Suunto D9tx User Manual
  1. Manuals
  2. Brands
  3. Suunto Manuals
  4. Diving Instrument
  5. D9tx
  6. User manual
Suunto D9tx User Manual

Suunto D9tx User Manual

Wristop dive computer
Hide thumbs Also See for Suunto D9tx:
Table of Contents

Advertisement

Quick Links

Download this manual
en
Suunto D9tx
User's GUide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Suunto D9tx and is the answer not in the manual?

Questions and answers

Related Manuals for Suunto Suunto D9tx

Summary of Contents for Suunto Suunto D9tx

  • Page 1 Suunto D9tx User’s GUide...

  • Page 2: Table Of Contents

    1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS ....8 2. WARNINGS, CAUTIONS, AND NOTES ..........9 3. SUUNTO USER INTERFACE ............20 3.1. Navigating in the menus ............21 3.2. Button symbols and functions ........... 23 4. GETTING STARTED ..............25 4.1.
  • Page 3 5.2. Emergency ascents .............. 42 5.3. Dive computer limitations ............42 5.4. Freediving ................. 43 5.5. Audible and visual alarms ............43 5.6. Error conditions ..............48 5.7. Wireless transmission ............49 5.7.1. Installing the wireless transmitter .......... 49 5.7.2. Pairing and code selection ..........50 5.7.3.
  • Page 4 5.9.2. DIVE mode activation ............65 5.9.3. Battery power indication ............ 68 5.9.4. Diving at altitude ............. 69 5.9.5. Personal adjustments ............70 5.10. Safety Stops ..............73 5.10.1. Recommended Safety Stops ..........73 5.10.2. Mandatory Safety Stops ..........74 5.11.
  • Page 5 7.6.2. Dive history ..............106 7.7. Suunto DM4 ..............108 7.8. Movescount ..............109 8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER ..111 9. BATTERY REPLACEMENT ............114 9.1. Computer battery replacement ..........114 9.2. Wireless transmitter battery replacement ........115 9.2.1.
  • Page 6 10.2. Suunto RGBM ..............121 10.2.1. Suunto Technical RGBM decompression model ..... 122 10.2.2. Diver safety and Suunto Technical RGBM model ....123 10.2.3. Altitude diving ............. 124 10.3. Oxygen exposure .............. 125 11. INTELLECTUAL PROPERTY ............126 11.1. Trademark ..............126 11.2.

  • Page 7: Welcome To The World Of Suunto Dive Computers

    1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS Suunto D9tx wristop dive computer is designed to help you get the most out of your diving. Suunto D9tx is the world’s first wristop sized dive computer to integrate a tilt-com- pensated 3D digital compass, wireless tank pressure reception, and trimix functions.It...

  • Page 8: Warnings, Cautions, And Notes

    Before you go on to read the user's guide itself, it is extremely important that you read the following warnings. These warnings are intended to maximize your safety while using Suunto D9tx and must not be ignored. YOU MUST READ the leaflet and user guide for your dive WARNING computer.
  • Page 9 NOT FOR PROFESSIONAL USE! Suunto dive computers WARNING are intended for recreational use only. The demands of com- mercial or professional diving may expose the diver to depths and conditions that tend to increase the risk of decompression illness (DCI). Therefore, Suunto strongly recommends that the device not be used for any commercial or professional diving activities.
  • Page 10 DCI. As an added measure of safety, you should consult a physician regarding your fitness before diving. SUUNTO STRONGLY RECOMMENDS THAT SPORT WARNING DIVERS LIMIT THEIR MAXIMUM DEPTH TO 40 M/130 FT OR TO THE DEPTH CALCULATED BY THE COMPUTER...
  • Page 11 DIVES WITH REQUIRED DECOMPRESSION STOPS ARE WARNING NOT RECOMMENDED. YOU SHOULD ASCEND AND BEGIN DECOMPRESSION IMMEDIATELY WHEN THE DIVE COMPUTER SHOWS YOU THAT A DECOMPRESSION STOP IS REQUIRED! Note the blinking ASC TIME symbol and the upward pointing arrow. USE BACK-UP INSTRUMENTS! Ensure that you use back- WARNING up instrumentation, including a depth gauge, submersible pressure gauge, timer or watch, and have access to decom-...
  • Page 12 YOU ARE ADVISED TO AVOID FLYING ANY TIME THE WARNING COMPUTER COUNTS DOWN THE NO-FLY TIME. ALWAYS ACTIVATE THE COMPUTER TO CHECK THE REMAINING NO-FLY TIME PRIOR TO FLYING! Flying or traveling to a higher altitude within the no-fly time can greatly increase the risk of DCI.
  • Page 13 THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL WARNING PERCENTAGE VALUES OF OXYGEN CONCENTRATION. DO NOT ROUND UP FRACTIONAL PERCENTAGES! For example, 31.8% oxygen should be entered as 31%. Rounding up will cause nitrogen percentages to be understated and will affect decompression calculations. If there is a desire to adjust the computer to provide more conservative calculations, use the personal adjustment feature to affect decompression cal- culations or reduce the PO...
  • Page 14 SET THE CORRECT PERSONAL ADJUSTMENT MODE! WARNING Whenever it is believed that factors that tend to increase the possibility of DCI exist, it is recommended that you use this option to make the calculations more conservative. Failure to select the correct Personal Adjustment setting will result in erroneous dive and planning data.
  • Page 15 NEVER ASCEND ABOVE THE CEILING! You must not as- WARNING cend above the ceiling during your decompression. In order to avoid doing so by accident, you should stay somewhat below the ceiling. DO NOT DIVE WITH A CYLINDER OF ENRICHED AIR IF WARNING YOU HAVE NOT PERSONALLY VERIFIED ITS CONTENTS AND ENTERED THE ANALYZED VALUE INTO YOUR DIVE...
  • Page 16 Failure to take action to reduce oxygen exposure after the warning is given can rapidly increase the risk of oxygen tox- icity, injury, or death Suunto recommends that you receive training in Free diving WARNING techniques and physiology before conducting breath hold dives.
  • Page 17 Using the Suunto Dive Planner software is not a substitute WARNING for proper dive training. Diving with mixed gases has dangers that are not familiar to divers diving with air. To dive with trimix, triox, heliox and nitrox or all of them, divers must have special- ized training for the type of diving they are doing.
  • Page 18 It is not possible to change to AIR mode after a dive in MIXED NOTE mode, before the No-fly time has elapsed. When planning both air and mixed gas dives during the same dive series, you should set the instrument in MIXED mode and modify the gas mix accordingly.

