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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 toxicity, which is caused by 

prolonged exposure to high oxygen partial pressures. 
The most common symptoms are irritation in the lungs, 
a burning sensation in the chest, coughing and reduction 
of the vital capacity. Also called Pulmonary Oxygen 
Toxicity. See also OTU.

Summary of Contents for Mosquito

Page 1: ...SUUNTO MOSQUITO EN USER S GUIDE ...

Page 2: ... Stop Warning Safety Stop Indicator Bar Graph Mode Indicator Oxygen Limit Fraction Daily Alarm On Indicator Dive Time Dive Counter Oxygen Partial Pressure in Nitrox Mode Time Dual Time Day Month Timer Seconds Oxygen Partial Pressure Dive Alarm On Indicator Current Time Display No Decompression Time Surface Interval Time No Flying Time Total Ascent Time Ceiling Depth on Decompression Stop Safety St...

Page 3: ...TENT NOTICE This instruction manual is copyrighted and all rights are reserved It may not in whole or in part be copied photocopied reproduced translated or reduced to any media without prior written consent from SUUNTO SUUNTO MOSQUITO Consumed Bottom Time CBT Oxygen Limit Fraction OLF SUUNTO Reduced Gradient Bubble Model RGBM Continuous Decompression and their logos are all registered or unregist...

Page 4: ...evices Functional and safety requirements test methods is a European diving depth gauge standard draft The MOSQUITO is designed to comply with this draft standard ISO 9001 SUUNTO Oy s Quality Assurance System is certified by Det Norske Veritas to be according to the ISO 9001 in all SUUNTO Oy s operations Quality Certificate No 96 HEL AQ 220 SUUNTO Oy does not assume any responsibility for losses or ...

Page 5: ...injury or death 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 exposures that tend to increase the risk of decompression illness DCI Therefore Suunto strongly recommends that the device be not used for commercial or professional diving activity WARNING Only divers trai...

Page 6: ...d consult a physician regarding your fitness before diving 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 settings WARNING Dives with required decompression stops are not recommended You should ascend and begin decompression immediately when the dive comput...

Page 7: ...ng or traveling to a higher altitude within no fly time can greatly increase the risk of DCI Review the recommendations given by Diver s Alert Network DAN in chapter 3 2 3 4 Flying After Diving There can never be a flying after diving rule that is guaranteed to completely prevent decompression illness WARNING The dive computer should never be traded or shared between users while it is in operation I...

Page 8: ...o be understated and will affect decompression calculations If there is a desire to adjust the computer to provide more conservative calculations use the personal adjustment feature to affect decompression calculations or reduce the PO2 setting to affect oxygen exposure WARNING Set the correctAltitudeAdjustment Mode when diving at altitudes greater than 300 m 1000 ft the Altitude Adjustment featur...

Page 9: ...ve meters 16 ft after scuba diving depending on your diving activity Suunto also recommends you to be trained in freediving technique and physiology before conducting breath holding dives No dive computer can replace the need for proper dive training Insufficient or improper training may cause diver to commit errors that may lead to serious injury or death NOTE Changing from AIR to EAN mode is poss...

Page 10: ...H BUTTONS 17 2 3 WATER CONTACTS 19 2 4 TIME MODE TIME 20 2 4 1 Timekeeping Display 20 2 4 2 Stopwatch Timer 21 3 DIVING WITH THE MOSQUITO 23 3 1 BEFORE DIVING 24 3 1 1 Activation and Pre checks 24 3 1 2 Battery Power Indicator and Low Battery Warning 26 3 1 3 User Definable Functions and Alarms 28 3 1 3 1 Presetting Time Alarm 29 3 1 3 2 Presetting Dive Alarms 29 3 1 4 Bookmark Function 29 3 2 SCUB...

Page 11: ... 3 2 2 Diving with EAN Nitrox 45 3 2 2 1 Before Diving 45 3 2 2 2 Presetting the Displays in the EAN mode 46 3 2 2 3 Oxygen Displays 47 3 2 2 4 Oxygen Limit Fraction OLF 48 3 2 3 At the Surface 49 3 2 3 1 Surface Interval after an Air EAN Dive 49 3 2 3 2 Diver Attention Symbol 51 3 2 3 3 Dive Numbering 51 3 2 3 4 Flying After Diving 52 3 2 4 High Altitude Dives and Personal Adjustment 53 3 2 4 1 A...

Page 12: ...65 4 1 SETTING TIME DATE AND DUAL TIME TIME 65 4 2 DAILY ALARM SETTING ALM 67 4 3 DIVE MODE SETTINGS DIVE 69 4 3 1 Set Air Mode 69 4 3 2 Set EAN Mode 71 4 3 3 Set Free Mode 72 4 4 DIVE ALARM SETTINGS DIVE AL 73 4 5 ALTITUDE PERSONAL AND UNIT ADJUSTMENT SETTINGS AdJ 75 5 MEMORIES AND DATA TRANSFER MEM 77 5 1 LOGBOOK AND DIVE PROFILE MEMORY LOG 78 5 2 DIVE HISTORY MEMORY HIS 83 5 3 DATA TRANSFER AND...

