Suunto D3 Instruction Manual
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Suunto D3 Instruction Manual

Wristop freediving computer
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DEFINITION OF WARNINGS, CAUTIONS AND NOTES
Throughout this manual, special references are made when deemed
important. Three classifications are used to separate these references by
their order of importance.
WARNING - is used in connection with a procedure or situation that
may result in serious injury or death.
CAUTION - is used in connection with a procedure or situation that will
result in damage to the product.
NOTE
- is used to emphasize important information.
COPYRIGHT, TRADEMARK AND PATENT NOTICE
This instruction manual is copyrighted and all rights are reserved. It may
not, in whole or in part, be copied, photocopied, reproduced, translated, or
reduced to any media without prior written consent from SUUNTO.
SUUNTO, D3 and their logos are all registered or unregistered trademarks
of SUUNTO. All rights are reserved.
Patents have been issued or applied for one or several features of this
product.
CE
The CE mark is used to mark conformity with the European Union EMC
directive 89/336/EEC. The SUUNTO dive instruments fulfill all the required
EU directives.
SuuntoD3.p65
1
1
31.1.2002, 14:16

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  • Page 1 SUUNTO. SUUNTO, D3 and their logos are all registered or unregistered trademarks of SUUNTO. All rights are reserved. Patents have been issued or applied for one or several features of this product.
  • Page 2 PrEN 13319 ”Diving accessories – Depth gauges and combined depth and time measuring devices – Functional and safety requirements, test methods” is a European diving depth gauge standard draft. The D3 is designed to comply with this draft standard. ISO 9001 SUUNTO Oy’s Quality Assurance System is certified by Det Norske Veritas...
  • Page 3 WARNING Suunto also recommends you to be trained in freediving technique and physiology before conducting breath holding dives. No diving instrument can replace the need for proper diving training. Insufficient or improper training may cause diver to commit errors that may lead to serious injury or death.
  • Page 4 WARNING back-up instruments. Make sure that back-up instrumentation including a depth gauge, submersible pressure gauge, timer or watch, and have access to decompression tables whenever diving with a bottom timer. 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 and personal adjustments are correct.

  • Page 5: Table Of Contents

    2.4.1. Timekeeping Display ............. 1 4 2.4.2. Stopwatch [TIMEr UP] ............1 5 2.4.3 Downtimer [TIMEr d]............. 1 7 3. DIVING WITH THE D3 ................. 1 8 3.1 BEFORE DIVING ................1 9 3.1.1. Activation and Pre-checks ............. 1 9 3.1.2.
  • Page 6 3.2.3 During the Freedive............25 3.2.4 Freediving Day History .............26 3.2.5 Surface interval after a Freedive ........27 3.3. GAUGE DIVING ................2 8 3.3.1. Maximum Operating Depth Planner [MOD] ...... 2 8 3.3.2. Presetting the Displays in the Gauge Mode ......2 9 3.3.3.
  • Page 7 5.4. SUUNTOSPORTS.COM ..............5 7 6. CARE AND MAINTENANCE ..............6 1 6.1. CARE OF YOUR D3 ................ 6 1 6.2. MAINTENANCE ................6 2 6.3. WATER RESISTANCE INSPECTION ........... 6 3 6.4. BATTERY REPLACEMENT ............6 4 7. TECHNICAL SPECIFICATION ............. 6 7 8.

  • Page 8: Introduction

    Clock, calendar, daily alarm, stopwatch, downtimer, dual time • User definable display fields 1.1. SAFETY PRECAUTIONS Do not attempt to use D3 without reading this instruction manual in its entirety, including all the warnings. Make sure that you fully understand the SuuntoD3.p65 31.1.2002, 14:16...

