Suunto COBRA3 User Guide Bedienungsanleitung

enUSER’S GUIDECOBRA3

WARNINGSUUNTO STRONGLY RECOMMENDS THAT SPORT DIVERSLIMIT THEIR MAXIMUM DEPTH TO 40 M/130 FT OR TO THEDEPTH CALCULATED BY THE COMPUTER BASED ON THESELE

10.2.2. No-decompression limits for airThe no-decompression limits displayed by the dive computer for the first dive to asingle depth (see Table 10.1,

No-decompression time limits (mins) for various depths (m)for the first dive of a seriesPersonal Mode / Altitude ModeDepth(m)P2/A2P2/A1P2/A0P1/A2P1/A1

No-decompression time limits (mins) for various depths (ft)for the first dive of a seriesPersonal Mode / Altitude ModeDepth(ft)P2/A2P2/A1P2/A0P1/A2P1/

As a result, the allowed no-decompression-stop limits are considerably reduced.10.3. Oxygen exposureThe oxygen exposure calculations are based on curr

11. INTELLECTUAL PROPERTY11.1. TrademarkSuunto is a registered trademark of Suunto Oy.11.2. Copyright© Suunto Oy 08/2011. All rights reserved.11.3. Pa

12. DISCLAIMERS12.1. CEThe CE mark is used to mark conformity with the European Union EMC directive89/336/EEC.12.2. EN 13319EN 13319 is a European div

13. SUUNTO LIMITED WARRANTYSuunto warrants that during the Warranty Period Suunto or a Suunto AuthorizedService Center (hereinafter Service Center) wi

3.serial number has been removed, altered or made illegible in any way, as determ-ined at the sole discretion of Suunto;4.has been exposed to chemical

14. DISPOSAL OF THE DEVICEPlease dispose of the device in an appropriate way, treating it as electronic waste. Donot throw it in the garbage. If you w

GLOSSARYAir timeThe amount of dive time remaining, based on a calculation of cylinderpressure and ambient pressure and present air consumption.Altitud

WARNINGYOU 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

DM4Suunto DM4 with Movescount, a software for managing your divesDecompressionTime spent at a decompression stop, or range, before surfacing, to allow

Half timeAfter a change in ambient pressure, the amount of time required for thepartial pressure of nitrogen in a theoretical compartment to go half w

Oxygen limit fractionA term used by Suunto for the values displayed in the oxygen toxicity bargraph. The value is either the CNS% or the OTU%.O2%Oxyge

Whole-body toxicityAnother form of oxygen toxicity, which is caused by prolonged exposureto high oxygen partial pressures. The most common symptoms ar

  SUUNTO HELP DESKGlobal  +358 2 284 1160USA (toll free)  +1-800-543-9124Canada (toll free)  +1-800-267-7506www.suunto.comCopyright © Suunto Oy 09/200

WARNINGTHE DIVE COMPUTER WILL NOT ACCEPT FRACTIONALPERCENTAGE VALUES OF OXYGEN CONCENTRATION. DONOT ROUND UP FRACTIONAL PERCENTAGES! For example,31.8%

WARNINGSET THE CORRECT PERSONAL ADJUSTMENT MODE!Whenever it is believed that factors that tend to increase thepossibility of DCI exist, it is recommen

WARNINGNEVER ASCEND ABOVE THE CEILING! You must not ascendabove the ceiling during your decompression. In order to avoiddoing so by accident, you shou

WARNINGTraveling to a higher elevation can temporarily cause a changein the equilibrium of dissolved nitrogen in the body. It is recom-mended that you

WARNINGAlways use realistic SAC rates and conservative turn pressuresduring dive planning. Overly optimistic or erroneous gas planningcan result in th

3. SUUNTO USER INTERFACE3.1. Navigating in the menusSuunto Cobra3 has four main operating modes - TIME mode (TIME), DIVE mode(DIVE), PLAN mode (PLAN),

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3.2. Button symbols and functionsThe table below explains the main functions of the dive computer's buttons. The buttonsand their use is explaine

Tank pressureTime

Main functionsPressButtonSymbolToggle between alternative displaysChange submodeIncrease valuesShortUPActivate gas switching in NITROX modeLongUPToggl

4. GETTING STARTEDTo get the most out of your Suunto Cobra3, use some time to personalize it and reallymake it YOUR computer. Set the correct time and