Page 13: ...SPECTION 89 6 4 BATTERY REPLACEMENT 90 7 TECHNICAL DESCRIPTION 93 7 1 OPERATING PRINCIPLES 93 7 2 REDUCED GRADIENT BUBBLE MODEL SUUNTO RGBM 96 7 3 OXYGEN EXPOSURE 98 7 4 TECHNICAL SPECIFICATION 100 8 WARRANTY 105 9 GLOSSARY 107 ...

Page 14: ...ble display field This dive computer is a compact and sophisticated multipurpose dive instrument designed to give you years of trouble free usage CHOICE OF DIVING AND WATCH MODES User options for the Mosquito are selected using the push buttons Pre dive configuration and setup options include Choice of operating mode Air Nitrox Freediving Maximum depth alarm Dive time alarm Oxygen fraction Nitrox mo...

Page 15: ... types will depend on the specific dive situation To get the most from the safety benefits be sure to read the summary of the Suunto Reduced Gradient Bubble Model in chapter 7 2 1 1 SAFETY PRECAUTIONS Do not attempt to use Mosquito without reading this instruction manual in its entirety including all the warnings Make sure that you fully understand the use displays and limitations of the instrument ...

Page 16: ...ituation calmly and then move promptly to less than 18 m 60 ft STEP 2 At 18 m 60 ft slow down your ascent rate to 10 m min 33 ft min and move to a depth between 3 and 6 meters 10 to 20 ft STEP 3 Stay there as long as you assess your air supply will safely allow After reaching the surface stay out of the water for at least 24 hours 1 1 2 DIVE COMPUTER LIMITATIONS While the dive computer is based on...

Page 17: ...fects of enriched air on the body there are operational considerations to be addressed when handling altered breathing mixes Elevated concentrations of oxygen present a fire or explosion hazard Consult with the manufacturer of your equipment about its compatibility with nitrox 1 1 4 FREEDIVING Freediving and particularly freediving in combination with scuba diving may have risks that have not been ...

Page 18: ... avoid freediving and not exceed five meters 16 ft for at least two hours after scuba diving Suunto also recommends you to be trained in freediving technique and physiology before conducting breathhold dives No dive computer can replace the need for proper dive training Insufficient or improper training may cause a diver to commit errors that may lead to serious injury or death Fig 2 1 The push butt...

Page 19: ... on land or in water 2 2 PUSH BUTTONS The Mosquito is controlled with four push buttons as follows see Fig 2 1 M MODE To change from a main mode to an other main mode press the mode button To exit from a submode to a main mode press the mode button To activate the electroluminescent backlight hold down the mode button for more than two seconds or one second in the diving mode To accept the setting...

Page 20: ...how 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 decrease the value press the button To operate the stopwatch see chapter 2 4 2 To select the dive in the Logbook Mode press the button to move forward press the button to move backwards ...

Page 21: ...erefore important that the poles are kept clean The poles can be cleaned with fresh water and a soft brush e g tooth brush NOTE Water or moisture build up around the water contacts may cause the contact to activate auto matically This can happen e g when washing your hands or sweating If the water contact activates in the Time Mode an AC text will appear on display Fig 2 3 and it will be shown unt...

Page 22: ... seconds if no button is operated In other modes except in the Diving or Stopwatch Modes if no button is operated within 5 minutes the Mosquito beeps and returns to the timekeeping display automatically Either the date a the seconds of the current time b or dual time c are shown on the bottom line of the timekeeping display Press the or button to select the desired display option Next time when yo...

Page 23: ...essing the S button when the time keeping display is shown The text TIMEr at the bottom and the mode indicator TIME on the left side of the display indicate that you have entered the Stopwatch function Fig 2 6 The stopwatch of the Mosquito lets you measure elapsed time split times and the times of two runners The range of the stopwatch is 9 hours 59 minutes 59 9 seconds Fig 2 7 When the range is e...

Page 24: ...t 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 modes are disabled set to OFF see chapter 3 2 ...

Page 25: ... operate the dive computer and interpret its displays You will find that this dive computer is easy to use and read Each display shows only the data relevant to that specific diving situation Chapter 3 1 Before Diving contains general instructions for all the dive computer modes Chapter 3 2 Scuba Diving information for air and enriched air nitrox scuba diving and Chapter 3 3 Free Mode information fo...

Page 26: ... the display Fig 3 1 Next all display elements will turn on showing mostly figure 8 s and graphical elements Fig 3 2 A few seconds later the battery power indicator is shown and the backlight and the buzzer are activated Fig 3 3a Next the screen will display the mode dependent Ready display con firming that the activation is complete Fig 3 4 At this time perform your pre check making sure that the M...

Page 27: ...he instrument displays correct temperature and depth 0 0 m 0 ft the buzzer beeps you have preset desired displays on the User Definable Display Field the altitude and personal adjustment settings are correct Air and EAN modes And if set to EAN mode make sure that the oxygen percentage is adjusted according to the measured Nitrox blend in your cylinder the oxygen partial pressure limit is set correc...

