en VYPER AIR USER’S GUIDE
Tank Pressure Bar Graph Gas Mix Selection O2% | He% (Mixed Gas Mode) (Mixed Gas Mode) (Mixed Gas Mode)
1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS ................. 8 2. WARNINGS, CAUTIONS, AND NOTES .............................................. 9 3. SUUNTO USER INTERFACE ........................................................ 18 3.1. Navigating in the menus ......................................................... 18 3.2. Button symbols and functions ................................................... 20 4. GETTING STARTED .................................................................. 22 4.1.
5.6. Wireless transmission ............................................................ 5.6.1. Installing the wireless transmitter .......................................... 5.6.2. Pairing and code selection ................................................. 5.6.3. Transmitting data ............................................................ 5.7. DIVE mode settings .............................................................. 5.7.1. Setting the depth alarm ..................................................
.9.2. Mandatory Safety Stops .................................................... 5.10. Deep stops ....................................................................... 6. DIVING .................................................................................. 6.1. Diving in the AIR mode (DIVE Air) ............................................. 6.1.1. Basic dive data .............................................................. 6.1.2. Bookmark ............................................................
7.6. MEMORY mode .................................................................. 87 7.6.1. Dive logbook (MEM Logbook) ............................................. 88 7.6.2. Dive history (MEM History) ................................................. 90 7.7. Suunto DM4 with Movescount .................................................. 91 7.8. Movescount ....................................................................... 93 8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER .......... 94 9.
11.3. Patent notice ................................................................... 12. DISCLAIMERS ...................................................................... 12.1. CE ............................................................................... 12.2. EN 13319 ....................................................................... 12.3. EN 250 / FIOH ................................................................. 13. SUUNTO LIMITED WARRANTY ...............................................
1. WELCOME TO THE WORLD OF SUUNTO DIVE COMPUTERS Suunto Vyper Air wristop dive computer is designed to help you get the most out of your diving. After reading this manual and becoming familiar with the functions of your dive computer, you'll be ready to take the plunge into a whole new world of diving.
2. WARNINGS, CAUTIONS, AND NOTES Throughout this user's guide, important safety icons are displayed.
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 conditions that tend to increase the risk of decompression illness (DCI). Therefore, Suunto strongly recommends that the device not be used for any commercial or professional diving activities.
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 PO2 OF 1.4 BAR! Exposure to greater depths increases the risk of oxygen toxicity and decompression illness. WARNING DIVES WITH REQUIRED DECOMPRESSION STOPS ARE NOT RECOMMENDED.
WARNING YOU ARE ADVISED TO AVOID FLYING ANY TIME THE COMPUTER COUNTS DOWN THE NO-FLY TIME. ALWAYS ACTIVATE THE COMPUTER TO CHECK THE REMAINING NO-FLY TIME PRIOR TO FLYING! Flying or traveling to a higher altitude within the no-fly time can greatly increase the risk of DCI. Review the recommendations given by Divers Alert Network (DAN).
WARNING THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL PERCENTAGE VALUES OF OXYGEN CONCENTRATION. DO NOT ROUND UP FRACTIONAL PERCENTAGES! For example, 31.8% oxygen should be entered as 31%. Rounding up will cause nitrogen percentages to be understated and will affect decompression calculations.
WARNING SET THE CORRECT PERSONAL ADJUSTMENT MODE! Whenever it is believed that factors that tend to increase the possibility of DCI exist, it is recommended that you use this option to make the calculations more conservative. Failure to select the correct Personal Adjustment setting will result in erroneous dive and planning data. WARNING DO NOT EXCEED THE MAXIMUM ASCENT RATE! Rapid ascents increase the risk of injury.
WARNING NEVER ASCEND ABOVE THE CEILING! You must not ascend above the ceiling during your decompression. In order to avoid doing so by accident, you should stay somewhat below the ceiling. WARNING DO NOT DIVE WITH A CYLINDER OF ENRICHED AIR IF YOU HAVE NOT PERSONALLY VERIFIED ITS CONTENTS AND ENTERED THE ANALYSIS VALUE INTO YOUR DIVE COMPUTER! Failure to verify cylinder contents and enter the appropriate O2% into your dive computer will result in incorrect dive planning information.
WARNING Traveling to a higher elevation can temporarily cause a change in the equilibrium of dissolved nitrogen in the body. It is recommended that you acclimatize to the new altitude by waiting at least three hours before diving. WARNING WHEN THE OXYGEN LIMIT FRACTION INDICATES THAT THE MAXIMUM LIMIT IS REACHED, YOU MUST IMMEDIATELY TAKE ACTION TO REDUCE OXYGEN EXPOSURE.
WARNING Using the Suunto Dive Planner software is not a substitute for proper dive training. Diving with mixed gases has dangers that are not familiar to divers diving with air. To dive with trimix, triox, heliox and nitrox or all of them, divers must have specialized training for the type of diving they are doing. WARNING Always use realistic SAC rates and conservative turn pressures during dive planning.