4.1.1. Setting the alarmThe dive computer has a daily alarm function. When the daily alarm activates, thescreen blinks and the alarm sounds for 60 sec

4.1.3. Setting the dateIn the Date setting mode, you are able to set the year, month, and day. The day ofthe week is automatically calculated in accor

4.1.5. Setting the tonesIn the Tones setting mode, you are able to activate or deactivate the tones.ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELEC

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

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 D

4.3.2. Locking a bearingA bearing can be locked to help you follow a selected course, and directional arrowspoint towards the locked bearing. The last

ExplanationSymbolYou are 180 degrees from the locked bearingYou are 120 (or 240) degrees from the locked bearing4.3.3. Compass settingsYou can define

First the compass is level calibrated and after a successful level calibration, the com-pass is tilt calibrated. The tilt calibration compensates for

1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS ... . ... . ... . 72. WARNINGS, CAUTIONS, AND NOTES ... . ... ... ... ... . ... . ...

To calibrate the compass:HOLD THE DEVICE LEVEL AND SLOWLY ROTATE 360°.HOLD THE DEVICE STILL AND SLOWLY TILT 90° VERTICALLY.If the calibration fails se

ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON.Time-outYou can set the compass time-out to 1, 3, or 5 minutes. After the set time has pass

5. BEFORE DIVINGDo not attempt to use the dive computer without reading this user's guide in its entirety,including all the warnings. Make sure t

The Suunto Cobra3 uses traditional recommended safety stops as well as deep stops.YOU ARE ADVISED TO MAKE A DEEPSTOP AT 18 M. THE SECOND INDICATOR SHO

5.3. Dive computer limitationsWhile the dive computer is based on current decompression research and technology,you must realize that the computer can

Alarm reasonAlarm typeCylinder pressure reaches 50 bar/725 psi. The cylinderpressure display will start to blink.Three beeps with a threesecond interv

Table 5.2. Preset alarm typesAlarm reasonAlarm typePreset maximum depth hasbeen exceeded.Continuous beep series for 24 secondsMaximum depth blinks as

NOTEWhen the backlight is turned OFF, it does not illuminate when analarm is activated.WARNINGWHEN THE OXYGEN LIMIT FRACTION INDICATES THAT THEMAXIMUM

When the dive computer is in the permanent Error mode, only the Er warning is shownin the center window. The dive computer does not show times for asc

5.7. DIVE mode settingsSuunto Cobra3 has several user-definable functions, as well as depth and time-relatedalarms that you can set according to your

5.6.1. Connecting Suunto Cobra3 to a regulator . ... . ... ... ... ... . ... . 385.7. DIVE mode settings ... . ... . ... . ... ... ..

5.7.1. Setting the depth alarmADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON.The depth alarm is factory-set to 30 m/100 ft, but you can ad

5.7.3. Setting the nitrox valuesIf set to the NITROX mode, the correct oxygen percentage of the gas in your cylinder(and additional gases) must always

NOTEIf MIX2 is set ON, settings for all mixes are stored until changed.If MIX2 has an oxygen content of 22% or greater, settings for allmixes are stor

ADJUST WITH UP AND DOWN BUTTONS. ACCEPTWITH SELECT BUTTON.5.7.6. Setting the Safety Stops/deep stopsIn the AIR mode in the Deep Stops setting mode, th

ADJUST WITH UP AND DOWN BUTTONS. ACCEPTWITH SELECT BUTTON.5.7.8. Setting the unitsIn the Unit settings you are able to choose between metric (meters/C

ADJUST WITH UP AND DOWN BUTTONS. ACCEPTWITH SELECT BUTTON.5.8. Activation and pre-checksThis section describes how to activate the DIVE mode and expla

5.8.2. DIVE mode activationThe dive computer activates automatically when submerged deeper than 0.5 m/1.5ft. However, it is necessary to activate the

•the instrument operates in the correct mode and provides a complete display(AIR/NITROX/GAUGE mode)•the battery level is ok.•the altitude, personal ad

If the battery symbol is displayed in the Surface mode, or if the display is faded orweak, the battery may be too low to operate the dive computer, an

Table 5.4. Altitude Adjustment settingsAltitude rangeAlt. adjustmentvalue0–300 m / 0–1000 ftA0300–1500 m / 1000–5000 ftA11500–3000 m / 5000–10 000 ftA

6.1.2. Bookmark ... ... ... ... . ... . ... . ... . ... ... ... ... . ... . ... . ... 586.1.3. Tank pressure data ... ... ... .

