USER’S GUIDE
SUUNTO ZOOP
en
ii
The Smart Button:
- Activation
- Mode Operations
Current Time Display
Surface Interval Time
No Flying Time
No-Decompression Time
Total Ascent Time
Safety Stop Time
°
C
Low Battery Warning
Temperature
Week Day
Mode Text
Personal Adjustment
Mode
Do Not Fly Icon
Bar Graph:
- Mode Indicator
- Consumed Botton Time
- Oxygen Limit Fraction
Bar Graph:
- Ascent Rate Indicator
- Battery Power Indicator
- Logbook Page Indicator
Present Depth
Dive Counter
Dive Planning Button
Scroll Button (increase value, ascend)
Oxygen Percentage in
Nitrox Mode
Arrows:
- Decompression Stop at the Ceiling Depth
- Mandatory Safety Stop Zone
- Ascent Recommended
- Must Descend
Dive Time
Time
Month, Day
Maximum Depth
Ceiling Depth on Decompression
Mandatory Safety Stop Depth
Average Depth on Logbook
Oxygen Partial Pressure
AM/PM Indicator
High Altitude Mode
Logbook Symbol
DiveTime/Depth Alarm
On Indicator
Dive Attention Symbol
Indicators for the Scroll
Buttons
Time (alternative display) Button
Scroll Button (decrease value, descend)
Fast Ascent Warning
(SLOW)
Safety Stop Warning
Safety Stop Indicator
Indicators for the Smart
Button
Quick reference guide ZOOP
1
INTELLECTUAL PROPERTY AND CONFORMANCE STATEMENTS
TRADEMARK
Suunto is a registered trademark of Suunto Oy.
COPYRIGHT
© Suunto Oy 8/2011. All rights reserved.
PATENT NOTICE
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.
EN 13319
EN 13319 is a European diving depth gauge standard. Suunto dive computers are
designed to comply with this standard.
EN 250 / FIOH
The tank pressure gauge and dive instrument parts used in measuring the tank pres-
sure meet the requirements set in the section of the European Standard EN 250 that
concern tank pressure measurements. FIOH, notied body no.0430, has EC type-
examined this type of personal protective equipment.
2
WARNING YOUMUSTREADtheleaetanduserguideforyourdivecomputer.
Failuretodosomayleadtoimproperuse,seriousinjuryordeath.
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.
NOTE! Youcan changefromAirmodetoNitroxmodeatanytime.Itis
howevernotpossibletorevertbacktoAirmodefromNitroxmode
beforetheinstrumenthascounteddowntheno-yingtime.
When planning both air and nitrox dives during the same dive series, you should set
the instrument in Nitrox mode and modify the gas mix accordingly.
WARNING ALLERGIC REACTIONS OR SKIN IRRITATIONS MAY OCCUR
WHENPRODUCTISINCONTACTWITHSKIN,EVENTHOUGH
OUR PRODUCTS COMPLY WITH INDUSTRY STANDARDS.
IN SUCH EVENT, STOP USE IMMEDIATLY AND CONSULTA
DOCTOR.
3
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expo-
suresthattendtoincreasetheriskofdecompressionillness(DCI).
Therefore,Suuntostronglyrecommendsthatthedevicenotbeused
forcommercialorprofessionaldivingactivity.
WARNING ONLYDIVERSTRAINEDINTHEPROPERUSEOFSCUBADIVING
EQUIPMENTSHOULDUSEADIVECOMPUTER!Nodivecomputer
canreplacetheneedforproperdivetraining.Insufcientorimproper
trainingmaycauseadivertocommiterrorsthatmayleadtoserious
injuryordeath.
WARNING THEREISALWAYSARISKOFDECOMPRESSIONILLNESS(DCI)
FORANYDIVEPROFILEEVENIFYOUFOLLOWTHEDIVEPLAN
PRESCRIBEDBY DIVE TABLES ORADIVECOMPUTER. NO
PROCEDURE,DIVECOMPUTERORDIVETABLEWILLPREVENT
THEPOSSIBILITYOF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tnessbeforediving.
4
WARNING SUUNTOSTRONGLYRECOMMENDSTHATSPORTDIVERSLIMIT
THEIRMAXIMUMDEPTHTO40M[130FT]ORTOTHEDEPTH
CALCULATEDBYTHECOMPUTERBASEDONTHESELECTED
O
2
%ANDAMAXIMUMPO
2
OF1.4BAR!Exposuretogreaterdepths
increasestheriskofoxygentoxicityanddecompressionillness.
WARNING DIVES WITH REQUIRED DECOMPRESSION STOPS ARE
NOT RECOMMENDED. YOU SHOULD ASCEND AND BEGIN
DECOMPRESSIONIMMEDIATELYWHENTHEDIVECOMPUTER
SHOWSYOUTHATADECOMPRESSIONSTOPISREQUIRED!
NotetheblinkingASCTIMEsymboland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thedivecomputer.
WARNING PERFORM PRECHECKS!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adjust-
mentsarecorrect.
WARNING YOUAREADVISEDTOAVOIDFLYINGANYTIMETHECOMPUTER
COUNTSDOWN THE NO-FLY TIME.ALWAYSACTIVATE THE
COMPUTERTOCHECKTHEREMAININGNO-FLYTIMEPRIOR
5
TOFLYING!Flyingortravellingtoahigheraltitudewithintheno-y
timecangreatlyincreasetheriskofDCI.Reviewtherecommen-
dationsgivenbyDiversAlertNetwork(DAN).Therecanneverbe
aying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wearingit
throughoutadive,orsequenceofrepetitivedives.Itsdiveproles
mustmatchthatoftheuser.Ifitisleftonthesurfaceduringanydive,
thedivecomputerwillgiveinaccurateinformation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misleadinginformationandmust
beavoided.
WARNING DONOTEXPOSEANYPARTOFYOURDIVECOMPUTERTOANY
GASMIXCONTAININGMORETHAN40%OXYGEN!Enrichedair
withgreateroxygencontentpresentsariskofreorexplosionand
seriousinjuryordeath.
WARNING THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL
PERCENTAGEVALUESOFOXYGENCONCENTRATION.DONOT
ROUNDUPFRACTIONALPERCENTAGES!Forexample,31.8%
oxygenshouldbeenteredas31%.Roundingupwillcausenitrogen
6
percentagestobeunderstatedandwillaffectdecompressioncal-
culations.Ifthereisadesiretoadjustthecomputertoprovidemore
conservativecalculations,usethepersonaladjustmentfeatureto
affectdecompressioncalculationsorreducethePO
2
settingtoaffect
oxygenexposureaccordingtotheenteredO
2
%andPO
2
values.
WARNING SETTHECORRECTALTITUDEADJUSTMENTMODE!Whendiv-
ingataltitudesgreaterthan300m[1000ft],theAltitudeAdjustment
featuremustbecorrectlyselectedinorderforthecomputertocal-
culate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Adjustmentsettingordivingabovethemaximum
altitudelimitwillresultinerroneousdiveandplanningdata.
WARNING SETTHECORRECTPERSONALADJUSTMENTMODE!Whenever
itisbelievedthatfactorsthattendtoincreasethepossibilityofDCI
exist,itisrecommendedthatyouusethisoptiontomakethecal-
culationsmoreconservative.FailuretoselectthecorrectPersonal
Adjustmentsettingwillresultinerroneousdiveandplanningdata.
WARNING DONOTEXCEEDTHEMAXIMUMASCENTRATE!Rapidascents
increasetheriskofinjury.YoushouldalwaysmaketheMandatory
and Recommended Safety Stops after you have exceeded the
maximumrecommendedascentrate.IfthisMandatorySafetyStop
isnotcompletedthedecompressionmodelwillpenalizeyournext
dive(s).
7
WARNING YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN
DISPLAYEDBYTHEINSTRUMENT!Theascenttimewillincrease
ifyou:
• remainatdepth
• 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.