  • Page 19: Suunto User Interface

    3. SUUNTO USER INTERFACE Present Depth Daily Alarm Indicator Active Water Contact Indicator Dive Alarm Indicator Diver Attention Symbol Current Time Display No-Fly Icon Mode Indicator No-Decompression Time T otal Ascent Time Ceiling Depth Safety Stop Indicator Remaining Air Time...

  • Page 20: Navigating In The Menus

    3.1. Navigating in the menus Suunto D9tx has four main operating modes - TIME mode (TIME), DIVE mode (DIVE), PLAN mode (PLAN), and MEMORY mode (MEM). It also has a COMPASS submode, which can be activated from either TIME or DIVE modes, and a APNEA TIMER sub- mode, which can be activated from the TIME mode.
  • Page 21 COMPASS APNEA TIMER SETTINGS SETTINGS Calibrate Ventilation Declination Increment Timeout Repeats TIME DIVE PLAN LIGHT LIGHT LIGHT LIGHT SETTINGS SETTINGS SUB-MODES SUB-MODES Alarm Gases Logbook Time Personal/Altitude Mixed History Dual Time Tank Press Pairing Gauge Date Tank Press Alarm Free Units Depth Alarm Backlight...

  • Page 22: Button Symbols And Functions

    3.2. Button symbols and functions The table below explains the main functions of the dive computer's buttons. The buttons and their use is explained in more detail in the relevant sections of the user's guide. Table 3.1. Button symbols and functions Symbol Button Press...
  • Page 23 Symbol Button Press Main functions Toggle between alternative displays Short Change submode Increase values Activate gas switching in MIXED mode Long Activate Apnea Timer in TIME mode Toggle between alternative displays DOWN Short Change submode Decrease values Enter Setting mode DOWN Long Toggle between ceiling and remaining air time display...

  • Page 24: Getting Started

    BEFORE getting into the water. 4.1. TIME mode settings The first thing to do with your Suunto D9tx is to set the TIME mode shortcuts: the time, alarm, dual time, date, units, backlight, contrast, and tones.
  • Page 25 The seconds display reverts to date display after 5 minutes NOTE in order to save battery power. The display is illuminated by holding down the MODE button NOTE for more than 2 seconds. Now that after you know how to toggle between the shortcuts, you can start to set them.

  • Page 26: Setting The Alarm

    4.1.1. Setting the alarm The dive computer has a daily alarm function. The alarm can be set to be activated only once, on weekdays or every day. When the daily alarm activates, the screen blinks and the alarm sounds for 60 seconds. Press any button to stop the alarm. ADJUST WITH UP AND DOWN BUTTONS.

  • Page 27: Setting The Dual Time

    4.1.3. Setting the dual time In the Dual Time setting mode, you are able to select the hour and minute of a dual time, which is useful when traveling to a different time zone. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON.

  • Page 28: Setting The Backlight

    ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 4.1.6. Setting the backlight In the Backlight setting mode, you are able to turn the backlight ON or OFF and to define how long it stays on for (5, 10, 20, 30, or 60 seconds). When the backlight is turned OFF, it does not illuminate when NOTE an alarm sounds.

  • Page 29: Setting The Tones

    When the tones are off, there are no audible alarms. NOTE 4.2. Stopwatch The Stopwatch function in Suunto D9tx measures elapsed and split times. A separate stopwatch (dive timer) can also be used in the DIVE mode. For more in- formation, refer to Section 6.1.6. Stopwatch (Timer).

  • Page 30: Ac Water Contacts

    USE DOWN BUTTON TO START STOPWATCH AND TAKE A SPLIT TIME. THE UP BUTTON STOPS THE STOPWATCH. IF YOU HAVE TAKEN SPLIT TIMES, YOU CAN SCROLL THEM BY SHORT PRESSING THE UP BUTTON. LONG PRESSING UP RESETS THE STOPWATCH. 4.3. AC water contacts The water and data transfer contact is located on the side of the case.

