Suunto D9 - Manual

WARNING DO NOT DIVE WITH A CYLINDER OF ENRICHED AIR IF YOUHAVE NOT PERSONALLY VERIFIED ITS CONTENTS ANDENTERED THE ANALYZED VALUE INTO YOUR DIVECOMPUTER! Failure to verify cylinder contents and enter theappropriate O 2 % into your dive computer will result in incorrect dive planning information. WAR...

3. SUUNTO D9 AT A GLANCE NOTE If no button is pressed for 5 minutes, the dive computer beepsand returns to the TIME mode automatically. 16

4. GETTING STARTED WITH YOUR SUUNTO D9 To get the most out of your Suunto D9, take some time to personalize it and reallymake it YOUR computer. Set the correct time and date, as well as the alarms andtones, unit and backlight settings, then calibrate and test the compass function . If you are going ...

4.4.2. Locking a bearing A bearing can be locked to help you follow a selected course, and directional arrowspoint towards the locked bearing. Locked bearings are stored in the memory for lateranalysis and are available the next time the compass is activated. TO LOCK A BEARING, PRESS SELECT. The Suu...

Explanation Symbol You are 120 (or 240) degrees from the locked bearing 4.4.3. Compass settings You can define the compass settings (declination and calibration) when in COMPASSmode: Declination You can compensate for the difference between true north and magnetic north byadjusting the compass decli...

Calibration Because of changes in the surrounding magnetic field, the Suunto D9 electroniccompass occasionally needs to be re-calibrated. During the calibration process, thecompass adjusts itself to the surrounding magnetic field. As a basic rule, you shouldcalibrate the compass whenever it doesn’t ...

Table 5.1. Audible and visual alarm types Alarm reason Alarm type Dive computer is activated. Short single beep Dive computer automatically returns to the TIME mode. Cylinder pressure reaches 50 bar/725 psi. The cylinderpressure display will start to blink. Three beeps with a threesecond interval Cy...

You are able to preset alarms before the dive. The programmable alarms can be setfor maximum depth, dive time and time. See also Section 5.9. DIVE mode settings and Section 4.1. TIME mode settings . Table 5.2. Preset alarm types Alarm reason Alarm type Preset maximum depth isreached. Continuous beep...

Table 5.3. Oxygen alarms in NITROX mode Alarm reason Alarm type Set oxygen partial pressure limit is exceeded. Thealternative display is replaced with a current blinkingPO 2 value. You should immediately ascend above the PO 2 depth limit. Continuous beeps for 3minutes and activatedbacklight OLF valu...

5.7. Error conditions The dive computer has warning indicators that alert you to react to certain situationsthat would significantly increase the risk of DCI. If you do not respond to its warnings,the dive computer will enter an Error mode, indicating that the risk of DCI has greatlyincreased. If yo...

5.8.3. Transmitting data After the pairing procedure, the Suunto D9 will receive cylinder pressure data fromthe transmitter. The pressure is displayed in either bars or psi, depending on the unitselected. Any time the Suunto D9 receives an appropriate signal it flashes the lightningfigure in the dis...

Figure Indication Display D Indicates pressure transmitter battery voltage is low. Change thetransmitter battery! LOB E Pairing has not been conducted before start of dive. No cylinderdata available. OFF A B C D E 5.9. DIVE mode settings Suunto D9 has several user-definable functions, as well as dep...

USE UP AND DOWN BUTTONS TO TOGGLE BETWEEN DIVE SETTINGS. NOTE The settings cannot be activated until 5 minutes has elapsed afterthe dive. 5.9.1. Setting the depth alarm You can set a depth alarm in the dive computer. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 47

In order to minimize the risk of error during a dive, it is highly recommended that themixes are set in the proper order. This means that as the mix number rises, so doesoxygen content, and this is the order they are usually used during the dive. Before adive, only set to “ON” the mixes you actually...

5.10.4. Diving at altitude The dive computer can be adjusted both for diving at altitude and also to increase theconservatism of the mathematical nitrogen model.When programming the instrument for the correct altitude, you need to select thecorrect Altitude Adjustment settings according to Table 5.6...

