Suunto D9 User Manual

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1. WELCOME TO THE WORLD OF SUUNTO DIVING INSTRUMENTS .. ... ... ... . 8

2. WARNINGS, CAUTIONS, AND NOTES . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 10

3. SUUNTO D9 AT A GLANCE .. . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 16

3.1. Navigating in the menus ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... . .. . ... ... ... 17

3.2. Button symbols and functions . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... 18

4. GETTING STARTED WITH YOUR SUUNTO D9 . . .. . ... ... ... ... . .. . ... ... ... ... . 20

4.1. TIME mode settings . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . 20

4.1.1. Setting the alarm . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 21

4.1.2. Setting the time . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... . 22

4.1.3. Setting the dual time ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . . 22

4.1.4. Setting the date ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... .. 23

4.1.5. Setting the units . . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... .. 23

4.1.6. Setting the backlight ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... .. 24

4.1.7. Setting the tones ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. 24

4.2. Stopwatch ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... 25

4.3. AC water contacts . . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... .. 26

4.4. Learning how to use your compass ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. 27

4.4.1. Compass display ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. 28

4.4.2. Locking a bearing ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... .. 29

4.4.3. Compass settings . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... . 30

5. BEFORE DIVING . . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . . 33

5.1. The Suunto RGBM/Deep Stop Algorithm ... ... . .. . ... ... ... ... . .. . ... ... ... ... 34

5.2. Emergency ascents . ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . 34

5.3. Dive computer limitations . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... . 35

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5.4. Nitrox . ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... . 35

5.5. Freediving ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. 35

5.6. Audible and visual alarms . . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 36

5.7. Error conditions . ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... .. 40

5.8. Wireless transmission . . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... . 41

5.8.1. Installing the wireless transmitter .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... . 41

5.8.2. Pairing and code selection . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... . 42

5.8.3. Transmitting data ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. 44

5.9. DIVE mode settings ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . . 45

5.9.1. Setting the depth alarm ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... .. 47

5.9.2. Setting the dive-time alarm .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... .. 48

5.9.3. Setting the nitrox values . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... 48

5.9.4. Setting the personal/altitude adjustments . ... ... . .. . ... ... ... ... . .. . .. . .. 50

5.9.5. Setting the sample rate . ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . 50

5.9.6. Setting the Safety Stops/Deep Stops ... . .. . ... ... ... ... . .. . ... ... ... ... . . 51

5.9.7. Setting the RGBM values . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 51

5.9.8. Tank pressure . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . . 52

5.9.9. Units . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... 52

5.9.10. HP code ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... . 53

5.10. Activation and pre-checks . ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... .. 53

5.10.1. Accessing DIVE mode ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... . 53

5.10.2. DIVE mode activation . . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . 54

5.10.3. Battery power indication . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . . 56

5.10.4. Diving at altitude . ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... . 57

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5.10.5. Personal adjustments . ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... . 58

5.11. Safety Stops . ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... . 60

5.11.1. Recommended Safety Stops . ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. 60

5.11.2. Mandatory Safety Stops ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... .. 61

5.12. Deep stops . . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. 63

6. DIVING . ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... . .. . ... . 64

6.1. Diving in AIR mode (DIVEair) .. ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . . 64

6.1.1. Basic dive data . . ... ... ... ... . .. . ... ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... 64

6.1.2. Bookmark . . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... 66

6.1.3. Tank pressure data .. ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . . 67

6.1.4. Ascent rate indicator ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... .. 68

6.1.5. Safety Stops and Deep Stops . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... 69

6.1.6. Decompression dives . ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... . .. . ... ... 70

6.2. Diving in NITROX mode (DIVEean) . ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . 75

6.2.1. Before diving in NITROX mode ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. 75

6.2.2. Oxygen displays . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... 77

6.2.3. Oxygen limit fraction (OLF) . ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... .. 78

6.2.4. Gas change and multiple breathing gas mixes . . ... ... ... ... . .. . ... ... .. 79

6.3. Diving in GAUGE mode (DIVEgauge) . ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 80

7. AFTER DIVING . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 81

7.1. At the surface .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... 81

7.1.1. Surface interval . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... . 81

7.1.2. Dive numbering ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... .. 82

7.1.3. Repetitive dive planning ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... . 83

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7.1.4. Flying after diving . ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... ... . .. . ... ... ... . 83

