suunto mosquito ug en

8/10/2019 Suunto Mosquito UG En

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SUUNTO

MOSQUITO

EN

USERS GUIDE


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SUUNTO MOSQUITO

OLF

ASC

Present DepthMaximum DepthAverage Depth in LogbookFast Ascent Warning(SLOW)AC Indicator

Do Not Fly Icon

Bar Graph:- Ascent Rate- Battery Power- Mode Indicator

Diver Attention Symbol

TemperatureMaximum DepthMode TextOxygen Percentage in NitroxModeWeek DayTimer Hours and Minutes

Low Battery Warning

Altitude AdjustmentMode

Personal AdjustmentMode

Safety Stop WarningSafety Stop Indicator

Bar Graph:- Mode Indicator- Oxygen Limit Fraction

Daily AlarmOn Indicator

Dive TimeDive CounterOxygen Partial Pressurein Nitrox ModeTimeDual TimeDay, MonthTimer SecondsOxygen Partial Pressure

Dive AlarmOn Indicator

Current Time DisplayNo-Decompression TimeSurface Interval TimeNo Flying TimeTotal Ascent TimeCeiling Depth on Decompression StopSafety Stop Time

Mandatory Safety Stop Depth and Time

AM/PM Indicator

Arrows:- Decompression Stop at the Ceiling Depth- Mandatory Safety Stop Zone- Ascent Recommended- Must Descend

QUICK REFERENCE QUIDE


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1

DEFINITION OF WARNINGS, CAUTIONS AND NOTES

Throughout this manual, special references are made when deemed important.

Three classifications are used to separate these references by their order of

importance.

WARNING - is used in connection with a procedure or situation that may

result in serious injury or death.

CAUTION - is used in connection with a procedure or situation that will

result in damage to the product.

NOTE - is used to emphasize important information.

COPYRIGHT, TRADEMARK AND PATENT 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 unregistered trademarks of

SUUNTO. All rights are reserved.Patents have been issued or applied for one or several features of this product.

CE

The CE mark is used to mark conformity with the European Union EMC directive

89/336/EEC. The SUUNTO dive instruments fulfill all the required EU directives.


4/1222

FIOH, Laajaniityntie 1, FIN-01620 Vantaa, Finland, notified 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

after200 dives(whichever comes first). See chapter 6.

PrEN 13319

PrEN 13319 Diving accessories Depth gauges and combined depth and time

measuring devices 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 Oys Quality Assurance System is certified by Det Norske Veritas to

be according to the ISO 9001 in all SUUNTO Oys operations (Quality Certificate

No. 96-HEL-AQ-220).

SUUNTO Oy does not assume any responsibility for losses or claims by third

parties, which may arise through the use of this device.

Due to continuous product development, the MOSQUITO is subject to changewithout notice.


5/1223

WARNING

Read this manual. Carefully read this instruction manual in its entiretypaying close attention to all warnings listed below, including chapter 1.1.

Safety Precautions. Make sure that you fully understand the use, displaysand limitations of the dive computer because any confusion resulting fromneglecting to follow this instruction manual or from improper use of thisdevice may cause a diver to commit errors that may lead to serious injuryor death.

WARNINGNot for professional use. Suunto dive computers are intended for recreationaluse only. The demands of commercial or professional diving may expose thediver to depths and exposures that tend to increase the risk of decompressionillness (DCI). Therefore, Suunto strongly recommends that the device be notused for commercial or professional diving activity.

WARNING

Only divers trained in the proper use of scuba diving equipment should use adive computer. 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.


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WARNING

Perform pre-checks. Always activate and check the device before diving inorder to ensure that all Liquid Crystal Display (LCD) segments are completely

displayed, that the device has not run out of battery power, and that the oxygen,altitude and personal adjustments are correct. Also, exit the Data Transfermode before diving, as the computer does not automatically revert to Divemode from Data Transfer mode.

WARNING

You are advised not to fly any time the computer counts down the no-flyingtime. Always activate the computer to check the remaining no-fly timeprior to flying. The computer goes into the stand-by display automatically 5minutes after surfacing. Flying or traveling to a higher altitude within no-flytime can greatly increase the risk of DCI. Review the recommendations givenby Divers 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 completelyprevent decompression illness!

WARNING

The dive computer should never be traded or shared between users while it is in

operation. Its information will not apply to someone who has not been wearingit throughout a dive or sequence of repetitive dives. Its dive profiles must matchthat of the user. If it is left on the surface during any dive, it will give inaccurateinformation for subsequent dives. No dive computer can take into account divesmade without the computer. Thus any diving activity up to four days prior to initialuse of the computer may cause misleading information and must be avoided.