  • Page 31: Learning How To Use Your Compass

    4.4. Learning how to use your compass Suunto D9tx is the first dive computer in the world to integrate a digital compass. It can be used both while diving and on the surface, and can be accessed by long-...

  • Page 32: Compass Display

    UP/DOWN buttons. 4.4.1. Compass display The Suunto D9tx displays the compass as a graphical representation of a compass rose. The rose displays the cardinal and half cardinal points, in addition to which, the current bearing is also displayed numerically.

  • Page 33: Locking A Bearing

    TO LOCK A BEARING, PRESS SELECT. The Suunto D9tx also provides help for navigating square and triangular patterns, as well as navigating a return heading. This is made possible by following graphical symbols in the center of the compass display: Table 4.1.

  • Page 34: Compass Settings

    COMPASS mode: Calibration Because of changes in the surrounding magnetic field, the Suunto D9tx electronic compass occasionally needs to be re-calibrated. During the calibration process, the compass adjusts itself to the surrounding magnetic field . As a basic rule, you should calibrate the compass whenever it does not seem to operate properly, or after replacing the dive computer's battery.
  • Page 35 Strong electromagnetic fields, such as power lines, stereo speakers, and magnets can affect the compass calibration. Therefore, it is advisable to calibrate the compass if your Suunto D9tx has been exposed to these fields. When traveling overseas, it is recommended that you recalib- NOTE rate the compass at the new location before using it.
  • Page 36 Move to another location and try to calibrate the compass again. If the calibration continues to fail, contact an authorized Suunto service center. Declination You can compensate for the difference between true north and magnetic north by adjusting the compass declination.

  • Page 37: Apnea Timer

    ADJUST WITH UP AND DOWN. ACCEPT WITH SELECT. Time-out You can set the compass time-out minutes. After the set time has passed from the latest button press, the dive computer returns to the TIME or DIVE mode from the COMPASS mode. ADJUST WITH UP AND DOWN.
  • Page 38 In the Apnea Timer, long press DOWN to enter settings in which you can define the duration of the ventilation period and the incremental increase/decrease in time for each cycle (repetition). You can adjust values with the UP and DOWN buttons.

  • Page 40: Before Diving

    SUUNTO dealer before diving with the dive computer. Always remember that YOU ARE RESPONSIBLE FOR YOUR OWN SAFETY! When used properly, Suunto D9tx is an outstanding tool for assisting properly trained, certified divers in planning and executing sport dives. It is NOT A SUBSTITUTE FOR CERTIFIED SCUBA INSTRUCTION, including training in the principles of decompres- sion.

  • Page 41: Emergency Ascents

    5.8.10. Setting the deep stops and Section 5.11. Deep stops. 5.2. Emergency ascents Before you dive, you must have the dive plan created with the Suunto Dive Planner printed out on a slate. You must also have a back-up plan for lost gases. In the unlikely...

  • Page 42: Freediving

    DCI. Therefore, FREEDIVING AFTER SCUBA DIVING IS NOT RECOMMENDED. You should avoid freediving, and not exceed 5 m/16 ft, for at least two hours after scuba diving. Suunto recommends that you receive training in freediving WARNING techniques and physiology before conducting breath hold dives.
  • Page 43 Table 5.1. Dive computer alarms Alarm type Sound pattern Duration High priority 2.4 s sound + 2.4 s break Low priority 0.8 s sound + 3.2 s break Table 5.2. Instructional beep Sound pattern Interpretation Ascending Start ascending Descending Start descending Descending- Change gas ascending...
  • Page 44 Table 5.3. Audible and visual alarm types Alarm type Alarm reason High priority alarm followed PO2 value is greater than the adjusted value. Current by "Start ascending" beep, depth is too deep for the gas in use. You should imme- repeated for the maximum of diately ascend or change to a gas with a lower oxygen three minutes.
  • Page 45 Alarm type Alarm reason Low priority alarm followed by No-decompression dive turns into a decompression "Start ascending" beep, stop dive. Depth is below the decompression floor sounded two times. The ASC level. You should ascend to, or above, the floor. TIME symbol blinks and an arrow points upwards.
  • Page 46 Alarm type Alarm reason Low priority alarm, sounded Cylinder pressure reaches the selected alarm pressure, two times. The Tank pres- 10 - 200 bar. Cylinder pressure reaches the fixed alarm sure symbol blinks. pressure, 50 bar. This alarm operates only if the pairing to the wireless tank pressure transmitter is performed correctly and the transmission of tank pressure data is not disrupted during the dive for any reason.

  • Page 47: Error Conditions

    Alarm type Alarm reason Low priority alarm, sounded Indicates the length of the surface time before a new once. The Surface time value dive. In the DIVE Free mode only. You can acknow- blinks. ledge the alarm. When the backlight is turned OFF, it does not illuminate when NOTE an alarm is activated.

  • Page 48: Wireless Transmission

    5.7. Wireless transmission In order to use the transmitter, the wireless integration needs to be enabled in your Suunto D9tx settings. To enable or disable the wireless integration, refer to Sec- tion 5.8.3. Setting the tank pressure pairing. 5.7.1. Installing the wireless transmitter When purchasing the Suunto D9tx, we strongly recommend that you have your Suunto representative attach the transmitter to the first stage of your regulator.

