMT SWITCH, TMT SWITCH CONFIRMATION, SEARCHING TMT) that are accessed from the Gauge SURF Main Menu.

Gauge Surf

Gauge TMT Switch Menu

Main Menu

(PZ+)

FTM

FTM SURF

>TMT SWITCH

>FLY

FLY

LOG

SET MENU

OP MODE

TLBG

PO2

SURF

BAR

PSI

GTR

TAT

min

(PZ+)

>USE DEFAULT

>TMT 2 TMT 3

ADD MAX D

TLBG

PO2

BAR

PSI

to scroll cursor (>)

GAUGE TMT SWITCH, information includes*:

> Graphic CHNG and TMT selections include: > all active TMTS displayed as TMT #

FTM

SURF

GTR

TAT

min

to select

downup

Searching for TMT

(PZ+)

FTM

SURF

23:50

TMT 2

BAR

PSI

SURF

GTR

TAT

min

SEARCHING FOR ---

TLBG

PO2

* If there are no active TMTs then the TMT Switch Menu is unavailable. ** The current TMT and TMTs turned OFF will not display as options on the menu.

SEARCHING FOR TMT, information includes:

> Graphic SEARCHING FOR --- TMT (1, 2, 3, 4, 5, or 6).

SET GROUPS

Information that follows describes the selections contained in the GAUGE Set Groups (A, U, T, S, D, P) that are accessed from the Set Menu.

Gauge Surf Main Sel Menu Sel Menu

(set menu highlighted)

TMT1

PO2

BAR

PSI

DIVE 0

GAUGE

(PZ+)

FTM

SURF

GTR TAT min

>FLY LOG SET MENU OP MODE

TLBG

PO2

FTM

SURF

BAR

PSI

GTR

TAT

min

(PZ+)

FLY LOG >SET MENU OP MODE

TLBG

PO2

BAR

PSI

FTM

SURF

x 2

GTR TAT

min

Set Menu

(PZ+)

>A-ALARMS U-UTILITIES T-TIME S-SHORTCUT

TLBG

PO2

BAR

PSI

SET A (ALARMS), shared with NORM (see page 28).

SET U (UTILITIES), shared with NORM (see page 29).

> GAUGE includes TO SET TMT MENU similar to NORM Set TMT Menu (see page

27).

FTM

SURF

GTR TAT min

SET T (TIME/DATE), shared with NORM (see page 31).

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TX1 He OPERATING MANUAL

TAP

SET S (Shortcut) Menu, information includes: > Graphics SEt S and MENU.

Selections include: > LOG MENU. > MY INFO (default Shortcut until another item is selected) > SET HEADING. > SET TIME.

Gauge Set S Menu

(PZ+)

FTM

>LOG MENU MY INFO SET HEADING SET TIME

TLBG

PO2

to scroll cursor (>)

One item can be selected from the list. That item (referred to as a Shortcut) can then be accessed directly by pressing M (2 sec.) while viewing the

Surface Main.

SURF

BAR

PSI

GTR TAT min

to select

downup

SET D (Dive Main) Menu, information includes: > Graphics SEt d and MENU. The default screen for dives displays Current Depth, Run Timer, Pressure, and GTR (gas time remaining). Max Depth is displayed on an Alternate screen. Set D allows it to be added to the Main (moving it from the Alternate).

Selections include: > USE DEFAULT >> no change to the display. > ADD MAX D >> also reduces the size of NDC digits.

Gauge Set D Menu

(PZ+)

FTM

>USE DEFAULT ADD MAX D

TLBG

PO2

to scroll cursor (>)

*Ensure that the selection to be saved reects information you want to see on the Dive Main, it

cannot be changed during the dive (only while on the surface using this menu).

SURF

BAR

PSI

GTR

TAT

min

to select

downup

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TAP

SET P (Preview) Menu, information includes:

> Graphics SEt P and MENU. Using this menu, you can chose up to 4 items (Set Points that have been entered) for display on a Preview screen that can be accessed from the Surface Main Menu. Selections include:

> DEPTH AL SET.

> EDT AL SET. > TP AL SET. > GLO DUR SET.

> MAX DEPTH

> TMT1 SET > TMT2 SET > TMT3 SET > TMT4 SET > TMT5 SET > TMT6 SET

Guage Set P Menu

(PZ+)

FTM

DEPTH AL SET EDT AL SET TP AL SET >GLO DUR SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT min

to scroll cursor (>)

to select or deselect

downup

Guage Set P Menu

(selected items ash)

(PZ+)

FTM

>DEPTH AL SET >EDT AL SET >GLO DUR SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

to save

Guage Set P Preview

(only selected items display)

(PZ+)

FTM

>DEPTH AL SET >EDT AL SET >GLO DUR SET

TLBG

PO2

SURF

BAR

PSI

GTR TAT

min

to Set Menu

*Once 4 items are ashing, another item cannot be toggled to ash until one of the ashing items is toggled to solid.

When satised that those items ashing (up to 4) are what you want for the Preview screen, press S (2 sec) to display all items ashing, then press S (< 2 sec) to revert to the Preview screen with all items solid.

Upon descent to 5 FT (1.5 M) for 5 seconds, operation

will enter GAUGE Dive Mode.