WARNING NEVERASCENDABOVETHECEILING!Youmustnotascendabove
theceilingduringyourdecompression.Inordertoavoiddoingsoby
accident,youshouldstaysomewhatbelowtheceiling.
WARNING DONOTDIVEWITHACYLINDEROFENRICHEDAIRIFYOUHAVE
NOTPERSONALLYVERIFIEDITSCONTENTSANDENTERED
THEANALYSISVALUEINTOYOURDIVECOMPUTER!Failureto
verifycylindercontentsandentertheappropriateO
2
%intoyourdive
computerwillresultinincorrectdiveplanninginformation.
WARNING DONOTDIVEWITHAGASIFYOUHAVENOTPERSONALLY
VERIFIED ITS CONTENTS AND ENTERED THE ANALYZED
VALUEINTOYOURDIVECOMPUTER!Failuretoverifycylinder
8
contentsandentertheappropriategasvalueswhereapplicableinto
yourdivecomputerwillresultinincorrectdiveplanninginformation.
WARNING Divingwithgasmixturesexposesyoutorisksthatare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.
WARNING Travelingtoahigherelevationcantemporarilycauseachangeinthe
equilibriumofdissolvednitrogeninthebody.Itisrecommendedthat
youacclimatizetothenewaltitudebywaitingatleastthreehours
beforediving.
WARNING WHENTHEOXYGENLIMITFRACTIONINDICATESTHATTHE
MAXIMUMLIMITISREACHED,YOUMUSTIMMEDIATELYTAKE
ACTIONTOREDUCEOXYGENEXPOSURE.Failuretotakeaction
toreduceoxygenexposureafterthewarningisgivencanrapidly
increasetheriskofoxygentoxicity,injury,ordeath.
WARNING SuuntoalsorecommendsthatyoureceivetraininginFreediving
techniques and physiology before conducting breath hold dives.
No divecomputer canreplace the needfor proper divetraining.
Insufcientorimpropertrainingmaycauseadivertocommiterrors
thatmayleadtoseriousinjuryordeath.
9
WARNING Using the Suunto Dive Planner software is not a substitute for
properdivetraining.Divingwithmixedgaseshasdangersthatare
notfamiliartodiversdivingwithair.Todivewithtrimix,triox,heliox
andnitroxorallofthem,diversmusthavespecializedtrainingfor
thetypeofdivingtheyaredoing.
WARNING Always use realistic SAC rates and conservative turn pressures
duringdiveplanning.Overlyoptimisticorerroneousgasplanning
canresultintheexhaustionofbreathinggasduringdecompression
orinacaveorawreck.
WARNING ENSURETHEWATERRESISTANCEOFTHEDEVICE!Moisture
insidethedeviceorbatterycompartmentwillseriouslydamagethe
unit.OnlyanauthorizedSUUNTOdealerordistributorshoulddo
serviceactivities.
10
TABLE OF CONTENTS
WARNINGS ............................................................................................................... 2
1. INTRODUCTION ................................................................................................. 13
1.1. SAFETY PRECAUTIONS ............................................................................. 14
1.1.1. Emergency Ascents ............................................................................ 15
1.1.2. Dive Computer Limitations ................................................................. 15
2. GETTING ACQUAINTED .................................................................................... 16
2.1. FUNCTIONS................................................................................................. 16
2.2. PUSH BUTTONS ......................................................................................... 17
2.3. WATER CONTACTS .................................................................................... 19
3. DIVING WITH THE ZOOP ................................................................................... 20
3.1. BEFORE DIVING ......................................................................................... 20
3.1.1. Activation and Prechecks ................................................................... 20
3.1.2. Battery Indication ................................................................................ 23
3.1.2.1. Battery Power Indicator......................................................... 23
3.1.3. Dive Planning [PLAN] ......................................................................... 25
3.1.4. User Denable Functions and Alarms ................................................ 27
3.2. SAFETY STOPS .......................................................................................... 27
3.2.1. Recommended Safety Stop ............................................................... 28
3.2.2. Mandatory Safety Stop ....................................................................... 28
3.3. DIVING WITH THE ZOOP ............................................................................ 29
3.3.1. Basic Dive Data .................................................................................. 30
11
3.3.2. Bookmark ........................................................................................... 32
3.3.3. Consumed Bottom Time (CBT) .......................................................... 32
3.3.4. Ascent Rate Indicator ......................................................................... 33
3.3.5. Decompression dives ......................................................................... 36
3.4. DIVING IN NITROX MODE .......................................................................... 42
3.4.1. Before Diving ...................................................................................... 42
3.4.2. Oxygen Displays................................................................................. 44
3.4.3. Oxygen Limit Fraction (OLF) .............................................................. 46
3.5. AT THE SURFACE ....................................................................................... 47
3.5.1. Surface Interval .................................................................................. 47
3.5.2. Dive Numbering .................................................................................. 48
3.5.3. Flying After Diving............................................................................... 50
3.6. AUDIBLE AND VISUAL ALARMS ................................................................. 52
3.7. HIGH ALTITUDE DIVES AND PERSONAL ADJUSTMENT ......................... 54
3.7.1. Altitude Adjustment ............................................................................. 55
3.7.2. Personal Adjustment .......................................................................... 55
3.8. ERROR CONDITIONS ................................................................................. 57
4. MENU BASED MODES ...................................................................................... 59
4.1. MEMORY FUNCTIONS [1 MEMORY] ......................................................... 61
4.1.1. Logbook and Dive Prole Memory [1 LOGBOOK] ............................. 63
4.1.2. Dive History Memory [2 HISTORY] .................................................... 67
4.1.3. Data Transfer and PC-Interface [3 PC-SET] ...................................... 67
4.2. SET MODES [2 SET] ................................................................................... 69
4.2.1. Dive Computer Model Settings [1 SET MODEL] ................................ 70
4.2.1.1. Nitrox Oxygen Settings ......................................................... 70
12
4.2.2. Alarm settings [2 SET ALMS] ............................................................. 70
4.2.2.1. Dive Time Alarm Setting........................................................ 72
4.2.2.2. Maximum Depth Alarm Setting ............................................. 73
4.2.3. Setting Time and date [3 SET TIME] .................................................. 73
4.2.4. Personal adjustments [4 SET ADJ] .................................................... 74
5. CARE AND MAINTENANCE OF MY SUUNTO DIVING COMPUTER ............... 76
5.1. BATTERY REPLACEMENT ......................................................................... 78
6. TECHNICAL DESCRIPTION .............................................................................. 84
6.1. OPERATING PRINCIPLES .......................................................................... 84
6.2. SUUNTO REDUCED GRADIENT BUBBLE MODEL (RGBM) ..................... 87
6.3. OXYGEN EXPOSURE ................................................................................. 89
6.4. TECHNICAL SPECIFICATION ..................................................................... 90
7. SUUNTO LIMITED WARRANTY FOR SUUNTO DIVING COMPUTERS AND
SUUNTO DIVING COMPUTER ACCESSORIES ............................................... 94
8. SUUNTO DIVE MANAGER (SDM) ..................................................................... 96
9. GLOSSARY......................................................................................................... 98
13
1. INTRODUCTION
Congratulations on your purchase of the SUUNTO ZOOP dive computer. The ZOOP
builds on the Suunto tradition of delivering feature-rich easy-use dive computers. Push
button controls access a wide selection of choices and the display is optimized for the
dive mode chosen. This dive computer is a compact and sophisticated multipurpose
dive instrument, designed to give you years of trouble-free service.
Choice of Operating Modes and Set-up Options
User options for the ZOOP are selected using the push buttons.
Pre Dive conguration and setup options include:
• Choice of operating mode - Air / Nitrox
• Choice of unit - Metric / Imperial
• Maximum depth alarm
• Dive time alarm
• Clock, calendar
• Mix Oxygen fraction % (Nitrox mode only)
• Maximum PO
2
(Nitrox mode only)
• Altitude adjustment
• Personal adjustment
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Continuous Decompression with Suunto RGBM
The Suunto Reduced Gradient Bubble Model (RGBM) utilized in the ZOOP predicts
both dissolved and free gas in blood and tissues of divers. It is a signicant advance
on the classic Haldane models, which do not predict free gas. The advantage of
Suunto RGBM is additional safety through its ability to adapt to a variety of situations
and dive proles.