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WARNING

Do not dive with a cylinder of enriched air if you have not personally verifiedits contents and entered the analyzed value into your dive computer. Failure to

verify cylinder contents and enter the appropriate O2% into your dive computerwill result in incorrect dive planning information.

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 percentagesto be understated and will affect decompression calculations. If there is adesire to adjust the computer to provide more conservative calculations, usethe personal adjustment feature to affect decompression calculations or reducethe PO

2setting to affect oxygen exposure.

WARNING

Set the correct Altitude Adjustment Mode when diving at altitudes greater than300 m [1000 ft] the Altitude Adjustment feature must be correctly selectedin order for the computer to calculate the decompression status. The divecomputer is not intended for use at altitudes greater than 3000 m [10000 ft].

Failure to select the correct Altitude Adjustment setting or diving above themaximum altitude limit will result in erroneous dive and planning data.


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WARNING

Set the correct Personal Adjustment Mode. Whenever it is believed thatfactors that tend to increase the possibility of DCI exist, it is recommended

that you use this option to make the calculations more conservative. Failureto select the correct Personal Adjustment Setting will result in erroneous diveand planning data.

WARNING

Freediving after scuba diving is not recommended. It is recommended to avoidfreediving for at least two hours and not to exceed five meters [16 ft] after scubadiving depending on your diving activity.

Suunto also recommends you to be trained in freediving technique andphysiology before conducting breath holding dives. No dive computer canreplace 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 possible at any time. Changing from EAN

to AIR mode however requires you to wait until the no-flying time has counteddown. FREE mode is accessible at any time.

FREE mode is limited to 5 minutes, after which a warning is given. After 5+1

minutes the computer goes into error mode.


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TABLE OF CONTENTS

1. INTRODUCTION ........................................................................................12

1.1. SAFETY PRECAUTIONS .................................................................... 13

1.1.1. Emergency Ascents ...................................................................... 14

1.1.2. Dive Computer Limitations ......................................................... 15

1.1.3. Nitrox .......................................................................................... 15

1.1.4. Freediving .................................................................................... 15

2. GETTING ACQUAINTED ........................................................................... 17

2.1. FUNCTIONS ......................................................................................... 172.2. PUSH BUTTONS .................................................................................. 17

2.3. WATER CONTACTS.............................................................................19

2.4. TIME MODE [TIME]............................................................................20

2.4.1. Timekeeping Display ................................................................... 20

2.4.2. Stopwatch [Timer] ....................................................................... 213. 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. SCUBA DIVING ................................................................................... 30


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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 .............................................................. 32

3.2.1.4. Safety stops .................................................................... 34

3.2.1.4.1. Recommended Safety Stop ..................................35

3.2.1.4.2. Mandatory Safety Stop ........................................35

3.2.1.5. Ascent Rate Indicator ...................................................... 37

3.2.1.6. Decompression dives ...................................................... 39

3.2.2. Diving with EAN (Nitrox) ........................................................... 453.2.2.1. 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 .............................................................................. 493.2.3.1. 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. Altitude Adjustment ........................................................ 53

3.2.4.2. Personal Adjustment .......................................................55

3.2.5. Error Conditions ......................................................................... 57

3.3. FREEDIVING ....................................................................................... 58


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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. Freediving Day History................................................................ 59

3.3.5. Exceeding the Freediving Time Limit ......................................... 60

3.3.6. Surface Interval After a Freedive .................................................61

3.4. AUDIBLE AND VISUAL ALARMS .................................................... 62

4. SETTING MODE [SET] .............................................................................. 65

4.1. SETTING TIME, DATE AND DUAL TIME [TIME ] .......................... 65

4.2. DAILY ALARM SETTING [ALM] ......................................................674.3. 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] ............................................734.5. 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 PC-INTERFACE [TR-PC] ........................... 84

6. CARE AND MAINTENANCE .................................................................... 87

6.1. CARE OF YOUR MOSQUITO ............................................................. 87

6.2. MAINTENANCE .................................................................................. 88


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6.3. WATER RESISTANCE INSPECTION ................................................. 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


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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 ofdiving. Push button controls access a wide selection of choices. The display is

optimized for the dive mode chosen and it incorporates a patented user definable

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 mode only)

Oxygen partial pressure alarm limit (Nitrox mode only)

Altitude adjustment

Personal adjustment

Choice of unit Metric / Imperial

Clock, calendar, daily alarm, stopwatch, dual time

User definable display fields


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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 other than standard air without first

receiving certified training in this specialty.