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GAUGE DIVE SCREENS

TAP

Gauge Dive Main

(optional main, no timer)

TX1 He OPERATING MANUAL

Gauge Dive Alt

(timer not on)

(using timer, default main)

start/stop time

GAUGE DIVE MAIN, information** includes -

**Which information is displayed on the Main screen and which is on the Alternates is determined by the SET D menu selection saved during setup on the surface prior to the dive.

FTM

FT MAX

EDT

276

TMT1

PO2

BAR

GTR

PSI

Gauge Dive Main

FTM

TIME

EDT

2:46

TMT1

PO2

BAR

GTR

PSI

HOLD

VARI

TAT

min

VARI

TAT

min

reset time

FTM

SURF

10:55

PO2

BAR

GTR TAT

min

back to main

> Current Depth with FT (or M) icon. > Graphic TIMER with Time (up to 999:59 min:sec), 0:00 until started and after reset. > Max Depth with graphics FT (or M) and MAX, if set for display. > Graphic EDT with Elapsed Dive Time (up to 999 min). > Graphic TMT (1, 2, 3, 4, 5, or 6), one in use. > Pressure (or letters SPG if no tmt) with PSI (or BAR) and Link icons, if Rcvr and

TMT are active, ashing when Link is lost.

> GTR (up to 199 min) with GTR and min icons, dashes ( - - ) if on the surface. > VARI while ascending.

• A (< 2 sec) to access ALT.

• A (2 sec) to Reset Run Timer (to 0:00).

• A (< 2 sec) to Start/Stop the Timer.

• M (2 sec) to access TMT Switching*.

• S (< 2 sec) to activate Smartglo® Backlight or acknowledge alarms.

• S (2 sec) to access Compass*.

*These items can only be accessed while viewing the Main.

GAUGE DIVE ALT, information includes > Graphic ALt. > Max Depth with MAX and FT (or M) icons, if Timer is on Main. > Time of Day (hr:min) with graphic A (or P) if 12 Hour. > Temperature with ° icon and graphic F (or C).

• A (< 2 sec) to revert to Main.

• Revert to Main in 5 sec, if A is not pressed.

• S (< 2 sec) to activate Smartglo® Backlight.

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TX1 He OPERATING MANUAL

TAP

GAUGE DIVE CHANGE TMT SCREENS

Gauge Dive Main

Gauge TMT Switch Menu

(optional main, no timer)

(PZ+)

>USE DEFAULT

>TMT 2 TMT 3

ADD MAX D

TLBG

PO2

BAR

FTM

SURF

PSI

GTR

TAT

min

to select

FT MAX

276

TMT1

PO2

EDT

BAR

PSI

FTM

VARI

GTR

TAT

min

downup

to scroll cursor (>)

GAUGE TMT SWITCH, shared with GAUGE SURF MODE (see page 54).

SEARCHING FOR TMT, shared with GAUGE SURF MODE (see page 54).

GAUGE DEPTH VIOLATION

Upon descent deeper than the Max Functional Depth of 400 FT/120 M, the Audible

will sound during which the alarm LED will ash.

Current Depth and Max Depth (if no timer on Main) will only indicate 3 dashes ( - - - ) signifying that you are Out of Range.

Upon ascending above the Max Functional Depth, Current Depth will be restored, however, Max Depth (if no timer on Main) will display 3 dashes for the remainder of that dive. Also, the Log for that dive will display 3 dashes as the Max Depth.

Searching for TMT

(PZ+)

FTM

SURF

23:50

TMT 2

BAR

PSI

SURF

GTR

TAT

min

SEARCHING FOR ---

TLBG

PO2

FTM

TIME

EDT

BAR

PSI

GTR

TAT

min

12:46

TMT1

PO2

Gauge Depth Violation

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TX1 He OPERATING MANUAL

COMPASS

MODE

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Dynamic North, or

RefHeading set

TX1 He OPERATING MANUAL

Diver’s

Direction of

Travel

Turn Right

Turn Left

North OP Mode

Reference OP Mode

Ref Reverse

Diver’s general

direction

Diver’s actual

Heading

TLBG

PO2

BAR

Ref Heading set

Compass Access Time remaining when <= 15 sec. (press S button to extend time)

! WARNING: You must become thoroughly familiar with setup and operation of the TX1 He Digital Compass before using it as your primary device for navigation. Failure to do so could result in serious errors relating to activities involving navigation.

> Practice on land before use in water. > Practice on the surface before use underwater.

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TX1 He OPERATING MANUAL

heading

TAP

heading

OVERVIEW

> Compass OP Mode selected (North or Reference) - remains until changed. > Reference OP Mode - can set a course, then also select a Reverse course while on the surface and during dives. > Numeric values are displayed as 3 digits (000 to 360°), have a resolution of 001°, and an accuracy of +/- 005°.

> Operation will be normal and display of values will be within specied tolerances up

to 90° tilt at which time the Heading (diver's direction) digits are removed until the tilt angle is corrected.

From Surf Main or Dive Main Compass Main

(North OP Mode)

TLBG

PO2

BAR

actual

NORTH OP MODE

VARI

course

set

FTM

SURF

PO2

BAR

PSI

DIVE 0

GAS1

GTR TAT min

HOLD

TLBG

PO2

BAR

VARI

HOLD

or no button press for

NORM

aır

2 min* to return to main screen

*During the nal 15 seconds, the remaining On time is displayed in the lower right corner.

