Suunto D4i User manual

User’s GUide
en
SUUNTO D4i

1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS ................. 8
2. WARNINGS, CAUTIONS, AND NOTES .............................................. 9
3. SUUNTO USER INTERFACE ........................................................ 16
3.1. Navigating in the menus ......................................................... 17
3.2. Button symbols and functions ................................................... 18
4. GETTING STARTED .................................................................. 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 .............................................................. 22
4.1.5. Setting the units ............................................................. 23
4.1.6. Setting the backlight ........................................................ 23
4.1.7. Setting the contrast ......................................................... 24
4.1.8. Setting the tones ............................................................ 24
4.2. Stopwatch ......................................................................... 25
4.3. AC water contacts ................................................................ 26
5. BEFORE DIVING ...................................................................... 27
5.1. The Suunto RGBM ............................................................... 27
5.2. Emergency ascents .............................................................. 28
5.3. Dive computer limitations ........................................................ 28
5.4. Nitrox ............................................................................... 29
5.5. Freediving ......................................................................... 29
5.6. Audible and visual alarms ....................................................... 30
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5.7. Error conditions ................................................................... 35
5.8. Wireless transmission ............................................................ 36
5.8.1. Installing the wireless transmitter .......................................... 36
5.8.2. Pairing and code selection ................................................. 37
5.8.3. Transmitting data ............................................................ 40
5.9. DIVE mode settings .............................................................. 41
5.9.1. Setting the nitrox values .................................................... 43
5.9.2. Setting the personal/altitude adjustments ................................ 44
5.9.3. Setting the tank pressure pairing .......................................... 44
5.9.4. Setting the tank pressure alarm ........................................... 45
5.9.5. Setting the depth alarm ..................................................... 45
5.9.6. Setting the depth notify alarm (FREE mode) ............................. 46
5.9.7. Setting the dive-time alarm ................................................. 46
5.9.8. Setting the surface time notify alarm (FREE mode) ..................... 47
5.9.9. Setting the sample rate ..................................................... 47
5.9.10. Setting the deep stops .................................................... 48
5.9.11. Setting the units ............................................................ 48
5.10. Activation and pre-checks ...................................................... 49
5.10.1. Accessing DIVE mode .................................................... 49
5.10.2. DIVE mode activation ..................................................... 50
5.10.3. Battery power indication .................................................. 51
5.10.4. Diving at altitude ........................................................... 52
5.10.5. Personal adjustments ..................................................... 53
5.11. Safety Stops ..................................................................... 55
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5.11.1. Recommended Safety Stops ............................................. 55
5.11.2. Mandatory Safety Stops .................................................. 56
5.12. Deep stops ....................................................................... 58
6. DIVING .................................................................................. 59
6.1. Diving in the AIR mode (DIVE Air) ............................................. 59
6.1.1. Basic dive data .............................................................. 60
6.1.2. Bookmark .................................................................... 61
6.1.3. Tank pressure data .......................................................... 62
6.1.4. Ascent rate indicator ........................................................ 63
6.1.5. Stopwatch (Timer) ........................................................... 64
6.1.6. Decompression dives ....................................................... 65
6.2. Diving in the NITROX mode (DIVE Nitrox) .................................... 70
6.2.1. Before diving in the NITROX mode ....................................... 70
6.2.2. Oxygen displays ............................................................. 71
6.2.3. Oxygen limit fraction (OLF%) .............................................. 73
6.3. Diving in the FREE mode (DIVE Free) ........................................ 73
6.3.1. Day History .................................................................. 74
6.3.2. Free dive time limit .......................................................... 76
7. AFTER DIVING ......................................................................... 77
7.1. Surface interval ................................................................... 77
7.2. Dive numbering ................................................................... 78
7.2.1. FREE Dive ................................................................... 79
7.3. Repetitive dive planning ......................................................... 79
7.4. Flying after diving ................................................................. 79
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7.5. DIVE PLANNING mode (PLAN NoDec) ....................................... 80