1.1.1. EMERGENCY ASCENTSIn the unlikely event that Mosquito malfunctions during a dive, follow the

emergency procedures provided by your certified dive training agency or,alternatively,

STEP 1: Assess the situation 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 LIMITATIONSWhile 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.


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severe, there is little risk in diving after breathhold diving. However, the converse

is more unknown and may increase significantly the risk of DCI. Therefore,

FREEDIVING AFTER SCUBA DIVING IS NOT RECOMMENDED. You

should 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 buttons of the Mosquito.


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To select the dive planning mode in the dive surface modes.

To make a special bookmark in the profile memory during a dive

+, -

To show the date, seconds or dual time in the time keeping display pressthe +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.


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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 consistof the PC-interface poles and the four push-buttons

of the Mosquito (Fig. 2.2). When the PC-interface

poles and one of the push-buttons are connected by

the conductivity of the water the Surface or Diving

Mode is automatically activated.

Contamination or dirt on the PC-interface poles may

prevent this automatic operation. It is, therefore,

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 until the water contact

deactivates, or the Mosquito enters the Dive Mode

automatically. To save the battery power, you should

deactivate the water contact by cleaning it and/or dry-

ing it with a soft towel.

Fig. 2.3. Active water contact is

indicated by the text AC.

Fig. 2.2. The water contact and

depth sensor.


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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 isindicated by the TIME text and the mode indicator in the

display (Fig. 2.4.). The time, dual time, date and the daily

alarm are set in the Setting Mode (see chapter 4).

2.4.1. TIMEKEEPING DISPLAY

The timekeeping display is the primary display of the

Mosquito (Fig. 2.5.). When the Time Mode is entered

from other modes, the timekeeping display activates

within two 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

you enter the timekeeping display, the Mosquito will

show the selected option. The TIMER text blinks on

the display if the stopwatch is running.

Fig. 2.4. The Time Mode is

indicated by the TIME text and

a mode indicator.

Fig. 2.5. The time keeping display

a) the date is displayed

b) the seconds are displayed

c) the dual time is displayed.


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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 and date are correctly set,

especially when traveling to different time zones.

2.4.2. STOPWATCH [TIMER]

The Stopwatch function is entered by pressing the

Sbutton, 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 thatyou 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 exceededthe computer watch gives a beep and returns to the

time keeping display automatically.

Fig. 2.7. The Stopwatch displays

hours, minutes and seconds.

Fig. 2.6. The Stopwatch function

is indicated by the TIMEr text

and a mode indicator.


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the instrument displays correct temperature


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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 divetime are zero. Pressing +/-

button activates alternative

display of maximum depth and

current time.

the 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 accordingto the measured Nitrox blend in your

cylinder

the oxygen partial pressure limit is set

correctly.

The Mosquito is now ready for diving.

NOTE:The surface interval time does not run before

the first dive.

After activation of the Dive Mode or after diving the Mosquito will automatically


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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 residual nitrogen has off-gassed. This

may take up to 100 hours, as described 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

WARNINGThis 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 be seen as the Dive Mode is activated. The

electroluminescent backlight will be on during the battery check. The following

Table and Figure show the various warning levels.

TABLE 3 1 BATTERY POWER INDICATOR


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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 low temperatures, even though the battery has enough capacity in

warmer conditions. In these cases repeat the battery check procedure.

After the battery check the Low Battery Warning is


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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 maybe 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.

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 battery

replacement is recommended.

Fig. 3.7. Bookmark activation.

An annotation, Bookmark, is

placed in the profile memory

during a dive by pressing the

Sbutton (Displayed with Diver

Attention symbol.).

The displays can be preset in the Surface Mode If it is not active, enter it by


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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 pressing the + or

- button. After five seconds the display changes back to the default preset displayautomatically.

3.1.3.1. PRESETTING TIME ALARM

The alarm clock is set in the Setting 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

memory on the computer display (Fig. 3.7). The Bookmarks will also be shown as

annotations in the PC-software, Suunto Dive Manager. To make a bookmark on

the profile memory during a dive press theSbutton. The Diver Attention Symbol

will be displayed to confirm the bookmark.

.

3.2. SCUBA DIVING


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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 Sbutton. After showing the text PLAN and the

mode indicator (Fig. 3.8.), the display will show the no-decompression limit for

the depth of 9 m [30 ft]. By pressing the +button, the Mosquito will calculate and

show the next deeper no-decompression limits in 3 m [10 ft] increments endingat 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 Mor the Sbutton.