3. SUUNTO USER INTERFACE 3.1. Navigating in the menus Suunto Vyper Air has four main operating modes - TIME mode (TIME), DIVE mode (DIVE), PLAN mode (PLAN), and MEMORY mode (MEMORY) – as well as the COMPASS submode, which can be activated from either TIME or DIVE modes. To toggle between the main modes, press the MODE button. To select a submode in DIVE, PLAN and MEMORY modes, press the UP/DOWN buttons.
3.2. Button symbols and functions The table below explains the main functions of the dive computer's buttons. The buttons and their use is explained in more detail in the relevant sections of the user's guide. Table 3.1.
Symbol Button Press Main functions UP Short Toggle between alternative displays Change submode Increase values UP Long Activate gas switching in NITROX mode DOWN Short Toggle between alternative displays Change submode Decrease values DOWN Long Enter Setting mode 21
4. GETTING STARTED To get the most out of your Suunto Vyper Air, use 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. If you are going to use the optional wireless pressure transmitter, install it and enable Air the pressure transmission in the Suunto Vyper ’s settings then test the pressure transmission.
The figure below shows how to enter the TIME Settings menu. USE UP AND DOWN BUTTONS TO TOGGLE BETWEEN ALARM, TIME, DATE, UNITS, BACKLIGHT AND TONES. 4.1.1. Setting the alarm The dive computer has a daily alarm function. When the daily alarm activates, the screen blinks and the alarm sounds for 60 seconds. Press any button to stop the alarm. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON.
4.1.2. Setting the time In the Time setting mode, you are able to set the hour, minute, and second, as well as choose between a 12 and 24 hour display. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 4.1.3. Setting the date In the Date setting mode, you are able to set the year, month, and day. The day of the week is automatically calculated in accordance with the date. In metric units the date is presented as DD/MM, and in imperial units as MM/DD. ADJUST WITH UP AND DOWN BUTTONS.
4.1.4. Setting the units In the Units setting mode, you are able to choose whether the units are displayed in either the metric or imperial system (meters/feet, Celsius/Fahrenheit, and so on). ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 4.1.5. Setting the backlight In the Backlight setting mode, you are able to turn the backlight ON or OFF and to define how long it stays on for (5, 10, 20, 30, or 60 seconds). When the backlight is turned OFF, it does not illuminate when an alarm sounds.
ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. NOTE When the tones are off, there are no audible alarms. 4.2. AC water contacts The water and data transfer contact is located on the rear of the case. When submerged, the water contact poles are connected by the conductivity of the water and the “AC” symbol appears on the display. The AC text is shown until the water contact deactivates.
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 dirt on the water contact may prevent this automatic activation. Therefore, it is important that the water contact is kept clean. The contact can be cleaned with fresh water and a soft brush, for example a tooth brush. 4.3.
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 DEPTH, AS WELL AS BEARING OR DIVE TIME OR TEMPERATURE ARE DISPLAYED. NOTE When accessed from DIVE mode, toggle between the alternative displays by pressing the UP/DOWN buttons. 4.3.1. Compass display The Suunto Vyper Air displays the compass as a graphical representation of a compass rose.
4.3.2. Locking a bearing A bearing can be locked to help you follow a selected course, and directional arrows point towards the locked bearing. The last locked bearing is stored and is available the next time the compass is activated. In the DIVE mode the locked bearings are also stored in the log. TO LOCK A BEARING, PRESS SELECT. The Suunto Vyper Air also provides help for navigating square and triangular patterns, as well as navigating a return heading.
Symbol Explanation You are 180 degrees from the locked bearing You are 120 (or 240) degrees from the locked bearing 4.3.3. Compass settings You can define the compass settings (Calibration, Declination and Timeout) in the COMPASS mode: Calibration Because of changes in the surrounding magnetic field, the Suunto Vyper Air electronic compass occasionally needs to be re-calibrated. During the calibration process, the compass adjusts itself to the surrounding magnetic field and to tilting.
First the compass is level calibrated and after a successful level calibration, the compass is tilt calibrated. The tilt calibration compensates for tilting the compass in any direction in angles of up to 45°. Strong electromagnetic fields, such as power lines, stereo speakers, and magnets can affect the compass calibration. Therefore, it is advisable to calibrate the compass if your Suunto Vyper Air has been exposed to these fields.
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 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 again. If the calibration continues to fail, contact an authorized Suunto service center.
ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. Time-out You can set the compass time-out to 1, 3, or 5 minutes. After the set time has passed from the latest button press, the dive computer returns to the TIME or DIVE mode from the COMPASS mode. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. You can exit the COMPASS mode also by long pressing the SELECT button.
5. BEFORE DIVING Do not attempt to use the dive computer without reading this user's guide 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 dive computer, contact your SUUNTO dealer before diving with the dive computer.
The Suunto Vyper Air uses traditional recommended safety stops as well as deep stops. YOU ARE ADVISED TO MAKE A DEEPSTOP AT 18 M. THE SECOND INDICATOR SHOWS THAT YOU HAVE 110 SECONDS LEFT OF YOUR DEEPSTOP. In order to optimize the response to different increased risk situations, an additional category of stop, referred to as a Mandatory Safety Stop, has been introduced. The combination of stop types depends on the user settings and the specific dive situation.
