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Suunto Mosquito User Manual

Manual is about: Suunto Mosquito Watches: User Guide

Summary of Mosquito

  • Page 1

    Suunto mosquito en user’s guide.

  • Page 2

    Suunto mosquito o l f a s c present depth maximum depth average depth in logbook fast ascent warning (slow) ac indicator do not fly icon bar graph: - ascent rate - battery power - mode indicator diver attention symbol temperature maximum depth mode text oxygen percentage in nitrox mode week day time...

  • Page 3

    1 definition of warnings, cautions and notes throughout this manual, special references are made when deemed important. Three classifi cations are used to separate these references by their order of im por tance. Warning - is used in connection with a procedure or situation that may result in serious...

  • Page 4

    2 fioh, laajaniityntie 1, fin-01620 vantaa, finland, notifi ed body no.0430, has ec type-examined this type of personal protective equipment. This instrument must be serviced by an authorized dealer every second year or after 200 dives (whichever comes fi rst). See chapter 6. Pren 13319 pren 13319 ”di...

  • Page 5: Warning

    3 warning read this manual. Carefully read this instruction manual in its entirety paying close attention to all warnings listed below, including chapter 1.1. ”safety pre cau tions”. Make sure that you fully understand the use, displays and limitations of the dive computer because any confusion resu...

  • Page 6: Warning

    4 warning there is always a risk of decompression illness (dci) for any dive profi le even if you follow the dive plan prescribed by dive tables or a dive computer. No pro ce dure, dive computer or dive table will prevent the possibility of dci or oxygen toxicity. An individual’s physiological make u...

  • Page 7: Warning

    5 warning perform pre-checks. Always activate and check the device before diving in order to ensure that all liquid crystal display (lcd) segments are completely dis played, that the device has not run out of battery power, and that the oxygen, altitude and personal adjustments are correct. Also, ex...

  • Page 8: Warning

    6 warning do not dive with a cylinder of enriched air if you have not personally verifi ed its contents and entered the analyzed value into your dive computer. Failure to verify cylinder contents and enter the appropriate o 2 % into your dive computer will result in incorrect dive planning informatio...

  • Page 9: Warning

    7 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...

  • Page 10: Table of Contents

    8 table of contents 1. Introduction ........................................................................................ 12 1.1. Safety precautions .................................................................... 13 1.1.1. Emergency ascents ......................................................

  • Page 11

    9 3.2.1. Diving with air ............................................................................ 30 3.2.1.1. Dive planning [plan] ................................................... 30 3.2.1.2. Presetting the displays in the air mode .......................... 32 3.2.1.3. Basic dive data .........

  • Page 12

    10 3.3.1. Before diving in the free mode .................................................. 58 3.3.2. Presetting the displays in the free mode ..................................... 58 3.3.3. During the freedive ..................................................................... 59 3.3.4. Freedivin...

  • Page 13

    11 6.3. Water resistance inspection ................................................. 89 6.4. Battery replacement ................................................................ 90 7. Technical description ..................................................................... 93 7.1. Operating princ...

  • Page 14: 1.  Introduction

    12 1. Introduction congratulations on your purchase of the suunto mosquito advanced wristop dive computer. The mosquito builds on the suunto tradition of delivering feature- rich dive computers, providing different operating modes for different types of diving. Push button controls access a wide sel...

  • Page 15: 1.1.  Safety Precautions

    13 continuous decompression with suunto rgbm the suunto reduced gradient bubble model (rgbm) utilized in the mosquito predicts both dissolved and free gas in blood and tissues of divers. It is a signifi cant advance on the classic haldane models, which do not predict free gas. The advantage of suunto...

  • Page 16: 1.1.1.  Emergency Ascents

    14 diving with enriched air mixtures (nitrox) exposes the user to risks different from those associated with diving with standard air. These risks are not obvious and require training to understand and avoid. Risks include possible serious injury or death. Do not attempt to dive with any gas mix oth...

  • Page 17: 1.1.3.  Nitrox

    15 1.1.3. Nitrox diving with nitrox provides the diver with an opportunity to reduce the risk of decompression illness by reducing the nitrogen content in the breathing gas mix. However, when the gas mix is altered, the oxygen content of the mix is generally increased. This increase exposes the dive...