NOTE:The Planning mode is disabled in the Air/EAN Error mode (see chapter

3.2.5.).

Higher Altitude and conservative Personal Adjustment Modes will shorten the

no-decompression time limits. These limits at different Altitude and Personal

Adjustment Mode selections are shown in Table 7.1. and 7.2.


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3.2.1.2. PRESETTING THE DISPLAYS IN


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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. BASIC DIVE DATA

The dive 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-decompressionstop 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 and current time.

Fig. 3.10. Dive has just begun.

Available no-decompression

time is more than 199 min.

During a no-decompression stop dive, the following information will be displayed


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(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 setting on the 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 minutes, indicated as DIVE TIME or the current

time, indicated as TIME in the lower right corner.


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3.2.1.4.1. RECOMMENDED SAFETY STOP


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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-decompression time (Fig. 3.12.).

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.

3.2.1.4.2. MANDATORY SAFETY STOP

When the ascent rate exceeds 12 meters/min [40 ft] momentarily or 10 meters/min

[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 [20 ft to 10] also the CEILING label, ceiling depth and

the calculated Safety Stop time appear in the display. You should wait until the

Mandatory Safety Stop warning disappears (Fig. 3.13.).

The Mandatory Safety Stop time always includes the three minute RecommendedSafety Stop time. The total length of the Mandatory Safety Stop time depends on

the seriousness of the ascent rate violation.


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3.2.1.5. ASCENT RATE INDICATOR


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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 exceeded

continuously or that the current ascent rate is significantly above the allowedrate.


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3.2.1.6. DECOMPRESSION DIVES


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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 upward pointing arrow (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 givesyou the option to decompress with a more gradual and natural series of mini steps

within the decompression range (continuous decompression).

Fig. 3.16. Ceiling, ceiling zone,

floor and decompression range.

The ascent time (ASC TIME) is the minimum amount of time needed to reach the

surface in a decompression dive It includes:


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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 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 increase the amount of air required to reach the surface.

CEILING, CEILING ZONE, FLOOR AND DECOMPRESSION RANGE


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When in decompression, it is important that you understand the meaning of

ceiling, floor, 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 all stops.

The ceiling zone is the optimum decompression stop zone. It is the zone

between the minimum ceiling and 1.8 m [6 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 andfloor. 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 your dive profile. The ceiling

depth will be fairly shallow when you enter the decompression mode, but if youremain at depth, it will move downward and the ascent time will increase. Likewise,

the floor and ceiling may change upwards while you are decompressing.


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only after the ASC TIME and CEILING labels have

disappeared, which means that the decompression stop


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Fig. 3.20. Decompression dive,

above ceiling. Note downward

pointing arrow, Er warning andan audible alarm. You should

immediately (within 3 minutes)

descend to or below ceiling.

pp , p p

and any Mandatory Safety Stop has been completed.

You are advised, however, to stay until the STOP sign

has also gone. This indicates that the three minuteRecommended 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 violate the decompression, thedive computer goes into a permanent Error Mode. In

this mode the instrument can only be used as a depth

gauge and timer. You must not dive again for at least

48 hours (see chapter 3.2.5.).


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3.2.2.2. PRESETTING THE DISPLAYS IN

THE EAN MODE


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Fig. 3.21. Nitrox display.

Maximum depth based on set

O2% (21%) and PO

2 (1.4 bar)

is 54.1 m [177 ft].

Fig. 3.22. Diving in EAN mode.

The O2% is set to 32%. PO2 is

0.9. Alternative displays are

maximum depth, temperature,

dive time and time.

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.


the display (Fig. 3.22.):

current oxygen partial pressure

the dive time or

the current time.


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3.2.3. AT THE SURFACE

3 2 3 1 SURFACE INTERVAL AFTER AN AIR/EAN DIVE


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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 followinginformation (Fig. 3.24. and 3.25.):

maximum depth of most recent dive in meters [ft]

present depth in meters [ft]

the surface 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 time

STOP label for 5 min, if the Mandatory Safety Stop was violated

ASC TIME, if the decompression ceiling was violated (= Error Mode)(Fig. 3.26.)

Or in the lower display according the selection and

mode:


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Fig. 3.24. Surface display.

You have surfaced from a 18

minute dive, which maximum

depth was 20.0 m [66 ft]. Thepresent depth is 0.0 m [0 ft]

and surface interval time is 0.

Airplane symbol indicates that

you should not fly and diver

attention symbol indicates that

you should prolong your surface

interval time because of excessmicro-bubbles.