  • Page 49: Pairing And Code Selection

    (0.1–0.5m / 0.5–1 ft). The flash symbol is not displayed at this phase. By taking the Suunto D9tx unit close to the transmitter, it will store the received code and start receiving with full sensitivity and...
  • Page 50 Ensure that the transmitter is properly attached to the regulator’s HP port and that the regulator is properly attached to the cylinder. Ensure that the Suunto D9tx is turned on, and that the wireless integration is en- abled in the Suunto D9tx settings (Tank Press is set ON. For more information, refer to Section 5.8.3.
  • Page 51 To re-pair the transmitter with the new code and the Suunto D9tx dive computer: In the DIVE mode of the Suunto D9tx, long-press the DOWN button to enter the DIVE settings. Enter the Tank Press Pairing menu (Refer to Section 5.8.3. Setting the tank pressure pairing).

  • Page 52: Transmitting Data

    Short-press the MODE button to exit the DIVE settings. Take the Suunto D9tx unit close to the transmitter (the system must be pressurized to above 15bar/300 psi). The dive computer displays the received new code number and then start displaying the transmitted cylinder pressure. The wireless transmitter indicator (flash symbol) is displayed every time the Suunto D9tx re- ceives a valid signal.
  • Page 53 Table 5.4. Pressure transmission related displays Display Indication Figure No code stored, the Suunto unit is ready for pairing with the Cd:-- transmitter. Cd:10 Set Code. Code number can be between 01–40. The flash symbol is blinking. Pressure reading exceeds allowed - - - limit (over 360 bar/5220 psi).

  • Page 54: Dive Mode Settings

    5.8. DIVE mode settings Suunto D9tx has several user-definable functions, as well as depth and time-related alarms that you can set according to your personal preferences. The DIVE mode settings are dependent on the dive submode chosen (AIR, MIXED, GAUGE, FREE), so that, for example, trimix settings are only available in the MIXED submode.
  • Page 55 Setting AIR mode MIXED mode GAUGE mode FREE mode Depth notify alarm Dive time alarm Surf time notify alarm Sample rate Deep stop Air time Units The figure below shows how to enter the DIVE mode settings menu. USE UP AND DOWN BUTTONS TO TOGGLE BETWEEN DIVE SETTINGS.

  • Page 56: Setting The Gases

    In addition, the oxygen partial pressure limit must be set. You can either modify the dive plan with the Suunto Dive Planner or enter the correct values directly into the dive computer after analyzing the gas mixes in your cylinders.
  • Page 57 In order to minimize the risk of error during a dive, it is highly recommended that the mixes are set in the proper order. This means that as the mix number rises, so does oxygen content, and this is the order they are usually used during the dive. Before a dive, only enable the mixes you actually have available and remember to check the set values to ensure they are correct.

  • Page 58: Setting The Personal/Altitude Adjustments

    5.8.2. Setting the personal/altitude adjustments The current Altitude and Personal Adjustment settings are displayed in the startup screen when entering the DIVE mode. If the mode does not match the altitude or personal conditions (refer to Section 5.9.4. Diving at altitude and Section 5.9.5. Per- sonal adjustments), it is imperative that you enter the correct selection before diving.

  • Page 59: Setting The Tank Pressure Alarm

    ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.8.4. Setting the tank pressure alarm The tank pressure alarm can be set "ON" or "OFF" and in the range of 10–200 bar. The alarm is the secondary cylinder pressure alarm point. The alarm is activated when the tank pressure drops below the set limit.

  • Page 60: Setting The Depth Notify Alarm (Free Mode)

    ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.8.6. Setting the depth notify alarm (FREE mode) You can set five independent Depth Notify Alarms to indicate a certain depth, for ex- ample, start of free falling or mouth filling in freediving. ADJUST WITH UP AND DOWN BUTTONS.

  • Page 61: Setting The Surface Time Notify Alarm (Free Mode)

    5.8.8. Setting the surface time notify alarm (FREE mode) You can set the Surface Time Notify Alarm to indicate the length of the surface time before a new dive. Suunto starts counting the time automatically when you surface (at 0.5 m/1.6 ft).

  • Page 62: Setting The Deep Stops

    You can set the dive profile sample rate in free dive to 1, 2, or 5 seconds. The sample rate for gauge, mixed and air dives is to 10, 20, 30, or 60 seconds. The factory default setting is 20 seconds. ADJUST WITH UP AND DOWN BUTTONS.

  • Page 63: Setting The Units

    ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.8.12. Setting the units In the Unit settings you are able to choose between metric (meters/Celsius/bar) and imperial (feet/Fahrenheit/psi) units. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.9.

  • Page 64: Accessing Dive Mode

    5.9.1. Accessing DIVE mode The Suunto D9tx has four diving modes: AIR mode for diving with standard air only, MIXED mode for diving with oxygen and/or helium mixtures, FREE mode for freediving, and GAUGE mode for use as a bottom timer.
  • Page 65 (1.6) value. During a dive series (between two consecutive dives) the dive computer also displayes the current tissue saturation graph. A few seconds later the battery power indicator is shown. SUUNTO STRONGLY RECOMMENDS THAT SPORT WARNING DIVERS LIMIT THEIR MAXIMUM DEPTH TO 40 M /130 FT...
  • Page 66 A TISSUE SATURATION GRAPH IS DISPLAYED BETWEEN DIVES WHEN DIVE MODE IS ACTIVATED. ON X-AXIS THE FAST TISSUES ARE ON LEFT AND SLOW TISSUES ON RIGHT. ON Y-AXIS, CALCULATED PERCENTUAL TISSUE SATURATION VALUES BASED ON TECHNICAL RGBM ARE SHOWN. Y-AXIS RANGES FROM 0% TO 100%.