5.3. Dive computer limitations While the dive computer is based on current decompression research and technology, you must realize that the computer cannot monitor the actual physiological functions of an individual diver. All decompression schedules currently known to the authors, including the U.S. Navy Tables, are based on theoretical mathematical models, which are intended to serve as a guide to reduce the probability of decompression illness. 5.4.
Alarm type Three beeps with a three second interval Alarm reason Cylinder pressure reaches 50 bar/725 psi. The cylinder pressure display will start to blink. Cylinder pressure reaches the selected alarm pressure. Calculated remaining air time reaches zero. Three beeps with a three No-decompression dive turns into a decompression second interval and activated stop dive. An arrow pointing upwards and the blinking backlight ascent warning ASC TIME will appear.
Table 5.2. Preset alarm types Alarm type Alarm reason Continuous beep series for 24 seconds Maximum depth blinks as long as the current depth value exceeds the preset value. Preset maximum depth has been exceeded. Continuous beep series for 24 seconds or until any button is pressed. Dive time blinks for one minute. Preset dive time has been exceeded. Continuous beep series for 24 seconds or until any button is pressed. Current time blinks for one minute Preset alarm time is reached. Table 5.3.
NOTE When the backlight is turned OFF, it does not illuminate when an alarm is activated. WARNING WHEN THE OXYGEN LIMIT FRACTION INDICATES THAT THE MAXIMUM LIMIT IS REACHED, YOU MUST IMMEDIATELY TAKE ACTION TO REDUCE OXYGEN EXPOSURE. Failure to take action to reduce oxygen exposure after the warning is given can rapidly increase the risk of oxygen toxicity, injury, or death. 5.5.
When the dive computer is in the permanent Error mode, only the Er warning is shown in the center window. The dive computer does not show times for ascent or stops. However, all the other displays function as before to provide information for ascent. You must immediately ascend to a depth of 3 to 6 m/10 to 20 ft and remain at this depth until air supply limitations require you to surface. After surfacing, you should not dive for a minimum of 48 hours.
2. 3. Thread the high pressure transmitter of the Suunto Vyper Air into the HP port of your regulator with your fingers. DO NOT OVERTIGHTEN! Maximum torque is 6 Nm/4.4 lbsft or 53 lbsin. The seal is based on a static O-ring, not force! Attach the regulator to the scuba cylinder and slowly open the valve. Check for leaks by submerging the regulator first stage in water. If leaks are detected, check the condition of the O-ring and sealing surfaces. 5.6.2.
1. 2. 3. 4. Ensure that the transmitter is properly attached to the regulator’s HP port and that the regulator is properly attached to the cylinder. Ensure that the Suunto Vyper Air is turned on, and that the wireless integration is enabled in the Suunto Vyper Air settings (HP set ON, refer to Section 5.7.11. Setting the HP code). The Vyper Air should display “cd:--” in the lower left corner of the alternative display. Slowly open the cylinder valve fully and pressurize the system.
5.6.3. Transmitting data After the pairing procedure, the Suunto Vyper Air will receive cylinder pressure data from the transmitter. The pressure is displayed in either bars or psi, depending on the unit selected. Any time the Suunto Vyper Air receives an appropriate signal, the wireless transmitter indicator is displayed in the lower left corner. Table 5.4. Pressure transmission related displays Display Indication Figure Cd:-- Set Code.
A B C D E 5.7. DIVE mode settings Suunto Vyper Air has several user-definable functions, as well as depth and time-related alarms that you can set according to your personal preferences. The DIVE mode settings are dependent on the dive submode chosen (AIR, NITROX, GAUGE), so that, for example, nitrox settings are only available in the NITROX submode. The figure below shows how to enter the DIVE mode settings menu.
NOTE Some settings cannot be changed until five (5) minutes has elapsed after the dive. 5.7.1. Setting the depth alarm ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. The depth alarm is factory-set to 30 m/100 ft, but you can adjust it according to your personal preference, or switch it off altogether. The depth range can be set from 3 m to 100 m/9 ft to 328 ft. 5.7.2.
ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. NOTE With a range of 1–999 minutes, the alarm can be set to your planned bottom time, for example. 5.7.3. 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 ensure correct nitrogen and oxygen calculations. In addition, the oxygen partial pressure limit must be set.
The default oxygen percentage (O2%) setting is 21% (air) and oxygen partial pressure (PO2) setting 1.4 bar. After entering values for Mix1, you can enable/disable and set an additional gas mix–Mix2. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. NOTE ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. If MIX2 is set ON, settings for all mixes are stored until changed. If MIX2 has an oxygen content of 22% or greater, settings for all mixes are stored until changed. 5.7.4.
ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.7.5. Setting the sample rate The Sample Rate setting controls how often the depth, tank pressure (if enabled), and water temperature is stored in the memory. You 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. ACCEPT WITH SELECT BUTTON. 5.7.6.
The Deep Stop setting allows you to view deep stops. If deep stops are set OFF, only the traditional Safety Stop calculation is used. If set to ON, iterative deep stops will be prompted as well. The length of the individual deep stops can be set to 1 or 2 minutes. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.7.7. Setting the RGBM values For certain divers and diving conditions, it may be desirable to set the attenuated RGBM mode. The selection is displayed during the DIVE mode startup.