  • Page 18

    16 severe, there is little risk in diving after breathhold diving. However, the converse is more unknown and may increase signifi cantly the risk of dci. Therefore, freediving after scuba diving is not recommended. You should avoid freediving and not exceed fi ve meters [16 ft] for at least two hours ...

  • Page 19: 2.  Getting Acquainted

    17 2. Getting acquainted 2.1. Functions the mosquito advanced wristop computer is a multipurpose dive instrument and a sport watch featuring several watch and dive computer modes. You can select the dive computer model between the regular air dive computer (air), enriched air nitrox dive computer (e...

  • Page 20: The + Or - Button.

    18 • to select the dive planning mode in the dive surface modes. • to make a special bookmark in the profi le memory during a dive +, - • to show the date, seconds or dual time in the time keeping display press the + or - button. • in the setting mode • to increase the value press the + button • to d...

  • Page 21: 2.3. Water

    19 2.3. Water contacts the mosquito is automatically activated when submerged in water. This function is made possible by the use of water contacts. The water contacts consist of the pc-interface poles and the four push-buttons of the mosquito (fig. 2.2). When the pc-interface poles and one of the p...

  • Page 22: 2.4.  Time Mode [Time]

    20 2.4. Time mode [time] the mosquito has dual time, calendar clock, stopwatch and alarm clock functions. The calendar clock and the stopwatch are operated in the time mode. The mode is indicated by the time text and the mode indicator in the display (fig. 2.4.). The time, dual time, date and the da...

  • Page 23: 2.4.2.  Stopwatch [Timer]

    21 the display is illuminated by holding down the m button for more than two seconds. To set the time and date, refer to chapter 4.1 ”setting time, date and dual time”. When diving, the dive entry time and date is registered in the logbook memory. Remember always to check before diving that the time...

  • Page 24

    22 use the + and - buttons to operate the elapsed time measurement, split time measurement or the times of two runners as follows: diving with the mosquito or performing data transfer will stop the stopwatch. However, it is possible to use stopwatch function when diving, if the air/ean/ free -diving...

  • Page 25

    23 3. Diving with the mosquito in order to familiarize yourself with the menu based functions, suunto recommends you use your quick reference guide supplied with the mosquito together with the information in the following chapters. This section contains instructions on how to operate the dive comput...

  • Page 26: 3.1  Before Diving

    24 3.1 before diving 3.1.1. Activation and pre-checks the instrument can be activated by pressing the m button or it will automatically activate the air diving, nitrox diving or freediving computer mode according to the user selection, if submerged deeper than 0.6 m (2 ft). The chosen dive mode is i...

  • Page 27

    25 fig. 3.5. Startup iv. Free mode. Depth and dive time are zero. Pressing +/- button activates alternative display of maximum depth and current time or dive number. Fig. 3.4. Startup iii. Surface mode (air). Depth and dive time are zero. Pressing +/- button activates alternative display of maximum ...

  • Page 28: Warning

    26 after activation of the dive mode or after diving, the mosquito will automatically switch to show the time keeping display within 5 minutes to conserve the battery power, if you do not press any buttons. However, the dive computer functions will remain active until it has calculated that all resi...

  • Page 29

    27 table 3.1. Battery power indicator temperature or an internal oxidation of the battery affects the battery voltage. If the instrument is stored for a long period, the low battery warning may be displayed even though the battery has enough capacity. The low battery warning may also be displayed at...

  • Page 30: And Alarms

    28 after the battery check the low battery warning is indicated by the battery symbol (fig. 3.6.). 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 safe...

  • Page 31: 3.1.4.  Bookmark Function

    29 the displays can be preset in the surface mode. If it is not active, enter it by selecting the dive mode. The preset display will remain active until another display is selected. The preset displays will be the default displays in the diving mode. The other available display can be accessed by pr...

  • Page 32: 3.2.  Scuba Diving

    30 3.2. Scuba diving 3.2.1. Diving with air 3.2.1.1. Dive planning [plan] it is possible at any time in the air/ean surface mode to enter the planning mode, simply by pressing the s button. After showing the text plan and the mode indicator (fig. 3.8.), the display will show the no-decompression lim...