The personal factors which tend to increase the possibility of DCI include, but are notlimited to:•cold exposure —water temperature less than 20 °C/68

Table 5.5. Personal Adjustment settingsDesired tablesConditionPersonal adjust-ment valueDefaultIdeal conditionsP0Progressively more conservativeSome r

EffectDesired TablesRGBM settingSmaller RGBM effects, higher risk!Attenuated RGBM model50%5.9. Safety StopsSafety Stops are widely considered good div

WHEN STOP IS DISPLAYED, MAKE A RECOMMENDED SAFETY STOP FOR 3 MINUTES.NOTEThe Recommended Safety Stop, as the name implies, is recom-mended. If it is i

WHEN CEILING AND STOP ARE DISPLAYED, MAKE A ONE MINUTE MANDATORY SAFETY STOP IN THE DEPTH ZONE BETWEEN 6 M AND 3 M.You must not ascend shallower than

5.10. Deep stopsDeep stops are safety stops that occur deeper than traditional stops, with the purposeof minimizing microbubble formation and excitati

6. DIVINGThis section contains instructions on how to operate the dive computer and interpretits displays. The dive computer is easy to use and read.

•your present depth in meters/feet•the available no-decompression time in minutes as NO DEC TIME•the ascent rate presented as a bar graph on the right

DOWN BUTTON TOGGLESBETWEEN MAXIMUM DEPTH, CURRENT TIME AND TANK PRESSURE.UP BUTTON TOGGLES BETWEEN DIVE TIME AND WATER TEMPERATURE.6.1.2. BookmarkIt i

A BOOKMARK IS PLACED IN THE PROFILE MEMORY DURING A DIVE BY PRESSING THE SELECT BUTTON.6.1.3. Tank pressure dataThe pressure of your scuba cylinder in

8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER ... . ... . 889. BATTERY REPLACEMENT ... ... ... . ... . ... . ... . ... . ... ...

The change in your air consumption is based on constant one second interval pressuremeasurements over 30–60 second periods. An increase in air consump

6.1.4. Ascent rate indicatorThe ascent rate is shown graphically along the right hand side. When the maximumallowed ascent rate is exceeded, the lower

6.1.5. Safety StopsA three (3) minute Recommended Safety Stop is prompted after every dive to over10 m.6.1.6. Decompression divesWhen your NO DEC TIME

NOTEIn addition, there may also be Mandatory Safety Stops which arenot displayed in ASC TIME.WARNINGYOUR ACTUAL ASCENT TIME MAY BE LONGER THAN DIS-PLA

The depth of the ceiling and floor depends on your dive profile. The ceiling depth willbe fairly shallow when you enter the decompression mode, but if

Display below the floorThe blinking ASC TIME sign and an upward pointing arrow indicate that you are belowthe floor. You should start your ascent imme

Decompression will now begin, but is very slow. Therefore, you should continue yourascent.Display at the ceiling zoneWhen you reach the ceiling zone,

DECOMPRESSION DIVE, ABOVE CEILING. NOTE DOWNWARD POINTING ARROW, ER WARNING AND ALARM. YOU SHOULD IMMEDIATLY (WITHIN 3 MINUTES) DES CEND TO OR BELOW C

to be understated and will affect decompression calculations. If you want to adjust thecomputer to provide more conservative calculations, use the per

6.2.2. Oxygen displaysWhen the NITROX mode is activated, the display will show the information in the figurebelow. In the NITROX mode, the maximum ope

1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERSSuunto Cobra3 wristop dive computer is designed to help you get the most out of yourdiving. By reading

UP BUTTON TOGGLES BETWEEN PO2, OLF, DIVE TIME AND WATER TEMPERATURE.DOWN BUTTON TOGGLES BETWEEN O2, MAXIMUM DEPTH TANK PRESSURE AND CURRENT TIME.6.2.3

The Oxygen Limit Fraction (OLF%) displays only the value of the higher of the twocalculations. The oxygen toxicity calculations are based on the facto

NOTEIf no button is pressed in 15 seconds, the dive computer will goback to the dive display without changing the gas mix. Upon as-cent, the computer

NOTEThe GAUGE mode does not provide decompression information.NOTEThere is no ascent rate monitoring in the GAUGE mode.NOTEIf you dive with the GAUGE