In order to optimize how to respond to different added risk situations an additional
category of stop, referred to as a Mandatory Safety Stop, has been introduced. Also
a countdown for the Recommended Safety Stop is included. The combination of stop
types will depend on the specic dive situation.
To get the most from the safety benets be sure to read the summary of the Reduced
Gradient Bubble Model in chapter 6.2.
1.1. SAFETY PRECAUTIONS
Do not attempt to use the dive computer without reading this instruction manual in its
entirety, including all the warnings. Make sure that you fully understand the use, dis-
plays and limitations of the instrument. If you have any questions about the manual or
the dive computer, contact your SUUNTO dealer before diving with the dive computer.
Always remember that YOU ARE RESPONSIBLE FOR YOUR OWN SAFETY!
When used properly, the dive computer is an outstanding tool for assisting properly
trained, certied divers in planning and executing sport dives. It is NOT A SUBSTITUTE
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FOR CERTIFIED SCUBA INSTRUCTION, including training in the principles of
decompression.
1.1.1. Emergency Ascents
In the unlikely event that the dive computer malfunctions during a dive, follow the
emergency procedures provided by your certied 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 Limitations
While the dive computer is based on current decompression research and technology,
you must realize that the computer cannot monitor the actual physiological functions
of an individual diver. All decompression schedules currently known to the authors,
including the U.S. Navy Tables, are based on theoretical mathematical models, which
are intended to serve as a guide to reduce the probability of decompression illness.
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2. GETTING ACQUAINTED
2.1. FUNCTIONS
The Suunto ZOOP can be set to function as a regular air dive computer or as a nitrox
dive computer.
The ZOOP features two dive computer models (AIR, NITROX), three main operat-
ing modes (TIME/STAND-BY, SURFACE, DIVING), two menu based main modes
(MEMORY, SET) and seven menu based submodes (review separate Quick Reference
Guide). You can scroll through the modes using the push buttons. The mode indicator at
the left side and the mode text at the bottom of the display indicate the selected mode.
The timekeeping display is the default display of the instrument (Fig. 2.1.). If a button is
not pressed within 5 minutes, the dive computer beeps and returns to the timekeeping
display automatically (except in Diving mode). The timekeeping display shuts off after
two hours, but pressing the PLAN or TIME button activates it.
Making the ZOOP Personal
For best use of the ZOOP take some time and make it YOUR computer.
Set the correct time and date. Read this manual. Set dive alarms and make all the
other settings listed in the introduction in this manual. Install the ZOOP in your console
or t it on to your wrist.
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All this so you know your computer and have it set up as you want it before getting
into the water.
2.2. PUSH BUTTONS
The ZOOP has easy-to-use push buttons and an advisory display, which guides the
user. The SMART (MODE) button is the key to the system. The two scroll buttons,
PLAN and TIME, are used for scrolling up and down the menus and to show the al-
ternative displays. The dive computer is controlled with these three push buttons as
follows (see Fig. 2.2.).
The SMART button
The PLAN, TIME and
SCROLL buttons
Fig. 2.1. Timekeeping
display. Pressing PLAN
or TIME button activates
display.
Fig. 2.2. Push buttons of
the dive computer.
Press the SMART (MODE) button
• To activate the dive computer.
• To change from the Surface Mode to the menu based modes.
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• To select, conrm or quit a submode (short press).
• To immediately exit any submode to the Surface Mode (long press).
Press the arrow up scroll (PLAN) button
• To activate the timekeeping display, if the display is blank.
• To activate the Dive Planning in the Surface Mode.
• To make a special bookmark in the prole memory during a dive.
• To scroll up the options (, increase).
Press the arrow down scroll (ALTER) button
• To activate the timekeeping display, if the display is blank.
• To activate the alternative display(s).
• To scroll down the options (, decrease).
The dive computer is controlled with the SMART (MODE/On/Select/OK/Quit) and the
PLAN and TIME push buttons and with the water contacts as follows:
Activation presstheSMART(On)buttonorimmersetheinstrumentinwater
forve(5)seconds.
Dive Planning intheSurfaceMode,pressthePLAN(s)button.
Menu Modes presstheSMART(MODE)button.
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2.3. WATER CONTACTS
The water contacts control the automatic activation of the Dive Mode.
The water and data transfer contacts are located on bottom of the case (Fig 2.3.).
When submerged the water contacts are connected to the push buttons (which are
the other pole of the water contact) by the conductivity of the water. The “AC” text
(Active Contacts, Fig. 2.4.) will appear on display. The AC text will be shown until the
water contact deactivates or the dive computer enters the Dive Mode automatically.
C
L
O
S
E
O
P
E
N
A
B
Fig. 2.3. Depth sensor
(A), water/data transfer
contacts (B).
Fig. 2.4. Active water
contacts are indicated by
the text AC.
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3. DIVING WITH THE ZOOP
This section contains instructions on how to operate the dive computer and interpret
its displays. You will nd that this dive computer is easy to use and read. Each display
shows only the data relevant to that specic diving situation.
3.1. BEFORE DIVING
3.1.1. Activation and Prechecks
The dive computer will activate if submerged deeper than 0.5 m (1.5 ft). However, it is
necessary to turn on the Dive Mode before diving to check the altitude and personal
adjustment settings, battery condition, oxygen settings etc. Press the SMART (Mode)
button to activate the instrument.
After activation all display elements will turn on showing mostly gure 8’s and graphical
elements (Fig. 3.1.). A few seconds later the battery power indicator is shown and the
buzzer is activated (Fig. 3.2. display a, b, c or d depending on the battery voltage). If
set to Air mode the screen will enter the Surface mode (Fig. 3.3.) and if set to Nitrox
mode the essential oxygen parameters are shown with the text NITROX (Fig. 3.20.)
before the Surface mode.
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°
C
Fig. 3.1. Startup I.
All segments shown.
OK
QUIT
Fig. 3.2. Startup II. Battery power indicator.
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TIME
DIVE
m
TIME
º
C
Fig. 3.3. Startup III.
Surface mode. Depth
and dive time are zero,
current temperature,
20°C. Pressing TIME
button activates alternative
display of current time.
At this time, perform your prechecks making sure that:
• the instrument operates in the correct mode and provides a complete display
(Air/Nitrox modes)
• the low battery indicator is not on
• the altitude and personal adjustment settings are correct
• the instrument displays correct units of measurement (Metric/Imperial)
• the instrument displays correct temperature and depth (0.0 m [0 ft])
• the buzzer beeps
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And if set to Nitrox mode (refer to chapter 3.4 Diving in Nitrox mode), make sure that:
• the oxygen percentage is adjusted according to the measured Nitrox blend in
your cylinder
• the oxygen partial pressure limit is set correctly.
The dive computer is now ready for diving.
3.1.2. Battery Indication
3.1.2.1. Battery Power Indicator
This dive computer has a unique graphic Battery Power Indicator designed to give you
an advance notice of impending need to change the battery.
The Battery Power Indicator can always be seen when the Dive Mode is activated.
The following Table and Figure show the various warning levels.
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TABLE 3.1. BATTERY POWER INDICATOR
Display Operation Figure 3.2
BAT + 4 segments + OK Normal, full battery. a
BAT + 3 segments Normal, battery power is getting low
or the temperature is low.
Battery replacement is recommended
if you are going to colder conditions or
if you are planning to make a dive trip.
b
LOWBAT + 2 segments
+ low battery symbol
Battery power is low and the battery
replacement is recommended. The
battery symbol is displayed.
c
LOWBAT + 1 segments
+ QUIT + low battery
symbol
Change the battery! Returns to
the Time display. Activation and all
functions are disabled.
d
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 dis-
played at low temperatures, even though the battery has enough capacity in warmer
conditions. In these cases repeat the battery check procedure.
