Suunto Cobra3 None manual

EN USER’S GUIDE COBRA3[...]

Ta nk pressure Ti me[...]

1. WELCOME T O THE WORLD OF SUUNT O DIVING INSTRUMENTS . . . . . . . . . . . . . . . . 5 2 . W A R N I N G S , C A U T I O N S , A N D N O T E S ................................................... 6 3 . S U U N T O A T A G L A N C E .................................................................... 9 3 . 1 . N a v i g a t i n g i n t h e m e n u [...]

6 . 1 . 5 . S a f e t y S t o p s ...................................................................... 2 9 6 . 1 . 6 . D e c o m p r e s s i o n d i v e s ........................................................... 2 9 6 . 2 . D i v i n g i n N I T R O X m o d e ( D I V E n i t r o x ) ............................................... 3 2 6 . 2 . 1[...]

1. WELCOME TO THE WORLD OF SUUNT O DIVING INSTRUMENTS Suunto Cobra3 was designed to help you get the most out of your diving. By reading this manual and becoming familiar with the functions of your dive computer , you can begin a new era in your diving. With integrated digital compass, air integration, and gas switching, Suunto Cobra3 simplifies yo[...]

2. W ARNINGS, CAUTIONS, AND NOTES Throughout this manual, important safety icons are displayed. Three classifications are used to separate these icons by their order of importance: W ARNING 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 tha[...]

W ARNING DIVES THA T REQUIRE DECOMPRESSION STOPS ARE NOT RECOMMENDED. YOU SHOULD ASCEND AND BEGIN DECOMPRESSION IMMEDIA TEL Y WHEN THE DIVE COMPUTER SHOWS YOU THA T A DECOMPRESSION STOP IS REQUIRED! Note the blinking ASC TIME symbol and the upward pointing arrow . W ARNING USE BACK-UP INSTRUMENTS! Make sure that you use back-up instrumentation, inc[...]

W ARNING SELECT THE CORRECT AL TITUDE ADJUSTMENT SETTING! 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 correc[...]

3. SUUNT O A T A GLANCE 3.1. Navigating in the menus Suunto Cobra3 has four main operating modes - TIME mode (TIME), DIVE mode (DIVE), PLAN mode (PLAN), and MEMOR Y mode (MEMORY) – as well as the COMP ASS submode, which can be activated from either TIME or DIVE modes. T o toggle between the main modes, press the MODE button. T o select a submode [...]

Main functions Press Button Symbol Enable gas switching in NITROX mode Long UP T oggle between alternative displays Change submode Decrease values Short DOWN Enter Setting mode T oggle between ceiling and remaining air time display Long DOWN 10[...]

4. GETTING ST ARTED WITH YOUR SUUNTO COBRA3 T o get the most out of your Suunto Cobra3, take some time to personalize it and really make it YOUR computer . Set the correct time and date, as well as the alarms and tones, unit and backlight settings. Then, calibrate and test the compass function. Suunto Cobra3 is a very user-friendly dive computer , [...]

ADJUST WITH UP AND DOWN BUTTONS. ACCEP T WITH SELECT BUTTON. 4.1.4. Setting the units In the UNITS SETTING mode you can choose to have the units displayed in either the metric or imperial system - meters/feet, Celsius/Fahrenheit etc. ADJUST WITH UP AND DOWN BUTTONS. ACCEP T WITH SELECT BUTTON. 4.1.5. Setting the backlight Use the BACKLIGHT SETTING [...]

AC APPEARS IN THE TOP RIGHT CORNER OF THE DISPLA Y , WHEN THE DIVE COMPUTER IS IN CONT ACT WITH W A TER. THIS ALSO ACTIV A TES THE DIVE MODE. Contamination or dirt on the water contact may prevent this automatic activation. It is therefore important that the water contact is kept clean. The contact can be cleaned with fresh water and a soft brush, [...]