  • Page 33

    31 the planning mode also accounts for the following information from previous dives: • any calculated residual nitrogen • all dive history for the past four days • oxygen exposure (ean mode) the no-decompression times given for different depths will therefore be shorter than before your fi rst “fres...

  • Page 34: 3.2.1.2. Presetting

    32 3.2.1.2. Presetting the displays in the air mode preset with the - button in the lower left corner of the display (fig. 3.4.): • the maximum depth or • the temperature. Preset with the + button in the lower right corner of the display (fig. 3.4.): • the dive time or • the current time. 3.2.1.3. B...

  • Page 35

    33 during a no-decompression stop dive, the following information will be displayed (fig. 3.11.): • your present depth in meters [ft] • the altitude adjustment setting on the right side of the center window with a wave and mountain symbols (a0, a1, or a2) (see table 3.3.) • the personal adjustment s...

  • Page 36: 3.2.1.4. Safety Stops

    34 3.2.1.4. Safety stops safety stops are widely considered “good diving practice” and are an integral part of most dive tables. Reasons to perform a safety stop include a reduction in sub clinical dci, microbubble reduction, ascent control, and orientation before surfacing. The mosquito displays tw...

  • Page 37

    35 3.2.1.4.1. Recommended safety stop with every dive over 10 meters the instrument has a three minute countdown for the recommended safety stop, to be taken in the 3 - 6 meter [10 ft - 20 ft] range. This is shown with the stop sign and a three-minute countdown in the center window instead of the no...

  • Page 38

    36 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 (fig. 3.14.). You should immediately descend to, or below, the mandatory safety st...

  • Page 39: 3.2.1.5.

    37 3.2.1.5. Ascent rate indicator the ascent rate is shown graphically along the left side of the display as follows: table 3.2. Ascent rate indicator when the maximum allowed ascent rate is exceeded, the slow warning and the stop sign appear, indicating that the maximum ascent rate has been exceede...

  • Page 40: Warning

    38 whenever the slow warning segment and the stop sign appear (fig. 3.15.), you should immediately slow down your ascent. When you reach the depth zone between 6 m to 3 m [20 ft to 10 ft] the stop and ceiling depth labels will advise you to make a mandatory safety stop. Wait until the warning disapp...

  • Page 41: 3.2.1.6. Decompression

    39 3.2.1.6. Decompression dives when your no dec time becomes zero, your dive becomes a decompression stop dive, i.E. You must perform one or several decompression stops on your way to the surface. The no dec time on your display will be replaced by a ceiling and blinking asc time notation and an up...

  • Page 42: Warning

    40 the ascent time (asc time) is the minimum amount of time needed to reach the surface in a decompression dive. It includes: • time needed to ascend to the ceiling at an ascent rate of 10 m/min [33 ft/min] plus • time needed at the ceiling. The ceiling is the shallowest depth where decompression co...

  • Page 43

    41 ceiling, ceiling zone, floor and decompression range when in decompression, it is important that you understand the meaning of ceiling, fl oor, and decompression range (fig. 3.16.): • the ceiling is the shallowest depth where decompression could be made. At this depth, or below, you must perform a...

  • Page 44: Warning

    42 when conditions are rough, it may be diffi cult to maintain a constant depth near the surface. In this case it will be more manageable to maintain an additional distance below the ceiling, to make sure that the waves do not lift you above the ceiling. Suunto recommends that decompression takes pla...

  • Page 45

    43 display below the floor the blinking asc time and an upward pointing arrow indicate that you are below the fl oor (fig. 3.17.). You should start your ascent immediately. The ceiling depth is shown on the left and the minimum total ascent time on the right side of the center window. Display above t...

  • Page 46

    44 fig. 3.20. Decompression dive, above ceiling. Note downward pointing arrow, er warning and an audible alarm. You should immediately (within 3 minutes) descend to or below ceiling. Only after the asc time and ceiling labels have disappeared, which means that the decompression stop and any mandator...