  • Page 9: Emergency Ascents

    It is not a substitute for certified scuba instruction or freediving training. 1.1.1. EMERGENCY ASCENTS In the unlikely event that D3 malfunctions during a dive, follow the emergency procedures provided by your certified dive training agency or, alternatively, STEP 1: Assess the situation calmly and then move promptly to less than 18 m [60 ft].
  • Page 10 DIVING IS NOT RECOMMENDED. You should avoid freediving and not exceed five meters [16 ft] for at least two hours after scuba diving. Suunto also recommends you to be trained in freediving technique and physiology before conducting breathhold dives. No dive computer can replace the need for proper dive training.

  • Page 11: Getting Acquainted

    (set to OFF) and the instrument can be used as a sports watch on land or in water. 2.2. PUSH BUTTONS The D3 is controlled with four push buttons as follows (see Fig. 2.1.). M (MODE) • To change from a main mode to an other main mode press the mode button.
  • Page 12 • To select the display in the Logbook Mode press the select button. • To select the dive planning mode in the dive surface modes. • To make a special bookmark in the profile memory during a dive +, - •...

  • Page 13: Water Contacts

    The water contacts consist of the PC-interface poles and the four push-buttons of the D3 (Fig. 2.2). When the PC-interface poles and one of the push-buttons are connected by the conductivity of the water the Surface or Diving Mode is automatically activated.

  • Page 14: Time Mode [Time]

    (see chapter 4). a mode indicator. 2.4.1. TIMEKEEPING DISPLAY The timekeeping display is the primary display of the D3 (Fig. 2.5.). When the Time Mode is entered from other modes, the timekeeping display activates within two seconds, if no button is operated.

  • Page 15: Stopwatch [Timer

    D3 will show the selected option. The TIMER text blinks on the display if the stopwatch is running. The display is illuminated by holding down the M button for more than two seconds. To set the time and date, refer to chapter 4.1 ”Setting Time, Date and Dual Time”.
  • Page 16 Use the + and - buttons to operate the elapsed time measurement, split time measurement or the times of two runners as follows: Diving with the D3 or performing data transfer will stop the stopwatch. However, it is possible to use stopwatch function when diving, if both the GAUGE and the FREE diving modes are disabled (set to OFF, see chapter 4.4.).

  • Page 17: Downtimer [Timer

    (Fig. 2.9). If the downtimer has been set for a continuous countdown, the watch begins a new countdown after the previous one automatically. Diving with the D3 or performing data transfer will stop the downtimer. However, it is possible to use downtimer function normally, if the GAUGE and the FREE diving modes are disabled (set to Fig.

  • Page 18: Diving With The D3

    This section contains instructions on how to selected. operate the freediving computer and interpret its displays. You will find that the D3 is easy to use and read. Each display shows only the data relevant to that specific diving situation.

  • Page 19: Before Diving

    Ready display confirming that activation complete (Fig. 3.5). If set to Free mode, the D3 will go directly to the ready display without the display and battery checks (Fig 3.6). Fig. 3.4. Startup II. Battery Power Indicator. SuuntoD3.p65...

  • Page 20: Battery Power Indicator And Low Battery Warning

    NOTE: The surface interval time does not run before the first dive. After activation of the Dive Mode or after diving, the D3 will automatically switch to show the time keeping display within 5 minutes in Gauge Mode and 10 minutes in Free Mode to conserve the battery power, if you do not press any buttons.
  • Page 21 notice of impending need to change the battery. The Battery Power Indicator can be seen as the Dive Mode is activated. The electroluminescent backlight will be on during the battery check. The following Table and Figure show the various warning levels. TABLE 3.1.

  • Page 22: User Definable Functions And Alarms

    The Low Battery symbol is displayed in both Free and Gauge Modes. 3.1.3. USER DEFINABLE FUNCTIONS AND ALARMS This D3 has several User Definable Functions and Fig. 3.8. Bookmark activation. depth and time related alarms that you can set An annotation, Bookmark, is according to your personal preference.

  • Page 23: Presetting Time Alarm

    These Bookmarks will be shown as a Diver Attention Symbol when scrolling the profile memory on the computer display (Fig. 3.8). The Bookmarks will also be shown as annotations in the PC-software, Suunto Dive Manager. To make a bookmark on the profile memory during a dive press the S button.