Fig. 3.25. Surface display.

Alternating display showing

the no-flying time.

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%

(if set to EAN mode)

If set to EAN mode, the current oxygen toxicityexposure is shown with an Oxygen Limit Fraction

(OLF) bar graph along the right side of the display.

3.2.3.2. DIVER ATTENTION SYMBOL

The Diver Attention Symbol is an advice to extend


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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.

e ve tte t o Sy bo s a adv ce to e te d

surface interval. Some patterns of diving, in particular

multiday diving with many dives and short surface

intervals, cumulatively add a higher risk of DCI.

When this is detected in addition to adapting the

decompression algorithm, the Diver Attention

Symbol is shown.

3.2.3.3. DIVE NUMBERINGSeveral 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 DIVE1, the second as DIVE 2, the third as DIVE 3, etc.

If you start a new dive with less than 5 minutes of

surface interval time, the dive computer interprets this

as a continuation of the previous dive and the dives

are considered to be the same. The diving display willreturn, the dive number will remain unchanged, and


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If a diver had less than 2 hours total accumulated dive time in the last 48

hours, then a 12 hour surface interval before flying is recommended.

ll i di h i d d i fl i h ld b


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Following any dive that required a decompression stop, flying should be

delayed for at least 24 hours, and if possible, for 48 hours.

Suunto recommends that flying is avoided until all the DAN and UHMSguidelines and the dive 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 thecorrect Altitude Mode according to Table 3.3. The dive computer will adjust its

mathematical model according to the entered altitude mode, giving shorter no-

decompression times at higher altitudes (see chapter 7.1., Table 7.1. and 7.2.).

TABLE 3.3. ALTITUDE ADJUSTMENT RANGES


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The entered Altitude Adjustment Mode is indicated by mountain symbols (A0,

A1 = one mountain, or A2 = two mountains). Also, the maximum altitudes aredisplayed 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.

3.2.4.2. PERSONAL ADJUSTMENT

There are adverse personal factors for DCI which divers can predict in advance


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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-step Personal 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 symbol and plus signs (P0

= a diver, P1 = diver +, or P2 = diver ++). Chapter 4.6. describes how the PersonalMode is adjusted.

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


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Mode with the help of Table 3.4. In ideal conditions, 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 aresult 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 RANGES

3.2.5. ERROR CONDITIONS

The dive computer has warning indicators that alert the user to react to certain


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situations that would significantly 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 increased. If you dive sensibly, it is very unlikely you will

ever put the instrument into the Error Mode.

OMITTED DECOMPRESSION

The Error Mode results from omitted decompression, i.e. when you stay above

the ceiling for more than three minutes. During this three-minute period the Erwarning is shown 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, allthe other displays will function as before to provide information for ascent. You

should 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.

The Error mode will stay for 48 hours, during which time you should not dive.

Whilst Mosquito is in Error mode the ASC TIME label will be displayed in thecenter window and the Planning Mode will be disabled.


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the display (Fig. 3.28.)

the dive time


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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 shown in thealternative displays.

In addition to the Dive Time display 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 theSbutton you get a bookmarkin 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. 3.30.), the display

will show (Fig. 3.31.):

Fig. 3.29. Freedive. Present

depth is 6.1 m, dive time 1.03

min and dive number is 1.

Fig. 3.30. Freediving Day

History.


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3.3.6. SURFACE INTERVAL AFTER A

FREEDIVE

A t t d th h ll th 1 2 [4 ft]


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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 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

after Freedive. Center window

showing surface time.

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


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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 interval and the backlight when:

the no-decompression dive turns into a decompression stop dive. An

arrow pointing upwards and the blinking ascent warning ASC TIME

will appear (Fig. 3.17.).

Continuous 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 pointingarrow 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 instrument will otherwise enter a permanent Error

Mode within three minutes, indicated by a permanent Er (Fig. 3.20.).

the 5 minute time limit in Freediving mode is exceeded. An error

warning Er and a upward pointing arrow will appear. After 5+1 minutes

the Mosquito goes into Error mode (Fig. 3.32).


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4. SETTING MODE [SET]

The time, date, dual time, daily alarm, scuba and

free dive selections and settings dive time and depth


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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 SET at the 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 blinkon the display (Fig. 4.3.).

Fig. 4.1. The Setting Mode is

indicated by the SET text and

mode indicator.

Fig. 4.2. Time Adjustment

Mode.

3. Press S to change the selection in the following

sequence:

-> seconds -> hours -> minutes -> 12/24 hour format


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-> 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.

