Suunto D4 - Manuals

WARNING THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONALPERCENTAGE VALUES OF OXYGEN CONCENTRATION. DONOT ROUND UP FRACTIONAL PERCENTAGES! For example,31.8% oxygen should be entered as 31%. Rounding up will causenitrogen percentages to be understated and will affect decompres-sion calculations. If you wa...

3. SUUNTO D4 AT A GLANCE UP D OW N SE LE C T M O D E Safety Stop Indicator No-Fly Icon Diver Attention Symbol Date Dual Time Maximum Depth O 2 (Nitrox Mode) Time Ascent Rate Bar Graph Active Water Contact Indicator Seconds Display Stopwatch Weekday Dive Time TemperaturePO 2 (Nitrox Mode) OLF% (Nitro...

Main functions Press Button Symbol Enter Setting mode Long DOWN 18

4. GETTING STARTED WITH YOUR SUUNTO D4 To get the most out of your Suunto D4, 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.Suunto D4 is a very user-friendly dive computer, and you will qui...

4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. NOTE When the tones are off, there are no audible alarms. 4.2. Stopwatch The Suunto D4’s stopwatch measures elapsed and split times. 4.3. AC water contacts The water and data 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. No-decompression dive turns into a DecompressionStop dive. An arrow pointing upwards and the blinkingascent warning ASC TIME will appe...

Table 5.2. Preset alarm types Alarm reason Alarm type Preset maximum depth hasbeen exceeded. Continuous beep series for 24 secondsMaximum depth blinks as long as the current depthvalue exceeds the preset value. Preset dive time has been ex-ceeded. Continuous beep series for 24 seconds or until anybu...

4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ USE UP AND DOWN BUTTONS TO TOGGLE BETWEEN DIVE SETTINGS. NOTE Some settings cannot be changed until 5 minutes has elapsedafter the dive. 5.8...

5.8.4. Setting the nitrox values If set to the NITROX mode, the correct oxygen percentage of the gas in your cylindermust always be entered into the computer to ensure correct nitrogen and oxygencalculations. In addition, the oxygen partial pressure limit must be set. When in theNITROX setting mode,...

When programming the instrument for the correct altitude, you need to select thecorrect Altitude Adjustment settings according to Table 5.5, Altitude Adjustment settings . The dive computer will adjust its mathematical model according to the entered altitudesetting, giving shorter no-decompression t...

5.9.5. 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 i...

Table 5.6. Personal Adjustment settings Desired tables Condition Personal ad-justment value Default Ideal conditions P0 Progressively more conservative Some risk factors or conditionsexist P1 Several risk factors or conditionsexist P2 The Suunto D4 also allows experienced divers who are willing to a...

Table 5.7. RGBM model settings Effect Desired Tables RGBM setting Full RGBM effects Standard Suunto RGBMmodel (Default) 100% Smaller RGBM effects, higher risk! Attenuated RGBM model 50% 5.10. Safety Stops Safety Stops are widely considered good diving practice for recreational diving, andare an inte...

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...

WARNING YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN DIS-PLAYED BY THE INSTRUMENT! The ascent time will increaseif you:• remain at depth • ascend slower than 10 m/33 ft per minute • make your decompression stop deeper than at the ceiling These factors will also increase the amount of air required tore...

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. 4/ # .6 - 2$ +$ " 3 , . # $ TWO ARROWS POINT AT EACH OTHER “HOUR GLASS”. YOU ARE IN THE...

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 ...

4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ The free dive ends as soon as you surface (at 0,5 m/ 1,6 ft). 4/ # .6 - 2$ +$ " 3 , . # $ NOTE The FREE mode does not provide decompression information. NOTE There is no ascent rate monitoring in the FREE mode. 6.3.1. Day History Th...

7. AFTER DIVING Once back at the surface, Suunto D4 continues to provide post-dive safety informationand alarms. Calculations to enable repetitive dive planning also help to maximize diversafety. Table 7.1. Alarms Indication Symbol on display Diver Attention Symbol - Extend Surface Interval Violated...