T able 4.1. Locked bearing symbols Explanation Symbol Y ou are traveling towards the locked bearing Y ou are 90 (or 270) degrees from the locked bearing Y ou are 180 degrees from the locked bearing Y ou are 120 (or 240) degrees from the locked bearing 4.3.3. Compass settings Y ou can define the compass settings ( calibration, declination and time-o[...]

HOLD THE DEVICE LEVEL AND SLOWL Y ROT A TE 360°. HOLD THE DEVICE STILL AND SLOWL Y TIL T 90° VERTICALL Y . If the calibration fails several times in a row , it is possible that you are in an area with sources of magnetism, such as large metal objects, power lines or electric appliances. Move to another location and try to calibrate the compass ag[...]

5. BEFORE DIVING Do not attempt to use the dive computer without reading this user's manual in its entirety , including all the warnings. Make sure that you fully understand the use, displays, and limitations of the instrument. If you have any questions about the manual or the Suunto Cobra3, please contact your Suunto representative before div[...]

5.4. Nitrox Diving with nitrox provides you with an opportunity to increase bottom times or reduce the risk of decompression illness by reducing the nitrogen content in the gas mix. However , when the gas mix is altered, the oxygen content of the mix is generally increased. This increase exposes the diver to an oxygen toxicity risk not usually cons[...]

Alarm reason Alarm type Preset alarm time is reached. Continuous beep series for 24 seconds or until any button is pressed. Current time blinks for one minute T able 5.3. Oxygen alarms in NITROX mode Alarm reason Alarm type Set oxygen partial pressure limit is exceeded. The alternative display is replaced with a current blinking PO 2 value. Y ou sh[...]

5.7.1. Connecting Suunto Cobra3 to a regulator When purchasing the Suunto Cobra3, we strongly recommend that you have your Suunto representative attach it to the first stage of your regulator . However , if you decide to attach it yourself, follow the steps outlined below: 1. Remove the high pressure (HP) port plug on the first stage of your regula[...]

ADJUST WITH UP AND DOWN BUTTONS. ACCEP T WITH SELECT BUTTON. NOTE With a range of 1 - 999 minutes, the alarm can be set to your planned bottom time, for example. 5.8.3. Setting the nitrox values If set to the NITROX mode, the correct oxygen percentage of the gas in your cylinder (and additional gases) must always be entered into the computer to ens[...]

5.8.5. Setting the sample rate The sample rate controls how often the depth, time, tank pressure, and water temperature is stored in the memory . Y ou can set the dive profile sample rate to 1, 10, 20, 30, or 60 seconds. The factory default setting is 20 seconds. ADJUST WITH UP AND DOWN BUTTONS. ACCEP T WITH SELECT BUTTON. 5.8.6. Setting the Safety[...]

ADJUST WITH UP AND DOWN BUTTONS. ACCEP T WITH SELECT BUTTON. 5.9. Activation and pre-checks This section describes how to activate the DIVE mode and explains the pre-checks that it is highly recommended you perform before you get into the water . 5.9.1. Accessing DIVE mode The Suunto Cobra3 has three diving modes: AIR mode for diving with standard [...]

• the correct oxygen percentages are adjusted according to the measured oxygen percentages in your cylinders • the oxygen partial pressure limits are set correctly For more information on the NITROX mode, refer to Section 6.2. Diving in NITROX mode (DIVEnitrox) . The dive computer is now ready for diving. 5.9.3. Battery power indication T emper[...]

5.9.5. Personal adjustments There are personal factors that can af fect your susceptibility to DCI, which you can predict in advance, and input into the decompression model. Such factors vary between divers and also for the same diver from one day to another . The three-step Personal Adjustment setting is available if a more conservative dive plan [...]

5.10. Safety Stops Safety Stops are widely considered good diving practice for recreational diving, and are an integral part of most dive tables. The reasons for performing a Safety Stop include: reducing sub-clinical DCI, microbubble reduction, ascent control, and orientation before surfacing. The Suunto Cobra3 displays two different types of Safe[...]