  • Page 24: Freediving

    (See Chapter 4.3 Dive Mode Settings). If set to Free Mode the text FREE is shown after activation (Fig. 3.9.). The D3 also provides time and depth alarms that can be set to assist the freediver during the dive (See Chapter 4.5 Dive Alarm Settings).

  • Page 25: During The Freedive

    Preset with the - button in the lower left corner of the display (Fig. 3.10.) • the maximum depth or • the temperature. Preset with the + button in the lower right corner of the display (Fig. 3.10.) • the dive time, Fig.

  • Page 26: Freediving Day History

    3.2.4. FREEDIVING DAY HISTORY It is possible at any time in the Free Surface Mode to enter the Freediving Day History Mode, simply by pressing the S button. After showing the text DAY HIS and the mode indicator (Fig. 3.12.), the display will show (Fig. 3.13.): •...

  • Page 27: Surface Interval After Afreedive

    3.2.5. SURFACE INTERVAL AFTER A FREEDIVE An ascent to any depth shallower than 1.2 m [4 ft] will cause the DIVING display to be replaced by the SURFACE display, giving the following information (Fig. 3.14.): • the surface time in minutes and seconds (separated by a colon), telling the duration of the present surface interval.

  • Page 28: Gauge Diving

    3.3. GAUGE DIVING 3.3.1 MAXIMUM OPERATING DEPTH PLANNER [MOD] The MOD planner allows a diver using air, nitrox or trimix mixes to determine the maximum depth at which the gas is breathable within selected PO Fig. 3.15. Maximum Operation limits. Depth Planner.

  • Page 29: Presetting The Displays In The Gauge Mode

    4. While the O % level is blinking, press the + and - buttons to increase and decrease the O % level. The corresponding MOD is shown on the display. 5.While the PO level is selected, press the + and - to increase and decrease the PO level.

  • Page 30: Basic Dive Data

    3.3.3. BASIC DIVE DATA The dive computer will remain in the Surface mode at depths less than 1.2 m [4 feet]. At depths greater than 1.2 m the instrument will go into the Diving mode (Fig. 3.17.). During a dive, the following information will be displayed (Fig.

  • Page 31: Ascent Rate Indicator

    3.3.4. ASCENT RATE INDICATOR The ascent rate is shown graphically (Fig.3.19) along the left side of the display as follows: TABLE 3.2. ASCENT RATE INDICATOR Fig. 3.19. Ascent Rate Indicator. The segments indicate the speed of the ascent. When the maximum allowed ascent rate is exceeded, the SLOW warning appears, alternating with the dive depth, indicating that the maximum ascent rate has been exceeded continuously or...

  • Page 32: Surface Interval After Agauge Dive

    Whenever the SLOW warning segment appears (Fig. 3.20.), you should immediately slow down your ascent. NOTE: The Ascent Rate indicator is available in Gauge Mode only. WARNING Fig. 3.20. Ascent Rate Indicator. Do not exceed the maximum ascent rate! Blinking SLOW four Rapid ascents increase the risk of injury.

  • Page 33: Dive Numbering

    Or in the lower display according the selection and mode: • dive time of most recent dive in minutes labeled with DIVE TIME • the current time labeled with TIME • maximum depth labeled with MAX • the current temperature with °C for Centigrade [or °F for Fahrenheit] 3.3.6 DIVE NUMBERING Several repetitive dives in the Gauge mode are considered to belong to the...

  • Page 34: Flying After Diving

    3.3.7. FLYING AFTER DIVING The Suunto D3 provides no calculations for no-fly times. However, Divers Alert Network (DAN) recommends the following on no-flying times: • A minimum surface interval of 12 hours would be required in order to be reasonably assured a diver will remain symptom free upon ascent to altitude in a commercial jetliner (altitude up to 2400 m [8000 ft]).