  • Page 67: Battery Power Indication

    the pressure transmitter is working (flash symbol blinks, cylinder pressure is dis- • played), and that there is no low battery warning displayed you have enough air for your planned dive. You should also check the pressure • reading against your back-up pressure gauge And, if set to MIXED mode, ensure that: the correct number of mixes is set and that the oxygen and helium percentages •...

  • Page 68: Diving At Altitude

    If the battery symbol is displayed in the Surface mode, or if the display is faded or weak, the battery may be too low to operate the dive computer, and battery replacement is recommended. For safety reasons, the backlight cannot be activated when NOTE the low battery warning is indicated by the battery symbol.

  • Page 69: Personal Adjustments

    Alt. adjustment Altitude range value 300–1500 m / 1000–5000 ft 1500–3000 m / 5000–10 000 ft Section 5.8.2. Setting the personal/altitude adjustments de- NOTE scribes how the Altitude value is set. Traveling to a higher elevation can temporarily cause a change WARNING in the equilibrium of dissolved nitrogen in the body.
  • Page 70 dehydration • personal settings in air/ean • previous history of DCI • stress • obesity • • patent foramen ovale (PFO) exercise on or after dive • This feature is used to adjust the computer to be more conservative, according to personal preference, by entering the suitable Personal Adjustment setting with the help of Table 5.7, Personal Adjustment settings.
  • Page 71 Table 5.7. Personal Adjustment settings Personal adjust- Condition Desired tables ment value Ideal conditions, excellent Progressively less conservative physical fitness, highly experi- enced with a lot of dives in the near past Ideal conditions, good physical fitness, well experienced with dives in the near past Ideal conditions Default...

  • Page 72: Safety Stops

    The reasons for performing a Safety Stop in- clude: reducing sub-clinical DCI, microbubble reduction, ascent control, and orientation before surfacing. The Suunto D9tx displays two different types of Safety Stops: Recommended Safety Stop and Mandatory Safety Stop. 5.10.1. Recommended Safety Stops With every dive over 10 meters, there is a three-minute countdown for the Recommen- ded Safety Stop, to be taken in the 3–6 m/10–20 ft range.

  • Page 73: Mandatory Safety Stops

    (5) seconds, the microbubble build-up is predicted to be more than is allowed for in the decompression model. The Suunto RGBM calculation model responds to this by adding a Mandatory Safety Stop to the dive. The time of this Mandatory Safety Stop depends on the severity of the ascent rate excess.

  • Page 74: Deep Stops

    5.11. Deep stops The Suunto Technical RGBM model calculates deep stops iteratively, placing the first stop about halfway between the maximum depth and the ceiling depth. After the first Deep stop is completed, another Deep stop will be prompted halfway to the ceiling, and so on until the ceiling depth is reached.
  • Page 75 If a deep stop is violated, it does not cause the dive computer to go into an error (Er) mode. However, a penalty time is added to the subsequent decompression. In the MIXED mode, the Deep stops are always activated. With Deep Stops ON, the Recommended Safety Stops will NOTE still be activated at the end of the dive.

  • Page 76: Diving

    6. DIVING This section contains instructions on how to operate the dive computer and interpret its displays. The dive computer is easy to use and read. Each display shows only the data relevant to that specific diving mode. 6.1. Diving in the AIR mode (DIVE Air) This section contains information on diving with standard air.

  • Page 77: Basic Dive Data

    6.1.1. Basic dive data During a No-decompression dive, the following information is displayed: your present depth in meters/feet • the available no-decompression time in minutes as NO DEC TIME • the ascent rate presented as a bar graph on the right side •...

  • Page 78: Bookmark

    It is possible to record bookmarks in the profile memory during a dive. These bookmarks are displayed when scrolling the profile memory on the display. The bookmarks are also shown as annotations in the downloadable Suunto DM4 software. The bookmark logs the depth, time, and water temperature, as well as compass...

  • Page 79: Tank Pressure Data

    To make a bookmark in the profile memory during a dive, press the SELECT button. A brief confirmation will be given. A BOOKMARK IS PLACED IN THE PROFILE MEMORY DURING A DIVE BY PRESSING THE SELECT BUTTON. 6.1.3. Tank pressure data When using the optional wireless pressure transmitter, the pressure of your scuba cylinder in bars (or psi) is shown digitally in the lower left corner of the alternative dis- play.
  • Page 80 The change in your air consumption is based on constant one second interval pressure measurements over 30–60 second periods. An increase in air consumption influences the remaining air time rapidly, while a drop in air consumption increases the air time slowly.

  • Page 81: Ascent Rate Indicator

    Low Air Pressure Warnings The dive computer will warn you with two (2) audible double beeps and a blinking pressure display when the cylinder pressure reaches 50 bar/700 psi. Two (2) double beeps are also heard when the cylinder pressure goes down to the user-selected alarm pressure, and when the remaining air time reaches zero.