WHEN CEILING AND S TOP ARE DISPLA YED, IMMEDIA TEL Y (WITHIN 3 MINUTES) DESCEND TO OR BELOW CEILING. If you continue to violate the Mandatory Safety Stop, the tissue calculation model is affected and the dive computer shortens the available no-decompression time for your next dive. In this situation, it is recommended that you prolong your surface [...]

6. DIVING This section contains instructions on how to operate the dive computer and interpret its displays. Y ou’ll find that this dive computer is easy to use and read. Each display shows only the data relevant to that specific diving mode. 6.1. Diving in AIR mode (DIVEair) In this section, we look at how to make the most of the dive computer w[...]

UP BUTT ON T OGGLES BETWEEN DIVE TIME AND W A TER TEMPERA TURE. 6.1.2. Bookmark It is possible to record bookmarks in the profile memory during a dive. These bookmarks are displayed when scrolling the profile memory on the display . The bookmarks will also be shown as annotations in the downloadable Suunto Dive Manager PC software. The bookmark log[...]

Low Air Pressure W arnings The dive computer will warn you with three audible double beeps and a blinking pressure display when the cylinder pressure reaches 50 bar/725 psi. Three double beeps are also heard when the cylinder pressure goes down to the user-selected alarm pressure and when the remaining air time reaches zero. 6.1.4. Ascent rate indi[...]

NOTE In addition, there may also be Mandatory Safety Stops which are not displayed in ASC TIME. W ARNING YOUR ACTUAL ASCENT TIME MA Y BE LONGER THAN DISPLA YED BY THE INSTRUMENT! The ascent time will increase if you: • remain at depth • ascend slower than 10 m/33 ft per minute • make your decompression stop deeper than at the ceiling These fa[...]

UPW ARD POINTING ARROW , BLINKING ASC TIME AND AN ALARM TELL YOU TO ASCEND. MINIMUM TOT AL ASCENT TIME INCLUDING MANDA TORY SAFETY STOP IS 15 MINUTES. CEILING IS A T 3 M. Display above the floor When you ascend above the floor , the ASC TIME display stops blinking and the upward pointing arrow disappears. Below is an example of a decompression dive[...]

6.2. Diving in NITROX mode (DIVEnitrox) NITROX mode (DIVEnitrox) is the second dive mode available in Suunto Cobra3 and is used when using oxygen-enriched gas mixtures. 6.2.1. Before diving in NITROX mode If set to the NITROX mode, the correct oxygen percentage of the gas in your cylinder must always be entered into the computer to ensure correct n[...]

UP BUTT ON TOGGLES BETWEEN PO 2 , OLF , DIVE TIME AND W A TER TEMPERA TURE. DOWN BUTTON TOGGLES BETWEEN O 2 , MAXIMUM DEPTH T ANK PRESSURE AND CURRENT TIME. 6.2.3. Oxygen limit fraction (OLF) If set to NITROX mode, in addition to tracking the diver's exposure to nitrogen, the instrument tracks the exposure to oxygen. These calculations are tre[...]

In the GAUGE mode, the total dive time is always displayed in minutes in the lower right corner . In addition, a Dive T imer in the center window displays time in minutes and seconds. The center window Dive T imer is activated at the start of the dive and it can be reset during the dive and used as a stopwatch by pressing the SELECT button. BY PRES[...]

7. AFTER DIVING Once back at the surface, Suunto Cobra3 continues to provide post-dive safety information and alarms. Calculations to enable repetitive dive planning also help to maximize diver safety . T able 7.1. Alarms Indication Symbol on display Diver Attention Symbol - Extend Surface Interval Violated Decompression Ceiling Do Not Fly Symbol 7[...]

7.4. Flying after diving In DIVE mode, the no-fly time is shown in the center window next to the airplane image. In TIME mode, the airplane image is shown in the top left corner . Flying or traveling to a higher altitude should be avoided at any time when the computer is counting down the no-fly time. The no-fly time is always at least 12 hours, or[...]