  • Page 35: Audible And Visual Alarms

    3.4. AUDIBLE AND VISUAL ALARMS The Suunto D3 features audible and visual alarms to advise when important limits are approached or to acknowledge preset alarms. A short single beep occurs when: • the dive computer automatically returns to the Time Mode.
  • Page 36 • The preset dive time is reached in Free Mode • continuous beep series for 3 seconds. • The preset alarm time is reached • the current time is shown. • continuous beep series for 24 seconds or until any button is pressed. Fig.

  • Page 37: Setting Mode [Set]

    4. SETTING MODE [SET] The time, date, dual time, daily alarm, gauge and free dive selections and settings, dive time and depth alarms and unit adjustments are set in the Setting Mode (Fig. 4.1.). Enter the Setting Mode from other modes by pressing the M button.
  • Page 38 3. Press S to change the selection in the following sequence: - > seconds - > hours - > minutes - > 12/24 hour format - > year - > month - > day - > dual (home) time hours - > minutes 4.

  • Page 39: Daily Alarm Setting [Alm]

    M button for more than two seconds. Fig. 4.6. Daily Alarm Setting Mode. 4.2. DAILY ALARM SETTING [ALM] You can set one daily alarm in the D3. When the daily alarm activates, the -symbol blinks for 1 minute and the alarm sounds for 24 seconds. The alarm is given at the preset time each day.
  • Page 40 3. Press S to change the selection in the following sequence: - >On/OFF status - > hours - > minutes 4. While the alarm status [On/OFF] is selected (blinking) press + or - to change the status. When the alarm status is On, the daily alarm indicator ( -symbol) in the bottom right corner of the display indicates that the alarm is on.

  • Page 41: Timer Settings [Timer

    4.3. TIMER SETTINGS [TIMER D] In this mode you can set the countdown time for the downtimer. The downtimer also has an alarm repeat function for continuous downtimer alarm. To set the downtimer: 1.In the Setting Mode, press S three (3) times to Fig.

  • Page 42: Dive Mode Settings [Dive]

    OFF. If the dive modes are turned OFF, the dive computer functions are disabled, thus turning the D3 into a mere water resistant sportswatch. NOTE: If the DIVE Mode is disabled (set to OFF), the instrument will not activate the selected diving mode (Gauge, Free) when submerged.
  • Page 43 [On/OFF] starts to blink on the display and the selected dive mode (GAUGE or FREE) is dis- played (Fig. 4.11.) While the enable/disable status [On/OFF] is selected (blinking) press + or - to change the status. 3. Press S to change the selection in the Fig.

  • Page 44: Set Free Mode

    4.4.2. SET FREE MODE To set the FREE Mode: 1. In the Setting Mode, press S four (4) times to select the Dive Setting Mode (Fig. 4.10.). 2. Wait two seconds until the Dive Setting Mode activates automatically. The enable/disable status [On/OFF] starts to blink on the display and the selected dive mode (GAUGE or FREE) is displayed (Fig.

  • Page 45: Dive Alarm Settings [Dive

    4.5. DIVE ALARM SETTINGS [DIVE AL] You can set one depth alarm in the D3. When the depth alarm activates, the -symbol blinks as long as the present depth value exceeds the adjusted value and the alarm sounds for 24 seconds.
  • Page 46 the alarm status is On, the depth alarm indicator -symbol) in the bottom right corner of the display indicates that the alarm is on. 5. While the depth digits are selected (blinking), press + to increase the value or - to decrease it at intervals of 0.5 m [1 ft].

  • Page 47: Unit Adjustment Settings[Adj]

    4.6. UNIT ADJUSTMENT SETTINGS [AdJ] In this setting mode also the desired units can be selected (metric, m/°C or imperial, ft/°F). To set the new Unit Adjustments: 1. In the Setting Mode [SET], press S six (6) Fig. 4.16. Unit Adjustment times to select the Unit Adjustment Mode (Fig.