If a button is pressed during that time, the 2 minute On time will reset allowing operation to remain in Compass Mode.

Upon accessing the Compass, the OP (operating) Main of the last mode selected will be displayed >> North, Reference, or Reverse Reference.

COMPASS MENU

Selections include: > NORTH MODE -select as OP Mode with no set heading. > REF MODE - select as OP Mode with set heading allowed. > CALIBRATE - access to initiate Calibration. > SET DECLINATION - access to set Declination.

Compass Main Compass Menu

actual

heading

TLBG

PO2

BAR

REF OP MODE

TLBG

PO2

BAR

actual

REVERSE REF OP MODE

180°

opposite

set

VARI

>NORTH MODE REF MODE

TLBG

PO2

BAR

VARI

CALIBRATE SET DECLIN

PO2

BAR

to scroll cursor (>)

NOTE: Compass Menu is only available while in Surface Mode.

NORTH OP MAIN, information includes -

> Current Depth with FT (or M) icon, Surface Interval during rst 10 min on surface,

blank on surface > 10 min. > North Mode icon (letter N in box). > Static Arrow icon (at 12 o'clock), diver direction of travel. > Dynamic Arrow, relative direction of magnetic North. > Numeric heading (diver's current direction), 001 to 360°, with position graphic (N, E, SE, etc.). > On time remaining, counting down, if 15 to 0 (sec) remaining.

to select

downup

VARI

actual

TLBG

PO2

BAR

NORTH OP MAIN

(at 105°)

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REFERENCE OP MAIN, information includes -

> Current Depth with FT (or M) icon, Surface Interval during rst 10 min on surface,

blank on surface > 10 min. > Reference Mode icon (2 bars with arrow) with numeric Reference heading (course) set below it. > Static Arrow icon (at 12 o'clock), diver direction of travel.

> Turn Arrow icon (left or right) ashing during any time the diver deviates ≥ 10° off

the heading set. > Dynamic Arrow, tracking Reference direction set. > Numeric heading (diver's current direction), 001 to 360°, with position graphic (N, E, SE, ESE, etc.). > On time remaining, counting down, if 15 to 0 (sec) remaining.

REFERENCE MENU, information includes > Current Depth with FT (or M) icon, blank on surface. > Graphic MENU, with selections -> > SET HEADING. > REVERSE HEADING. > On time remaining, counting down, if 15 to 0 (sec) remaining.

REF OP Main

TLBG

PO2

BAR

VARI

REF Menu

>SET HEADING REVERSE HEADING

PO2

BAR

VARI

TLBG

PO2

BAR

REF OP MAIN

(at 277°, turn left to 260°)

VARI

to select

downup

to scroll cursor (>)

Set Reference Heading, information includes > Current Depth with FT (or M) icon, blank on surface.

> Reference Mode icon (2 bars with arrow) with graphic SET (ashing) below it.

> Static Arrow icon (at 12 o'clock), diver direction of travel. > Dynamic Arrow, tracking Reference direction set. > Numeric heading (diver's direction), with position graphic. > On time remaining, counting down, if 15 to 0 (sec) remaining.

Rotate To Desired Heading

(while holding level)

BAR

VARI

to Lock Heading

TLBG

PO2

BAR

TLBG

to Compass Menu

PO2

BAR

VARI

to continue

TLBG

PO2

to Reference Menu

VARI

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TAP

Reverse Ref Heading, information includes > Current Depth with FT (or M) icon, blank on surface. > Reverse Mode icon (2 bars with arrow) with reverse Heading (180° opposite of

Reference Heading set) below it (ashing).

TLBG

PO2

BAR

VARI

to accept Heading

TLBG

PO2

BAR

VARI

The value below the Reverse Mode icon will stop ashing indicating the Heading has been

reversed.

CALIBRATION (surface only)

Local magnetic elds can effect display of actual location when reading a digital

compass.

It may be advantageous to Calibrate the Compass before its rst use after purchase,

before use in new global regions, or if inaccuracies are experienced.

Calibration will be required when the battery is changed.

Upon selecting Calibration on the Compass Menu (by S < 2 sec), a screen appears

displaying the graphics CAL with Face Down Until Beep*.

*This screen will also be accessed after the Battery is changed and Data is either saved or cleared.

FACE DOWN

UNTIL BEEP

ACCES TO CAL

(turn unit upside down)

FACE DOWN

UNTIL BEEP

AFTER BEEP

(turn unit right side up)

ROTATE TO CALIBRATE

To initiate Calibration > turn the unit over (face down) until it beeps, then > turn the unit over (face up) until it beeps, after which a screen appears displaying the graphics CAL with Rotate To Calibrate 360°.

> while keeping it in a at level position, slowly and steadily rotate* it 360° while keeping it in a at level position (keeping it level is critical for accuracy), progress will

be indicated by a circle forming on the display.

*Rotation should take about 15 seconds. If not fully rotated in 15 seconds, operation will revert to the Compass Menu.

Calibration complete -

> Once fully formed, the circle will be replaced with the graphics Ready Passed Cali-

bration or Failed Calibrate Again, ashing for 3 seconds, then -

> If READY, operation reverts to the Compass OP Main. > If FAILED, operation reverts to the CAL Face Down Until Beep screen for repeat of the procedure. > If Calibration fails 3 times, operation reverts to the Surface Main screen.