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After battery check the Low Battery Warning is indicated by the battery symbol
(Fig. 3.4.).
If the battery symbol is displayed in the Surface mode or if the display is faded or
weak, the battery may be too low to operate the dive computer and battery replace-
ment is recommended.
TIME
DIVE
m
º
C
QUIT
DIVE
NO DEC TIME
MAX
Fig. 3.4. Low Battery
Warning. Battery
symbol indicates that
the battery is low and
battery replacement is
recommended.
Fig. 3.5. Dive Planning.
Planning mode is
indicated by PLAN text.
No-decompression time
limit at 30.0 m [100 ft] is
14 minutes in A0/P1 mode.
3.1.3. Dive Planning [PLAN]
To enter Planning Mode, press the PLAN button at any time during Surface Mode.
After showing the text “PLAN” (Fig. 3.5.), the display will show the no-decompression
limit for the depth of 9 m [30 ft]. By pressing the down arrow () (TIME) button, the
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dive computer will calculate and show the next deeper no-decompression limits in
3 m [10 ft] increments ending at 45 m [150 ft]. By pressing the up arrow () (PLAN)
button, the next shallower depth will be shown again.
The Planning Mode is canceled by pressing the SMART (QUIT) button.
NOTE! ThePlanningmodeisdisabledinErrormode(seesection3.8.“Error
Conditions”).
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 6.1 and 6.2 in section 6.1. “Operating Principles”.
The Planning mode also accounts for the following information from previous dives:
• any calculated residual nitrogen
• all dive history for the past four days
• oxygen toxicity (Nitrox mode)
The no-decompression times given for different depths will therefore be shorter than
before your rst “fresh” dive.
DIVE NUMBERING SHOWN DURING DIVE PLANNING
Dives belong to the same repetitive dive series if the instrument was still counting
down the no-y time at the beginning of the dive.
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The surface interval must be at least 5 minutes for a dive to be considered a repetitive
dive. Otherwise, it is considered a continuation of the same dive. The dive number
will not change and the dive time will continue where it left off (see also section 3.5.2.
“Dive Numbering”).
3.1.4. User Denable Functions and Alarms
The ZOOP has several user denable functions and depth and time related alarms
that you can set according to your personal preference.
The dive computer model (Air/Nitrox) can be set in the MODE- SET- MODEL submode.
The dive alarms can be set under MODE- SET- SET ALARMS, the time and date
settings in MODE-SET-SET TIME, and the units (metric/imperial) as well as personal
adjustments in the MODE- SET- SET ADJUSTMETS submode. Setting of the user
denable functions and alarms are explained in detail in section 4.2. “Set Modes”.
3.2. SAFETY STOPS
Safety stops are widely considered “good diving practice” and are an integral part of
most dive tables. Reasons to perform a safety stop include a reduction in sub clinical
DCI, microbubble reduction, ascent control, and orientation before surfacing.
The ZOOP displays two different types of safety stops: Recommended Safety Stop
and Mandatory Safety Stop.
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The Safety Stops are indicated by:
• STOP label, when in the depth range 3 m - 6 m [10 ft - 20 ft] =
Recommended Safety Stop Countdown
• STOP+ CEILING label, when in the depth range 3 m - 6 m [10 ft - 20 ft] =
Mandatory Safety Stop Time display
• STOP label, when deeper than 6 m = Mandatory Safety Stop scheduled
3.2.1. Recommended Safety Stop
With every dive over 10 meters the instrument has a three minute countdown for the
recommended safety stop, to be taken in the 3 - 6 meter [10 ft - 20 ft] range. This is
shown with the STOP sign and a three-minute countdown in the center window instead
of the no-decompression time (Fig. 3.9.).
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.
3.2.2. Mandatory Safety Stop
When the ascent rate exceeds 12 meters/min [40 ft] momentarily or 10 meters/min
[33 ft] 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
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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 Recommended
Safety Stop time. The total length of the Mandatory Safety Stop time depends on the
seriousness of the ascent rate violation.
You must not ascend shallower than 3 m [10 ft] with the Mandatory Safety Stop warn-
ing on. If you ascend above the Mandatory Safety Stop ceiling, a downward pointing
arrow will appear and a continuous beeping starts (Fig. 3.14.). You should immedi-
ately descend to, or below, the Mandatory Safety Stop ceiling depth. If you correct
this situation at any time during that dive, there are no affects on the decompression
calculations for future dives.
If you continue to violate the Mandatory Safety Stop, the tissue calculation model is
affected and the dive computer shortens the available no-decompression time for your
next dive. In this situation, it is recommended to prolong your surface interval time
before your next dive.
3.3. DIVING WITH THE ZOOP
The ZOOP has two operating modes: Air mode for diving with standard air only and
Nitrox mode for diving with oxygen enriched (EANx) mixtures. The Nitrox mode is
enabled in the MODE-SET-MODEL.
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3.3.1. 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. 3.6.).
º
C
TIME
DIVE
m
NO DEC TIME
T
C
B
MAX
Fig. 3.6. Dive starts.
All information on the display is labeled (Fig. 3.6). During a no-decompression stop
dive, the following information will be displayed:
• your present depth in meters [ft]
• the maximum depth during this dive in meters [ft], indicated as MAX
• the available no-decompression time in minutes in the center window as NO DEC
TIME and as a bar graph on the left side of the display. It is calculated based on
the ve factors described in section 6.1. “Operating Principles”.
• the water in temperature in °C [°F] in the lower left corner
• the elapsed dive time in minutes, shown as DIVE TIME in the lower right corner
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• the Altitude Adjustment setting on the left side of the center window with a wave
and mountain symbols (A0, A1, or A2) (see Table 3.4.)
• the Personal Adjustment setting on the left side of the center window with a diver
symbol and + signs (P0, P1, or P2) (see Table 3.5.)
• Diver Attention Symbol if there is micro-bubble buildup, and surface interval
should be prolonged (see Table 3.3.)
Alternative displays by pressing the TIME button (Fig. 3.7.):
• the current time, shown as TIME
NOTE! InDiveModethealternativedisplayswitchesbacktothemaindisplay
after5seconds.
m
NO DEC TIME
T
C
B
º
C
MAX
DIVE TIME
MAX
TIME
Fig. 3.7. Fig. 3.7. Diving display. Present depth is 19.3 m [63 ft] and no-decompression stop
time limit is 23 minutes in A0/P1 mode. Maximum depth during this dive was 19.8 m [65 ft], water
temperature is 18°C [64°F], elapsed dive time is 16 minutes. Alternative display of current time 10:20
[10:20 am] is shown for 5 seconds after pressing TIME button.
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m
NO DEC TIME
T
C
B
º
C
MAX
DIVE TIME
MAX
DIVE TIME
T
C
B
ºC
m
MAX
STOP
m
NO DEC TIME
T
C
B
ºC
MAX
DIVE TIME
Fig. 3.8. Bookmark
activation. An annotation,
Bookmark, is placed in
the prole memory during
a dive by pressing PLAN
button. Note Logbook
symbol.
Fig. 3.9. A three minute
Recommended Safety
Stop.
Fig. 3.10. Ascent Rate
Indicator. Three segments.
3.3.2. Bookmark
It is possible to make special marks in the prole memory during a dive. These
Bookmarks will be shown as a blinking dive log symbol when scrolling the prole
memory on the computer display. To make a bookmark on the prole memory during
a dive press the PLAN button (Fig. 3.8.).
3.3.3. Consumed Bottom Time (CBT)
The available no-decompression stop time is also shown visually in the multi-function
bar graph on the left side of the display (Fig. 3.7. and 3.8.). When your available no-
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decompression time decreases below 200 minutes, the rst (lowest) bar graph seg-
ment appears. As your body absorbs more nitrogen, more segments start to appear.