7.1.5. MEMORY mode ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... 84

7.1.6. Suunto Dive Manager (SDM) . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... . 89

7.1.7. SuuntoSports.com .. . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 90

8. CARE AND MAINTENANCE . . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 92

8.1. Water contacts and buttons . ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... . 92

8.2. Care of your dive computer ... ... . .. . ... ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... 92

8.3. Maintenance . ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... .. 93

8.4. Water resistance inspection . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . . 94

8.5. Battery replacement ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 95

8.5.1. Computer battery replacement ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 95

8.5.2. Wireless transmitter battery replacement . ... . .. . ... ... ... ... . .. . .. . ... .. 96

9. TECHNICAL DATA ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 99

9.1. Technical specifications .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... . 99

9.2. RGBM ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. 103

9.2.1. Suunto RGBM adaptive decompression ... ... . .. . ... ... ... ... . .. . .. . ... 104

9.2.2. No-decompression limits ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. 105

9.2.3. Altitude diving . . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... 107

9.3. Oxygen exposure ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. 108

10. INTELLECTUAL PROPERTY . ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... . 109

10.1. Copyright . ... ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . 109

10.2. Trademark . . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . . 109

10.3. Patent notice ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... 109

11. DISCLAIMERS . . .. . ... ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . . 110

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11.1. User’s responsibility ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... . 110

11.2. CE . .. . ... ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... .. 110

11.3. Limits of liability and ISO 9001 compliance . . ... ... ... ... ... . .. . ... ... ... ... 111

11.4. After sales service . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... 111

12. WARRANTY . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... .. 112

13. DISPOSAL OF THE DEVICE . . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . . 114

GLOSSARY ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . ... ... ... ... . .. . .. . ... ... ... ... . .. . . 115

7

1. WELCOME TO THE WORLD OF SUUNTO DIVING
INSTRUMENTS

Suunto D9 was designed to help you get the most out of your diving. By reading this
manual and becoming familiar with the functions of your dive computer, you can begin
a new era in your diving - one in which all dive-critical data can be seen on your wrist.

8

Suunto D9 is the world’s first dive computer to integrate a digital compass, wireless
tank data reception, and gas switching. It simplifies your diving experience because
all the information you need relating to depth, time, tank pressure, decompression
status, and direction is now available on one easy-to-read screen – not hanging off
you in a tangle of different gauges.

To get the most out of your Suunto D9, please read this instruction manual carefully
and make sure you understand the use, displays, and limitations of the instrument
before using it. To make life easier, we've included a glossary of dive-specific
terminology at the back of the manual.

9

2. WARNINGS, CAUTIONS, AND NOTES

Throughout this manual, important safety icons are displayed. Three classifications
are used to separate these icons by their order of importance:

WARNING

is used in connection with a procedure or situation that could
result in serious injury or death

CAUTION

is used in connection with a procedure or situation that could
result in damage to the device

NOTE

is used to emphasize important information

Before you go on to read the manual itself, it is extremely important that you read the
following warnings. These warnings are intended to maximize your safety while using
Suunto D9 and must not be ignored.

WARNING

READ THIS MANUAL! Carefully read this manual in its entirety,
paying close attention to all the warnings listed below, including
Section 5. BEFORE DIVING. Make sure that you fully understand
the use, displays and limitations of the dive computer, because
any confusion resulting from neglecting to follow this user's manual
or from improper use of this device could cause you to commit
errors that may lead to serious injury or death.

10

WARNING

NOT FOR PROFESSIONAL USE! Suunto dive computers are
intended for recreational use only. The demands of commercial
or professional diving may expose the diver to depths and
conditions that tend to increase the risk of decompression illness
(DCI). Therefore, Suunto strongly recommends that the device
is not used for any commercial or professional diving activities.

WARNING

ONLY DIVERS TRAINED IN THE PROPER USE OF SCUBA
DIVING EQUIPMENT SHOULD USE A DIVE COMPUTER! No
dive computer can replace the need for proper dive training.
Insufficient or improper training may cause you to commit errors
that may lead to serious injury or death.