TO START CAL

CAL PROGRESS

(circle forms while rotating)

READY

PASSED

CALIBRATION

CAL PASSED

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TAP

DECLINATION

Magnetic Declination is taken from numbers provided on maps or charts that apply to

a specic location. The numbers represent

the easterly or westerly angular difference (Declination) in degrees between magnetic North and true (geometric or polar) North. A Compass will point to magnetic North unless its reference is adjusted to true North prior to conducting activities.

Declination Menu, information includes > Graphics SEt and MENU, with selections > OFF. > DECLIN EAST + . > DECLIN WEST - .

Declination Menu

Set Declination East or West

(declination east chosen, ashing)

>OFF DECLIN EAST DECLIN WEST

PO2

BAR

downup

to scroll cursor (>)

to select

OFF >DECLIN EAST DECLIN WEST

PO2

BAR

to save setting

to adjust setting

> If OFF is selected, Declination is set for 0° and operation reverts to the Compass Menu.

> If DECLIN EAST (or WEST) is selected, that graphic will ash and the numeric value with ° icon will ash in place of the

graphic MENU.

ALARMS

When most Alarms strike, operation in Compass Mode will be terminated and the Dive Main will be displayed indicating the alarm condition. Compass Mode can then be reentered by pressing S (2 sec).

During several types of alarms, indication will be given while remaining in Compass Mode without interuption. They are -

Ascent Alarm -

> VARI, all segments ashing until slowed.

TLBG

PO2

BAR

ASCENT ALARM

VARI

Depth Alarm -

> Depth digits ashing until < alarm depth set.

Loss of Link -

> Link icon on ashing until Link is regained.

TLBG

PO2

BAR

VARI

DEPTH ALARM

TLBG

PO2

BAR

VARI

LOSS OF LINK

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TX1 He OPERATING MANUAL

REFERENCE

CAUTION: When the procedure provided in this section is used to change the TX1 He battery, you must be sure that the case O-ring is not pinched and that the TX1 He is water tight before conducting diving activities. Pre-dive pressure testing by an Authorized Hollis Facility is highly recommended.

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TX1 He OPERATING MANUAL

PC INTERFACE

The TX1 He is congured with a Data Port that enables it to be connected to a PC

through a USB port using a special Interface Cable supplied or available as an optional accessory.

A USB Driver is provided on the HCI CD. This must be installed on the PC with the program.

The Settings Upload feature can be used to set/change all of the unit's settings except FO2 and FHe which must be entered using the unit's control buttons and menu system.

Information* available for retrieval (Download) from the TX1 He to the PC HCI program includes items such as dive number, surface interval time, max depth, elapsed dive time, start date and time, lowest temperature underwater, sampling rate, dive

prole, Set Points, start/end pressure, Gas Time Remaining, O2 data, ascent rate,

TLBG, and Switching events.

The TX1 He checks for the presence of an interface device connection to the Data Port once every second while in Surface Mode. Checks are not made if the Wet Activation contacts are wet.

Upon sensing an interface connection, the requesting device (PC) connects to the TX1 He and is prepared for Upload of settings or Download of data which is then initiated using the PC HCI program.

Prior to attempting to Download data from your TX1 He or Upload settings to it, review the Help section of the HCI program. Recommended is to print those sections of Help that you consider appropriate for your interface activities.

The TX1 He checks for a connection to the Data Port once every second while the Surface Main is displayed. Checks are not made if the Wet Activation contacts are wet.

When the PC Interface cable is plugged in, the graphic PC COMM is displayed with a 2 minute countdown timer that runs until the connection is conrmed, then the graphics PC COMM CONNECTED are displayed until completion of the upload or download operation.

PC REQUIREMENTS:

• IBM®, or compatible, PC with USB Port

• Intel® Pentium 200 MHz or better microprocessor

• Microsoft® Windows® 2000, XP, Vista, or 7

• Super VGA card or compatible video graphics adaptor (256 color or greater) with a minimum 800 X 600 pixel screen area of display settings

• 16MB of available RAM

• 20MB of available hard drive storage

• Mouse

• CD ROM drive

• Printer For software updates, refer to the Hollis web site at ->> www.HollisGEAR.com For support, call Hollis Support toll free at ->> (510)729-5110, 8 AM TO 5 PM USA

Pacic time.

TX1 He

(a - data port)

FTM

PC COMM

120 SECONDS

PCI CABLE (connected)

PC COMM

CONNECTED

PCI CONNECTION

(conrmed)

SURF

GTR

TAT

min

GTR

TAT

min

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TX1 He OPERATING MANUAL

CARE AND CLEANING

Protect your unit from shock, excessive temperatures, exposure to chemicals, and tampering. Protect the lens against scratches with a Instrument Lens Protector. Small scratches will naturally disappear underwater.

• Soak and rinse the TX1 He in fresh water at the end of each day of diving, and check to ensure that the areas around the low pressure (depth) sensor, PC interface data port, and buttons are free of debris or obstructions. Soak and rinse the regulator with the transmitter attached.

• To dissolve salt crystals, use lukewarm water or a slightly acidic bath (50% white vinegar/50% fresh water). After removal from the bath, place the TX1 He and the regulator assembly with transmitter under gently running water and towel dry before storing.

• Transport your TX1 He system cool, dry, and protected.