5.7.8. Setting the units In the Unit settings you are able to choose between metric (meters/Celsius/bar) and imperial (feet/Fahrenheit/psi) units. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.7.9. Setting the tank pressure alarm The tank pressure alarm can be set "ON" or "OFF" and in the range of 10–200 bar. The alarm is the secondary cylinder pressure alarm point. The alarm is activated when the tank pressure drops below the set limit. You can acknowledge this alarm.
5.7.10. Setting the tank pressure The wireless transmission can be set “ON” or “OFF” depending whether the optional wireless pressure transmitter is used or not. No cylinder pressure-related data is shown, nor data reception made, when this selection is “OFF”. ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON. 5.7.11. Setting the HP code The HP Code setting allows you to verify the selected code and to erase the stored code. It also enables re-pairing if necessary. SELECT TANK PRESSURE ON.
5.8. 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. 5.8.1. Accessing DIVE mode The Suunto Vyper Air has three diving modes: AIR mode for diving with standard air only, NITROX mode for diving with oxygen enriched mixtures, and GAUGE mode for use as a bottom timer and for freediving. The OFF mode disables the DIVE mode, and allows the TIME mode to be used underwater.
After activation, all graphical display elements are turned ON, and the backlight and the beep are activated. After this, the selected altitude and personal settings are displayed, as well as the RGBM and Deep Stop status. A few seconds later the battery power indicator is shown. At this time, perform your pre-checks, and ensure that: • the instrument operates in the correct mode and provides a complete display (AIR/NITROX/GAUGE mode) • the battery level is ok.
you have enough air for your planned dive.
If the battery symbol is displayed in the Surface mode, or if the display is faded or weak, the battery may be too low to operate the dive computer, and battery replacement is recommended. NOTE For safety reasons, the backlight cannot be activated when the low battery warning is indicated by the battery symbol. The optional wireless pressure transmitter sends out a low battery (batt) warning when its battery voltage is getting low. This is shown intermittently instead of the pressure reading.
Alt. adjustment Altitude range value A1 300–1500 m / 1000–5000 ft A2 1500–3000 m / 5000–10 000 ft NOTE Section 5.7.4. Setting the personal/altitude adjustments describes how the Altitude value is set. WARNING Traveling to a higher elevation can temporarily cause a change in the equilibrium of dissolved nitrogen in the body. It is recommended that you acclimatize to the new altitude by waiting at least three (3) hours before diving. 5.8.5.
• fatigue • dehydration • previous history of DCI • stress • obesity • patent foramen ovale (PFO) • exercise on or after dive This feature is used to adjust the computer to be more conservative, according to personal preference, by entering the suitable Personal Adjustment setting with the help of Table 5.6, Personal Adjustment settings. In ideal conditions, retain the default setting, P0.
Personal adjust- Condition ment value Desired tables P1 Some risk factors or conditions Progressively more conservative exist P2 Several risk factors or conditions exist The Suunto Vyper Air also allows experienced divers who are willing to accept a greater level of risk to adjust the RGBM model. The default setting is 100%, which gives full RGBM effect. Suunto strongly advises you to use full RGBM effect. Statistically, very experienced divers have less incidents with DCI.
5.9. 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 Vyper Air displays two different types of Safety Stops: Recommended Safety Stop and Mandatory Safety Stop. 5.9.1.
NOTE The Recommended Safety Stop, as the name implies, is recommended. If it is ignored, there is no penalty applied to the following surface intervals and dives. 5.9.2. Mandatory Safety Stops When the ascent rate exceeds 10 m/33 ft per minute continuously for more than five (5) seconds, the microbubble build-up is predicted to be more than is allowed for in the decompression model. The Suunto RGBM calculation model responds to this by adding a Mandatory Safety Stop to the dive.
You must not ascend shallower than 3 m/10 ft with the Mandatory Safety Stop warning on. If you ascend above the Mandatory Safety Stop ceiling, a downward pointing arrow will appear and a continuous beeping starts. You should immediately descend to, or below, the Mandatory Safety Stop ceiling depth. If you correct this situation at any time during the dive, there are no effects on the decompression calculations for future dives.
6. DIVING This section contains instructions on how to operate the dive computer and interpret its displays. The dive computer is easy to use and read. Each display shows only the data relevant to that specific diving mode. 6.1. Diving in the AIR mode (DIVE Air) This section contains information on diving with standard air. To activate the DIVE Air mode, please refer to Section 5.8.1. Accessing DIVE mode. DIVE HAS JUST BEGUN AND AVAILABLE NO-DECOMPRESSION TIME IS OVER 99 MINUTES SO NO VALUE IS DISPLAYED.
6.1.1. Basic dive data During a No-decompression dive, the following information is displayed: • 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 side • the Diver Attention Symbol if surface interval should be prolonged (see Table 7.1, Alarms) • the Deep Stop depth, if activated DIVE DISPLAY - PRESENT DEPTH IS 15 M, NO-DECOMPRESSION STOP TIME LIMIT IS 38 MIN. ELAPSED DIVE TIME IS 13 MIN.