  • Page 82: Safety Stops And Deep Stops

    DO NOT EXCEED THE MAXIMUM ASCENT RATE! Rapid WARNING ascents increase the risk of injury. You should always make the Mandatory and Recommended Safety Stops after you have exceeded the maximum recommended ascent rate. If this Mandatory Safety Stop is not completed, the decompres- sion model will penalize your next dive(s).

  • Page 83: Decompression Dives

    6.1.7. Decompression dives When your NO DEC TIME becomes zero, your dive changes into a decompression dive. Therefore, you must perform one or more decompression stops on your way to the surface. The NO DEC TIME on your display will be replaced by an ASC TIME, and a CEILING notation will appear.
  • Page 84 the time needed at the Mandatory Safety Stop (if any) • the time needed to reach the surface after the ceiling and Safety Stops have been • completed YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN WARNING DISPLAYED BY THE INSTRUMENT! The ascent time will increase if you: •...
  • Page 85 In such cases, it is more manageable to maintain an additional distance below the ceiling, to ensure that the waves do not lift you above the ceiling. Suunto recom- mends that decompression takes place deeper than 4 m/13 ft, even if the indicated ceiling is shallower.
  • Page 86 Display below the floor The blinking ASC TIME sign and an upward pointing arrow indicate that you are below the floor. You should start your ascent immediately. The ceiling depth is shown on the left side, and the minimum total ascent time on the right side of the center window. Below is an example of a decompression dive without Deep Stops, below the floor.
  • Page 87 Display at the ceiling zone When you reach the ceiling zone, the display will show you two arrows pointing at each other (the “hour glass” icon). Below is an example of a decompression dive at the ceiling zone. TWO ARROWS POINT AT EACH OTHER “HOUR GLASS”...

  • Page 88: Diving In Mixed Mode

    You must not dive again for at least 48 hours (refer to Section 5.6. Error conditions). 6.2. Diving in MIXED mode The MIXED mode is the second dive mode available in Suunto D9tx. The mode is used when diving with air or with oxygen- or helium-enriched gas mixes and it allows setting up to eight different gas mixes.
  • Page 89 To set the nitrox, trimix and/or heliox mixes, refer to Section 5.8.1. Setting the gases. Default gas mix settings In the MIXED mode, the Suunto D9tx allows you to set 1–8 gas mixes containing 8–99% oxygen and 0–92% helium. In the MIXED mode, the default setting is standard air (21% O and 0% He).

  • Page 90: Oxygen And Helium Displays

    In the MIXED mode, the maximum operational depth is calculated based on set O %, He% and PO values. If set to the MIXED mode, the Suunto D9tx will additionally show on the alternative display: the oxygen percentage, labeled O •...

  • Page 91: Oxygen Limit Fraction (Olf%)

    UP BUTTON TOGGLES BETWEEN PO OLF, DIVE TIME AND WATER TEMPERATURE. 6.2.3. Oxygen limit fraction (OLF%) If set to the MIXED mode, in addition to tracking the diver's exposure to inert gas, the instrument tracks the exposure to oxygen. These calculations are treated as entirely separate functions.

  • Page 92: Gas Change And Multiple Breathing Gas Mixes

    6.2.4. Gas change and multiple breathing gas mixes The Suunto D9tx allows gas changes to enabled gas mixes during the dive. When the maximum operating depth allows for a gas change, the dive computer prompts you to change the gas. When PO permits better decompression gas to be used, the dive computer prompts it automatically if it is set as primary.
  • Page 93 If no button is pressed in 15 seconds, the dive computer will NOTE go back to the dive display without changing the gas mix. Upon ascent, the computer prompts you to change gas when the PO level you have set for the next mix allows a gas change.

  • Page 94: Diving In The Gauge Mode (Dive Gauge)

    There is no ascent rate monitoring in the GAUGE mode. NOTE If you dive with the GAUGE mode, it is not possible to change NOTE between the modes before the no fly time has counted down. In GAUGE mode, the no-fly time is always 48 hours. 6.4.

  • Page 95: Day History

    The FREE mode does not provide decompression information. NOTE There is no ascent rate monitoring in the FREE mode. NOTE 6.4.1. Day History The Day History function shows the free dive history of your latest diving day. In the SURFACE mode you can enter the Day History by pressing the SELECT button. The Day History function shows the average depth of all dives, the deepest depth of the day as well as the time, the longest dive, and the cumulative dive time in hours and minutes, as well as the number of dives made during the day.

  • Page 96: Free Dive Time Limit

    6.4.2. Free dive time limit The FREE mode has a time limit of 10 minutes. After 10 minutes, Suunto D9tx will automatically change from Free Dive to Scuba Bottom Timer (GAUGE). After the dive, the no-fly time will countdown from 48 hours. Also, you will not be able to dive in AIR or MIXED modes until the no-fly time has counted down to zero.

  • Page 97: After Diving

    7. AFTER DIVING Once back at the surface, Suunto D9tx continues to provide post-dive safety information and alarms. Calculations to enable repetitive dive planning also help to maximize diver safety. Table 7.1. Alarms Symbol on display Indication Diver Attention Symbol - Extend Surface Interval...

  • Page 98: Dive Numbering

    Or, in the alternative displays, the following information will be shown: maximum depth of last dive in meters/feet • • dive time of last dive in minutes, shown as DIVE TIME the current time, shown as TIME • • the current temperature in °C/°F cylinder pressure in bar/psi (if enabled) •...