INSPECTIONS AND SERVICE

Your TX1 He should be inspected annually by an Authorized Hollis Dealer who will perform a factory prescribed function check and inspection for damage or wear. To keep the 2 year limited warranty in effect, this inspection must be completed one year after purchase (+/- 30 days).

Hollis recommends that you continue to have an inspection performed every year to ensure it is working properly.

The costs of annual inspections, or inspections relating to water tight integrity, are not covered under the terms of the 2 year limited warranty.

To Obtain Service:

Take your TX1 He to your local Authorized Hollis Dealer.

TX1 He

(a - depth sensor, b - data port)

If required to return your TX1 He to the Hollis USA factory:

• Obtain an RA (Return Authorization) number by contacting Hollis USA at (510)7295110 or send an e-mail to [email protected].

• Record all dive data in the Log and/or download the data stored in memory. All data will be erased during factory service.

• Package it using a protective cushioning material.

• Include a legible note stating the specic reason for return, your name, address,

daytime phone number, serial number(s), and a copy of your original sales receipt and Warranty Registration.

• Send freight prepaid and insured using a traceable method.

• Non-warranty service must be prepaid. COD is not accepted.

• Additional information is available on the Hollis web site HollisGear.com or on the local Hollis web site that serves your global region.

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TX1 He OPERATING MANUAL

BATTERY REPLACEMENT

The procedures that follow must be closely adhered to avoid entrance of water into the unit. Damage due to improper Battery replacement (or subsequent leakage of moisture into the unit) is not covered by the TX1 He's 2 year warranty.

When replacing the Battery in the TX1 He, it is recommended that you also consider replacing the Battery(s) in the Transmitter(s) to be used, and vice-versa.

The Battery Compartment should only be opened in a dry and clean environment with extreme care taken to prevent the entrance of moisture or dust.

As an additional precautionary measure to prevent formation of moisture in the Battery Compartment, it is recommended that the Battery be changed in an environment equivalent to the local outdoor temperature and humidity (e.g., do not change the Battery in an air conditioned environment then take it outside during a hot sunny day).

Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged. If there is any sign of moisture inside the unit, DO NOT attempt to use it for diving until it receives proper service by the Hollis factory or an Authorized Regional Facility.

OPEN

TX1 He

(cover removal)

Data Retention

When the battery is removed, settings* and calculations for repetitive dives are retained in volatile memory until a new battery is installed. You will have the choice of saving or deleting the data (see page 70).

*Date will have to be set, Time may require adjustment for the time duration that the battery remains out of the unit.

Battery Cover Removal

• Locate the Battery Compartment on the back of the module.

• While applying steady inward pressure on the clear Battery Cover, rotate the Cover Ring clockwise 10 degrees (using a battery replacement tool).

• Lift the Cover Ring up and away from the Housing.

• Remove the clear Battery Cover.

Battery Removal

• Remove the Retaining Bar located across the lower portion of the Battery.

• Remove the Cover O-ring. DO NOT use tools.

• Using care not to damage the Battery Contacts, slide the Battery up and out of the right side of the Battery Compartment.

DO NOT allow a metal object to short circuit the top of the Battery which is positive (+) to the negative ( - ) contact of the Compartment.

OPEN

TX1 He RELEASE COVER

RING

(a - retaining bar, b - contacts)

TX1 He

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TX1 He OPERATING MANUAL

Inspection

• Closely check all of the sealing surfaces for any signs of damage that might impair proper sealing.

• Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged.

• Remove the Battery Cover O-ring and inspect it for any signs of deterioration or deformity. DO NOT use tools to remove the O-ring.

• To ensure proper sealing, O-ring replacement is highly recommended each time the Battery is replaced.

• Closely examine the Battery Cover and Housing for any signs of damage that might prevent proper threading.

• Closely examine the inside of the Battery Compartment for any signs of corrosion indicating entrance of moisture into the unit.

! WARNING: If damage, moisture, or corrosion is found, return your unit to an Authorized Hollis Dealer, and DO NOT attempt to use it until it has received factory prescribed service.

TX1 He Battery Installation

• Slide a new 3 volt CR2450 Lithium Battery, negative ( - ) side down into the cavity of the battery compartment. Slide it in from the right side and ensure that it slides under the contact clip on the left rim of the cavity.

• Orient the Retaining Bar across the lower portion of the Battery and carefully push it down into position.

• Replace the Cover O-ring with a new one which must be a genuine Hollis part that can be purchased from an Authorized Hollis Dealer.

Use of any other O-ring will void the warranty.

• Lightly lubricate the new Cover O-ring with silicone grease and place it on the inner rim of the Battery Cover, and ensure that it is evenly seated.

• Slide the Cover Ring, top portion rst (small opening), onto your thumb.

• Carefully place the Cover (with O-ring) into position on the rim of the Battery Compartment, then press it completely and evenly down into place with your same thumb.

• Maintain the Cover securely in place and, using your other hand, slide the Cover Ring off your thumb and into position around the Battery Compartment. The tabs on

the Ring t down into the slots located at the 2 and 9 o'clock positions.

• Using your ngers, turn the Ring counter clockwise 5 degrees until the tabs engage,

then tighten it 5 more degrees by turning it counter clockwise with the aide of a battery removal tool.