White Zone - As a safety precaution Suunto recommends you should maintain the
no-decompression bar graph within the green zone. Segments start to appear when
the available no-decompression time decreases below 100, 80, 60, 50, 40, 30 and
20 minutes.
Yellow Zone - As the bars reach the yellow zone, your no-decompression stop time is
less than 10 or 5 minutes and you are getting very close to no-decompression limits.
At this point, you should start your ascent towards the surface.
Red Zone - As all of the bars appear (red zone), your no-decompression stop time
has become zero and your dive has become a decompression stop dive (for more
information see section 3.3.5. “Decompression dives”).
3.3.4. Ascent Rate Indicator
The ascent rate is shown graphically along the right side of the display as follows:
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TABLE 3.2. ASCENT RATE INDICATOR
Ascent Rate Indicator The equivalent ascent speed Example in Fig.
No segments Normal, full battery. 3.7
One segment 4 - 6 m/min [13 - 20 ft/min] 3.8
Two segments 6 - 8 m/min [20 - 26 ft/min] 3.9
Three segments 8 - 10 m/min [26 - 33 ft/min] 3.10
Four segments 10 - 12 m/min [33 - 39 ft/min] 3.11
Four segments, the
SLOW segment, blinking
depth reading, the STOP
sign and an audible alarm
Above 12 m/min [39 ft/min] or
continuously above 10 m/min
[33 ft/min]
3.12
When the maximum allowed ascent rate is exceeded, the fth SLOW warning seg-
ment and the STOP sign appear and the depth reading starts to blink, indicating that
the maximum ascent rate has been exceeded continuously or that the current ascent
rate is signicantly above the allowed rate.
Whenever the SLOW warning segment and the STOP sign appear (Fig. 3.12.), you
should immediately slow down your ascent. When you reach the depth zone between
6 m to 3 m [20 ft to 10 ft] the STOP and CEILING depth labels will advise you to make
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a Mandatory Safety Stop. Wait until the warning disappears (Fig. 3.13.). You should
not ascend shallower than 3 m [10 ft] with the Mandatory Safety Stop warning on.
m
NO DEC TIME
T
C
B
ºC
MAX
DIVE TIME
DIVE TIME
T
C
B
°
C
m
MAX
NO DEC TIME
BEEP
BEEP
BEEP
STOP
DIVE TIME
T
C
B
ºC
m
CEILING
STOP
MAX
TIME
Fig. 3.11. Ascent Rate
Indicator. Maximum
allowed ascent rate. Four
segments.
Fig. 3.12. Ascent Rate
Indicator. Blinking depth
reading, SLOW and four
segments are shown together
with an audible alarm: ascent
rate is more than 10 m/min
[33 ft/min]. This is a caution to
slow down! STOP sign means
that you are advised to make a
Mandatory Safety Stop when
you reach a depth of 6 m [20 ft].
Fig. 3.13. A Mandatory
Safety Stop. You are
advised to make a
Mandatory Safety Stop in
the depth zone between
6 m and 3 m [20 ft and
10 ft]. Pressing TIME
button shows alternative
display.
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WARNING DONOTEXCEEDTHEMAXIMUMASCENTRATE!Rapidascents
increasetheriskofinjury.YoushouldalwaysmaketheMandatory
and Recommended Safety Stops after you have exceeded the
maximumrecommendedascentrate.IfthisMandatorySafetyStop
isnotcompletedthedecompressionmodelwillpenalizeyournext
dive(s).
3.3.5. Decompression dives
When your NO DEC TIME becomes zero, your dive becomes a decompression stop
dive, i.e. you must perform one or several decompression stops on your way to the
surface. The NO DEC TIME on your display will be replaced by an ASC TIME nota-
tion and the maximum depth will be replaced by a CEILING notation and an upward
pointing arrow (Fig. 3.15.).
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 xed depths, the dive computer lets you
to decompress within a range of depths (Continuous Decompression).
The ascent time (ASC TIME) is the minimum amount of time needed to reach the
surface in a decompression dive. It includes:
• the time needed to ascend to the ceiling at an ascent rate of 10 m/min [33 ft/min]
plus
37
• the time needed at the ceiling. The ceiling is the shallowest depth to which you
should ascend
plus
• the time needed at the Mandatory Safety Stop (if any)
plus
• the 3 minute Recommended Safety Stop
plus
• the time needed to reach the surface after the ceiling and safety stops have been
completed.
WARNING YOUR ACTUAL ASCENT TIME MAY BE LONGER THAN
DISPLAYEDBYTHEINSTRUMENT!Theascenttimewillincrease
ifyou:
• remain at depth
• 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.
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T
C
B
ºC
m
STOP
CEILING
DIVE TIME
BEEP
BEEP
BEEP
DIVE TIME
T
C
B
º
C
m
ASC TIME
CEILING
DIVE TIME
T
C
B
º
C
m
CEILING
ASC TIME
Fig. 3.14. Violated
Mandatory Safety Stop.
Downward pointing arrow
and an audible alarm
indicate you should
descend to ceiling zone.
Fig. 3.15. Decompression
dive, below oor. Upward
pointing arrow, blinking
ASC TIME label and an
audible alarm tell you to
ascend. Minimum total
ascent time including
safety stop is 7 minutes.
Ceiling is at 3 m [10 ft].
Fig. 3.16. Decompression
dive, above oor. Upward
pointing arrow has
disappeared and ASC
TIME label has stopped
blinking, which means
that you are in the
decompression range.
CEILING, CEILING ZONE, FLOOR AND DECOMPRESSION RANGE
When in decompression, it is important that you understand the meaning of ceiling,
oor, and decompression range (Fig. 3.19.):
• The ceiling is the shallowest depth to which you should ascend when in decom-
pression. 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.
39
• The oor is the deepest depth at which the decompression stop time will not
increase. Decompression will start when you pass this depth during your ascent.
• The decompression range is the depth range between the ceiling and oor.
Within this range, decompression takes place. However, it is important to remem-
ber that the decompression will be very slow at, or close to, the oor.
The depth of the ceiling and oor will depend on your dive prole. The ceiling depth
will be fairly shallow when you enter the decompression mode, but if you remain at
depth, it will move downward and the ascent time will increase. Likewise, the oor and
ceiling may change upwards while you are decompressing.
When conditions are rough, it may be difcult to maintain a constant depth near the
surface. In this case it will be more manageable to maintain an additional distance
below the ceiling, to make sure that the waves do not lift you above the ceiling. Suunto
recommends that decompression takes place deeper than 4 m [13 ft], even if the
indicated ceiling is shallower.
NOTE Itwilltakemoretimeandmoreairtodecompressbelowtheceiling
thanattheceiling.
WARNING NEVERASCENDABOVETHECEILING!Youmustnotascendabove
theceilingduringyourdecompression.Inordertoavoiddoingsoby
accident,youshouldstaysomewhatbelowtheceiling.
40
DISPLAY BELOW THE FLOOR
The blinking ASC TIME and an upward pointing arrow indicate that you are below
the oor (Fig. 3.15.). You should start your ascent immediately. The ceiling depth is
shown on the right top corner and the minimum total ascent time on the right side of
the center window.
DISPLAY ABOVE THE FLOOR
When you ascend above the oor, the ASC TIME display stops blinking and the upward
pointing arrow disappears (Fig. 3.16.). Decompression will now begin, but is very slow.
You should therefore continue your ascent.
DISPLAY AT THE CEILING ZONE
When you reach the ceiling zone, the display will show you two arrows pointing at each
other (the “hour glass” icon, Fig 3.17.). Do not ascend above this zone.
During the decompression stop, ASC TIME will count down towards zero. When the
ceiling moves upwards, you can ascend to the new ceiling. You may surface only
after the ASC TIME and CEILING labels have disappeared, which means that the
decompression stop and any Mandatory Safety Stop has been completed. You are
advised, however, to stay until the STOP sign has also gone. This indicates that the
three minute Recommended Safety Stop has also been completed.