  • Page 47: 3.2.2.1.  Before Diving

    45 3.2.2. Diving with ean (nitrox) 3.2.2.1. Before diving this dive computer can be set for diving with standard air only (air mode) or it can be set for diving with enriched air nitrox (ean mode). If set to the ean mode, the correct oxygen percentage of the gas in your cylinder must always be enter...

  • Page 48: The Ean Mode

    46 fig. 3.21. Nitrox display. Maximum depth based on set o 2 % (21%) and po 2 (1.4 bar) is 54.1 m [177 ft]. Fig. 3.22. Diving in ean mode. The o 2 % is set to 32%. Po2 is 0.9. Alternative displays are maximum depth, temperature, dive time and time. 3.2.2.2. Presetting the displays in the ean mode wh...

  • Page 49: 3.2.2.3.  Oxygen Displays

    47 fig. 3.23. Oxygen partial pressure and olf displays. There is an audible alarm and the last segment of the bar graph starts to blink as oxygen partial pressure is greater than 1.4 bar or set value, and/or the olf has reached 80% limit. When olf has reached 100%, all segments starts to blink. If t...

  • Page 50

    48 3.2.2.4. Oxygen limit fraction (olf) 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 ...

  • Page 51: 3.2.3.  At The Surface

    49 3.2.3. At the surface 3.2.3.1. Surface interval after an air/ean dive an ascent to any depth shallower than 1.2 m [4 ft] will cause the diving display to be replaced by the alternating surface displays, giving the following information (fig. 3.24. And 3.25.): • maximum depth of most recent dive i...

  • Page 52

    50 fig. 3.24. Surface display. You have surfaced from a 18 minute dive, which maximum depth was 20.0 m [66 ft]. The present depth is 0.0 m [0 ft] and surface interval time is 0. Airplane symbol indicates that you should not fl y and diver attention symbol indicates that you should prolong your surfac...

  • Page 53: 3.2.3.3.  Dive Numbering

    51 fig. 3.26. Surface mode after a violated decompression dive. Asc time symbol indicates that you have violated the ceiling for more than three minutes. The alternating display shows you that you must not dive again for at least 48 hours. 3.2.3.2. Diver attention symbol the diver attention symbol i...

  • Page 54: 3.2.3.4. Flying

    52 the dive time will begin where it left off. After 5 minutes on the surface, subsequent dives are, by defi nition, repetitive. The dive counter displayed in the planning mode will increment to the next higher number if another dive is made. 3.2.3.4. Flying after diving the no-fl ying time is shown i...

  • Page 55: Adjustment

    53 • if a diver had less than 2 hours total accumulated dive time in the last 48 hours, then a 12 hour surface interval before fl ying is recommended. • following any dive that required a decompression stop, fl ying should be delayed for at least 24 hours, and if possible, for 48 hours. • suunto recom...

  • Page 56

    54 table 3.3. Altitude adjustment ranges the entered altitude adjustment mode is indicated by mountain symbols (a0, a1 = one mountain, or a2 = two mountains). Also, the maximum altitudes are displayed for each altitude group (see table 3.3.). Chapter 4.6. Describes how the altitude mode is adjusted....

  • Page 57

    55 3.2.4.2. Personal adjustment there are adverse personal factors for dci which divers can predict in advance and input into the decompression model. Factors that may affect susceptibility to decompression illness vary between divers and also for the same diver from one day to another. The three-st...

  • Page 58

    56 this feature should be used to adjust the computer to be more conservative, according to personal preference, by entering the suitable personal adjustment mode with the help of table 3.4. In ideal conditions, retain the default setting, p0. If conditions are more diffi cult or other mentioned fact...

  • Page 59: 3.2.5. Error Conditions

    57 3.2.5. Error conditions the dive computer has warning indicators that alert the user to react to certain situations that would signifi cantly increased the risk of dci. If you do not respond to its warnings, the dive computer will enter an error mode, indicating that the risk of dci has greatly in...

  • Page 60: 3.3.  Freediving

    58 fig. 3.27. Free mode. 3.3. Freediving 3.3.1. Before diving in the free mode if set to free mode, the dive computer can be used for freediving or snorkeling. In the freediving mode the mosquito provides depth, time and profi le information and an accurate 2 second sampling interval for the logbook ...