TX1 He BATTERY & HOUSING

(installed, a - retaining bar)

TX1 He COVER & RING

(a - battery cover)

TX1 He TIGHTEN COVER

RING

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TX1 He OPERATING MANUAL

Testing

> Ensure that the LCD is clear and sharp in contrast. If any portions are missing or appear dim, or if a Low Battery condition is indicated, return the TX1 He with Transmitter to an Authorized Hollis Dealer for evaluation before use. > During 24 hours after completion of a dive, the graphic DATA with selections SAVE and CLEAR will be displayed giving you the option to retain or delete settings and NiO2 calculations for repetitive dives.

• Press the A button to toggle between SAVE and CLEAR.

• Press the S button to save the selection.

DATA >SAVE? CLEAR?

SELECT ITEM

> Graphics DATA SAVED (or CLEARED) with CAL COMPASS appear for 3 seconds, then operation reverts to the Compass CAL screen. > Calibrate the Compass. Refer to page 63. > Verify all Set Points prior to diving.

• Pressurize the Regulator assembly (with Transmitter).

• Verify that the Link icon is displayed.

• Check the TMT Status screens. Refer to page 23.

TRANSMITTER BATTERY REMOVAL

Locate the Battery Cover on the end of the housing:

• Apply a coin to the recessed slot of the Cover and turn it counter clockwise out of the housing.

• Remove the Battery and discard it according to local regulations governing disposal of Lithium batteries.

TRANSMITTER BATTERY INSTALLATION

• Lightly lubricate the new Battery Cover O-ring with silicone grease and install it onto the Battery Cover. DO NOT roll the O-ring over the Threads, instead stretch it slightly to work it down over the slotted end of the Cover into the groove at the base of the threads.

• The O-ring must be a genuine Hollis part that can be purchased from an Authorized Hollis Dealer.

DATA

SAVED

CAL COMPASS

DATA SAVED

OPEN

TMT COVER REMOVAL

Use of any other O-ring will void the warranty.

• Place a new 3 volt CR2 Lithium Battery (Duracell model DL-CR2 or equivalent) positive (+) side down into the Battery compartment with the negative end facing up/ out.

• Ensure that the Battery is properly oriented and the Cover O-ring is evenly seated around the Cover.

• Carefully place the Cover (with Spring) into the housing and turn clockwise slowly by hand to ensure proper threading.

• Apply a coin and tighten until secure. The outer surface of the Battery Cover should

be ush with the outer surface of the housing.

INSTALLING COVER O-RING

BATTERY ORIENTATION

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INSTALLING A TRANSMITTER ON A REGULATOR

• Remove the existing pressure gauge and high pressure hose, or the high pressure port plug from the port marked HP using the proper size hex key.

• Lightly lubricate the O-ring and threads of the Transmitter tting with a halocarbon based lubricant such as Tribolube® 71 or Christo-Lube® MCG111.

• Thread the Transmitter clockwise by hand into the regulator's HP port and tighten until secure with an appropriate sized open end wrench.

• Attach the regulator First Stage to a full scuba tank and pressurize by slowly open-

ing the tank valve, listening for any indication of air leaking around the tting.

• If air leakage is present, DO NOT use, take the complete regulator assembly to an Authorized Hollis Dealer for inspection and service.

TRANSMITTER COMPATIBILITY WITH NITROX

When packaged and shipped from the factory, Hollis Transmitters are rated for use with compressed Air, Nitrox, and Trimix breathing gas mixtures containing up to 99% O2 by volume and with 100% O2.

ALTITUDE SENSING AND ADJUSTMENT

Prior to the rst dive of a series of repetitive dives, Altitude (i.e., ambient pressure) is

measured upon activation then every 15 minutes until a dive is made.

> Measurements are only taken when the unit is dry.

> Two readings are taken, the second reading 5 seconds after the rst. The readings

must be within 1 foot (30 cm) of each other to record that ambient pressure as the current Altitude. > No adjustments are made during any time that the Wet Contacts are bridged. When diving in high altitude waters from 3,001 to 14,000 feet (916 to 4,270 meters), the TX1 He automatically adjusts to these conditions providing corrected Depth, and reduced No Deco and O2 Times at intervals of 1,000 feet (305 meters).

At an elevation of 3,001 feet (916 meters), Depth calibration automatically changes from feet of seawater to feet of fresh water. This is the rst adjustment to the algorithm.

The TX1 He will not function above 14,000 feet (4,270 meters).

RESET DURING A DIVE

The intent of the feature is to assist the diver by providing indication of Depth during the ascent and encourage return of the affected unit to the factory for evaluation prior to further use.

If the TX1 He Resets (i.e.; is On, turns Off, then turns On again) for any reason during any dive, inert gas, O2, and GTR calculations are terminated (upon turning Off). Upon turning On, the graphic ERROR and the UP Arrow icons appear solid, and Current Depth is displayed. No other information is displayed. The Backlight remains operational.

Upon surfacing, the graphic ERROR is displayed solid for 5 seconds, then the unit will shut off with operation blocked permanently, even if the battery is replaced and attempts are made to reactivate the unit.

! WARNING: In the unlikely event that this should ever happen, DO NOT continue diving with the unit, return it to the factory as soon as possible.

ERROR

PO2

BAR

ERROR

(during dive)

ERROR

PO2

BAR

ERROR

(after surfacing)

FTM

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WRIST STRAP

The TX1 He allows for two different style wrist straps the optional shock cord version (P/N 204.2365) and the standard elastic band version. The shock cord version is excellent if you will routinely mount the TX1 He in the same position and use the same thermal protection. In this scenario the shock cord version will only need to be

adjusted once. If you nd that you are changing congurations, environments, and switching from drysuits to wetsuits routinely, you may nd the elastic band version

more convenient.