WHEN ENTERING THE PLANNODEC MODE THE DISPLA Y FIRST BRIEFL Y SHOWS TISSUE LOADING, THE REMAINING DESA TURA TION TIME BEFORE GOING INTO PLAN MODE. USE UP AND DOWN BUTTONS T O SCROLL DIFFERENT NO-DECOMPRESSION LIMITS. NO-DECOMPRESSION LIMITS LONGER THAN 99 MINUTES ARE DISPLA YED AS “–”. The Planning mode takes into account the following informa[...]

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 surface interval increments to the present surface interval by pressing the UP and DOWN buttons. ADD SURF ACE TIME IN 15 MINUTES INCREMENTS. 7.6. MEMOR Y mode The memory options include a dive logbook ([...]

THERE ARE THREE P AGES OF LOGBOOK DIVE INFORMA TION. USE SELECT BUT T ON T O SCR OLL BET WEEN L OGBOOK P AGES I, II, AND III. THE DA T A OF THE MOST RECENT DIVE IS SHOWN FIRST . Page I, main display • maximum depth • date of dive • type of dive (AIR, NITROX, GAUGE) • dive start time • dive number • oxygen percentage for Mix1 • total d[...]

NOTE The maximum depth can be reset to 0.0 m/0 ft using the PC Interface unit and the downloadable Suunto Dive Manager software. 7.7. Suunto Dive Manager (SDM) Suunto Dive Manager (SDM) is optional PC software that greatly enhances the functionality of your Suunto Cobra3. With the SDM software, you can download dive data from your dive computer to [...]

T o learn more about SuuntoSports.com’s functions and activities, visit the site, try them and, if necessary , use the site Help. The Help is available on the right side of the bar that divides the screen. 41[...]

8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER The SUUNT O dive computer is a sophisticated precision instrument. Although it is designed to withstand the rigors of scuba diving, you must treat it with the same proper care and caution as any other precision instrument. • W A TER CONT ACTS AND PUSH BUTTONS Contamination or dirt on the water [...]

The water resistance of the unit must be checked after replacing the battery or after other service operations. The check requires special equipment and training. Y ou must frequently check the transparent battery compartment cover and the display for any sign of leaks. If you find moisture inside your dive computer , there is a leak. A leak must b[...]

9. BA TTER Y REPLACEMENT NOTE It is advisable to contact an authorized Suunto representative 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 . CAUTION Defects caused by improper battery installation are not covered by the warranty . CAUTION W[...]

9. Check the condition of the O-ring; a defective O-ring may indicate sealing or other problems. Dispose the old O-ring, even if it seems to be in good condition. 10. Check that the battery compartment, battery holder and lid are clean. Clean with soft cloth if necessary . 1 1. Reinstall the battery retainer in its correct position. 12. Check that [...]

10. TECHNICAL DA T A 10.1. T echnical specifications Dimensions and weight: • Diameter: width 73 mm/2.85 in, length 165 mm/6.50 in • Thickness: 35 mm/1.40 in • Weight: 210 g/7.4 oz (without hose) Depth gauge: • T emperature compensated pressure sensor • Salt water calibrated, in fresh water the readings are about 3% smaller (calibrated in[...]

• Life expectancy at 20°C/68°F: • 0 dives/year –> 3 years • 100 dives/year –>1.5 years • 300 dives/year –>1 year The following conditions have an ef fect on the expected battery lifetime: • The length of the dives • The conditions in which the unit is operated and stored (e.g. temperature/cold conditions). Below 10°C/5[...]

Diver Attention Symbol – Advice to Extend Surface Interval Some patterns of diving cumulatively add a higher risk of DCI; for example, dives with short surface intervals, repetitive dives deeper than earlier ones, multiple ascents, and substantial multiday diving. When this is detected, in addition to adapting the decompression algorithm, the Suu[...]