  • Page 99: Free Dive

    7.3. Repetitive dive planning The Suunto D9tx includes a dive planner that allows you to review the no-decompres- sion limits on a subsequent dive, taking the residual inert gas loading of previous dives into consideration.

  • Page 100: Dive Planning Mode (Plan Nodec)

    Following any dive that required a decompression stop, flying should be delayed • for at least 24 hours, and if possible, for 48 hours. Suunto recommends that flying is avoided until all the DAN and UHMS guidelines, • as well as the dive computer’s no-fly conditions, are satisfied.
  • Page 101 By pressing the UP/DOWN buttons, you can scroll the no-decompression limits in 3 m/10 ft increments ending at 45 m/150 ft. No-decompression limits longer than 99 minutes are displayed as “—“. During a dive series (between two consecutive dives) it is also possible to enter the surface interval time as a planning parameter. If the % is too high for the planned depth, NA is displayed instead of a numerical no-de- compression limit.

  • Page 102: Dive Numbering Shown During Dive Planning

    any calculated residual nitrogen • all dive history for the past four days • The no-decompression times given for different depths will therefore be shorter than before your first “fresh” dive. You can exit the DIVE PLANNING mode by pressing the MODE button. The DIVE PLANNING mode is disabled in GAUGE mode and NOTE in Error mode (see Section 5.6.

  • Page 103: Memory Mode

    7.6.1. Dive logbook (MEM Logbook) The Suunto D9tx has a very sophisticated, high capacity Logbook and Profile Memory. The data is recorded in the profile memory based on the selected sample rate. Dives shorter than the recording interval are not registered (refer to Section 5.8.9.
  • Page 104 THERE ARE THREE PAGES OF LOGBOOK DIVE INFORMATION. USE SELECT BUTTON TO SCROLL BETWEEN LOGBOOK PAGES I, II, AND III. THE DATA OF THE MOST RECENT DIVE IS SHOWN FIRST. YOU CAN SCROLL THE GRAPHICAL DIVE PROFILE ON PAGE III WITH UP BUTTON. Page I, main display maximum depth •...

  • Page 105: Dive History

    Page III depth/time profile of the dive • • water temperature tank pressure (if enabled) • Memory capacity depends on the selected sample rate. With NOTE factory default setting (20 s) and without transmitter data the capacity is approximately 140 hours. With transmitter data the capacity is minimum 35 hours.
  • Page 106 The maximum depth can be reset to 0.0 m/0 ft using the PC NOTE Interface cable and the downloadable Suunto DM4 software. Free Dive History The Free Dive History shows the deepest and the longest dives of all free dives, and the cumulative dive time in hours and minutes, as well as the total number of dives.

  • Page 107: Suunto Dm4

    The Suunto DM4 is an optional software that greatly enhances the functionality of your Suunto D9tx. With the DM4 software, you can download dive data from your dive computer to your laptop. After that, you can view and organize all the data recorded with your Suunto D9tx.

  • Page 108: Movescount

    To connect to Movescount: Go to www.movescount.com. Register and create your free Movescount account. Download and install the Suunto DM4 software from the Movescount.com website if you do not already have the DM4 installed on your laptop To transfer data: Connect your dive computer to your laptop.
  • Page 109 Follow the instructions on the DM4 on how to transfer your dives to your Movescount.com account.

  • Page 110: Care And Maintenance Of My Suunto Diving Computer

    8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COM- PUTER The SUUNTO dive computer is a sophisticated precision instrument. Although it is designed to withstand the rigors of scuba diving, you must treat it with the same proper care and caution as any other precision instrument.
  • Page 111 • Should you detect scratches, cracks or other such flaws on the display that may impair its durability, immediately have it replaced by your SUUNTO dealer or distributor. • Wash and rinse the unit in fresh water after every use.
  • Page 112 A leak must be corrected without delay as moisture may seriously damage the unit, even beyond repair. SUUNTO does not take any responsibility for damage caused by moisture in the dive computer unless the instructions of this manual are carefully followed.

  • Page 113: Battery Replacement

    9. BATTERY REPLACEMENT 9.1. Computer battery replacement It is advisable to contact an authorized Suunto service center NOTE for battery replacement. It is imperative that the change is made in a proper manner to avoid any leakage of water into the battery compartment or computer.

  • Page 114: Wireless Transmitter Battery Replacement

    9.2. Wireless transmitter battery replacement It is advisable to contact an authorized Suunto service center NOTE for transmitter battery replacement. It is imperative that the change is made in a proper manner to avoid any leakage of water into the transmitter.
  • Page 115 Check for any traces of leakage, or for any other damage. If there is a leak or any other damage, take the transmitter to an authorized Suunto representative or distributor for checking and repair. Check the condition of the O-ring. A defective O-ring may indicate sealing or other problems.