  • Page 61

    59 preset with the + button in the lower right corner of the display (fig. 3.28.) • the dive time, • the current time or • the dive number. 3.3.3. During the freedive in the freediving mode the present depth is always shown. Maximum depth, temperature, dive time, current time and dive number are sho...

  • Page 62: M Or The S Button.

    60 • the total amount of free dives, • the longest free dive in minutes and seconds in the center window and • the deepest free dive made during that day. The day his mode can be canceled by pressing the m or the s button. 3.3.5. Exceeding the freediving time limit to prevent the possibility of acci...

  • Page 63: Freedive

    61 3.3.6. Surface interval after a freedive an ascent to any depth shallower than 1.2 m [4 ft] will cause the diving display to be replaced by the surface display, giving the following information (fig. 3.33.): • maximum depth of most recent dive in meters [ft] • present depth in meters [ft] • the s...

  • Page 64

    62 3.4. Audible and visual alarms the dive computer features audible and visual alarms to advise when important limits are approached or to acknowledge preset alarms. A short single beep occurs when: • the dive computer automatically returns to the time mode. Three single beeps with a two second int...

  • Page 65

    63 you are able to preset alarms before the actual dive. The user programmable alarms can be set for maximum depth, dive time and daily time. The alarms activate when: • the preset maximum depth is reached • continuous beep series for 24 seconds or until any button is pressed. • the maximum depth bl...

  • Page 66: Warning

    64 continuous beeps for 3 minutes and the backlight activated occur when: • the set oxygen partial pressure limit is exceeded. The maximum depth is replaced with the current blinking po 2 value. You should immediately ascend above the po 2 depth limit (fig. 3.23.). Warning when the oxygen limit frac...

  • Page 67: 4.  Setting Mode [Set]

    65 4. Setting mode [set] the time, date, dual time, daily alarm, scuba and free dive selections and settings, dive time and depth alarms and the altitude, personal and unit adjustments are set in the setting mode (fig. 4.1.). Enter the setting mode from other modes by pressing the m button. The text...

  • Page 68: Note:

    66 3. Press s to change the selection in the following sequence: -> seconds -> hours -> minutes -> 12/24 hour format -> year -> month -> day -> dual (home) time hours -> minutes 4. While the second digits are selected (blinking), press - to reset the seconds to ”00” or press + to increase the value....

  • Page 69: Note:

    67 note: • while the selection is blinking and no button is operated within 10 minutes, the blinking stops and the mosquito beeps and returns automatically to the timekeeping display. • the display is illuminated by holding down the m button for more than two seconds. 4.2. Daily alarm setting [alm] ...

  • Page 70

    68 3. Press s to change the selection in the following sequence: ->on/off status -> hours -> minutes 4. While the alarm status [on/off] is selected (blinking) press + or - to change the status. When the alarm status is on, the daily alarm indicator ( -symbol) in the bottom right corner of the displa...

  • Page 71: 4.3.1.  Set Air Mode

    69 4.3. Dive mode settings [dive] in this mode you can select the type of dive mode to be used (air, nitrox or free) or turn the dive modes off. If the dive modes are turned off, the dive computer functions are disabled, thus turning the mosquito into a mere water resistant sportswatch. Note: if the...

  • Page 72

    70 3. Press s to change the selection in the following sequence: ->on/off status -> air/ean/free mode when the air/ean/free dive mode is selected (blinking) press + or - to change the mode to air. 4. After you have set the air mode, press the m button to save the settings and to return to the settin...

  • Page 73: 4.3.2.  Set Ean Mode

    71 4.3.2. Set ean mode if set to the ean (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. Also in ean mode, the oxygen partial pressure limit must be set. When in the ean setting mode...

  • Page 74: 4.3.3.  Set Free Mode

    72 when oxygen percentage (o 2 %) or oxygen partial pressure (po 2 ) are selected (blinking) press + or - to change the setting (fig. 4.9.). 5. After you have set the ean settings, press the m button to save the settings and to return to the setting mode [set] 4.3.3. Set free mode to set the free mo...