Page 28: ...in chapter 7 1 Operating Principles However SUUNTO recommends to turn on the Dive Mode before diving to check the settings battery warning etc and for dive planning 3 1 2 BATTERY POWER INDICATOR AND LOW BATTERY WARNING This dive computer has a unique graphic Battery Power Indicator designed to give you an advance notice of impending need to change the battery The Battery Power Indicator can always...

Page 29: ...age 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 low temperatures even though the battery has enough capacity in warmer conditions In these cases repeat the battery check procedure ...

Page 30: ...ry symbol 3 1 3 USER DEFINABLE FUNCTIONS AND ALARMS This Mosquito has several User Definable Functions and depth and time related alarms that you can set according to your personal preference For example the Mosquito has a patented presetting system for the User Definable Display Field in the lower part of the display Fig 3 6 Low Battery Warning Battery symbol indicates that the battery is low and b...

Page 31: ...etting Mode ALM For further information see chapter 4 2 3 1 3 2 PRESETTING DIVE ALARMS The dive alarms dive time alarm and maximum depth alarm are set in the Setting Mode DIVE AL For further information see chapter 4 5 3 1 4 BOOKMARK FUNCTION It is possible to make special marks in the profile memory during a dive These Bookmarks will be shown as a Diver Attention Symbol when scrolling the profile m...

Page 32: ... and show the next deeper no decompression limits in 3 m 10 ft increments ending at 45 m 150 ft or at the maximum allowed depth in the EAN mode By pressing the button the next shallower depth will be shown again The Planning Mode can be canceled by pressing the M or the S button NOTE The Planning mode is disabled in the Air EAN Error mode see chapter 3 2 5 Higher Altitude and conservative Personal...

Page 33: ...the same repetitive dive series if the instrument was still counting down the no fly time at the beginning of the dive The surface interval must be at least 5 minutes for a dive to be considered a repetitive dive Otherwise it is considered a continuation of the same dive The dive number will not change and the dive time will continue where it left off see chapter 3 2 3 3 Fig 3 8 Dive Planning The P...

Page 34: ...e computer will remain in the Surface mode at depths less than 1 2 m 4 feet At depths greater than 1 2 m the instrument will go into the Diving mode Fig 3 10 Fig 3 11 Diving display Present depth is 19 3 m 63 ft and no decompression stop time limit is 23 minutes in A0 P1 mode Maximum depth during this dive has been 19 8 m 65 ft elapsed dive time is 16 minutes Alternative display shows temperature ...

Page 35: ...right side of the center window with a diver symbol and signs P0 P1 or P2 see Table 3 4 the available no decompression time in minutes in the center window as NO DEC TIME It is calculated based on the five factors described in chapter 7 1 Operating Principles the maximum depth during this dive in meters ft indicated as MAX or the temperature in C F in the lower left corner the elapsed dive time in ...

Page 36: ...y Stop and Mandatory Safety Stop The Safety Stops are indicated by STOP label when in the depth range 3 m 6 m 10 ft 20 ft Recommended Safety Stop Countdown which is activated when the depth of 10 m 30 ft is exceeded STOP CEILING label when in the depth range 3 m 6 m 10 ft 20 ft Mandatory Safety Stop Time display STOP label when deeper than 6 m Mandatory Safety Stop scheduled Fig 3 12 A three minut...

Page 37: ...in 33ft continuously the micro bubble build up is predicted to be more than allowed for in the decompression model The Suunto RGBM calculation model responds to this by adding a Mandatory Safety Stop to the dive The time of this Mandatory Safety Stop will depend on the severity of the ascent rate excess The STOP sign will appear in the display and when you reach the depth zone between 6 m to 3 m 2...

Page 38: ...ndatory Safety Stop ceiling depth If you correct this situation at any time during that dive there are no affects on the decompression calculations for future dives 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 Fig 3 14 Violated Mandatory Safety Stop Downward pointi...

Page 39: ... 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 exceeded continuously or that the current ascent rate is significantly above the allowed rate ...

Page 40: ...n 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 Fig 3 15 Ascent Rate Indicator Blinking SLOW and four segments are shown together ...

Page 41: ...Fig 3 17 If you exceed the no decompression limits on a dive the dive computer will provide decompression information required for ascent After this the instrument will continue to provide subsequent interval and repetitive dive information Rather than requiring you to make stops at fixed depths the dive computer gives you the option to decompress with a more gradual and natural series of mini step...

Page 42: ...llowest depth where decompression could be made plus time needed at the Mandatory Safety Stop if any plus 3 minute Recommended Safety Stop plus time needed to reach the surface after the ceiling and safety stops have been completed WARNING Your ascent time may increase if you ascend slower than 10 m min 33 ft min or make your decompression stop deeper than at the ceiling These factors will also in...

Page 43: ...est 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 However it is important to remember that the decompression will be very slow at or close to the floor The depth of the ceiling and floor will depend on ...

Page 44: ...compress 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 Fig 3 17 Decompression dive below floor Upward pointing arrow blinking ASC TIME label and an audible alarm tell you to ascend Minimum total ascent time including safety ...