DISPLAY ABOVE THE CEILING
If you ascend above the ceiling during a decompression stop, a downward pointing
arrow will appear and a continuous beeping starts (Fig. 3.18.). In addition, an error
41
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, the dive 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 also section 3.8. “Error Conditions”).
DIVE TIME
T
C
B
ºC
m
STOP
CEILING
ASC TIME
MAX
TIME
DIVE TIME
T
C
B
º
C
m
STOP
CEILING
ASC TIME
BEEP
BEEP
BEEP ...
FLOOR
3 m / 10 ft
6 m / 18 ft
CEILING
Fig. 3.17. Decompression
dive, at ceiling zone. Two
arrows point at each other
(“hour glass”). You are in
the optimum ceiling zone
at 3.5 m [11 ft] and your
minimum ascent time is
5 minutes. Pressing TIME
button activates alternative
display.
Fig. 3.18. Decompression
dive, above ceiling.
Note downward pointing
arrow, Er warning and
an audible alarm. You
should immediately (within
3 minutes) descend to or
below ceiling.
Fig. 3.19. Ceiling and Floor
Zones. The Recommended
and Manadatory Safety
Stop zone lies between 6 m
and 3 m [20 ft and 10 ft].
42
3.4. DIVING IN NITROX MODE
3.4.1. Before Diving
The ZOOP can be set for diving with standard air only (Air mode) or it can be set for
diving with Enriched Air Nitrox (Nitrox mode). If you are educated for nitrox diving
and you plan to make nitrox dives, it is recommended that you set the dive computer
permanently to its NITROX Mode. The Nitrox mode can be enabled by accessing
MODE-SET-MODEL (see chapter 4.2. “Set Modes”).
If set to Nitrox mode, the correct oxygen percentage of the gas in your cylinder must
always be entered into the computer to ensure correct nitrogen and oxygen calculations.
The dive computer adjusts its mathematical nitrogen and oxygen calculation models
according to the entered O
2
% and PO
2
values. Calculations based on Nitrox use result
in longer no-decompression times and shallower maximum depths than diving with
air. When the dive computer is set in Nitrox mode the Dive Planning modes calculates
with the O
2
% and PO
2
values that are currently in the computer.
WARNING DONOTDIVEWITHACYLINDEROFENRICHEDAIRIFYOUHAVE
NOTPERSONALLYVERIFIEDITSCONTENTSANDENTERED
THEANALYSISVALUEINTOYOURDIVECOMPUTER!Failure
toverifycylindercontentsandentertheappropriateO
2
%intoyour
divecomputerwillresultinincorrectdiveplanninginformation.
WARNING Thedivecomputerwillnotacceptfractionalpercentagevaluesof
oxygenconcentration.Donotroundupfractionalpercentages.For
43
example,31.8%oxygenshouldbeenteredas31%.Roundingup
willcausenitrogenpercentagestobeunderstatedand willaffect
decompressioncalculations.Ifthereisadesiretoadjustthecom-
putertoprovidemoreconservativecalculations,usethepersonal
adjustmentfeaturetoaffectdecompressioncalculationsorreduce
thePO
2
settingtoaffectoxygenexposureaccordingtotheentered
O
2
%andPO
2
values.
NOTE Asasafetyprecautiontheoxygencalculationsinthecomputerare
madewithanoxygenpercentageof1%+setO
2
%.
DEFAULT NITROX SETTINGS
In the NITROX Mode, when set to standard air (21% O
2
), the instrument can be used
as an air dive computer. It remains in this air mode until the O
2
% setting is adjusted
to any other percentage of oxygen (22% - 50%).
NOTE Thecomputerwillautomaticallyreverttotheair(21%O
2
)setting
whenanewdiveseriesisstarted,ifitisnotsettoanyothermix
duringthelasttwohours.Whentheoxygenpercentageissetfor
air,thecomputerwillretainthissetting.
Manually entered values for oxygen percentage are retained for about two hours after
the setting if a dive series has not started. In case a dive series is started, the set
value is retained until a new dive series is started or a new value is entered manually.
44
The default setting for maximum oxygen partial pressure is 1.4 bar, however you are
able to set it between the range of 1.2 - 1.6 bar.
3.4.2. Oxygen Displays
If set to Nitrox mode the NITROX display, with all labeled oxygen information and the
label NITROX, is shown after activation, and before the Dive Planning Mode. The
Nitrox display shows (Fig. 3.20.):
• the oxygen percentage, labeled with O
2
%, is shown in the left side of the center
window
• the set oxygen partial pressure limit, labeled with PO
2
, is shown in the upper right
display
• the maximum allowed depth based on the set oxygen percentage and partial
pressure limit
• the current oxygen toxicity exposure shown with an Oxygen Limit Fraction (OLF)
bar graph along the left side of the display (instead of the CBT).
In Dive mode, the oxygen percentage labeled with O
2
% and the current oxygen toxicity
exposure shown with an Oxygen Limit Fraction (OLF) bar graph are shown (Fig. 3.21.
and Fig. 3.22.). During a dive, the oxygen partial pressure, labeled with PO
2
, is also
shown instead of the maximum depth in the upper right display, if the partial pressure
is greater than 1.4 bar or the set value (Fig. 3.23.).
By pressing the TIME button during a nitrox dive, the alternative display appears,
which includes (Fig. 3.24.):
45
• current time
• Consumed Bottom Time
• maximum depth (during decompression stop dive).
After ve seconds the display will automatically revert to the original display.
PO2
O2%
OLF
m
ºC
TIME
DIVE
m
OLF
O2%
m
NO DEC TIME
ºC
MAX
DIVE TIME
O2%
OLF
Fig. 3.20. Nitrox display.
Maximum depth based on
set O
2
% (21%) and PO
2
(1.4 bar) is 54.1 m [177 ft].
Fig. 3.21. Surface display
in the Nitrox mode.
Fig. 3.22. Diving in Nitrox
mode. The O
2
% is set to
32%.
46
ºC
TIME
DIVE
O2%
m
NO DEC TIME
OLF
PO2
BEEP
BEEP
BEEP ...
TIME
MAX
ºC
O2%
m
NO DEC TIME
T
C
B
m
NO DEC TIME
ºC
MAX
DIVE TIME
O2%
OLF
Fig. 3.23. Oxygen
partial pressure and OLF
displays. There is an
audible alarm as oxygen
partial pressure is greater
than 1.4 bar or set value,
and/or the OLF has
reached 80% limit.
Fig. 3.24. Alternative
display. Pressing TIME
button displays current
time, maximum depth,
temperature, CBT and
O
2
%,
Fig. 3.25. The lowest bar
graph blinks to indicate
that the OLF value shown
relates to OTU.
3.4.3. Oxygen Limit Fraction (OLF)
In addition to tracking the diver’s exposure to nitrogen, the instrument tracks the
exposure to oxygen, if set to Nitrox mode. These calculations are treated as entirely
separate functions.
The dive computer calculates separately for Central Nervous System oxygen toxicity
(CNS) and Pulmonary Oxygen toxicity, the latter measured by the addition of Oxygen
Toxicity Units (OTU). Both fractions are scaled so that the maximum tolerated exposure
for each is expressed as 100%.
47
The Oxygen Limit Fraction (OLF) has 11 segments, each representing 10%. The
OLF bar graph displays only the value of the higher of the two calculations. When
the OTU value meets and exceeds the CNS value then in addition to displaying its
percentage the lowest segment blinks to indicate that the value shown relates to OTU
(Fig. 3.25.). The oxygen toxicity calculations are based on the factors listed in section
6.3. “Oxygen Exposure”.
3.5. AT THE SURFACE
3.5.1. Surface Interval
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. 3.26.):
• maximum depth of last dive in meters [ft]
• present depth in meters [ft]
• no-ying warning indicated by an airplane icon (Table 3.3)
• Altitude Adjustment setting
• Personal Adjustment setting
• Diver attention symbol indicates surface interval time should be prolonged
(Table 3.3)
• STOP label for 5 min, if the Mandatory Safety Stop was violated
• Er, if the decompression ceiling was violated (= Error Mode) (Fig. 3.29, Table 3.3)
• the current temperature with °C for Centigrade [or °F for Fahrenheit]
• dive time of last dive in minutes, shown as DIVE TIME.