7.5.1. Dive numbering shown during dive planning ............................ 82
7.6. MEMORY mode .................................................................. 82
7.6.1. Dive logbook (MEM Logbook) ............................................. 83
7.6.2. Dive history (MEM History) ................................................. 85
7.7. Suunto DM4 with Movescount .................................................. 86
7.8. Movescount ....................................................................... 87
8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER .......... 89
9. BATTERY REPLACEMENT ........................................................... 94
9.1. Wireless transmitter battery replacement ...................................... 94
9.1.1. Transmitter battery kit ....................................................... 95
9.1.2. Required tools ............................................................... 95
9.1.3. Replacing the transmitter battery .......................................... 95
10. TECHNICAL DATA ................................................................... 98
10.1. Technical specifications ........................................................ 98
10.2. RGBM ........................................................................... 101
10.2.1. Suunto RGBM adaptive decompression .............................. 102
10.2.2. No-decompression limits for air ......................................... 103
10.2.3. Altitude diving ............................................................. 105
10.3. Oxygen exposure ............................................................. 106
11. INTELLECTUAL PROPERTY ...................................................... 107
11.1. Copyright ........................................................................ 107
11.2. Trademark ...................................................................... 107
11.3. Patent notice ................................................................... 107
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12. DISCLAIMERS ...................................................................... 108
12.1. User’s responsibility .......................................................... 108
12.2. CE ............................................................................... 108
13. SUUNTO LIMITED WARRANTY FOR SUUNTO DIVING COMPUTERS AND
SUUNTO DIVING COMPUTER ACCESSORIES .................................... 109
14. DISPOSAL OF THE DEVICE ...................................................... 114
GLOSSARY .............................................................................. 115
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1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS
Suunto D4i wristop dive computer is designed to help you get the most out of your
diving.
Suunto D4i simplifies your diving experience because all the information you need
relating to depth, time, decompression, and additional tank pressure status is available
on one easy-to-read display.
The Suunto D4i User's Guide contains vitally important information which enables you
to become familiar with your Suunto wristop dive computer. To understand the use,
displays, and limitations of the instrument before using it, please read this user's guide
carefully, and save it for further reference. Note also that a glossary is included at the
back of the user's guide to help you understand dive-specific terminology.
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2. WARNINGS, CAUTIONS, AND NOTES
Throughout this user's guide, important safety icons are displayed. Three classifications
are used to separate these icons by their order of importance:
WARNING is used in connection with a procedure or situation that 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 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 D4i and must not be ignored.
WARNING READ THIS user's guide! Carefully read this user's guide in its
entirety, paying close attention to all the warnings listed below,
including Section 5. BEFORE DIVING. Ensure that you fully un-
derstand the use, displays and limitations of the dive computer,
because any confusion resulting from neglecting to follow this
user's guide or from improper use of this device could cause you
to commit errors that may lead to serious injury or death.
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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 condi-
tions 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. In-
sufficient 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! Exposure
to greater depths increases the risk of oxygen toxicity and decom-
pression sickness.
WARNING DIVES WITH REQUIRED DECOMPRESSION STOPS ARE NOT
RECOMMENDED. YOU SHOULD ASCEND AND BEGIN DE-
COMPRESSION IMMEDIATELY WHEN THE DIVE COMPUTER
SHOWS YOU THAT A DECOMPRESSION STOP IS REQUIRED!
Note the blinking ASC TIME symbol and the upward pointing ar-
row.
WARNING USE BACK-UP INSTRUMENTS! Ensure that you use back-up
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, person-
al, and Safety/Deep Stop are correct.
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WARNING YOU ARE ADVISED TO AVOID FLYING ANY TIME THE COM-
PUTER COUNTS DOWN THE NO-FLY TIME. ALWAYS ACTIV-
ATE THE COMPUTER TO CHECK THE REMAINING NO-FLY
TIME PRIOR TO FLYING! Flying or traveling to a higher altitude
within the no-fly time can greatly increase the risk of DCI. Review
the recommendations given by Divers Alert Network (DAN) in
Section 7.4. Flying after diving. There can never be a flying after
diving rule that is guaranteed to completely prevent decompres-
sion illness!
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 pro-
files 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 OPTIONAL TANK 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.
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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 COM-
PUTER! Failure to verify cylinder contents and enter the appropri-
ate 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 decompres-
sion 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 PO2
setting to affect oxygen exposure according to the entered O2%
and PO2 values.