  • Page 116: Technical Data

    10. TECHNICAL DATA 10.1. Technical specifications Dimensions and weight: Dive Computer • Diameter: 49 mm/1.94 in • Thickness: 17 mm/0.68 in • Weight: 84 g/2.96 oz (without bracelet) Transmitter: • Max. diameter: 40 mm/1.57 in • Length: 80 mm/3.15 in •...
  • Page 117 Other displays • Dive time: 0 to 999 min, counting starts and stops at 1.2 m /4 ft depth • Surface time: 0 to 99 h 59 min • Dive counter: 0 to 99 for repetitive dives • No-decompression time: 0 to 99 min (- - after 99) •...
  • Page 118 It is recommended that the instrument be stored in a dry place at room temperature. Do not leave the dive computer in direct sunlight! NOTE Tissue calculation model: • Suunto Technical RGBM algorithm (developed by Suunto and Bruce R. Wienke, BSc, MSc, PhD) • 9 tissue compartments •...
  • Page 119 Battery: • One 3 V lithium battery: CR 2450 • Battery storage time (shelf life): Up to three years • Replacement: Every two years, or more often depending on dive activity • Life expectancy at 20°C/68°F: • 0 dives/year –> 2 years •...

  • Page 120: Suunto Rgbm

    It was developed in co-operation between Suunto and Bruce R. Wienke BSc, MSc, PhD. It is based on both laboratory experiments and diving data, including data from DAN.

  • Page 121: Suunto Technical Rgbm Decompression Model

    In the late 1990s Suunto implemented Dr. Bruce Wienke's RGBM bubble model to work with the M model. The first commercial products with the feature were Vyper and Stinger.

  • Page 122: Diver Safety And Suunto Technical Rgbm Model

    DCI. Suunto Technical RGBM model has many features that reduce the risk of DCI. The Suunto Technical RGBM algorithm adapts its predictions of both the effects of micro- bubble buildup and adverse dive profiles in the current dive series.

  • Page 123: Altitude Diving

    Always use the same personal and altitude adjustment settings CAUTION for the actual dive than for the planning. Increasing the per- sonal adjustment setting from the planned setting as well as increasing the altitude adjustment setting can lead to longer decompression times deeper and thus to larger required gas volume.

  • Page 124: Oxygen Exposure

    10.3. Oxygen exposure The oxygen exposure calculations are based on currently accepted exposure time limit tables and principles. In addition to this, the dive computer uses several methods to conservatively estimate the oxygen exposure. For example: The displayed oxygen exposure calculations are raised to the next higher percent- •...

  • Page 125: Intellectual Property

    11. INTELLECTUAL PROPERTY 11.1. Trademark Suunto is a registered trademark of Suunto Oy. 11.2. Copyright © Suunto Oy 08/2012. All rights reserved. 11.3. Patent notice Patents have been issued or applied for one or several features of this product.

  • Page 126: Disclaimers

    The CE mark is used to mark conformity with the European Union EMC directive 89/336/EEC. 12.2. EN 13319 EN 13319 is a European diving depth gauge standard. Suunto dive computers are designed to comply with this standard. 12.3. EN 250 / FIOH...

  • Page 127: Suunto Limited Warranty

    13. SUUNTO LIMITED WARRANTY Suunto warrants that during the Warranty Period Suunto or a Suunto Authorized Service Center (hereinafter Service Center) will, at its sole discretion, remedy defects in materials or workmanship free of charge either by a) repairing, or b) replacing, or c) refunding, subject to the terms and conditions of this Limited Warranty.
  • Page 128 Suunto does not warrant that the operation of the Product will be uninterrupted or error free, or that the Product will work in combination with any hardware or software provided by a third party.

  • Page 129: Disposal Of The Device

    14. DISPOSAL OF THE DEVICE Please dispose of the device in an appropriate way, treating it as electronic waste. Do not throw it in the garbage. If you wish, you may return the device to your nearest Suunto representative.

  • Page 130: Glossary

    GLOSSARY Air time The amount of dive time remaining, based on a calculation of cylinder pressure and ambient pressure and present air consumption. Altitude dive A dive made at an elevation greater than 300 m/1000 ft above sea level. Ascent rate The speed at which the diver ascends toward the surface.
  • Page 131 Suunto DM4 with Movescount, a software for managing your dives Decompression Time spent at a decompression stop, or range, before surfacing, to allow absorbed nitrogen to escape naturally from tissues Decompression range On a decompression stop dive, the depth range between the floor and the ceiling within which a diver must stop for some time during ascent.
  • Page 132 Half time After a change in ambient pressure, the amount of time required for the partial pressure of nitrogen in a theoretical compartment to go half way from its previous value to saturation at the new ambient pressure. Helium percentage or helium fraction in the breathing gas. Abbreviation for high pressure (= cylinder pressure).
  • Page 133 Oxygen limit fraction A term used by Suunto for the values displayed in the oxygen toxicity bar graph. The value is either the CNS% or the OTU%. Oxygen percentage or oxygen fraction in the breathing gas. Standard air has 21% oxygen.
  • Page 134 UHMS Abbreviation for Undersea and Hyperbaric Medical Society. Whole-body toxicity Another form of oxygen toxicity, which is caused by prolonged exposure to high oxygen partial pressures. The most common symptoms are irrita- tion in the lungs, a burning sensation in the chest, coughing and reduction of the vital capacity.
  • Page 135 0294751965 JAPAN 03 6831 2715 NETHERLANDS 0107137269 RUSSIA 4999187148 SPAIN 911143175 SWEDEN 0850685486 SWITZERLAND 0445809988 UNITED KINGDOM 02036080534 1-855-258-0900 (toll free) www.suunto.com © Suunto Oy 10 /2 01 2 Suunto is a registered trademark of Suunto Oy. All Rights reserved.

This manual is also suitable for:

D9tx

Table of Contents