5. While any other digits (except seconds) areselected (blinking), press + 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 SettingMode [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 activated and the second

digits are blinking. Page I.

Fig. 4.4. The year, month and

day is selected. Page II. Dual

time selected. Page III.

NOTE:

While the selection is blinking and no button is

operated within 10 minutes, the blinking stops and


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p g p

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]

You can set one daily alarm in the Mosquito. When

the daily alarm activates, 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 Stwo (2) times to select

the Daily alarm Setting Mode (Fig. 4.5.).

2. Wait two seconds until the Daily Alarm SettingMode activates automatically. The time mode

indicator appears and the alarm status [On/OFF]

starts to blink on the display (Fig. 4.6.).

Fig. 4.5. Daily alarm Setting

Mode.

Fig. 4.6. Daily Alarm Setting

Mode is activated.


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When Oxygen percentage (O2%) 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 Mbutton to save the settings

d t t t th S tti M d [SET]


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and to return to the Setting Mode [SET]

4.3.3. SET FREE MODE

To set the FREE mode:

1. In the Setting Mode, press Sthree (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/disable status [On/OFF] is selected (blinking) press + or - to

change the status.3. Press Sto change the selection in the following sequence:

->On/OFF status -> AIR/EAN/FREE mode

When the dive mode is selected (blinking) press + or - to change the mode to

FREE.4. After you have set the FREE, press the Mbutton to save the settings and to

return to the Setting Mode [SET].


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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


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( y ) g p y

indicates that the alarm is on.5. While the depth digits are selected (blinking), press

+ to increase the value or - to decrease it at intervals

of 0.5 m [1 ft]. Holding down either button starts the

scrolling 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, thealarm 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. After you have set the depth alarm, press the M

button to save the settings and to return to the Setting

Mode [SET].

Fig. 4.12. Dive Time Alarm.

Display when more than 5minutes dive time left.

4.5. ALTITUDE, PERSONAL AND

UNIT ADJUSTMENT SETTINGS

[AdJ]


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Fig. 4.13. Adjustment Mode.

Fig. 4.14. Setting Altitude

Adjustment.

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 3.2.4.), it is imperative that the diver enters

the correct selection before diving. Use the Altitude

Adjustment to select the correct altitude mode. Use

the Personal Adjustment to add an extra level ofconservatism. 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 Sfive (5) times

to select the Altitude, Personal and Unit Adjustment

Mode (Fig. 4.13.).2. Wait two seconds until the Adjustment Mode

activates automatically. The altitude setting starts to

blink on the display (Fig. 4.14.).

3. Press S to change the selection in the following

sequence.

->altitude adjustment -> personal adjustment -> units


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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 + or - to change the Personal

Adjustment Mode (Fig. 4.15.).

6. While the units are blinking in the lower part of thedisplay, press + or - to change units (Fig. 4.16.).

7. After you have set the desired adjustments, press

the Mbutton to save the settings and to return to the

Setting Mode [SET] ).

WARNING

Always recheck the personal and altitudeadjustment to ensure that the altitude is not set

for an altitude less than that of the dive site andthat the personal mode corresponds to the desiredconservatism. Failure to enter this informationcould result in dive planning errors and riskexposure to decompression sickness.

Fig. 4.15. Setting Personal

Adjustment.

Fig. 4.16. Setting metric/

imperial units.

5. MEMORIES AND DATA

TRANSFER [MEM]

The memory functions for the Mosquito include the


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combined Logbook and Dive Profile 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 minutes after the dive.

Enter the Memory Mode [MEM] from other modesby 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, theMosquito beeps and returns to the timekeeping

display automatically.

Fig. 5.1. Memory Mode.


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The following information will be shown on four

pages:

Page I, main display (Fig. 5.3.)

dive number in the dive series Air/EAN


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dive number in the dive series, Air/EAN

dives are indicated by a D number andFreedives by a F number

dive entry time and date.

Page II (Fig. 5.4.)

maximum depth (NOTE: 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 themaximum ascent rate

STOP label, if the Mandatory Safety Stop

was violated

Fig. 5.3. Logbook, page I.

Fig. 5.4. Logbook, page II.

Main dive related data.

ASC TIME label, if the dive was a

decompression stop dive

Diver attention symbol, if the dive was

started while symbol was displayed


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downward pointing arrow, if the ceiling wasviolated

oxygen percentage (only for nitrox dives)

maximum OLF during the dive (only for

nitrox dives).

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 theSbutton for Bookmark

blinking SLOW and STOP label whenregistered

blinking ASC TIME label when the dive

became a decompression dive.