7. AFTER DIVINGOnce back at the surface, Suunto Cobra3 continues to provide post-dive safety inform-ation and alarms. Calculations to enable repetitiv

Or, in the alternative displays, the following information will be shown:•maximum depth of last dive in meters/feet•dive time of last dive in minutes,

7.3. Repetitive dive planningThe Suunto Cobra3 includes a dive planner that allows you to review the no-decom-pression limits on a subsequent dive, ta

•Divers who plan to make daily, multiple dives for several days, or make dives thatrequire decompression stops, should take special precautions and wa

7.5.1. DIVE PLANNING mode (PLAN NoDec)The DIVE PLANNING mode displays no-decompression times for a new dive, takinginto account the effects of previou

WHEN ENTERING THE PLANNODEC MODE THE DISPLAY FIRST BRIEFLY SHOWS TISSUE LOADING, THE REMAINING DESATURATION TIME BEFORE GOING INTO PLAN MODE. USE UP A

2. WARNINGS, CAUTIONS, AND NOTESThroughout this user's guide, important safety icons are displayed. Three classificationsare used to separate the

Higher Altitude and conservative Personal Adjustment settings will shorten the no-decompression time limits. These limits at different Altitude and Pe

PRESS UP OR DOWN BUTTONS TO DESCEND OR ASCEND.The mode can also be used to add the desired surface intervals for dive simulations.Add the desired surf

7.6.1. Dive logbook (MEM Logbook)The Suunto Cobra3 has a very sophisticated, high capacity Logbook and ProfileMemory. The data is recorded in the prof

THERE ARE THREE PAGES OF LOGBOOK DIVE INFORMATION. USE SELECT BUTTON TO SCROLL BETWEEN LOGBOOK PAGES I, II, AND III. THE DATA OF THE MOST RECENT DIVE

•warnings•consumed tank pressurePage III•water temperature•tank pressureNOTEThe memory will retain approximately the last 42 hours of divetime. After

DIVE HISTORY DISPLAY. TOTAL NUMBER OF DIVES, DIVE HOURS AND MAXIMUM DEPTH.The Dive History Memory can hold a maximum of 999 dives and 999 diving hours

• depth profile of the dive• dive time• preceding surface interval time• dive number• dive start time (year, month, day, and time)• dive computer sett

7.8. MovescountMovescount is an online sports community that offers you a rich set of tools to manageall you sports and create engaging stories about

8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COM-PUTERThe SUUNTO dive computer is a sophisticated precision instrument. Although it isdesigned to withs

• Should moisture appear inside the case or battery compartment, immediatelyhave the instrument checked by your SUUNTO dealer or distributor.• Should

WARNINGNOT FOR PROFESSIONAL USE! Suunto dive computers areintended for recreational use only. The demands of commercialor professional diving may expo

•MAINTENANCEThe instrument should be soaked, thoroughly rinsed with fresh water, then driedwith a soft towel after each dive. Make sure that all salt

9. BATTERY REPLACEMENTNOTEIt is advisable to contact an authorized Suunto representative forbattery replacement. It is imperative that the change is m

9.2. Required tools•A Phillips-head screwdriver.•Soft cloth for cleaning.•Needlenose pliers or small screwdriver for turning securing ring.9.3. Replac

8.Check for any traces of flooding, particularly between the beeper and the lid, orfor any other damage. In case of a leak or any other damage, bring

CAUTIONCheck after the first dives for possible moisture under the trans-parent battery compartment lid, indicating a leak.94

10. TECHNICAL DATA10.1. Technical specificationsDimensions and weight:• Diameter: width 73 mm/2.85 in, length 165 mm/6.50 in• Thickness: 35 mm/1.40 in

• Ceiling depths: 3.0 to 100 m /10 to 328 ft• Air time: 0 to 99 min (- - after 99)Temperature display:• Resolution: 1°C/1°F• Display range: -20 to +50

Tissue calculation model:• Suunto RGBM algorithm (developed by Suunto and Bruce R. Wienke, BSc, MSc,PhD)• 9 tissue compartments• Tissue compartment ha

•The use of the compass•The quality of the battery. (Some lithium batteries may exhaust unexpectedly,which cannot be tested in advance)•The time the d

•Incorporating consistency with real physical laws for gas kinetics10.2.1. Suunto RGBM adaptive decompressionThe Suunto RGBM algorithm adapts its pred