4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ 4/ # .6 - 2$ +$ " 3 , . # $ WHEN ENTERING THE MEMPLAN MODE THE DISPLAY FIRST BRIEFLY SHOWS THE REMAINING DESATURATION TIME BEFORE GOING INTO PLAN MODE. USE UP AND DOWN ...

Dive numbering shown during dive planning Dives belong to the same repetitive dive series if the instrument was still countingdown the no-fly time at the beginning of the dive.The surface interval must be at least 5 minutes for a dive to be considered a repetitivedive. Otherwise, it is considered a ...

7.5.3. Dive history (MEMHistory) The dive history is a summary of all the dives recorded by the dive computer.You can view both your scuba and free dive history. Scuba History The Scuba History can hold a maximum of 999 dives and 999 diving hours. Whenthese maximum values are reached, the counters w...

9. BATTERY REPLACEMENT NOTE It is advisable to contact an authorized Suunto representative forbattery replacement. It is imperative that the change is made ina proper manner to avoid any leakage of water into the batterycompartment or computer. CAUTION Defects caused by improper battery installation...

Displays only in NITROX mode: • Oxygen %: 21 - 50 • Oxygen partial pressure display: 0.5 - 1.6 bar • Oxygen Limit Fraction: 1 - 200% with 1% resolution Logbook/dive profile memory: • Air and Nitrox dive recording rate: default 20 seconds, adjustable 1, 10, 20, 30,60s • Free dive recording rate: defa...

Tissue calculation model: • Suunto Deep Stop RGBM algorithm (developed by Suunto and Bruce R. Wienke,BSc, MSc, PhD) • 9 tissue compartments • Tissue compartment halftimes: 2.5, 5, 10, 20, 40, 80, 120, 240 and 480 minutes(on gassing). The off gassing halftimes are slowed down • Reduced gradient (vari...

• The quality of the battery. (Some lithium batteries may exhaust unexpectedly,which cannot be tested in advance) • The time the dive computer has been stored until it gets to the customer. (Thebattery is installed in the unit at the factory) NOTE Low temperature or an internal oxidation of the batt...

10.2.1. 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 deco...

11. INTELLECTUAL PROPERTY 11.1. 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. 11.2. Trademark Suunto, D4, Consumed Bottom Time (CBT), Ox...

12. DISCLAIMERS 12.1. User’s responsibility This instrument is intended for recreational use only. Suunto D4 must not be used forobtaining measurements that require professional or industrial precision. 12.2. CE The CE mark is used to mark conformity with the European Union EMC directive89/336/EECFI...

2. user manuals or any third-party software (even if packed or sold with the Suuntohardware), settings, content or data, whether included or downloaded in theProduct, or whether included during installment, assembly, shipping or at anyother time in the delivery chain or otherwise and in any way acqu...

Other important notices Please remember to take backup copies of all important content and data stored inyour Product because content and data may be lost during repair or replacement ofthe Product. Suunto or a Suunto Authorized Service Centre is not responsible for anydamage or loss of any kind wha...

Limitation of Liability TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE MANDATORY LAWS,THIS LIMITED WARRANTY IS YOUR SOLE AND EXCLUSIVE REMEDY AND IS INLIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED. SUUNTO SHALLNOT BE LIABLE FOR SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIALDAMAGES, INCLUDING BUT ...

14. 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 Suunto repres-entative. 101

GLOSSARY 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. ASC RATE Abbreviation for ascent rate. Ascent time The minimum amount of time needed to reach the surface on a decom- pression stop dive...

CUSTOMER SERVICE CONTACTS Global Help Desk +358 2 284 11 60Suunto USA Phone +1 (800) 543-9124Canada Phone +1 (800) 776-7770 Suunto website www.suunto.com COPYRIGHT This publication and its contents are proprietary to Suunto Oy. Suunto, Wristop Computer, Suunto D4 and their logos are registered or un...