Fig. 5.5. Logbook, page III.

Surface interval time, average

depth.

Fig. 5.6. Logbook, page IV.

Profile of specific dive.


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After the last depth figure of the selected profile, the Mosquito automatically

returns to Display I of the same dive in the Logbook. If desired, the profile of the

same dive can be recalled again following the above procedure.

The scrolling of the profile can be stopped by pressing any button.


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PressSto stop the scrolling and to return to Display I of thesame divein the Logbook.

Press + to stop the scrolling and to change to scrolling thenext divein

the Logbook.

Press - to stop the scrolling and to change to scrolling theprevious 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 considered to belong to the same repetitive

dive series if the no-flying time has not ended. See Dive Numbering in chapter

3.2.3.3. for further information.

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


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g p p

Dive History Memory Mode:

1. In the Memory Mode [MEM], press S two (2)

times to select the Dive History Memory Mode

(Fig. 5.8.). The HIS text appears at the bottom of the

display to indicate the selected 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 maximum values are reached, the

counters will start again from 0.

Fig. 5.8. Dive History Memory.

Fig. 5.9. Scuba Dive HistoryMemory. Total number of

dives, dive hours and maximum

depth.

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


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the - or + buttons once when the History Memory isselected. The following Free dive information will be

shown on the display (Fig. 5.10.):

the maximum depth ever reached

the longest free dive time ever reached

The freedive history is indicated by a F on the lowerleft 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 SUUNTOPC-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. ThePC-Interface software can be used for educational and

demonstration purposes, for planning dives, as well

as for keeping complete record of your dive history

with the Mosquito.

Fig. 5.10. Free dive History

Memory.


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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


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the selected mode (Fig. 5.11.).2. Wait two seconds until the Data Transfer Mode

activates automatically.

NOTE:While in the Data Transfer Mode, the water

contact is used only for the data transfer, and when

connecting 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 orno data is transferred within 5 minutes, the Mosquito

beeps and returns to the timekeeping display

automatically.

Using the PC software, you are able to enter setup

options such as:

input a personal, 30 character field into the

Mosquito (i.e. your name)

reset the Dive Historys max depth to zero.

Fig. 5.11. Data Transfer and

PC-Interface

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.


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6.1. CARE OF YOUR MOSQUITO

NEVER try to open the case of the Mosquito.

Every two years or after 200 dives (whichever comes first) have your

Mosquito serviced by an authorized dealer or distributor. This service

will include a general operational check, replacement of the battery anda water resistance check 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 immediatelyby your SUUNTO dealer or distributor.

Should you detect scratches, cracks or other such flaws on the display that

may impair its durability, have it replaced immediately by your SUUNTO

dealer or distributor.

Check the bars holding the strap and the buckle for flaws. If necessary,have them replaced immediately by your SUUNTO dealer or

distributor.

Wash and rinse the unit in fresh water after every use.

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

with such agents will damage seals, case and finish.


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g g ,

Store your Mosquito in a dry place when you are not using it.

The Mosquito will display a battery symbol as a warning when the power

gets too low. When this happens, the Mosquito should not be used until

the battery has been replaced (see chapter 3.1.2.).

Do not fasten the strap of your Mosquito 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 isthe result of organic contaminates found in both salt and fresh water. Suntan oil,

silicone spray and grease will speed up this process. As a result of this buildup,

moisture will be trapped next to the water contact and will not allow your Mosquito

to operate properly.

The water contact can be cleaned with a small brush (e.g. toothbrush).

IMPORTANT: The Mosquito should be soaked, then thoroughly rinsed with

fresh water and 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 for possible

moisture or water. DO NOT use the Mosquito if you detect any moisture or

water inside.

CAUTION!


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do not use compressed air to blow water off the unit do not use solvents or other cleaning fluids that might cause damage

do not test or use the Mosquito in pressurized air

6.3. WATER RESISTANCE INSPECTION

Water resistance of the unit 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 moistureinside 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 responsibility for damage caused by moisture in the

Mosquito, if the instructions of this manual are not carefully followed.

In case of a leak immediately bring the Mosquito to an authorized SUUNTOdealer or distributor.


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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.


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7. Check that the battery compartment surfaces are clean. Clean with soft clothif necessary.

8. Gently insert the new battery under the battery retainer/contact. Check the

polarity of the battery: the - mark should point toward the bottom of the

compartment and the + mark upwards.

9. Check that the new battery 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 lid firmly but carefully clockwise until it snaps

into its locked position.