  • Page 75: 4.4.  Dive Alarm Settings

    73 4.4. Dive alarm settings [dive al] you can set one depth alarm in the mosquito. When the depth alarm activates, the -symbol blinks as long as the present depth value exceeds the adjusted value and the alarm sounds for 24 seconds. Press any button to stop the audible alarm, after it has activated....

  • Page 76

    74 4. While the alarm status [on/off] is selected (blinking), press + or - to change the status. When the alarm status is on, the depth alarm indicator ( -symbol) in the bottom right corner of the display indicates that the alarm is on. 5. While the depth digits are selected (blinking), press + to i...

  • Page 77: Unit Adjustment Settings

    75 fig. 4.13. Adjustment mode. Fig. 4.14. Setting altitude adjustment. 4.5. Altitude, personal and unit adjustment settings [adj] the current altitude and personal adjustment modes are shown when diving as well as at the surface. If the mode does not match the altitude or conditions (see chapter 3.2...

  • Page 78: Warning

    76 3. Press s to change the selection in the following sequence. ->altitude adjustment -> personal adjustment -> units 4. While the altitude digits are selected (blinking), press + or - to change the altitude mode (fig. 4.16.). 5. While the personal adjustment digits are selected (blinking), press +...

  • Page 79: 5.  Memories And Data

    77 5. Memories and data transfer [mem] the memory functions for the mosquito include the combined logbook and dive profi le memory, dive history memories for scuba and free dives and the data transfer and pc-interface functions. Note: after scuba diving, the memory mode cannot be accessed until 5 min...

  • Page 80: Memory [Log]

    78 5.1. Logbook and dive profile memory [log] this instrument has a sophisticated high capacity logbook and profi le memory. The data is recorded to the profi le memory based on the sampling rate. The sampling rate in air/ean mode is 20 s, and in free mode 2 s. Dives shorter than the recording interva...

  • Page 81: Page Ii (Fig. 5.4.)

    79 the following information will be shown on four pages: page i, main display (fig. 5.3.) • dive number in the dive series, air/ean dives are indicated by a d number and freedives by a f number • dive entry time and date. Page ii (fig. 5.4.) • maximum depth (note: due to lower resolution, the readi...

  • Page 82: Page Iii (Fig. 5.5.)

    80 • asc time label, if the dive was a decompression stop dive • diver attention symbol, if the dive was started while symbol was displayed • downward pointing arrow, if the ceiling was violated • oxygen percentage (only for nitrox dives) • maximum olf during the dive (only for nitrox dives). Page i...

  • Page 83

    81 the data of the most recent dive is shown fi rst. Press - to call the information from the previous dive. Press the - button consecutively to move backward through the dives. Press + to move forward through the dives. It is possible to scroll trough the dives on all four pages. The end text is dis...

  • Page 84

    82 after the last depth fi gure of the selected profi le, the mosquito automatically returns to display i of the same dive in the logbook. If desired, the profi le of the same dive can be recalled again following the above procedure. The scrolling of the profi le can be stopped by pressing any button. •...

  • Page 85

    83 5.2. Dive history memory [his] the dive history is a summary of all the scuba and free dives recorded by the mosquito. Scuba and freediving histories are kept separate. To enter the dive history memory mode: 1. In the memory mode [mem], press s two (2) times to select the dive history memory mode...

  • Page 86: Interface [Tr-Pc]

    84 note: the maximum depth can be reset to 0.0 m [0 ft] using the optional suunto dive manager pc- interface. 3. To enter the freedive history memory mode press the - or + buttons once when the history memory is selected. The following free dive information will be shown on the display (fig. 5.10.):...

  • Page 87

    85 the data transfer is carried out using the water contact of the mosquito. The following data is transferred to the pc: • depth profi le of the dive • dive time • preceding surface interval time • dive number • type of dive (scuba/free) • altitude and personal adjustment settings • oxygen percentag...

  • Page 88

    86 to enter the data transfer mode: 1. In the memory mode [mem], press s three (3) times to select the data transfer mode the tr-pc text appears at the bottom of the display to indicate the selected mode (fig. 5.11.). 2. Wait two seconds until the data transfer mode activates automatically. Note: wh...