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WARNING SET THE CORRECT ALTITUDE ADJUSTMENT SETTING
MODE! 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 set-
ting, or diving above the maximum altitude limit will result in erro-
neous dive and planning data.
WARNING SET THE CORRECT PERSONAL ADJUSTMENT SETTING
MODE! Whenever it is believed that factors that tend to increase
the possibility of DCI exist, it is recommended that you use this
option to make the calculations more conservative. Failure to
select the correct Personal Adjustment setting will result in erro-
neous 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 manu-
facturer-specified batteries. Recycle or dispose of used batteries
properly.
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NOTE It is not possible to change between AIR, NITROX and FREE
modes before the instrument has counted down the no-fly time.
There is one exception to this: You can change from AIR to NI-
TROX 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.
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3. SUUNTO USER INTERFACE
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Safety Stop Indicator
No-Fly Icon
Diver Attention Symbol
Ascent Rate Bar Graph
Dive Alarm Indicator
Daily Alarm Indicator
Low Battery Warning
Present Depth
Tank pressure bar graph
Wireless Transmission
Indicator
Date
Dual Time
Maximum Depth
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% (Nitrox Mode)
Time
Tank Pressure
Active Water Contact
Indicator
Current Time Display
Mode Indicator
No-Decompression Time
Total Ascent Time
Ceiling Depth
Remaining Air Time
Safety/Deep Stop Time
Surface Interval Time
No-Fly Time
Tissue Saturation Graph
Seconds Display
Stopwatch
Weekday
Dive Time
Dive Number
Temperature
PO
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% (Nitrox Mode)
OLF% (Nitrox Mode)
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3.1. Navigating in the menus
Suunto D4i has four main operating modes - TIME mode (TIME), DIVE mode (DIVE),
PLAN mode (PLAN), and MEMORY mode (MEM). To toggle between the main modes,
press the MODE button. To select a submode in DIVE and MEM modes, press the
UP/DOWN buttons.
SETTINGS
Alarm
Time
Dual Time
Date
Units
Backlight
Contrast
Tones
SUB-MODES
Air
Nitrox
Free
SETTINGS
Nitrox
Personal/Altitude
Tank Press Pairing
Tank Press Alarm
Depth Alarm
Depth Notify Alarm
Dive Time Alarm
Surface Time Notify Alarm
Sample Rate
Deepstop
Units
TIME DIVE PLAN MEM
SUB-MODES
Logbook
History
LIGHT LIGHT LIGHT LIGHT
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3.2. Button symbols and functions
The table below explains the main functions of the dive computer's buttons. The buttons
and their use is explained in more detail in the relevant sections of the user's guide.
Table 3.1. Button symbols and functions
Main functionsPressButtonSymbol
Switch between main modes
Switch from submode to main mode
Activate backlight in DIVE mode
ShortMODE
Activate backlight in other modes
Activate stopwatch in DIVE mode
LongMODE
Select a submode
Select and accept settings
Select stopwatch to stop or start in DIVE mode
Displays Day History in FREE mode (free dive
mode)
ShortSELECT
Toggle between alternative displays
Change submode
Increase values
Change shortcuts in TIME and DIVE modes
ShortUP
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Main functionsPressButtonSymbol
Toggle between alternative displays
Change submode
Decrease values
Change shortcuts in TIME and DIVE modes
ShortDOWN
Enter Setting mode
LongDOWN
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4. GETTING STARTED
To get the most out of your Suunto D4i, use some time to personalize it and really
make it YOUR computer. Set the correct time and date, the alarms, as well as the unit
and backlight settings.
Suunto D4i 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 figure below 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 after you know how to toggle between the shortcuts, you can start to set
them.
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The figure below shows how to enter the TIME Settings menu.
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USE UP AND DOWN BUTTONS
TO TOGGLE BETWEEN ALARM,TIME,
DUAL TIME, DATE, UNITS, CONTRAST
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 60 seconds. Press any button to stop the
alarm.
ADJUST WITH UP AND
DOWN BUTTONS. ACCEPT
WITH SELECT BUTTON.
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