DOWN BUTTON TOGGLES BETWEEN MAXIMUM DEPTH, CURRENT TIME AND TANK PRESSURE. UP BUTTON TOGGLES BETWEEN DIVE TIME AND WATER TEMPERATURE. In addition, with the optional wireless transmission enabled: • the Remaining Air-time in the left center window indicated as AIR TIME • the cylinder pressure in bar (or psi) displayed in the lower left corner • the cylinder pressure graphically displayed on the left side 6.1.2. Bookmark It is possible to record bookmarks in the profile memory during a dive.
The bookmark logs the depth, time, and water temperature, as well as compass heading (if the compass has been enabled) and tank pressure when available. To make a bookmark in the profile memory during a dive, press the SELECT button. A brief confirmation will be given. A BOOKMARK IS PLACED IN THE PROFILE MEMORY DURING A DIVE BY PRESSING THE SELECT BUTTON. 6.1.3. Tank pressure data The pressure of your scuba cylinder in bars (or psi) is shown digitally in the lower left corner of the alternative display.
The change in your air consumption is based on constant one second interval pressure measurements over 30–60 second periods. An increase in air consumption influences the remaining air time rapidly, while a drop in air consumption increases the air time slowly. In this way, an over optimistic air time estimation, caused by a temporary drop in air consumption, is avoided. The remaining air time calculation includes a 35 bar/500 psi safety reserve.
Low Air Pressure Warnings The dive computer will warn you with three (3) audible double beeps and a blinking pressure display when the cylinder pressure reaches 50 bar/700 psi. Three (3) 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 indicator The ascent rate is shown graphically along the right hand side.
WARNING DO NOT EXCEED THE MAXIMUM ASCENT RATE! Rapid ascents increase the risk of injury. You should always make the Mandatory and Recommended Safety Stops after you have exceeded the maximum recommended ascent rate. If this Mandatory Safety Stop is not completed, the decompression model will penalize your next dive(s). 6.1.5. Safety Stops A three (3) minute Recommended Safety Stop is prompted after every dive to over 10 m. 6.1.6.
• • • • • the time needed at the deep stop the time needed to ascend to the ceiling at an ascent rate of 10 m/33 ft per minute. The ceiling is the shallowest depth to which you should ascend. the time needed at the ceiling the time needed at the Mandatory Safety Stop (if any) the time needed to reach the surface after the mandatory decompression dives have been completed NOTE In addition, there may also be Mandatory Safety Stops which are not displayed in ASC TIME.
• • • The ceiling zone is the optimum decompression stop zone. It is the zone between the minimum ceiling and 1.2 m/4 ft below the minimum ceiling. The floor is the deepest depth at which the decompression stop time will not increase. Decompression will start when you pass this depth during your ascent. The decompression range is the depth range between the ceiling and floor. Within this range, decompression takes place.
NOTE It will take more time and more air to decompress below the ceiling than at the ceiling. WARNING NEVER ASCEND ABOVE THE CEILING! You must not ascend above the ceiling during your decompression. In order to avoid doing so by accident, you should stay somewhat below the ceiling. Display below the floor The blinking ASC TIME sign and an upward pointing arrow indicate that you are below the floor. You should start your ascent immediately.
UPWARD POINTING ARROW HAS DISAPPEARED AND ASC TIME LABEL HAS STOPPED BLINKING, MEANING YOU ARE IN THE DECOMPRESSION RANGE. Decompression will now begin, but is very slow. Therefore, you should continue your ascent. Display at the ceiling zone When you reach the ceiling zone, the display will show you two arrows pointing at each other (the “hour glass” icon). Below is an example of a decompression dive at the ceiling zone. TWO ARROWS POINT AT EACH OTHER “HOUR GLASS”.
During the decompression stop, ASC TIME will count down towards zero. When the ceiling moves upwards, you can ascend to the new ceiling. You may surface only after the ASC TIME and CEILING labels have disappeared, which means that the decompression stop and any Mandatory Safety Stop have been completed. You are advised, however, to stay until the STOP sign has also disappeared. This indicates that the three (3) minute Recommended Safety Stop has also been completed.
6.2. Diving in NITROX mode (DIVE Nitrox) The NITROX mode (DIVE Nitrox) is the second dive mode available in Suunto Vyper Air and is used when using oxygen-enriched gas mixtures. 6.2.1. Before diving in the 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 nitrogen and oxygen calculations. The dive computer adjusts its mathematical nitrogen and oxygen calculation models accordingly.
Default nitrox settings In the NITROX mode, the Suunto Vyper Air allows you to set 1 or 2 nitrox mixes containing 21–99% oxygen. In the NITROX mode, the default setting for Mix1 is standard air (21% O2). It remains in this setting until the O2% is adjusted to any other percentage of oxygen (22%–99%). The default setting for maximum oxygen partial pressure is 1.4 bar, however you are able to set it in the range of 0.5–1.6 bar. Mix2 is set to OFF by default. To set Mix2, refer to Section 6.2.4.
• • • • • • • • the oxygen percentage, labeled O2% the set oxygen partial pressure limit, labeled PO2 the current oxygen toxicity exposure, labeled OLF% maximum depth current time water temperature dive time tank pressure DOWN BUTTON TOGGLES BETWEEN O2, MAXIMUM DEPTH TANK PRESSURE AND CURRENT TIME. UP BUTTON TOGGLES BETWEEN PO2, OLF, DIVE TIME AND WATER TEMPERATURE.