  • Page 89: 6.  Care And Maintenance

    87 6. Care and maintenance this suunto dive computer is a sophisticated precision instrument. Though designed to withstand the rigors of scuba diving, you must treat it with proper care and caution as any other precision instrument. 6.1. Care of your mosquito • never try to open the case of the mosq...

  • Page 90: 6.2.  Maintenance

    88 • protect the unit from shocks, extreme heat or direct sunlight and chemical attack. The mosquito cannot withstand the impact of heavy objects like scuba cylinders, nor chemicals like gasoline, cleaning solvents, aerosol sprays, adhesive agents, paint, acetone, alcohol etc. Chemical reactions wit...

  • Page 91

    89 crystals and sand particles have been fl ushed out. Check the display for possible moisture or water. Do not use the mosquito if you detect any moisture or water inside. Caution! • do not use compressed air to blow water off the unit • do not use solvents or other cleaning fl uids that might cause ...

  • Page 92: 6.4.  Battery Replacement

    90 6.4. Battery replacement note: it is advisable to contact an authorized suunto dealer for battery replacement. It is imperative that the change is made in a proper manner to avoid any leakage of water into the battery compartment or computer. Caution! • defects caused by improper battery installa...

  • Page 93

    91 battery replacement the battery is located in a separate battery com- partment on the back side of the instrument (fig. 6.1.). To change the battery, follow the procedure below: 1. Thoroughly rinse and dry the computer. 2. Open the battery compartment lid by carefully but fi rmly turning it counte...

  • Page 94

    92 5. Remove the old o-ring from the battery compartment lid. 6. Check the condition of the old o-ring; a defective o-ring may indicate sealing or other problems. Dispose the old o-ring and battery compartment lid, even if they seem to be in good condition. 7. Check that the battery compartment surf...

  • Page 95: 7.  Technical Description

    93 7. Technical description 7.1. Operating principles no-decompression limits the no-decompression limits displayed by the dive computer for the fi rst dive to a single depth (see table 7.1. And 7.2.), are slightly more conservative than those permitted by the u.S. Navy tables. Table 7.1. No-decompre...

  • Page 96

    94 table 7.2. No-decompression time limits (min) for various depths [ft] for the first dive of a series.

  • Page 97

    95 altitude diving the atmospheric pressure is lower at high altitudes than at sea level. After traveling to a higher altitude, the diver will have additional nitrogen in his body, compared to the equilibrium situation at the original altitude. This “additional” nitrogen is released gradually in tim...

  • Page 98: Suunto Rgbm

    96 7.2. Reduced gradient bubble model, suunto 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 a co-operation between suunto and bruce r. Wienke bsc, msc. Phd. It is based on ...

  • Page 99

    97 suunto rgbm adaptive decompression the suunto rgbm algorithm adapts its predictions of both the effects of micro-bubble build-up and adverse dive profi les in the current dive series. It will also change these calculations according to the personal adjustment you select. The pattern and speed of d...

  • Page 100: 7.3.  Oxygen Exposure

    98 diver attention symbol – advice to extend surface interval some patterns of diving cumulatively add a higher risk of dci, e.G. Dives with short surface intervals, repetitive dives deeper than earlier ones, multiple ascents, substantial multiday diving. When this is detected in addition to adaptin...

  • Page 101

    99 the oxygen related data and warnings are provided at all appropriate phases of a dive. The following information will be shown before and during a dive, when the computer is set in ean mode: • the selected o 2 % • the color-coded olf% bar graph for either cns% or otu% • audible alarms are given a...

  • Page 102

    100 7.4. Technical specification dimensions and weight: • width: 48.9 mm [1.92 in] • height: 54.8 mm [2.16 in] • thickness: 15.8 mm [0.62 in] • weight: 50.3 g [1.78 oz] depth gauge: • temperature compensated pressure sensor. • salt water calibrated, in fresh water the readings are about 3% smaller (...

  • Page 103

    101 temperature display: • resolution: 1ºc [1.5ºf] • display range: - 20 ... +50ºc [- 4 ... +122ºf] • accuracy: ± 2ºc [± 3.6ºf] within 20 minutes of temperature change calendar clock: • accuracy: ± 15 s /month (at 20ºc [68ºf]) • 12/24 h display other displays: • dive time: 0 to 999 min (scuba), 0 to...