Page 45: ...ars Fig 3 18 Decompression will now begin but is very slow You should therefore 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 Fig 3 19 Do not ascend above this zone During the decompression stop ASC TIME will count down towards zero When the ceiling moves upwards you can ascend to the...

Page 46: ... three minute Recommended Safety Stop has also been completed DISPLAY ABOVE THE CEILING If you ascend above the ceiling during a decompression stop a downward pointing arrow will appear and a continuous beeping starts Fig 3 20 In addition an error warning Er reminds you that you have only three minutes to correct the situation You must immediately descend to or below the ceiling If you continue to...

Page 47: ...t in longer no decompression times and shallower maximum depths The EAN mode is set using the SET DIVE function See Chapter 4 3 Dive Mode Settings DEFAULT NITROX SETTINGS In the EAN mode the default setting is for standard air 21 O2 It remains in this setting until the O2 is adjusted to any other percentage of oxygen 22 50 If a dive is started within 2 hours Mosquito retains this value until the d...

Page 48: ...NG THE DISPLAYS IN THE EAN MODE When entering the EAN mode the oxygen percentage and partial pressure are always the default displays in the lower part of the display Preset with the button in the lower left corner of the display Fig 3 22 oxygen percentage default the maximum depth or the temperature Preset with the button in the lower right corner of the display Fig 3 22 current oxygen partial pr...

Page 49: ...wn in the left side of the lower display set oxygen partial pressure limit labeled with PO2 is shown in the right side of the lower display maximum allowed depth based on the set oxygen percentage and partial pressure limit current oxygen toxicity exposure shown with an Oxygen Limit Fraction OLF bar graph along the right side of the display In the Dive mode the current oxygen toxicity exposure is ...

Page 50: ...xicity Units OTU Both fractions are scaled so that the maximum tolerated exposure for each is expressed as 100 The Oxygen Limit Fraction OLF bar graph has 7 segments each representing 12 5 from 1 to 50 or 15 from 50 to 80 The OLF bar graph displays only the value of the higher of the two calculations When the OTU value meets and exceeds the CNS value then in addition to displaying its percentage t...

Page 51: ...e time in hours and minutes separated by a colon telling the duration of the present surface interval the desaturation no flying time in hours and minutes is shown next to the airplane in the center window of the display no flying warning indicated by an airplane icon Altitude Adjustment setting Personal Adjustment setting Diver Attention symbol indicates if you should prolong your surface interval ...

Page 52: ...Alternating display showing the no flying time Or in the lower display according the selection and mode dive time of most recent dive in minutes labeled with DIVE TIME the current time labeled with TIME oxygen partial pressure labeled with PO2 if set to EAN mode maximum depth labeled with MAX the current temperature with C for Centigrade or F for Fahrenheit oxygen percentage setting labeled with O2...

Page 53: ...cted in addition to adapting the decompression algorithm the Diver Attention Symbol is shown 3 2 3 3 DIVE NUMBERING Several repetitive dives are considered to belong to the same repetitive dive series when the dive computer has not counted the no flying time to zero Within each series the dives are given individual numbers The first dive of the series will be numbered as DIVE 1 the second as DIVE 2 ...

Page 54: ...he no flying time is 48 hours Divers Alert Network DAN recommends the following on no flying times A minimum surface interval of 12 hours would be required in order to be reasonably assured a diver will remain symptom free upon ascent to altitude in a commercial jetliner altitude up to 2400 m 8000 ft Divers who plan to make daily multiple dives for several days or make dives that require decompressi...

Page 55: ... computer wait to fly conditions are satisfied 3 2 4 HIGH ALTITUDE DIVES AND PERSONAL ADJUSTMENT The dive computer can be adjusted both for diving at altitude and also to increase the conservatism of the mathematical nitrogen model 3 2 4 1 ALTITUDE ADJUSTMENT When programming the instrument for the correct altitude you need to select the correct Altitude Mode according to Table 3 3 The dive computer...

Page 56: ...the maximum altitudes are displayed for each Altitude group see Table 3 3 Chapter 4 6 describes how the Altitude Mode is adjusted Traveling to a higher elevation can temporarily cause a change in the equilibrium of dissolved nitrogen in the body It is recommended that you acclimate to the new altitude by waiting at least three hours before making a dive ...

Page 57: ...al Adjustment Mode is available if a more conservative dive plan is desired The personal factors which tend to increase the possibility of DCI include but are not limited to cold exposure water temperature less than 20 C 68 F the diver is below average physical fitness level diver fatigue diver dehydration previous history of DCI stress obesity The Personal Adjustment Mode is indicated by a diver s...

Page 58: ...ns retain the default setting P0 If conditions are more difficult or other mentioned factors which tend to increase the possibility of DCI exist select P1 or even the most conservative P2 As a result the dive computer adjusts its mathematical model according to the entered Personal Adjustment Mode giving shorter no decompression times see chapter 7 1 Table 7 1 and 7 2 TABLE 3 4 PERSONAL ADJUSTMENT ...

Page 59: ...own and the audible alarm beeps After this the dive computer will enter a permanent Error Mode The instrument will continue to function normally if you descend below the ceiling within this three minute period Once in the permanent Error Mode only the Er warning is shown in the center window The dive computer will not show times for ascent or stops However all the other displays will function as b...