6.2.3. Oxygen limit fraction (OLF%) If set to the NITROX mode, in addition to tracking the diver's exposure to nitrogen, the instrument tracks the exposure to oxygen. These calculations are treated as entirely separate functions. The dive computer calculates separately for Central Nervous System oxygen toxicity (CNS) and Pulmonary Oxygen toxicity, the latter measured by the addition of Oxygen Toxicity Units (OTU).
NOTE Mix number, O2% and PO2 for the mixes are shown when scrolling. If the set PO2 limit is exceeded , it will be shown with the PO2 value blinking. The dive computer does not allow you to change to a gas whose set PO2 is exceeded. In such a case, the mix is shown but cannot be selected. NOTE If no button is pressed in 15 seconds, the dive computer will go back to the dive display without changing the gas mix.
BY PRESSING THE SELECT BUTTON DURING A DIVE, A BOOKMARK IS WRITTEN IN THE PROFILE MEMORY, THE DIVE TIMER IS RESET, AND THE PREVIOUSLY-TIMED INTERVAL IS DISPLAYED BELOW. Tank pressure (if enabled) is also displayed during the dive. NOTE The GAUGE mode does not provide decompression information. NOTE There is no ascent rate monitoring in the GAUGE mode. NOTE If you dive with the GAUGE mode, it is not possible to change between the modes before the no fly time has counted down.
7. AFTER DIVING Once back at the surface, Suunto Vyper Air continues to provide post-dive safety information and alarms. Calculations to enable repetitive dive planning also help to maximize diver safety. Table 7.1. Alarms Symbol on display Indication Diver Attention Symbol - Extend Surface Interval Violated Decompression Ceiling or Too Long Bottom Time Do Not Fly Symbol 7.1. Surface interval An ascent to any depth shallower than 1.
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, shown as DIVE TIME • the current time, shown as TIME • the current temperature in °C/°F • tank pressure, if activated If set to NITROX mode, the following information will also be shown: • the oxygen percentage labeled O2% • the oxygen partial pressure labeled PO2 • the current oxygen toxicity exposure labeled OLF% 7.2.
7.3. Repetitive dive planning The Suunto Vyper Air includes a dive planner that allows you to review the no-decompression limits on a subsequent dive, taking the residual nitrogen loading of previous dives into consideration. The DIVE PLANNING mode is explained in Section 7.5.1. DIVE PLANNING mode (PLAN NoDec). 7.4. Flying after diving In the DIVE mode, the no-fly time is displayed in the center window next to the airplane image. In the TIME mode, the airplane image is shown in the top left corner.
• • Divers who plan to make daily, multiple dives for several days, or make dives that require decompression stops, should take special precautions and wait for an extended interval beyond 12 hours before a flight. Further, the Undersea and Hyperbaric Medical Society (UHMS) suggests divers using standard air cylinders and exhibiting no symptoms of decompression illness wait 24 hours after their last dive to fly in an aircraft with cabin pressure up to 2,400 m/8,000 ft.
7.5.1. DIVE PLANNING mode (PLAN NoDec) The DIVE PLANNING mode displays no-decompression times for a new dive, taking into account the effects of previous dives. When entering the PLAN nodec mode, the display first briefly shows the remaining desaturation time before going into plan mode. By pressing the UP/DOWN buttons, you can scroll the no-decompression limits in 3 m/10 ft increments ending at 45 m/150 ft. No-decompression limits longer than 99 min are displayed as “—“.
WHEN ENTERING THE PLANNODEC MODE THE DISPLAY FIRST BRIEFLY SHOWS TISSUE LOADING, THE REMAINING DESATURATION TIME BEFORE GOING INTO PLAN MODE. USE UP AND DOWN BUTTONS TO SCROLL DIFFERENT NO-DECOMPRESSION LIMITS. NO-DECOMPRESSION LIMITS LONGER THAN 99 MINUTES ARE DISPLAYED AS “–”.
Higher Altitude and conservative Personal Adjustment settings will shorten the nodecompression time limits. These limits at different Altitude and Personal Adjustment setting selections are explained in Section 5.8.4. Diving at altitude and in Section 5.8.5. Personal adjustments Dive numbering shown during dive planning Dives belong to the same repetitive dive series if the instrument was still counting down the no-fly time at the beginning of the dive.
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 SURFACE TIME IN 15 MINUTES INCREMENTS. 7.6. MEMORY mode The memory options include a dive logbook (MEM Logbook) and dive history (MEM History). The dive entry time and date is registered in the Logbook memory.
7.6.1. Dive logbook (MEM Logbook) The Suunto Vyper Air has a very sophisticated, high capacity Logbook and Profile Memory. The data is recorded in the profile memory based on the selected sample rate. The END OF LOGS text is displayed between the oldest and most recent dive.
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 IS SHOWN FIRST.
Page II • maximum depth • warnings • consumed tank pressure Page III • graphical dive profile • water temperature • tank pressure (if enabled) NOTE The memory will retain approximately the last 42 hours of dive time. After that, when new dives are added, the oldest dives are deleted. The contents of the memory will remain when the battery is changed (providing that the battery has been replaced according to the instructions).