No-decompression time limits (mins) for various depths (ft) for the first dive of a series Personal Mode / Altitude Mode Depth (ft) P2/A2 P2/A1 P2/A0 P1/A2 P1/A1 P1/A0 P0/A2 P0/A1 P0/A0 5 4 4 3 6 5 4 4 8 6 5 4 6 5 4 4 8 6 5 4 9 7 6 5 8 6 5 4 9 7 6 5 10 9 7 6 120 130 140 150 10.2.3. Altitude diving The atmospheric pressure is lower at high altitudes[...]

1 1. INTELLECTUAL PROPERTY 1 1.1. Copyright This user's manual is copyrighted and all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, or translated to any media without prior written consent from Suunto. 1 1.2. T rademark Suunto, Cobra3, Consumed Bottom T ime (CBT), Oxygen Limit Fraction (OLF), Suunto [...]

12. DISCLAIMERS 12.1. User ’ s responsibility This instrument is intended for recreational use only . Suunto Cobra3 must not be used for obtaining measurements that require professional or industrial precision. 12.2. CE The CE mark is used to mark conformity with the European Union EMC directive 89/336/EEC FIOH, T opeliuksenkatu 41 a A, FI-00250 [...]

13. SUUNT O LIMITED W ARRANTY FOR SUUNTO DIVING COMPUTERS AND SUUNTO DIVING COMPUTER ACCESSORIES This Limited W arranty is valid as of January 1st, 2007. Suunto Oy ("Suunto") provides this limited warranty to those who have purchased the Suunto Diving computer and/or Suunto diving computer accessories ("Product"). Suunto warrant[...]

This Limited W arranty is not enforceable if: 1. the Product has been opened, modified or repaired by anyone other than Suunto or a Suunto Authorized Service Centre; 2. the Product has been repaired using unauthorized spare parts; 3. the Product's serial number has been removed, erased, defaced, altered or made illegible in any way - and this [...]

RESUL TING FROM THE PURCHASE OR USE OF THE PRODUCT OR ARISING FROM BREACH OF THE W ARRANTY , BREACH OF CONTRACT , NEGLIGENCE, STRICT TOR T , OR ANY OTHER LEGAL OR EQUIT ABLE THEORY , EVEN IF SUUNTO KNEW OF THE LIKELIHOOD OF SUCH DAMAGES. SUUNT O SHALL NOT BE LIABLE FOR DELA Y IN RENDERING SERVICE UNDER THE LIMITED W ARRANTY , OR LOSS OF USE DURING [...]

14. DISPOSAL OF THE DEVICE Please dispose of the device in an appropriate way , treating it as electronic waste. Do not throw it in the garbage. If you wish, you may return the device to your nearest Suunto representative. 55[...]

GLOSSAR Y Air time The amount of dive time remaining, based on a calculation of cylinder pressure and ambient pressure and present air consumption. 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 RA TE Abbreviation for ascent rate. Ascent [...]

Multi level dive A single or repetitive dive that includes time spent at various depths and whose no decompression limits are therefore not determined solely by the maximum depth attained. Nitrox In sports diving, refers to any mix with a higher fraction of oxygen than standard air . NOAA United States National Oceanic and Atmospheric Administratio[...]

CUST OMER SER VICE CONT ACTS Global Help Desk +358 2 284 1 1 60 Suunto USA Phone +1 (800) 543-9124 Canada Phone +1 (800) 267-7506 Suunto website www .suunto.com COPYRIGHT This publication and its contents are proprietary to Suunto Oy . Suunto, Dive Computer , Suunto Cobra3 and their logos are registered or unregistered trademarks of Suunto Oy . All[...]

TW O YEAR WARRANTY T h i s p r o d u c t i s w a r r a n t e d t o b e f r e e o f defects in material and/or w or kmanship to th e ori gi na l o wner fo r the abo v e not ed peri od (d oe s no t in c lu de ba tt er y li f e). K ee p a co p y of the original pur chase r eceipt and mak e sur e to get this war r anty car d stamped a t the place of pu[...]

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