Strap Removal

There are two retaining screws holding the wrist strap to the TX1 He.

• Using two small blade style screwdrivers, turn the opposing screw heads counter

clockwise to remove. It may be necessary to use a ne needle or pick to pull the

screws from the TX1 module boot if they do not drop out. Be careful to not scratch or damage any parts in doing so.

• Repeat the above step for the other retaining screw.

• With the retaining screws removed, the strap should lift away from the computer body.

Strap Replacement

Installing the shock cord or elastic band versions is essentially the same.

• Align and hold the strap end or plastic base in place on the computer body as shown.

• While holding the strap end or plastic base in place, slide the long screw post through the body and strap end or plastic base.

• On the opposing side thread and tighten the retaining screw clockwise into the

screw post with a small at blade screwdriver*. DO NOT overtighten. It will be neces- sary to hold one end stationary with a small at blade screwdriver when doing this.

*The threads of the screws must be clean, and a drop of medium strength liquid thread lock should be applied to the retaining screw before installation.

• Repeat the above steps for the other strap end and retaining screw.

SHOCK CORD WRIST STRAP

ELASTIC BAND

WRIST STRAP

REMOVING RETAINING

SCREW

REPLACING SCREW

(shock cord version)

REPLACING SCREW

(elastic band version)

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Adjusting the Shock Cord Version (P/N 204.2365)

The shock cord should be tted in position over any gloves, wetsuit, or drysuit. Keep

in mind neoprene compresses with depth, and compensate the tension accordingly.

• Knot one end of the shock cord.

• Thread the other end of the shock cord through the eyelets, as shown in sequence (arrow 1 - 4).

• Pull the loose end until the proper tension is reached.

• Then tie a new knot to hold the tension.

• Cut the excess shock cord*. Then burn the freshly cut end of the shock cord with a match or lighter to avoid future fraying.

*You may want to try the new shock cord length on an actual dive before cutting the shock cord. Once the shock cord is cut too short, it will need to be replaced to lengthen once again.

ADJUSTING THE

SHOCK CORD

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TECHNICAL DATA

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SPECIFICATIONS

CAN BE USED AS

• Dive Computer (Air, Nitrox, or Trimix) with up to 6 Gases, 6 Transmitters, and gas mixes containing up to 100% O2.

• Digital Depth Gauge/Timer with up to 6 Transmitters.

• Compass.

DIVE COMPUTER PERFORMANCE

• Bühlmann ZHL-16c w/Gradient Factors, algorithm.

• Decompression in agreement with Bühlmann ZHL-16c.

• No Deco Deep Stops >> Morroni, Bennett.

• Deco Deep Stops >> Blatteau, Gerth, Gutvik.

• Altitude >> Bühlmann, IANTD, RDP (Cross).

• Altitude corrections and O2 limits based on NOAA tables.

TRANSMITTERS (TMTs)

• Battery and Pressure check > every 2 seconds when awake

• Startup

> Pressure ≥ 120 PSI (8 BAR) > Battery ≥ 2.75 volts

• Shutdown

> Pressure < 50 PSI (3.5 BAR)

TMT Compatibility with Nitrox

• When packaged and shipped from the factory, Hollis Transmitters are rated for use with compressed Air and Nitrox mixtures containing up to 99% O2 by volume and with 100% O2.

OPERATIONAL PERFORMANCE

Function: Accuracy:

• Depth ±1% of full scale

• Timers 1 second per day

Dive Mode Activation:

• Must rst be activated by button press, if Wet Activation is set OFF.

• Automatic by immersion in water, if Wet Activation is set ON.

• Cannot be manually activated deeper than 4 FT (1.2 M), if Wet Activation is set OFF.

• Cannot operate as a DC at elevations higher than 14,000 feet (4,270 meters).

Unit Shutoff:

• 2 hours after activation, if no dive conducted.

• 24 hours after conducting a dive, if no further dives conducted.

Dive Counter:

• NORM/GAUGE displays Dives #1 to 24 (0 if no dive made yet).

• Resets to Dive #1, upon diving (after 24 hours with no dives).

Dive Log Mode:

• Stores 24 most recent NORM/GAUGE dives in memory for viewing.

• After 24 dives, adds 25th dive in memory and deletes the older dive.

Altitude:

• Operational from sea level to 14,000 feet (4,270 meters) elevation.

• Measures ambient pressure upon activation and every 15 minutes while in Surface modes.

• Does not measure ambient pressure when Wet.

• Compensates for Altitudes above sea level beginning at 3,001 feet (916 meters) elevation and every 1,000 feet (305 meters) higher.

Power:

• Battery (1) 3 vdc, CR2450, Lithium battery (Panasonic or equivalent)

• Transmitter Battery (1) 3 vdc, CR2, .75 Ahr, Lithium battery (Duracell model DL-CR2 or equivalent)

• Shelf life Up to 5 years

• Replacement User replaceable (annual recommended)

• Use Life 1 year or 300 dive hours if (2) 1 hour dives per dive day

• Use Life (Transmitter) 300 dive hours if (2) 1 hour dives per dive day

Battery Indicator:

• Warning >> icon on solid when ≤ 2.75 volts, Battery change recommended.