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. When these maximum values are reached, the counters will start again from zero. NOTE The maximum depth can be reset to 0.0 m/0 ft using the PC Interface unit and the downloadable Suunto DM4 Dive Manager software. 7.7.
• • • • • • • • • • • depth profile of the dive dive time preceding surface interval time dive number dive start time (year, month, day, and time) dive computer settings oxygen percentage settings and maximum OLF (in the NITROX mode) tissue calculation data real-time water temperature tank pressure data (if enabled) additional dive information (for example, SLOW and Mandatory Safety Stop violations, Diver Attention Symbol, Bookmark, Surfaced Mark, Decompression Stop Mark, and Ceiling Error Mark) • dive com
7.8. Movescount Movescount is an online sports community that offers you a rich set of tools to manage all you sports and create engaging stories about your diving experiences. Movescount offers you new ways to get inspired and share your best dives with other community members! To connect to Movescount: 1. Go to www.movescount.com. 2. Register and create your free Movescount account. 3. Download and install the Suunto DM4 with Movescount software from the Movescount.
8. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER The SUUNTO 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. • WATER CONTACTS AND PUSH BUTTONS Contamination or dirt on the water contacts/connector or push buttons may prevent the automatic activation of the Dive Mode and cause problems during the data transfer.
• • • • • • • Should moisture appear inside the case or battery compartment, immediately have the instrument checked by your SUUNTO dealer or distributor. Should you detect scratches, cracks or other such flaws on the display that may impair its durability, immediately have it replaced by your SUUNTO dealer or distributor. Wash and rinse the unit in fresh water after every use. Protect the unit from shock, extreme heat, direct sunlight, and chemical attack.
MAINTENANCE The instrument should be soaked, thoroughly rinsed with fresh water, then dried with a soft towel after each dive. Make sure that all salt crystals and sand particles have been flushed out. Check the display and the transparent battery compartment cover for possible moisture or water. DO NOT use the dive computer if you detect any moisture or water inside. In order to limit corrosion damage, remove the battery and moisture from the battery compartment.
9. BATTERY 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 When the battery is changed, all nitrogen and oxygen uptake data is lost. Therefore, the no-fly time shown by the computer should have reached zero or you must wait for 48 hours, or preferably up to 100 hours, before you dive again.
9.2. Required tools • A flat 1.5 mm screwdriver or a special tool for spring bars (K5857). • Soft cloth for cleaning. • Needlenose pliers or small screwdriver for turning securing ring. 9.3. Replacing the battery The battery and the buzzer are located in the back of the instrument in a separate compartment. To change the battery: 1. Remove the computer from the console or boot. Wrist model: • Pull off the boot. Remove it first from the front end with the longer part of the strap.
5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Carefully remove the lid with the beeper attached to it. You can remove the lid by pressing with your finger on the outermost edge of the lid while simultaneously pulling with your nail at the opposite side. Don't use sharp metal objects as they might damage the O-ring or the sealing surfaces. Remove the O-ring and the battery retainer. Carefully remove the battery. Do not damage the electrical contacts or the sealing surface.
16. Turn the locking ring counterclockwise with your free thumb and fingers until it snaps into its locked position. 17. The dive computer should now active its timekeeping mode and show time 18:00 [6:00 PM] and date SA 01,01. Activate the instrument. Check that • all display segments work. • the low battery warning is off. • the buzzer beeps and backlight works. • all the settings are correct. Reset if necessary. 18. Install the dive computer back into the console or boot and reassemble the strap.
9.4. Wireless transmitter battery replacement NOTE It is advisable to contact an authorized Suunto representative for transmitter battery replacement. It is imperative that the change is made in a proper manner to avoid any leakage of water into the transmitter. 9.4.1. Transmitter battery kit The transmitter battery kit includes a 3.0 V CR ½ AA lithium cell battery and a lubricated O-ring. When handling the battery, do not make contact with both of the poles at the same time.
9.4.2. Required tools • A Phillips-head screwdriver • Soft cloth for cleaning 9.4.3. Replacing the transmitter battery To change the transmitter battery: 1. Remove the transmitter from the regulator HP port. 2. Unscrew and remove the four Phillips screws on the back of the transmitter. 3. Pull off the transmitter cover. 4. Carefully remove the O-ring. Be careful not to damage the sealing surfaces. 5. Carefully remove the battery. Do not touch the electrical contacts or the circuit board.
When the battery is re-installed, the transmitter sends an overpressure (“---“) signal on code 12 for 10 seconds, after which it goes to normal operation, and shuts down after five (5) minutes. 9. Check that the new lubricated O-ring is in good condition. Put it in the right position in the O-ring groove. Be very careful not to get any dirt on the O-ring or its sealing surfaces. 10. Carefully put the transmitter cover into place. Note that the cover will only fit in one position.
10. TECHNICAL DATA 10.1. Technical specifications Dimensions and weight: • Diameter: 61.0 mm/2.4 in • Thickness: 28 mm/1.1 in • Weight: 68 g/2.4 oz Transmitter: • Max. diameter: 40 mm/1.57 in • Length: 80 mm/3.15 in • Weight: 118 g/4.