48
Or when the TIME button is pressed:
• the current time, shown as TIME instead of the DIVE TIME
• the surface time in hours and minutes (separated by a colon), telling the duration
of the present surface interval (Fig. 3.27.)
• the desaturation/no-ying time in hours and minutes is shown next to the airplane
in the center window of the display (Fig. 3.28.).
If set to Nitrox mode, the following information will also be shown:
• the oxygen percentage labeled with O
2
% is shown on the left side of the center
window
• the current oxygen toxicity exposure shown with an Oxygen Limit Fraction (OLF)
bar graph along the left side of the display.
3.5.2. Dive Numbering
Several repetitive dives are considered to belong to the same repetitive dive series
when the dive computer has not counted the no-ying time to zero. Within each series,
the dives are given individual numbers. The rst dive of the series will be numbered
as DIVE 1, the second as DIVE 2, the third as DIVE 3, etc.
49
MAX
ºC
TIME
DIVE
m
NO
TIME
SURF
MAX
ºC
TIME
m
NO
TIME
SURF
MAX
ºC
TIME
m
NO
Fig. 3.26. Surface display.
You have surfaced from
a 18 minute dive, which
maximum depth was
20.0 m [66 ft]. The present
depth is 0.0 m [0 ft].
Airplane symbol indicates
that you should not y and
Diver Attention Symbol
indicates that you should
prolong your surface
interval time because of
excess micro-bubbles.
Fig. 3.27. Surface interval,
Surface time display.
Pressing TIME button
once will show surface
time display.
Fig. 3.28. Surface interval,
no-ying time. Pressing
TIME button twice will
show no-ying time,
indicated by an airplane
symbol.
50
TABLE 3.3. WARNING SYMBOLS
Symbol on display Indication
Diver Attention Symbol - Extend Surface Interval
Violated Decompression Ceiling
Do Not Fly Symbol
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 will return, the dive number will remain unchanged,
and the dive time will begin where it left off. After 5 minutes on the surface, subsequent
dives are, by denition, repetitive. The dive counter displayed in the Planning Mode
will increment to the next higher number if another dive is made.
3.5.3. Flying After Diving
The no-ying time is shown in the center window next to the airplane image. Flying
or travelling to a higher altitude should be avoided at any time the computer counts
down the no-ying time.
NOTE Theairplanesymbolisnotshownonthestand-bydisplay.Youshould
alwaysactivatethedivecomputerandcheckthattheairplanesymbol
isnotdisplayedpriortoying.
51
The no-ying time is always at least 12 hours or equivalent to the so-called desatura-
tion time (if longer than 12 hours).
In the permanent Error mode the no-ying time is 48 hours.
Divers Alert Network (DAN) recommends the following on no-ying times:
• A minimum surface interval of 12 hours would be required in order to be reason-
ably assured a diver will remain symptom free upon ascent to altitude in a com-
mercial jetliner (altitude up to 2400 m [8000 ft]).
• Divers who plan to make daily, multiple dives for several days, or make dives
that require decompression stops, should take special precautions and wait for
an extended interval beyond 12 hours before ight. Further, the Undersea and
Hyperbaric Medical Society (UHMS) suggests divers using standard air cylinders
and exhibiting no symptoms of decompression illness wait 24 hours after their
last dive to y in an aircraft with cabin pressure up to 2400 m [8000 ft]. The only
two exceptions to this recommendation are:
• If a diver had less than 2 hours total accumulated dive time in the last 48 hours,
then a 12 hour surface interval before ying is recommended.
• Following any dive that required a decompression stop, ying should be delayed
for at least 24 hours, and if possible, for 48 hours.
• Suunto recommends that ying is avoided until all the DAN and UHMS guidelines
and the dive computer wait to y conditions are satised.
52
MAX
ºC
TIME
DIVE
m
NO
Diver Attention Symbol
Violated Decompression Ceiling
Do Not Fly Symbol
Fig. 3.29. Surface
Mode after a violated
decompression dive. Er
symbol indicates that
you have violated the
ceiling for more than three
minutes. You must not dive
again for at least 48 hours.
3.6. AUDIBLE AND VISUAL ALARMS
The dive computer features audible alarms to advise when important limits are ap-
proached or to acknowledge preset alarms.
A short single beep occurs, when:
• the dive computer is activated.
• when the dive computer automatically returns to the TIME mode.
53
Three single beeps with a two second interval occurs, when:
• the no-decompression dive turns into a decompression stop dive. An arrow point-
ing upwards and the blinking ascent warning ASC TIME will appear (Fig. 3.15.).
Continuous beeps for 5 seconds occur, when:
• the maximum allowed ascent rate, 10 m/min [33 ft/min], is exceeded. SLOW and
STOP warnings will appear (Fig. 3.12.).
• the Mandatory Safety Stop ceiling is exceeded. A downward pointing arrow will
appear (Fig. 3.14.).
• the decompression ceiling depth is exceeded. An error warning Er and a down-
ward 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. 3.18.).
You are able to preset alarms before the actual dive. The user programmable alarms
can be set for maximum depth and dive time. The alarms activate when:
• The preset maximum depth is reached
• continuous beep series for 24 seconds or until any button is pressed.
• the maximum depth blinks as long as the present depth value exceeds the ad-
justed value.
• The preset dive time is reached
• continuous beep series for 24 seconds or until any button is pressed.
• the dive time blinks for one minute, if no button is pressed.
54
OXYGEN ALARMS IN NITROX MODE
Three double beeps for 5 seconds occur, when:
• the OLF bar graph reaches 80%. The segments exceeding the 80% limit start to
blink (Fig. 3.23.)
• the OLF bar graph reaches 100%.
The blinking of the segments exceeding 80% will stop, when the OLF is not loading
anymore. At that point the PO
2
is less than 0.5 bar.
Continuous beeps for 3 minutes occur, when:
• the set oxygen partial pressure limit is exceeded. The maximum depth is replaced
with a current blinking PO
2
value. You should immediately ascend above the PO
2
depth limit (Fig. 3.23.).
WARNING WHENTHEOXYGENLIMITFRACTIONINDICATESTHATTHE
MAXIMUM LIMIT IS REACHED, YOU MUST IMMEDIATELY
ASCENDUNTILTHEWARNINGSTOPSBLINKING!Failuretodo
somayleadtoimproperuse,seriousinjuryordeath.
3.7. 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.
55
3.7.1. Altitude Adjustment
When programming the instrument for the correct altitude, you need to select the correct
Altitude Mode according to Table 3.4. The dive computer will adjust its mathematical
model according to the entered altitude mode, giving shorter no-decompression times
at higher altitudes (see Section 6.1. “Operating Principles”, Table 6.1. and 6.2.).
TABLE 3.4. ALTITUDE ADJUSTMENT RANGES
Altitude mode Symbol on display Altitude range
A0
0 - 300 m [0 - 1000 ft]
A1
300 - 1500 m [1000 - 5000 ft]
A2
1500 - 3000 m [5000 - 10000 ft]
The entered Altitude Adjustment Mode is indicated by mountain symbols (A0,
A1 = one mountain, or A2 = two mountains). Section 4.2.4. “ Personal Adjustments”
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.
3.7.2. Personal Adjustment
There are adverse personal factors for DCI which divers can predict in advance and
input into the decompression model. Factors that may affect susceptibility to decom-
56
pression 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 tness 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 ++). Section 4.2.4. “ Personal Adjustments”
describes how the Personal Mode 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 3.5. In ideal conditions, retain the default setting, P0. If conditions are more
difcult or other mentioned factors which tend to increase the possibility of DCI exist,
select P1 or even the most conservative P2. As a result the dive computer adjusts its
mathematical model according to the entered Personal Adjustment Mode, giving shorter
no-decompression times (see section 6.1. “Operating Principles”, Table 6.1 and 6.2).