• Alarm >> icon on ashing when ≤ 2.50 volts, change the Battery, will not function.

Operating Temperature:

• Out of the water >> between 20 °F and 140 °F (-6 and 60 °C).

• In the water >> between 28 °F and 95 °F (-2 and 35 °C).

SPECIFICATIONS (CONTINUED)

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BAR GRAPHS:

TLBG segments

• No Deco Normal zone 1 to 3

• No Deco Caution zone 4

• Decompression zone 5 (all)

VARI 60 FT (18 M) & Shallower Deeper than 60 FT (18 M) segments FPM MPM segments FPM MPM 0 0 - 10 0 - 3 0 0 - 20 0 - 6

• Normal zone 1 11 - 15 3.5 - 4.5 1 21 - 30 6.5 - 9 Normal zone 2 16 - 20 5 - 6 2 31 - 40 9.5 - 12 Normal zone 3 21 - 25 6.5 - 7.5 3 41 - 50 12.5 - 15

• Caution zone 4 26 - 30 8 - 9 4 51 - 60 15.5 - 18

• Too Fast zone (ashing) 5 (all) > 30 > 9 5 (all) > 60 > 18

NUMERIC DISPLAYS: Range: Resolution:

• Time of Day 0:00 to 23:59 hr:min 1 minute

• PCI Countdown Timer 1:59 to 0:00 min:sec 1 second

• Altitude Level Sea, EL-2 to EL-7 1 (level)

• Time to Fly 23:50 to 0:00 hr:min 1 minute

• Time to Desaturate 23:50 to 0:00 hr:min 1 minute

• Temperature 0 to 99°F (-18 to 60°C) 1°F (C)

• Depth (display) 0 to 400 FT (120 M) 1 FT (0.1/1 M )

• Max Op Depth (NORM) 400 FT (120 M)

• Max Op Depth (GAUGE) 400 FT (120 M)

• Tank Pressure 0 to 5000 PSI (345 BAR) 5 PSI (1 BAR)

• NORM/GAUG SI Time 0:00 to 23:59 hr:min 1 minute

• NORM/GAUG Dive Number 0 to 24 1 (dive)

• NORM/GAUG EDT 0 to 999 min 1 minute

• NORM DTR 0 to 999 min 1 minute

• NORM/GAUG GTR 0 to 199 min 1 minute

• FO2 (1, 2, 3, 4, 5, 6) Set Points Air, 21 to 100 % 1 %

• FHe (1, 2, 3, 4, 5, 6) Set Points 0 to 93% 1 %

• PO2 Value 0.00 to 5.00 ATA 0.01 ATA

• O2 Saturation 0 to 100 % 1 %

• GF High 10 to 90 1

• GF Low 10 to 90 1

• No Deco Deep Stop Time 2:00 to 0:00 min:sec 1 second

• No Deco Safety Stop Time 5:00 to 0:00 min:sec 1 second

• Safety Stop Timer 0:00 to 9:59 min:sec 1 second

• GAUGE Dive Run Timer 0 to 999 min 1 minute

• Deco Stop Time 1 to 99 min 1 minute

• Total Ascent Time 1 to 199 min 1 minute

• Violation Countdown Timer 23:50 to 0:00 hr:min 1 minute

• Compass Heading 001 to 360° 001°

• Compass Op Time Remaining 15 to 1 sec 1 sec

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! WARNING: If your TX1 He stops working for any reason while operating, it is important that you have anticipated this possibility and are prepared for it. This is an important reason for not pushing the tables, oxygen exposure limits, and a critical reason to avoid entering decompression, without proper training. If you dive in situations where your trip would be ruined or your safety would be jeopardized by losing the use of your TX1 He, a backup instrument system is highly recommended.

FCC COMPLIANCE:

This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1.) this equipment may not cause harmful interference, and 2.) this equipment must accept any interference received, including interference that may cause undesired operation.

FCC INTERFERENCE STATEMENT:

This equipment has been tested and found to comply with the limits for an Intentional Radiator, a Class B Digital Device, pursuant to Part 15 of FCC Rules, Title 47 of the Code of Federal Regulations. These rules are designed to provide reasonable protection against harmful interference in a commercial or residential installation. This equip-ment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician.

! WARNING: Changes or modication to this unit not expressly approved by HOLLIS/2002 Design

could void the user's authority to operate the equipment.

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INSPECTION / SERVICE RECORD

TX1 HE SERIAL NUMBER:

TX1 HE FIRMWARE REV:

TRANSMITTER 1 SERIAL NUMBER:

TRANSMITTER 2 SERIAL NUMBER:

TRANSMITTER 3 SERIAL NUMBER:

TRANSMITTER 4 SERIAL NUMBER:

TRANSMITTER 5 SERIAL NUMBER:

TRANSMITTER 6 SERIAL NUMBER:

DATE OF PURCHASE:

PURCHASED FROM:

Below to be lled in by an Authorized Hollis Dealer:

Date Service Performed Dealer / Technician

HOLLIS USA

2002 Davis Street

San Leandro, CA 94577

Tel: (510) 729-5110

Fax: (510) 729-5115

Web: www.HollisGear.com

E-mail: [email protected]

International Ofces

See (http://hollisgear.com/international.asp) for current contact info.

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