Other displays • Dive time: 0 to 999 min, counting starts and stops at 1.2 m /4 ft depth • Surface time: 0 to 99 h 59 min • Dive counter: 0 to 99 for repetitive dives • No-decompression time: 0 to 99 min (- - after 99) • Ascent time: 0 to 99 min (- - after 99) • 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°C/-9 to +122°F Display range: -9 to +50°C/-9 to +122°F • Accuracy: ± 2°C/± 3.
• Storage temperature: -20°C to +50°C/ -4°F to +122°F It is recommended that the instrument be stored in a dry place at room temperature. NOTE Do not leave the dive computer in direct sunlight! Tissue calculation model: • Suunto 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).
Transmitter: • One 3V lithium battery: 1/2AA (K5546) and O-ring 2.00 mm x 2.
10.2. RGBM The Suunto Reduced Gradient Bubble Model (RGBM) is a modern algorithm for predicting both dissolved and free gas in the tissues and blood of divers. It was developed in co-operation between Suunto and Bruce R. Wienke BSc, MSc, PhD. It is based on both laboratory experiments and diving data, including data from DAN. It is a significant advance on the classical Haldane models, which do not predict free gas (microbubbles).
Depending on the circumstances, Suunto RGBM will adapt the decompression obligations by doing any or all of the following: • Reducing No-decompression Stop dive times • Adding Mandatory Safety Stops • Increasing Decompression Stop times • Advising an extended surface interval (Diver Attention symbol) 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 on
Table 10.1.
Table 10.2.
10.2.3. Altitude diving The atmospheric pressure is lower at high altitudes than at sea level. After traveling to a higher altitude, you will have additional nitrogen in your body, compared to the equilibrium situation at the original altitude. This "additional" nitrogen is released gradually over time and equilibrium is restored. It is recommended that you acclimatize to a new altitude by waiting at least three hours before making a dive.
• • • • • The selected O2% on the alternative display OLF% alternative display for either CNS% or OTU% (whichever is larger) Audible alarms are given and the OLF value starts to blink when the 80% and 100% limits are exceeded. Audible alarms are given and the actual PO2 value blinks when it exceeds the preset limit. In dive planning, the maximum depth according to the O2% and maximum PO2 selected.
11. INTELLECTUAL PROPERTY 11.1. Trademark Suunto is a registered trademark of Suunto Oy. 11.2. Copyright © Suunto Oy 08/2011. All rights reserved. 11.3. Patent notice Patents have been issued or applied for one or several features of this product.
12. DISCLAIMERS 12.1. CE The CE mark is used to mark conformity with the European Union EMC directive 89/336/EEC. 12.2. EN 13319 EN 13319 is a European diving depth gauge standard. Suunto dive computers are designed to comply with this standard. 12.3. EN 250 / FIOH The tank pressure gauge and dive instrument parts used in measuring the tank pressure meet the requirements set in the section of the European Standard EN 250 that concern tank pressure measurements. FIOH, notified body no.
13. SUUNTO LIMITED WARRANTY Suunto warrants that during the Warranty Period Suunto or a Suunto Authorized Service Center (hereinafter Service Center) will, at its sole discretion, remedy defects in materials or workmanship free of charge either by a) repairing, or b) replacing, or c) refunding, subject to the terms and conditions of this Limited Warranty. This Limited Warranty is only valid and enforceable in the country of purchase, unless local law stipulates otherwise.
serial number has been removed, altered or made illegible in any way, as determined at the sole discretion of Suunto; 4. has been exposed to chemicals including but not limited to mosquito repellents. Suunto does not warrant that the operation of the Product will be uninterrupted or error free, or that the Product will work in combination with any hardware or software provided by a third party. Access to Suunto warranty service Register your item at www.suunto.
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.
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 decompression stop dive. ASC TIME Abbreviation for ascent time. Ceiling On a decompression stop dive, the shallowest depth to which a diver may ascend based on computed nitrogen load.
Decompression illness Any of a variety of maladies resulting either directly or indirectly from the formation of nitrogen bubbles in tissues or body fluids, as a result of inadequately controlled decompression. Commonly called "the bends" or "DCI". Dive series A group of repetitive dives between which the dive computer indicates some nitrogen loading is present. When nitrogen loading reaches zero the dive computer deactivates.
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 Administration.
PFO Abbreviation for patent foramen ovale. It is a form of congenital heart defect that enables blood flow between the left and right atria via the interatrial septum. PO2 Abbreviation for oxygen partial pressure. RGBM Abbreviation for Reduced Gradient Bubble Model. Reduced Gradient Bubble Model Modern algorithm for tracking both dissolved and free gas in divers. Repetitive dive Any dive whose decompression time limits are affected by residual nitrogen absorbed during previous dives.
SUUNTO HELP DESK Global USA (toll free) Canada (toll free) +358 2 284 1160 +1-800-543-9124 +1-800-267-7506 www.suunto.com Copyright © Suunto Oy 09/2008, 10/2008, 11/2008, 08/2011. Suunto is a registered trademark of Suunto Oy. All Rights reserved.