  • Page 48: Memory And Data Transfer [Mem]

    5. MEMORY AND DATA TRANSFER [MEM] The memory functions for the D3 include the combined Logbook and Dive Profile Memory, Dive History Memories for gauge and free dives and the Data Transfer and PC-Interface functions. Fig. 5.1. Memory Mode. NOTE: After diving in the gauge mode, the memory mode cannot be accessed until 5 minutes after the dive.

  • Page 49: Logbook And Dive Profile Memory [Log]

    5.1. LOGBOOK AND DIVE PROFILE MEMORY [LOG] This instrument has a sophisticated high capacity Logbook and Profile Memory. The data is recorded to the profile memory based on the sampling rate. The sampling rate in Gauge mode is adjustable to 10, 20, 30 and 60 s, and in Free mode 1 s.
  • Page 50 Note that chronological sequence in the logbook is determined by the date, not by the dive number. The following information will be shown on four pages: Page I, main display (Fig. 5.3.) • dive number in the dive series, Gauge dives are indicated by a D number and Freedives Fig.
  • Page 51 Page III (Fig. 5.5.) • average depth • surface interval time before the dive • temperature at the maximum depth Page IV (Fig. 5.6.) • the profile of the dive, automatic scrolling during which: Fig. 5.6. Logbook, Page IV. Profile of specific time. •...
  • Page 52 The depths shown are the maximum values of each sampling interval. After the last depth figure of the selected profile, the D3 automatically returns to Display I of the same dive in the Logbook. If desired, the profile of the same dive can be recalled again following the above procedure.

  • Page 53: Dive History Memory [His]

    5.2. DIVE HISTORY MEMORY [HIS] The Dive History is a summary of all the gauge and free dives recorded by the D3. Gauge and Freediving histories are kept separate. To enter the Dive History Memory Mode: 1. In the Memory Mode [MEM], press S two (2) times to select the Dive History Memory Mode Fig.
  • Page 54 NOTE: The maximum depth can be reset to 0.0 m [0 ft] using the optional Suunto Dive Manager PC-Interface. 3. To enter the Freedive History Memory Mode press the - or + buttons once when the History Memory is selected. The following Free dive information will be shown on the display (Fig.

  • Page 55: Data Transfer And Pc-Interface [Tr

    The data transfer is carried out using the water contact of the D3. The following data is transferred to the PC: •...
  • Page 56 M to exit Data Transfer Mode [TR-PC] and enter the Memory Mode [MEM]. If no button is operated or no data is transferred within 5 minutes, the D3 beeps and returns to the time- keeping display automatically. SuuntoD3.p65 31.1.2002, 14:17...

  • Page 57: Suuntosports.com

    Using the PC software, you are able to enter setup options such as: • input a personal, 30 character field into the D3 (i.e. your name) • reset the Dive History’s max depth to zero. 5.4 SUUNTOSPORTS.COM SuuntoSports.com is an international free web community where you can...
  • Page 58 MY SUUNTO The My Suunto section of the site is meant for your personal information. You can store information about yourself, your wristop computer, your sporting and training activities, etc. When you upload your personal logs to SuuntoSports.com they are displayed in your personal information.
  • Page 59 You can also publish your logs and compare them with other users’ logs. The My Suunto section also contains a personal calendar that you can use to mark personal events and other useful information.
  • Page 60 To join the SuuntoSports.com community, connect to the Internet, open your web browser and go to www.suuntosports.com. When the opening page appears, click the Register icon and register yourself and your Suunto sports instrument. You can change and update your personal and equipment profiles in My Suunto section afterwards.

  • Page 61: Care And Maintenance

    • Every two years or after 200 dives (whichever comes first) have your D3 serviced by an authorized dealer or distributor. This service will include a general operational check, replacement of the battery and a water resistance check and if needed, replacement of the seals, buttons, or display.

  • Page 62: Maintenance

    (see chapter 3.1.2.). • Do not fasten the strap of your D3 too tightly. You should be able to insert your finger between the strap and your wrist. Use the extension strap when fastening the D3 on your exposure suit.