5.10.5. Personal adjustments There are personal factors that can affect your susceptibility to DCI, which you canpredict in advance, and input into the decompression model. Such factors vary betweendivers and also for the same diver from one day to another. The three-step PersonalAdjustment setting ...

Table 5.7. Personal Adjustment settings Desired tables Condition Personaladjustmentvalue Default Ideal conditions P0 Progressively more conservative Some risk factors or conditionsexist P1 Several risk factors or conditionsexist P2 The Suunto D9 also allows experienced divers who are willing to acce...

Effect Desired Tables RGBM setting Smaller RGBM effects, higher risk! Attenuated RGBM model 50% 5.11. Safety Stops Safety Stops are widely considered good diving practice for recreational diving, andare an integral part of most dive tables. The reasons for performing a Safety Stopinclude: reducing s...

6. DIVING This section contains instructions on how to operate the dive computer and interpretits displays. You’ll find that this dive computer is easy to use and read. Each displayshows only the data relevant to that specific diving mode. 6.1. Diving in AIR mode (DIVEair) In this section, we look a...

• 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 • the Diver Attention Symbol if surface interval should be prolonged (see Table 7.1, Alarms ) DIVE DISPLAY - PRESENT DEPTH IS 15 M, NO-DECO...

UP BUTTON TOGGLES BETWEEN DIVE TIME AND WATER TEMPERATURE. In addition, with the optional wireless transmission enabled:• the Remaining Air-time in the left center window indicated as AIR TIME • the cylinder pressure in bar (or psi) displayed in the lower left corner • the cylinder pressure graphica...

YOU ARE ADVISED TO MAKE A DEEPSTOP AT 12 M. THE SECOND INDICATOR SHOWS THAT YOU HAVE 58 SECONDS LEFT OF YOUR DEEPSTOP. 6.1.6. Decompression dives When your NO DEC TIME becomes zero, your dive becomes a decompression diveso you must perform one or more decompression stops on your way to the surface.T...

• the time needed to reach the surface after the ceiling and Safety Stops have beencompleted WARNING YOUR ACTUAL ASCENT TIME MAY BE LONGER THANDISPLAYED BY THE INSTRUMENT! The ascent time willincrease if you:• remain at depth • ascend slower than 10 m/33 ft per minute • make your decompression stop ...

Display below the floor The blinking ASC TIME and an upward pointing arrow indicate that you are below thefloor. You should start your ascent immediately. The ceiling depth is shown on the leftside, and the minimum total ascent time on the right side, of the center window. Belowis an example of a de...

Display at the ceiling zone When you reach the ceiling zone, the display will show you two arrows pointing ateach other (the “hour glass” icon). Below is an example of a decompression dive atthe ceiling zone. TWO ARROWS POINT AT EACH OTHER “HOUR GLASS”. YOU ARE IN THE OPTIMUM CEILING ZONE AT 3 M. AN...

to be understated and will affect decompression calculations. If you want to adjust thecomputer to provide more conservative calculations, use the personal adjustmentfeature to affect decompression calculations, or reduce the PO 2 setting to affect oxygen exposure according to the entered O 2 % and ...

6.3. Diving in GAUGE mode (DIVEgauge) If set to GAUGE mode, the dive computer can be used as a bottom timer or as afreediving instrument.In the GAUGE mode, the total dive time is always displayed in minutes in the lowerright corner. In addition, a Dive Timer in the center window displays time in min...

7. AFTER DIVING 7.1. At the surface Once back at the surface, Suunto D9 continues to provide post-dive safety informationand alarms. Calculations to enable repetitive dive planning also help to maximize diversafety. 7.1.1. Surface interval An ascent to any depth shallower than 1.2 m/4 ft will cause ...

When entering the MEMplan mode, the display first briefly shows the remainingdesaturation time before going into plan mode.By pressing the UP/DOWN buttons, you can scroll the no-decompression limits in 3m/10 ft increments ending at 45 m/150 ft. No-decompression limits longer than 99minare displayed ...