WARNING

THERE IS ALWAYS A RISK OF DECOMPRESSION ILLNESS
(DCI) FOR ANY DIVE PROFILE, EVEN IF YOU FOLLOW THE
DIVE PLAN PRESCRIBED BY DIVE TABLES OR A DIVE
COMPUTER. NO PROCEDURE, DIVE COMPUTER, OR DIVE
TABLE CAN PREVENT THE POSSIBILITY OF DCI OR OXYGEN
TOXICITY! An individual’s physiological make-up can vary from
day to day. The dive computer cannot account for these variations.
You are strongly advised to remain well within the exposure limits
provided by the instrument to minimize the risk of DCI. As an
added precaution, you should consult a physician regarding your
fitness before diving.

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WARNING

SUUNTO STRONGLY RECOMMENDS THAT SPORT DIVERS
LIMIT THEIR MAXIMUM DEPTH TO 40 M/130 FT OR TO THE
DEPTH CALCULATED BY THE COMPUTER BASED ON THE
SELECTED O2% AND A MAXIMUM PO2OF 1.4 BAR!

WARNING

DIVES THAT REQUIRE DECOMPRESSION STOPS ARE NOT
RECOMMENDED. YOU SHOULD ASCEND AND BEGIN
DECOMPRESSION IMMEDIATELY WHEN THE DIVE
COMPUTER SHOWS YOU THAT A DECOMPRESSION STOP
IS REQUIRED! Note the blinking ASC TIME symbol and the
upward pointing arrow.

WARNING

USE BACK-UP INSTRUMENTS! Make sure that you use back­up instrumentation, including a depth gauge, submersible pressure
gauge, timer or watch, and have access to decompression tables
whenever diving with the dive computer.

WARNING

PERFORM PRE-CHECKS! Always activate and check the device
before diving in order to ensure that all Liquid Crystal Display
(LCD) segments are completely displayed, that the device has
not run out of battery power, and that the oxygen, altitude,
personal, Safety/Deep Stop, and RGBM adjustments are correct.

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WARNING

YOU ARE ADVISED TO AVOID FLYING ANY TIME THE
COMPUTER COUNTS DOWN THE NO-FLY TIME. ALWAYS
ACTIVATE THE COMPUTER TO CHECK THE REMAINING NO­FLY TIME PRIOR TO FLYING! Flying or traveling to a higher
altitude within the no-fly time can greatly increase the risk of DCI.
Review the recommendations given by Diver’s Alert Network
(DAN) in Section 7.1.4. Flying after diving.

WARNING

THE DIVE COMPUTER SHOULD NEVER BE TRADED OR
SHARED BETWEEN USERS WHILE IT IS IN OPERATION! Its
information will not apply to someone who has not been wearing
it throughout a dive, or sequence of repetitive dives. Its dive
profiles must match that of the user. If it is left on the surface
during any dive, the dive computer will give inaccurate information
for subsequent dives. No dive computer can take into account
dives made without the computer. Thus, any diving activity up to
four days prior to initial use of the computer may cause misleading
information and must be avoided.

WARNING

DO NOT EXPOSE THE SUUNTO D9´S OPTIONAL PRESSURE
TRANSMITTER TO ANY GAS MIX CONTAINING MORE THAN
40% OXYGEN! Enriched air with greater oxygen content presents
a risk of fire or explosion and serious injury or death.

13

WARNING

DO NOT DIVE WITH A CYLINDER OF ENRICHED AIR IF YOU
HAVE NOT PERSONALLY VERIFIED ITS CONTENTS AND
ENTERED THE ANALYZED VALUE INTO YOUR DIVE
COMPUTER! Failure to verify cylinder contents and enter the
appropriate O2% into your dive computer will result in incorrect
dive planning information.

WARNING

THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL
PERCENTAGE VALUES OF OXYGEN CONCENTRATION. DO
NOT ROUND UP FRACTIONAL PERCENTAGES! For example,

31.8% oxygen should be entered as 31%. Rounding up will cause
nitrogen percentages to be understated and will affect
decompression calculations. If you want to adjust the computer
to provide more conservative calculations, use the personal
adjustment feature to affect decompression calculations, or reduce
the PO2setting to affect oxygen exposure.