12. The dive computer should now active its timekeeping mode and show time

18:00 [6:00 PM] and date SA 1.1. 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.

7. TECHNICAL DESCRIPTION

7.1. OPERATING PRINCIPLES

NO-DECOMPRESSION LIMITS

h d i li i di l d b h di f h fi di


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The no-decompression limits displayed by the dive computer for the first dive toa 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

TABLE 7.2. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARIOUS

DEPTHS [FT] FOR THE FIRST DIVE OF A SERIES


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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

l d d ll i ti d ilib i i h d It i d d th t


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released gradually in time and equilibrium is reached. It is recommended that youadapt to the new altitude by waiting at least three hours before making a dive.

Before high altitude diving, the instrument must be set to the Altitude Adjustment

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 requires a minimum surface interval of 5 minutes between

dives in the Air/EAN mode. If a surface interval is shorter than 5 minutes, the nextdive is treated as a continuation of the previous dive. In Free mode this surface

interval is 2 seconds.

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

d l d i ti b t S t d B R Wi k BS MS


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developed in a 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). It incorporates consistency with real physical laws for gas

kinetics. The advantage of Suunto RGBM is additional safety through its ability toadapt 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 diving

Computing closely spaced repetitive diving

Reacting to a dive deeper than the previous dive

Adapting for rapid ascents which produce high micro-bubble (silent-

bubble) build-up.

SUUNTO RGBM ADAPTIVE DECOMPRESSION

The SUUNTO RGBM algorithm adapts its predictions of both the effects of

micro-bubble build-up and adverse dive profiles in the current dive series. It will

also change these calculations according to the personal adjustment you select.

The pattern and speed of decompression at the surface is adjusted according to


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The pattern and speed of decompression at the surface is adjusted according tomicro-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 decompressionobligations 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, 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 adapting the

d i l ith S t RGBM ill i i t l d i


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decompression algorithm Suunto RGBM will in some circumstances also advise,

with the Diver Attention Symbol (review chapter 3.2.3.2.) that the diver extend

the surface interval

7.3. OXYGEN 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 upper limit of 1.4 bar

PO2is used as a default

the CNS% limits up to 1.4 bar are based on 1991 NOAA Diving Manual

limits, but the limits higher than 1.4 bar are significantly shortened

the OTU monitoring is based on the long-term daily tolerance level and

the recovery rate is reduced.

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 O2%

the color coded OLF% bar graph for either CNS% or OTU%


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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 PO2is below 0.5 bar

audible alarms are given and the actual PO2value blinks when it exceeds

the preset limit in dive planning the maximum depth limit according to the O

2% and

maximum PO2selected.

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]


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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(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 20C

[68F] (complying with prEN 13319). Depth display range: 0 99.9 m [300 ft].

Resolution: 0.1 m [1 ft]

Temperature display:

Resolution: 1C [1.5F]

Display range: - 20 ... +50C [- 4 ... +122F]

Accuracy: 2C [ 3.6F] within 20 minutes of temperature change

Calendar Clock:


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Calendar Clock:

Accuracy: 15 s /month (at 20C [68F])

12/24 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).


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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 480i ( i ) Th ff i h lf i l d d


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Tissue compartment halftimes: 2.5, 5, 10, 20, 40, 80, 120, 240 and 480minutes (on gassing). The off gassing halftimes are slowed down.

Reduced gradient (variable) M values based on diving habit and dive

violations. The M values are tracked up to 100 hours after a dive.

The EAN and oxygen exposure calculations are based on recommendations

by R.W. Hamilton, PhD and currently accepted exposure time limit tablesand 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 expectancy at 20C [68F]:

0 dives/y -> 16 months




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 10C [50F] the expected battery lifetime may

be 50-75% of that at 20C [68F].Th f th b kli ht d dibl l


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[ ] The use of the 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 enough capacity. In this

case, the warning usually disappears when the Dive Mode is activated again.

8. WARRANTY

NOTE: The warranty arrangements vary in different countries. The dive

computer packaging contains information regarding the warranty benefits and

requirements applicable to your purchase.

This Suunto dive computer is warranted against defects in workmanship and


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p g pmaterials for a period of two years after purchase to the original owner subject to

and in accordance with the terms and conditions set forth below:

The dive computer should be serviced or repaired only by an authorized Suunto

dealer or distributor.

This warranty does not cover damage to the product resulting from improper

usage, improper maintenance, neglect of care, alteration 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, proof of purchase and/or service

registration card, as required in your country. The claim will be honored and the

suunto mosquito ug en

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