NOTE The Planning mode is disabled in GAUGE mode and in Errormode (see Section 5.7. Error conditions). The planning modecalculates no-decompression times for MIX1 only. If additionalmixes are enabled in the NITROX mode, they do not affect thecalculations in MEMplan mode. Higher Altitude and conserva...

8. CARE AND MAINTENANCE 8.1. Water contacts and buttons Contamination or dirt on the water contacts/connector or buttons may prevent theautomatic activation of the DIVE mode and cause problems during data transfer.Therefore, it is important that the water contacts and push buttons are kept clean. If...

IMPORTANT: Your Suunto D9 should be soaked, then thoroughly rinsed with freshwater and dried with a soft towel after each dive. Make sure that all salt crystals andsand particles have been flushed out. Check the display for possible moisture or water,and do not use the Suunto D9 if you detect any mo...

8.5.2. Wireless transmitter battery replacement NOTE It is advisable to contact an authorized Suunto representative fortransmitter battery replacement. It is imperative that the changeis made in a proper manner to avoid any leakage of water intothe transmitter. CAUTION Defects caused by improper bat...

5. Carefully remove the battery. Do not touch the electrical contacts or the circuitboard.Check for any traces of leakage, or for any other damage. If there is a leak or anyother damage, take the transmitter to an authorized Suunto representative ordistributor for checking and repair. 6. Check the c...

9. TECHNICAL DATA 9.1. Technical specificationsDimensions and weight: Dive Computer• Diameter: 50.0 mm/1.97 in • Thickness: 17.6 mm/0.67 in • Weight: 110 g/3.88 oz Transmitter: • Max. diameter: 40 mm/1.57 in • Length: 80 mm/3.15 in • Weight: 118 g/4.16 oz • Rated working pressure: 300 bar/4000 psi, ...

Temperature display: • Resolution: 1°C/1.5°F • Display range: -20 to +50°C/-9 to +122°F • Accuracy: ± 2°C/± 3.6°F within 20 minutes of temperature change Calendar clock: • Accuracy: ± 25 s/month (at 20°C/68°F) • 12/24 h display Other displays: • Dive time: 0 to 999 min, counting starts and stops at ...

• Depth accuracy: 0.3 m/1 ft Operating conditions: • Normal altitude range: 0 to 3,000 m/10,000 ft above sea level • Operating temperature: 0°C to 40°C/32°F to 104°F • Storage temperature: -20°C to +50°C/ -4°F to +122°F It is recommended that the instrument be stored in a dry place at room temperatu...

NOTE Low temperature or an internal oxidation of the battery mayactivate the battery warning even though the battery has enoughcapacity. In this case, the warning usually disappears when theDIVE mode is activated again. 9.2. RGBM The Suunto Reduced Gradient Bubble Model (RGBM) is a modern algorithm ...

9.2.1. Suunto RGBM adaptive decompression The Suunto RGBM algorithm adapts its predictions of both the effects of microbubblebuild-up and adverse dive profiles in the current dive series. It also changes thesecalculations according to the personal adjustment you select.The pattern and speed of decom...

9.2.2. No-decompression limits The no-decompression limits displayed by the dive computer for the first dive to asingle depth (see Table 9.1, No-decompression time limits for various depths (m) and Table 9.2, No-decompression time limits for various depths (ft) .), are slightly more conservative tha...

10. INTELLECTUAL PROPERTY 10.1. Copyright This user's manual is copyrighted and all rights are reserved. It may not, in whole orin part, be copied, photocopied, reproduced, or translated to any media without priorwritten consent from Suunto. 10.2. Trademark Suunto, D9, Consumed Bottom Time (CBT), Ox...

11.3. Limits of liability and ISO 9001 compliance Suunto Oy does not assume any responsibility for losses or claims by third parties,which may arise through the use of this device.Due to continuous product development, the Suunto D9 is subject to change withoutnotice. ISO 9001 Suunto Oy’s Quality As...

13. DISPOSAL OF THE DEVICE Please dispose of the device in an appropriate way, treatingit as electronic waste. Do not throw it in the garbage. If youwish, you may return the device to your nearest Suuntorepresentative. 114

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...