  • Page 104: Free Mode

    102 logbook/dive profi le memory: • recording interval in air/ean modes: 20 seconds, records the maximum depth of each interval. • recording interval in free mode: 2 seconds • memory capacity: • depth accuracy: 0.3 m [1 ft]. • dive time accuracy: recording interval operating conditions • normal altit...

  • Page 105

    103 tissue calculation model • suunto rgbm algorithm (developed by suunto and bruce r. Wienke, bs, ms and 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 (varia...

  • Page 106

    104 the following conditions have an affect on the expected battery lifetime: • the length and type of the dives. • the condition in which the unit is operated and stored (e.G. Temperature/ cold conditions). Below 10°c [50°f] the expected battery lifetime may be 50-75% of that at 20°c [68°f]. • the ...

  • Page 107: 8.  Warranty

    105 8. Warranty note: the warranty arrangements vary in different countries. The dive computer packaging contains information regarding the warranty benefi ts and requirements applicable to your purchase. This suunto dive computer is warranted against defects in workmanship and materials for a period...

  • Page 108

    106 all implied warranties, including but not limited to the implied warranties of merchantability and fi tness for a particular purpose, are limited from date of purchase and in scope to the warranties expressed herein. Suunto shall not be liable for loss of use of the product or other incidental or...

  • Page 109: 9.  Glossary

    107 9. Glossary altitude dive a dive made at an elevation greater than 300 m [1000 ft] above sea level. Apnea absence of breathing. Freedivers are apneic throughout the duration of their dive. Ascent rate the speed at which the diver ascends toward the surface. Asc rate abbreviation for ascent rate....

  • Page 110

    108 cns% central nervous system toxicity limit fraction. See note “oxygen limit fraction”. Compartment see “tissue group”. Dan divers alert network. Dci abbreviation for decompression illness. Decompression time spent at a decompression stop or range before surfacing, to allow absorbed nitrogen to e...

  • Page 111

    109 dive time elapsed time between leaving the surface to descend, and returning to the surface at the end of a dive. Ead abbreviation for equivalent air depth. Ean abbreviation for enriched air nitrox. Enriched air nitrox also called nitrox or enriched air = eanx. Air that has some oxygen added. St...

  • Page 112

    110 hyperventilation an increase in rate and/or volume of breathing. Carbon dioxide blood levels decrease with little corresponding increase in oxygen blood levels. If the diver engages in excessive hyperventilation, he may diminish his desire to breathe, long enough to become unconscious after a lo...

  • Page 113

    111 no-decompression dive any dive which permits a direct, uninterrupted ascent to the surface at any time. No dec time abbreviation for no-decompression time limit. Oea = ean = eanx abbreviation for oxygen enriched air nitrox. Olf abbreviation for oxygen limit fraction. Otu abbreviation for oxygen ...

  • Page 114

    112 po 2 abbreviation for oxygen partial pressure. Srgbm abbreviation for suunto reduced gradient bubble model. Suunto 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 ...

  • Page 115

    113 surface interval time elapsed time between surfacing from a dive and beginning a descent for the subsequent repetitive dive. Tissue group theoretical concept used to model bodily tissues for the construction of decompression tables or calculations. Whole-body toxicity another form of oxygen toxi...

  • Page 116

    114.

  • Page 117

    115.

  • Page 118: Disposal Of The Device

    116 printed in finland 04.2006 / esa print oy / 160601 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 dealer. Copyright this publication and its ...

  • Page 119: Select

    O suunto mosquito e scuba dive history data transfer p2 p3 p1 p2 free dive history p3 p2 p3 logbook delay p1 p1 end end altitude & personal & unit adjustment free dive & scuba dive & oxygen settings daily alarm time&date dive alarms / / dive planning nitrox display lcd & battery check scuba surface ...

  • Page 120

    O serial number : model of computer : s.

  • Page 121

    Suunto’ s div e computer s and wristop computer s can be r e gister ed online a t www .Suunto .Com.

  • Page 122

    Www.Suunto.Com made in finland © suunto oy 06 / 2004, 04 / 2006.