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.
8
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.
10
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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