Page 60: ...ng interval for the logbook profile memory The Free mode is set using the SET DIVE function See Chapter 4 3 Dive Mode Settings If set to Free mode the text FREE is shown after activation Fig 3 27 3 3 2 PRESETTING THE DISPLAYS IN THE FREE MODE The information shown in the Free mode can be preset before the dive Preset with the button in the lower left corner of the display Fig 3 28 the maximum depth...

Page 61: ...y in the lower right corner of the display the Free Dive Time in minutes and seconds is shown in the center window Fig 3 29 By pressing the S button you get a bookmark in the dive profile 3 3 4 FREEDIVING DAY HISTORY It is possible at any time in the Free Surface Mode to enter the Freediving Day History Mode simply by pressing the S button After showing the text DAY HIS and the mode indicator Fig 3...

Page 62: ... If the 5 minute limit is exceeded the user is warned by an audible alarm activated backlight upward arrow and a blinking error warning Er After 6 minutes in the Free mode the Mosquito goes into Error mode and the Er warning is permanently displayed Fig 3 32 NOTE The Free mode is limited to 5 1 minutes If the limit is exceeded the computer goes into Error mode In Error mode the computer can not be...

Page 63: ...t present depth in meters ft the surface time in minutes and seconds separated by a colon telling the duration of the present surface interval After one hour the surface time is displayed in hours and minutes NOTE Dive numbering in the Free mode is different than in the Air EAN mode It is based on repetitive dives made during one day The dive number is zeroed at midnight Fig 3 33 Surface display a...

Page 64: ...beeps and the backlight activated when the maximum allowed ascent rate 10 m min 33 ft min is exceeded SLOW and STOP warnings will appear Fig 3 15 the Mandatory Safety Stop ceiling is exceeded A downward pointing arrow will appear Fig 3 14 the decompression ceiling depth is exceeded An error warning Er and a downward pointing arrow appear You should immediately descend to or below the ceiling The i...

Page 65: ...l any button is pressed the dive time blinks for one minute if no button is pressed The preset alarm time is reached the current time is shown continuous beep series for 24 seconds or until any button is pressed the current time blinks for one minute if no button is pressed OXYGEN ALARMS IN EAN MODE Three double beeps and the backlight activated when the OLF bar graph reaches 80 The segments excee...

Page 66: ...ng PO2 value You should immediately ascend above the PO2 depth limit Fig 3 23 WARNING When the oxygen limit fraction indicates that the maximum limit is reached you must immediately ascend until the warning stops blinking Failure to take action to reduce oxygen exposure after the warning is given can rapidly increase the risk of oxygen toxicity and the risk of injury or death ...

Page 67: ...e bottom and the mode indicator on the left side of the display indicate the selected mode 4 1 SETTING TIME DATE AND DUAL TIME TIME To set the time and date 1 In the Setting Mode press S to select the Time Adjustment Mode Fig 4 2 2 Wait two seconds until the Time Adjustment Mode activates automatically The time mode indicator appears and the second digits start to blink on the display Fig 4 3 Fig ...

Page 68: ...to increase the value or to decrease it Holding the button the current selection starts to scroll 6 After you have set the time and date press the M button to save the settings and to return to the Setting Mode SET NOTE The day of the week is automatically calculated in accordance with the date The date can be set within the range of Jan 1 1990 to Dec 31 2089 Fig 4 3 The Time Adjustment Mode is ac...

Page 69: ...ctivates the symbol blinks for 1 minute and the alarm sounds for 24 seconds The alarm is given at the preset time each day Press any button to stop the audible alarm after it has activated To set the daily alarm 1 In the Setting Mode press S two 2 times to select the Daily alarm Setting Mode Fig 4 5 2 Wait two seconds until the Daily Alarm Setting Mode activates automatically The time mode indicat...

Page 70: ...any other digits except alarm status are selected blinking press to increase the value or to decrease it Holding down either button starts the scrolling of the current selection The 12 hour or 24 hour format of the alarm matches the format of the timekeeping display which is selected in the Time Adjustment Mode see chapter 4 1 When using the 12 hour format of the alarm take care to set the time co...

Page 71: ...ate the selected diving mode Air EAN Free when submerged 4 3 1 SET AIR MODE To set the Air mode 1 In the Setting Mode press S three 3 times to select the Dive Setting Mode Fig 4 7 2 Wait two seconds until the Dive Setting Mode activates automatically The enable disable status On OFF starts to blink on the display and the selected dive mode AIR EAN or FREE is displayed Fig 4 8 While the enable disa...

Page 72: ...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 Setting Mode SET Fig 4 9 Setting Oxygen Percentage and Partial Pressure EAN mode only ...

Page 73: ... to select the Dive Setting Mode Fig 4 7 2 Wait two seconds until the Dive Setting Mode activates automatically The enable disable status On OFF starts to blink on the display and the selected dive mode AIR EAN or FREE is displayed Fig 4 8 While the enable disable status On OFF is selected blinking press or to change the status 3 Press S to change the selection in the following sequence On OFF sta...