  • Page 63: Water Resistance Inspection

    Check the display for possible moisture or water. DO NOT use the D3 if you detect any moisture or water inside. CAUTION! • do not use compressed air to blow water off the unit •...

  • Page 64: Battery Replacement

    6.4. BATTERY REPLACEMENT NOTE: It is advisable to contact an authorized Suunto dealer 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 65 Check for any traces of flooding or other damage. In case of a leak or any other damage, bring the dive computer to an authorized SUUNTO dealer or distributor for check and repair.
  • Page 66 lid, even if they seem to be in good condition. 7. Check that the battery compartment surfaces are clean. Clean with soft cloth if necessary. 8. Gently insert the new battery under the battery retainer/contact. Check the polarity of the battery: the “-” mark should point toward the bottom of the compartment and the “+”...

  • Page 67: Technical Specification

    7. TECHNICAL DESCRIPTION 7.1. TECHNICAL SPECIFICATION Dimensions and weight: • Width: 48.9 mm [1.92 in] • Height: 54.8 mm [2.16 in] • Thickness: 15.8 mm [0.62 in] • Weight: 50.3 g [1.78 oz] Depth Gauge: • Temperature compensated pressure sensor. •...
  • Page 68 Calendar Clock: • Accuracy: ± 15 s /month (at 20ºC [68ºF]) • 12/24 h display Other displays: • Dive time: 0 to 999 min (Gauge mode), 0 to 99 min (Free mode) • Surface time: 48h 5 min (Gauge mode), 24h (Free mode) •...
  • Page 69 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 D3 be stored in a dry place at room temperature. Battery • One 3 V lithium battery; CR 2032 •...
  • Page 70 The following conditions have an affect on the expected battery lifetime: • The length and type of the dives. • The condition in which the unit is operated and stored (e.g. temperature/cold conditions). Below 10°C [50°F] the expected battery lifetime may be 50-75% of that at 20°C [68°F]. •...

  • Page 71: Warranty

    This Suunto dive computer is warranted against defects in workmanship and materials for a period of two years after purchase to the original owner subject to and in accordance with the terms and conditions set forth below: The dive computer should be serviced or repaired only by an authorized Suunto dealer or distributor.
  • Page 72 All implied warranties, including but not limited to the implied warranties of merchantability and fitness for a particular purpose, are limited from date of purchase and in scope to the warranties expressed herein. Suunto shall not be liable for loss of use of the product or other incidental or consequential costs, expenses or damage incurred by the purchase.

  • Page 73: Glossary

    9. GLOSSARY Altitude dive A dive made at an elevation greater than 300 m [1000 ft] above sea level. Apnea Absence of breathing. Freedivers are apneic throughout the duration of their dive. Ascent rate The speed at which the diver ascends toward the surface. ASC RATE Abbreviation for ascent rate.
  • Page 74 Dive time Elapsed time between leaving the surface to descend, and returning to the surface at the end of a dive. Abbreviation for enriched air nitrox. Enriched Air Nitrox Oxygen-Nitrogen mix, normally with more than 21% oxygen. Freediver A breath-holding diver whose only source of oxygen are his lungs filled with surface air.
  • Page 75 maximum depth at which gas is breathable with selected limit. NITROX In sports diving refers to any mix with a higher fraction of oxygen than standard air. NOAA United States National Oceanic and Atmospheric Administration. No-decompression time The maximum amount of time a diver may remain at a particular depth without having to make decompression stops during the subsequent ascent.
  • Page 76 after one or more dives. Shallow - water blackout (SWB) An unconscious state divers experience when the brain becomes deprived of oxygen. SWB frequently happens without warning, causing death by subsequent drowning. Static apnea blackout Unconsciousness due to gradual oxygen depletion caused by holding one’s breath too long.
  • Page 77 SuuntoD3.p65 31.1.2002, 14:17...

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