WARNING

SELECT THE CORRECT ALTITUDE ADJUSTMENT SETTING!
When diving at altitudes greater than 300 m/1,000 ft the Altitude
Adjustment feature must be correctly selected in order for the
computer to calculate the decompression status. The dive
computer is not intended for use at altitudes greater than 3,000
m/10,000 ft. Failure to select the correct Altitude Adjustment
setting, or diving above the maximum altitude limit will result in
erroneous dive and planning data.

14

WARNING

SELECT THE CORRECT PERSONAL ADJUSTMENT SETTING!
Whenever it is believed that factors that tend to increase the
possibility of DCI exist, it is recommended that you use this option
to make the calculations more conservative. Failure to select the
correct Personal Adjustment setting will result in erroneous dive
and planning data.

WARNING

This device contains a Lithium cell battery. To reduce the risk of
fire or burns, do not disassemble, crush, puncture, short external
contacts, or dispose of in fire or water. Replace only with
manufacturer-specified batteries. Recycle or dispose of used
batteries properly.

NOTE

It is not possible to change between AIR, NITROX and GAUGE
modes before the instrument has counted down the no-fly time.
There is one exception to this: You can change from AIR to
NITROX mode even during the no-fly time. When planning both
air and nitrox dives during the same dive series, you should set
the instrument in NITROX mode and modify the gas mix
accordingly.
In GAUGE mode, the no-fly time is always 48 hours.

15

3. SUUNTO D9 AT A GLANCE

NOTE

If no button is pressed for 5 minutes, the dive computer beeps
and returns to the TIME mode automatically.

16

3.1. Navigating in the menus

Suunto D9 has three main operating modes - TIME mode (TIME), DIVE mode (DIVE),
and MEMORY mode (MEM) – as well as the COMPASS submode, which can be
activated from either TIME or DIVE modes. To toggle between the main modes, press
the MODE button. To select a submode in DIVE and MEM mode, press the UP/DOWN
buttons.

17

3.2. Button symbols and functions

The table below explains the main functions of the dive computer's buttons. The buttons
and their use will be explained in more detail in the relevant sections of the manual.

Table 3.1. Button symbols and functions

Main functionsPressButtonSymbol

Switch between main modes
Switch from submode to main mode
Activate backlight in DIVE mode

ShortMODE

Activate backlight in other modesLongMODE

Select a submode
Select and accept settings

ShortSELECT

Activate compass in TIME and DIVE modesLongSELECT

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Main functionsPressButtonSymbol

Toggle between alternative displays
Change submode
Increase values

ShortUP

Enable gas switching in NITROX modeLongUP

Toggle between alternative displays
Change submode
Decrease values

ShortDOWN

Enter Setting mode
Toggle between ceiling and remaining air time display

LongDOWN

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4. GETTING STARTED WITH YOUR SUUNTO D9

To get the most out of your Suunto D9, take some time to personalize it and really
make it YOUR computer. Set the correct time and date, as well as the alarms and
tones, unit and backlight settings, then calibrate and test the compass function. If
you are going to use the optional wireless pressure transmitter, install it and enable
the pressure transmission in the Suunto D9’s settings then test the pressure
transmission.

Suunto D9 is a very user-friendly dive computer, and you will quickly become familiar
with its functions. Make absolutely sure that you know your computer and have it set
up as you want it BEFORE getting into the water.

4.1. TIME mode settings

The first thing you'll want to do with your Suunto D9 , is to set the TIME mode shortcuts:
alarm, time, dual time, date, units, backlight, and tones. In this section, we look at how
to do this.

Before that, however, take a look at the figure below, which shows how to toggle
between different shortcuts in the TIME mode.

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NOTE

The seconds display reverts to date display after 5 minutes in
order to save battery power.

NOTE

The display is illuminated by holding down the MODE button for
more than 2 seconds.

Now that you know how to toggle between the shortcuts, you can start to set them.
The following figure shows how to enter the TIME SETTINGS menu.

USE UP AND DOWN BUTTONS
TO TOGGLE BETWEEN ALARM, TIME,
DUAL TIME, DATE, UNITS, BACKLIGHT
AND TONES.