Page 74: ...2 Wait two seconds until the Dive Setting Mode activates automatically The enable disable status On OFF starts to blink on the display and the selected dive mode AIR EAN or FREE is displayed Fig 4 8 While the enable disable status On OFF is selected blinking press or to change the status 3 Press S to change the selection in the following sequence On OFF status AIR EAN FREE mode When the dive mode ...

Page 75: ...the depth alarm 1 In the Setting Mode SET press S four 4 times to select the Dive Alarm Setting Mode Fig 4 10 2 Wait two seconds until the Dive Alarm Setting Mode activates automatically The alarm status On OFF starts to blink on the display Fig 4 11 3 Press S to change the selection in the following sequence On OFF status depth alarm limit dive time alarm minutes dive time alarm seconds Fig 4 10 ...

Page 76: ...ng of the depth value The range of the depth is from 3 0 to 99 5 m 10 to 300 ft If set to 0 the alarm is disabled 6 While the dive time minutes are selected blinking press or to change the time If the time is less than five 5 minutes the dive time alarm seconds can also be set This feature can be used for freediving Fig 4 11 If the selected time is over 5 minutes no seconds are displayed Fig 4 12 7...

Page 77: ...ent to select the correct altitude mode Use the Personal Adjustment to add an extra level of conservatism In this setting mode also the desired units can be selected metric m C or imperial ft F NOTE New altitude and personal adjustment selections cannot be made until 5 minutes after a scuba dive To set the new Altitude Personal or Unit Adjustments 1 In the Setting Mode SET press S five 5 times to s...

Page 78: ...f the display press or to change units Fig 4 16 7 After you have set the desired adjustments press the M button to save the settings and to return to the Setting Mode SET WARNING Always recheck the personal and altitude adjustment to ensure that the altitude is not set for an altitude less than that of the dive site and that the personal mode corresponds to the desired conservatism Failure to ente...

Page 79: ...ving the memory mode cannot be accessed until 5 minutes after the dive Enter the Memory Mode MEM from other modes by pressing the M button The text MEM at the bottom and the mode indicator on the left side of the display indicate the selected mode Fig 5 1 If any button is not operated within 5 minutes after a function of the Memory Mode is selected the Mosquito beeps and returns to the timekeeping...

Page 80: ... S to select the Logbook Memory Mode Fig 5 2 The LOG text appears at the bottom of the display to indicate the selected mode 2 Wait two seconds until the Logbook Memory Mode activates automatically For each dive there are four pages of logbook dive information 3 Press S to switch the display between Logbook display I II III and IV The data of the most recent dive is shown first The END text is disp...

Page 81: ... Due to lower resolution the reading may differ from the maximum depth reading of the Dive History or surface display up to 0 3 m 1 ft total dive time Altitude Adjustment setting not displayed in Free mode Personal Adjustment setting not displayed in Free mode Blinking SLOW if the diver has violated the maximum ascent rate STOP label if the Mandatory Safety Stop was violated Fig 5 3 Logbook page I...

Page 82: ... Page III Fig 5 5 average depth surface interval time before the dive temperature at the maximum depth Page IV Fig 5 6 the profile of the dive automatic scrolling during which blinking diver attention symbol when the user has pressed the S button for Bookmark blinking SLOW and STOP label when registered blinking ASC TIME label when the dive became a decompression dive Fig 5 5 Logbook page III Surfa...

Page 83: ...proximately 2 hours in freediving mode After that when new dives are added the oldest dives are deleted The contents of the memory will remain even when the battery is changed assuming that the replacement has been done according to the instructions DIVE PROFILE MEMORY PRO The scrolling of the profile will start automatically when the Profile logbook page IV is entered Fig 5 6 The dive time is displ...

Page 84: ... of the same dive in the Logbook Press to stop the scrolling and to change to scrolling the next dive in the Logbook Press to stop the scrolling and to change to scrolling the previous dive in the Logbook Press M to stop the scrolling and to return to the beginning of the Logbook Press M two 2 times to exit the Logbook Memory LOG and enter the Memory Mode MEM NOTE Several repetitive dives are cons...

Page 85: ...d mode 2 Wait two seconds until the Dive History Memory Mode activates automatically The following scuba dive information will be shown on the display Fig 5 9 the maximum depth ever reached the total accumulated dive time in hours the total number of dives The scuba dive history is indicated by a D on the lower left of the display 999 dives and 999 hours of diving can be registered When these maxi...

Page 86: ...er left of the display 5 3 DATA TRANSFER AND PC INTERFACE TR PC The Mosquito can be connected to an IBM compatible personal computer PC using the optional SUUNTO PC Interface and the SUUNTO DIVE MANAGER software With the PC Interface dive data from the Mosquito can be downloaded to a PC Data can be added to complete the logbook and paper copies of your dive log and profiles can easily be printed Th...

Page 87: ...t the beginning of the dive maximum depth and end of the dive dive entry time year month day and time additional dive information e g SLOW and Mandatory Safety Stop violations Diver Attention Symbol Bookmarks Surfaced Mark Decompression Stop Mark Ceiling Error Mark dive computer serial number personal 30 character information It is also possible to manually add comments and other personal informat...

