Suunto Mosquito User manual

SUUNTO
MOSQUITO
EN
USER’S GUIDE

SUUNTO MOSQUITO
O
L
F
A
S
C
Present Depth
Maximum Depth
Average Depth in Logbook
Fast Ascent Warning
(SLOW)
AC Indicator
Do Not Fly Icon
Bar Graph:
- Ascent Rate
- Battery Power
- Mode Indicator
Diver Attention Symbol
Temperature
Maximum Depth
Mode Text
Oxygen Percentage in Nitrox
Mode
Week Day
Timer Hours and Minutes
Low Battery Warning
Altitude Adjustment
Mode
Personal Adjustment
Mode
Safety 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 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

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.

2
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
after 200 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 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 claims by third
parties, which may arise through the use of this device.
Due to continuous product development, the MOSQUITO is subject to change
without notice.

3
WARNING
Read this manual. Carefully read this instruction manual in its entirety
paying close attention to all warnings listed below, including chapter 1.1.
”Safety Precautions”. Make sure that you fully understand the use, displays
and limitations of the dive computer because any confusion resulting from
neglecting to follow this instruction manual or from improper use of this
device may cause a diver to commit errors that may lead to serious 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 trained in the proper use of scuba diving equipment should use a
dive 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.

4
WARNING
There is always a risk of decompression illness (DCI) for any dive profile even
if you follow the dive plan prescribed by dive tables or a dive computer. No
procedure, dive computer or dive table will prevent the possibility of DCI or
oxygen toxicity. An individual’s physiological make up can vary from day to
day. The dive computer cannot account for these variations. You are strongly
advised to remain well within the exposure limits provided by the instrument
to minimize the risk of DCI. As an added measure of safety, you should 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 PO2of 1.4 bar settings.
WARNING
Dives with required decompression stops are not recommended. You should
ascend and begin decompression immediately when the dive computer shows
you that a decompression stop is required. Note the blinking ASC TIME
symbol and the upward pointing arrow.
WARNING
Use back-up instruments. Make sure that you use back-up instrumentation
including a depth gauge, submersible pressure gauge, timer or watch, and have
access to decompression tables whenever diving with a dive computer.

5
WARNING
Perform pre-checks. Always activate and check the device before diving in
order to ensure that all Liquid Crystal Display (LCD) segments are completely
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 Transfer
mode before diving, as the computer does not automatically revert to Dive
mode from Data Transfer mode.
WARNING
You are advised not to fly any time the computer counts down the no-flying
time. Always activate the computer to check the remaining no-fly time
prior to flying. The computer goes into the stand-by display automatically 5
minutes after surfacing. Flying 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. Its information will not apply to someone who has not been wearing
it throughout a dive or sequence of repetitive dives. Its dive profiles must match
that of the user. If it is left on the surface during any dive, it will give inaccurate
information for subsequent dives. No dive computer can take into account dives
made without the computer. Thus any diving activity up to four days prior to initial
use of the computer may cause misleading information and must be avoided.

6
WARNING
Do not dive with a cylinder of enriched air if you have not personally verified
its contents and entered the analyzed value into your dive computer. Failure to
verify cylinder contents and enter the appropriate O2% into your dive computer
will result in incorrect dive planning information.
WARNING
The dive computer will not accept fractional percentage values of oxygen
concentration. Do not round up fractional percentages. For example, 31.8%
oxygen should be entered as 31%. Rounding up will cause nitrogen percentages
to be understated and will affect decompression calculations. 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 PO2setting to affect oxygen exposure.
WARNING
Set the correct Altitude Adjustment Mode when diving at altitudes greater than
300 m [1000 ft] the Altitude Adjustment feature must be correctly selected
in order for the computer to calculate the decompression status. The dive
computer is not intended for use at altitudes greater than 3000 m [10000 ft].
Failure to select the correct Altitude Adjustment setting or diving above the
maximum altitude limit will result in erroneous dive and planning data.

7
WARNING
Set the correct Personal Adjustment Mode. Whenever it is believed that
factors that tend to increase the possibility of DCI exist, it is recommended
that you use this option to make the calculations more conservative. Failure
to select the correct Personal Adjustment Setting will result in erroneous dive
and planning data.
WARNING
Freediving after scuba diving is not recommended. It is recommended to avoid
freediving for at least two hours and not to exceed five 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 possible at any time. Changing from EAN
to AIR mode however requires you to wait until the no-flying time has counted
down. 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.

8
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......................................................................................... 17
2.2. 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] ....................................................................... 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. SCUBA DIVING................................................................................... 30