4.1.1. Setting the alarm

The dive computer has a daily alarm function. When the daily alarm activates, the
screen blinks and the alarm sounds for 24 seconds. Press any button to stop the
alarm.

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ADJUST WITH UP AND

DOWN BUTTONS. ACCEPT

WITH SELECT BUTTON.

4.1.2. Setting the time

In the TIME SETTING mode, you are able to set the hour, minute, and second, as
well as choose between 12 and 24 hour display.

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.1.3. Setting the dual time

In the DUAL TIME SETTING mode you can select the hour and minute of a dual time

- useful when traveling to a different time zone.

22

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.1.4. Setting the date

Use the DATE SETTING mode to set the year, month, and day. The day of the week
is automatically calculated in accordance with the date.

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.1.5. Setting the units

In the UNITS SETTING mode you can choose to have the units displayed in either
the metric or imperial system - meters/feet, Celsius/Fahrenheit etc.

23

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.1.6. Setting the backlight

Use the BACKLIGHT SETTING mode 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 an alarm sounds.

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.1.7. Setting the tones

The TONE SETTING mode allows you to activate or deactivate the tones.

24

ADJUST WITH UP AND

DOWN BUT

TONS. ACCEPT

WITH SELECT BUTTON.

4.2. Stopwatch

The Suunto D9’s stopwatch measures elapsed and split times. A separate stopwatch
(dive timer) can also be used when in GAUGE mode. See Section 6.3. Diving in
GAUGE mode (DIVEgauge) .

USE DOWN BUTTON TO START
STOPWATCH AND TAKE A SPLIT TIME.
THE UP BUTTON STOPS THE STOPWATCH

AND LONG PRESSING IT RESETS IT.

25

4.3. AC water contacts

The water and data transfer contact is located on the right side of the case. When
submerged, the water contact is connected to the casing (which is the other pole of
the water contact) by the conductivity of the water and the “AC” symbol appears on
the display. The AC text is shown until the water contact deactivates.

AC APPEARS IN THE TOP RIGHT

CORNER OF THE DISPLAY, WHEN THE DIVE

COMPUTER IS IN CONTACT WITH WATER.

THIS ALSO ACTIVATES THE DIVE MODE.

Contamination or dirt on the water contact may prevent this automatic activation. It is
therefore important that the water contact is kept clean. The contact can be cleaned
with fresh water and a soft brush, for example a tooth brush.

26

NOTE

Water or moisture build-up around the water contact may cause
the contact to activate automatically. This can happen, for
example, when washing your hands or sweating. If the water
contact activates in the TIME mode, the AC symbol will appear
on the display, and will be shown until the water contact
deactivates. To save battery power, you should deactivate the
water contact by cleaning it and/or drying it with a soft towel.

4.4. Learning how to use your compass

Suunto D9 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-pressing
the SELECT button.

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IF ACCESSED FROM TIME MODE,
TIME AND BEARING ARE DISPLAYED AT
THE BOTTOM OF THE SCREEN.

IF ACCESSED FROM DIVE MODE,

CURRENT DEPTH AND TIME OR

MAXIMUM DEPTH, AS WELL AS BEARING

OR DIVE TIME OR TEMPERATURE ARE

DISPLAYED.

NOTE

When accessed from DIVE mode, toggle between the alternative
displays by pressing the UP/DOWN buttons.

NOTE

In order to save battery power, the compass display will
automatically return to the TIME or DIVE mode 60 seconds after
the last button-press.

4.4.1. Compass display

The Suunto D9 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.

28

4.4.2. Locking a bearing

A bearing can be locked to help you follow a selected course, and directional arrows
point towards the locked bearing. Locked bearings are stored in the memory for later
analysis and are available the next time the compass is activated.

TO LOCK A BEARING,

PRESS SELECT.

The Suunto D9 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. Locked bearing symbols

ExplanationSymbol

You are traveling towards the locked bearing

You are 90 (or 270) degrees from the locked bearing

You are 180 degrees from the locked bearing

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ExplanationSymbol

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 COMPASS
mode:

Declination

You can compensate for the difference between true north and magnetic north by
adjusting the compass declination. The declination can be found, for example, from
sea charts or topographic maps of the local area.

ADJUST WITH UP

AND DOWN. ACCEPT

WITH SELECT.

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