Page 88: ...ng the contact by submerging it the Dive Mode IS NOT automatically activated Data transfer stops also the stopwatch After you have finished the data transfer Press the M to exit Data Transfer Mode TR PC and enter the Memory Mode MEM If no button is operated or no data is transferred within 5 minutes the Mosquito beeps and returns to the timekeeping display automatically Using the PC software you ar...

Page 89: ... and if needed replacement of the seals buttons or display The service requires special tools and training It is advisable to contact an authorized SUUNTO dealer or distributor for this service Do not attempt to do any service that you are not sure about how to do Should moisture appear inside the Mosquito have it checked immediately by your SUUNTO dealer or distributor Should you detect scratches...

Page 90: ... too tightly You should be able to insert your finger between the strap and your wrist Use the extension strap when fastening the Mosquito on your exposure suit 6 2 MAINTENANCE If left without care for an extended period a thin film often invisible to the eye will cover the unit Much like the buildup on the glass of an aquarium this film is the result of organic contaminates found in both salt and fr...

Page 91: ... must be checked after replacement of the battery or after other service operations The check requires special equipment and training You must frequently check the display for any sign of leaks If you find moisture inside your advanced computer watch there is a leak A leak must be corrected without delay as moisture will seriously damage the unit even beyond repair SUUNTO does not take any responsi...

Page 92: ...dives before you may dive again All history and profile data as well as the altitude personal and alarm settings will remain in the dive computer memory after the battery change However the clock time and time alarm setting is lost In the NITROX Mode also the nitrox settings are reverted back to default settings 21 O2 1 4 bar PO2 When working with the battery compartment cleanliness is extremely im...

Page 93: ...oin screwdriver in order not to damage the lid 3 Remove the battery compartment lid with your fingers Do not use sharp metal objects as they might damage the O ring or the sealing surfaces 4 Carefully remove the battery from underneath the battery retainer contact The battery can be removed by inserting a screwdriver under the battery and moving the battery with your finger Be careful not to damage ...

Page 94: ... compartment lid and lubricated O ring are in good condition Be very careful not to get any dirt on the o ring or its sealing surfaces 10 Orient the lid properly and carefully press the lid onto the battery compartment with your thumb while making sure that the O ring is not at any point protruding out on the edge Make sure that the lid is pressed completely down 11 Turn the battery compartment li...

Page 95: ...no decompression limits displayed by the dive computer for the first 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 DECOMPRESSION TIME LIMITS MIN FOR VARIOUS DEPTHS M FOR THE FIRST DIVE OF A SERIES ...

Page 96: ...94 TABLE 7 2 NO DECOMPRESSION TIME LIMITS MIN FOR VARIOUS DEPTHS FT FOR THE FIRST DIVE OF A SERIES ...

Page 97: ...ore high altitude diving the instrument must be set to theAltitudeAdjustment mode to adjust the calculations for the new altitude The maximum partial pressures of nitrogen allowed by the mathematical model of the dive computer are reduced according to the lower ambient pressure As a result the allowed no decompression stop limits are considerably reduced SURFACE INTERVALS The dive computer require...

Page 98: ...advance on the classical Haldane models which do not predict free gas microbubbles It incorporates consistency with real physical laws for gas kinetics The advantage of Suunto RGBM is additional safety through its ability to adapt to a wide variety of situations Suunto RGBM addresses a number of diving circumstances outside the range of just dissolved gas models by Monitoring continuous multiday d...

Page 99: ...of decompression at the surface is adjusted according to micro bubble influence Also on repetitive dives adjustment may be applied to the maximum allowable nitrogen overpressure in each theoretical tissue group Depending on 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 I...

Page 100: ...YGEN EXPOSURE The oxygen exposure calculations are based on currently accepted exposure time limit tables and principles In addition to this the dive computer uses several methods to conservatively estimate the oxygen exposure These include for example the displayed oxygen exposure calculations are rounded to the next higher whole percentage value for recreational scuba diving the recommended uppe...

Page 101: ...ed O2 the color coded OLF bar graph for either CNS or OTU audible alarms are given and the OLF bar graph starts to blink when the 80 and 100 limits are exceeded the blinking of the bar graph stops when the PO2 is below 0 5 bar audible alarms are given and the actual PO2 value blinks when it exceeds the preset limit in dive planning the maximum depth limit according to the O2 and maximum PO2 select...

Page 102: ...mperature compensated pressure sensor Salt water calibrated in fresh water the readings are about 3 smaller calibrated complying with prEN 13319 Maximum depth of operation 80 m 262 ft complying with prEN 13319 Accuracy 1 of full scale or better from 0 to 80 m 262 ft at 20 C 68 F complying with prEN 13319 Depth display range 0 99 9 m 300 ft Resolution 0 1 m 1 ft ...

Page 103: ...2 24 h display Other displays Dive time 0 to 999 min SCUBA 0 to 5 min Free mode Surface time 0 to 99 h 59 min Dive counter 0 to 99 for repetitive dives No decompression time 0 to 199 min after 199 Ascent time 0 to 99 min after 99 Ceiling depths 3 to 99 m or 10 to 99 ft after 99 m ft Displays only in EAN mode Oxygen 21 50 Oxygen partial pressure Oxygen Limit Fraction 1 100 bar graph ...

Page 104: ... 1 ft Dive time accuracy recording interval Operating Conditions Normal altitude range 0 to 3000 m 10000 ft above sea level Operating temperature 0 C to 40 C 32 F to 104 F Storage temperature 20 C to 50 C 4 F to 122 F It is recommended that the Mosquito be stored in a dry place at room temperature FREE MODE AIR EAN MODE Recording interval 2s 20s Approx 45 min dive 4h 36h Approx 1 min freediving 2h...

Page 105: ...ing habit and dive violations The M values are tracked up to 100 hours after a dive TheEANandoxygenexposurecalculationsarebasedonrecommendations by R W Hamilton PhD and currently accepted exposure time limit tables and principles Battery One 3 V lithium battery CR 2032 Battery storage time shelf life Up to 18 months Replacement Every 18 months or more often depending on dive activity Life expectan...

Page 106: ... backlight and audible alarms The quality of the battery some lithium batteries may exhaust unexpectedly which cannot be tested in advance The time the dive computer has been stored until it gets to the customer The battery is installed into the unit at the factory NOTE Low temperature or an internal oxidation of the battery may cause the battery warning to operate even though the battery has enou...

Page 107: ...tion or unauthorized repair This warranty will automatically become void if proper preventive maintenance procedures have not been followed as outlined in the use and care instructions for this product If a claim under this or any other warranty appears to be necessary return the product freight prepaid to your Suunto dealer or distributor or qualified repair facility Include your name and address ...

Page 108: ...tes do not allow the exclusion or limitation of implied warranties of consequential damages so the above exclusions or limitations may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state This warranty does not cover any representation or warranty made by dealers or representatives beyond the provisions of this warranty No d...

Page 109: ...top dive ASC TIME Abbreviation for ascent time Ceiling On a decompression stop dive the shallowest depth to which a diver may ascend Ceiling Zone On a decompression stop dive the zone between the ceiling and the ceiling plus 1 8 m 6 ft This depth range is displayed with the two arrows pointing toward each other the hour glass icon CNS Abbreviation for Central Nervous System toxicity Central Nervou...

Page 110: ...ecompression stop dive the depth range between the floor and ceiling within which a diver must stop for some time before surfacing 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 bends or DCI Dive series A group of repetitive...

Page 111: ...or The deepest depth during a decompression stop dive at which decompression takes place Freediver A breath holding diver whose only source of oxygen are his lungs filled with surface air Half time After a change in ambient pressure the amount of time required for the partial pressure of nitrogen in a theoretical compartment to go half way from its previous value to saturation at the new ambient pr...

Page 112: ...vers become hypoxic when they hold their breath they can eventually suffer blackout if they hold their breath too long Multi level dive A 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 Na...

Page 113: ...re the Whole Body Toxicity Oxygen Limit Fraction A term used by SUUNTO for the values displayed in the Oxygen Toxicity bar graph The value is either the CNS or the OTU O2 Oxygen percentage or oxygen fraction in the breathing gas Standard air has 21 oxygen Oxygen partial pressure Limits the maximum depth to which the used Nitrox mixture can safely be used The maximum partial pressure limit for enri...

Page 114: ... remaining in a diver after one or more dives Shallow water blackout SWB An unconscious state divers experience when the brain becomes deprived of oxygen SWB frequently happens without warning causing death by subsequent drowning Static apnea blackout Unconsciousness due to gradual oxygen depletion caused by holding one s breath too long It can occur anywhere particularly at the surface and is not...

Page 115: ...dily tissues for the construction of decompression tables or calculations Whole Body Toxicity Another form of oxygen toxicity which is caused by prolonged exposure to high oxygen partial pressures The most common symptoms are irritation in the lungs a burning sensation in the chest coughing and reduction of the vital capacity Also called Pulmonary Oxygen Toxicity See also OTU ...

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Page 118: ...er COPYRIGHT This publication and its contents are proprietary to Suunto Oy Suunto Wristop Computer Suunto Mosquito Replacing Luck and their logos are registered or unregistered trademarks of Suunto Oy All rights reserved While we have taken great care to ensure that information contained in this documentation is both comprehensive and accurate no warranty of accuracy is expressed or implied Its c...

Page 119: ...larm time date dive alarms dive planning nitrox display lcd battery check scuba surface scuba diving O2 max depth temp PO2 dive time time free surface free diving lcd battery check day history FREE dive ON AIR dive ON EAN dive ON or delay delay max depth temp dive time time dive no time keeping stopwatch date seconds dual time delay mode light exit SELECT select next MODE MODES AND OPERATIONS ...

Page 120: ...Serial number Model of computer ...

Page 121: ...Suunto s dive computers and wristop computers can be registered online at www suunto com ...

Page 122: ...www suunto com Made in Finland Suunto Oy 06 2004 04 2006 ...

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