57
TABLE 3.5. PERSONAL ADJUSTMENT RANGES
Personal
mode
Symbol on
display
Condition Desired tables
P0
Ideal condition Default
P1
Some mentioned factors or
conditions exist
Progressively more
conservative
P2
Several mentioned factors or
conditions exist
3.8. ERROR CONDITIONS
The dive computer has warning indicators that alert the user to react to certain situ-
ations that would signicantly increase 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 understand and operate the dive computer 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 Er warning 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.
58
Once in the permanent Error Mode only the ER warning is shown in the center window.
The dive computer will not show times for ascent or stops. However, all the other dis-
plays 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.
After surfacing, you should not dive for a minimum of 48 hours. During the permanent
Error Mode, the Er text will be displayed in the center window and the Planning Mode
will be disabled.
59
4. MENU BASED MODES
To make yourself familiar with the menu based functions, please use your Quick
Reference Guide supplied with the ZOOP together with the information in this chapter.
The main menu based functions are grouped under 1) Memory and 2) Setting modes.
The use of the menu based functions
1. Activate the menu based modes by pressing once the SMART (MODE) button
in the Dive Mode (Fig. 4.1.).
2. Scroll the mode options by pressing the arrow up/down buttons. When scroll-
ing the options, the label and an equivalent number are shown on the display
(Fig. 4.2. – 4.3.).
3. Press the SMART (Select) button once to select the desired option.
4. Scroll the submode options by pressing the arrow up/down buttons. When
scrolling the options, the label and an equivalent number are shown on the
display.
5. Select the desired option by pressing once the SMART (Select) button. Repeat
the procedure, if there are more submodes.
6. Depending on the mode, you are now able to have a look at the memories or
make desired settings (use the the arrow up/down buttons). The SMART button
is used to Quit or to conrm the settings (OK).
If you do not press any of the buttons for 5 minutes while in a Menu based mode, the
instrument beeps and returns to the timekeeping display.
60
EXIT / QUIT!
By pressing the SMART button for more than 1 second, any menu based function
or submode can be quit and the dive computer will return directly to the Dive Mode.
OPTIONS
QUIT
SELECTSELECTSELECT SELECT
Fig. 4.1. Main menu
based Mode options.
[2 MODE].
Fig. 4.2. Memory option.
[1 MEMORY].
Fig. 4.3. Set option.
[2 SET].
THE LIST OF THE MENU BASED MODES
1. MEMORY FUNCTIONS [1 MEMORY]
1. Logbook and Dive Prole Memory [1 LOGBOOK]
2. Dive History Memory [2 HISTORY]
3. PC Settings [3 PC SET]
2. SET MODES [2 SET]
1. Air or Nitrox Oxygen settings [1 MODEL]
2. Set Alarms [2 SET ALMS]
1. Maximum depth alarm setting
2. Dive time alarm setting
61
3. Set time and date [3 SET TIME]
1. Time display, time, date and year settings
4. Personal Adjustments [4 SET ADJ]
1. Altitude adjustment
2. Personal adjustment
3. Dive computer units setting
NOTE Themenubasedmodescannotbeactivateduntil5minutesafter
thedive.
4.1. MEMORY FUNCTIONS [1 MEMORY]
The memory options (Fig. 4.4.) for this dive computer include the combined Logbook
and Dive Prole Memory (Fig. 4.5. – 4.11.), Dive History Memory (Fig. 4.12. – 4.13.).
The dive entry time and date is registered in the Logbook memory. Always check be-
fore diving that the time and date are correctly set, especially after traveling between
different time zones.
62
OPTIONS
QUIT
SELECT
DIVE
TIME
page 1
SELECT
Fig. 4.4. Memory options.
[3 MEMORY].
Fig. 4.5. Logbook option.
[1 LOGBOOK].
Fig. 4.6. Logbook, page I.
Scroll different pages of
specic dive.
DIVE
MAX
TIMEDIVE
page 2
QUIT
ºC
O2%
OLF
STOP
ASC TIME
DIVEDIVE
AVG
TIME
SURF
page 3
QUIT
DIVE
TIMEDIVE
page 4
QUIT
Fig. 4.7. Logbook, page II.
Main dive related data.
Fig. 4.8. Logbook, page III.
Surface interval time and
average depth
Fig. 4.9. Logbook, page IV.
Prole of specic dive.
63
4.1.1. Logbook and Dive Prole Memory [1 LOGBOOK]
This instrument has a very sophisticated high capacity Logbook and Prole Memory,
with a data recording interval of 30 seconds. Dives shorter than the recording interval
are not registered.
To enter the Logbook Memory Mode select MODE- MEMORY- LOGBOOK.
For each dive there are four pages of logbook dive information. Use the scroll but-
tons to scroll the display between Logbook pages I, II, III and IV. The data of the most
recent dive is shown rst.
The logbook dives can be scrolled through displaying only the rst page of each dive,
or scrolling through the 4 different pages of a dive.
When at the rst page of a dive use the MODE button to change the scroll sequence.
When the arrow icon is next to the Mode button the scroll button will scroll through
the rst page only of each dive.
When Select is displayed next to the mode button the scroll buttons will scroll through
the four pages of the selected dive.
The END text is displayed between the oldest and most recent dive. (Fig. 4.11.)
Note that chronological sequence in the logbook is determined by the date, not by
the dive number.
64
The following information will be shown on four pages:
Page I, main display (Fig. 4.6.)
• dive number in the dive series
• dive entry time and date.
Page II (Fig. 4.7.)
• dive number in the dive series
• maximum depth
NOTE Duetolowerresolution,thereadingmaydifferfromthemaximum
depthreadingoftheDiveHistoryupto0.3m[1ft].)
• total dive time
• temperature at the maximum depth
• Altitude Adjustment setting
• Personal Adjustment setting
• SLOW label, if the diver has violated the maximum ascent rate
• STOP label, if the Mandatory Safety Stop was violated
• ASC TIME label, if the dive was a decompression stop dive
• Diver attention symbol, if the symbol was displayed when dive was started
• downward pointing arrow, if the ceiling was violated
• oxygen percentage
• maximum OLF during the dive (only in Nitrox mode).
65
Page III (Fig. 4.8.)
• dive number in the dive series
• average depth
• surface interval time before the dive
Page IV (Fig. 4.9.)
• dive number in the dive series
• the prole of the dive, automatic scrolling during which:
• logbook symbol blinks at the point when the user has pressed the PLAN button
for Bookmark
• O
2
% during the dive prole
• blinking SLOW label when registered
• blinking ASC TIME label when the dive became a decompression dive.
Press the SMART (Select) button once to change the scroll buttons to scroll the dif-
ferent dives forward and backward (Fig. 4.10.). Press the SMART (>Select) button
again to change function of the scroll buttons back to scroll the different pages of the
selected dive. When searching the dives, only the page 1 is shown. The END text is
displayed between the oldest and the most recent dive (Fig. 4.11.).
The memory will retain approximately the last 50 hours of dive time. After that, when
new dives are added, the oldest dives are deleted. The contents of the memory will
remain when the battery is changed (assuming that the replacement has been done
according to the instructions).
66
DIVE
TIME
SELECT
QUIT
Fig. 4.10. Logbook,
page I. Press SMART
(Select) button once to
be able to scroll between
different dives.
Fig. 4.11. Logbook, end
of the memory. END text is
displayed between oldest
and the most recent dive.
DIVE PROFILE MEMORY [PROF]
The scrolling of the prole will start automatically when the Logbook page IV (PROF)
is entered.
With the default setting, the dive prole is recorded and displayed in 30-second incre-
ments with each display being shown for about three seconds. The depths shown are
the maximum values of each interval.
Pressing any button stops the scrolling of the prole.
67
NOTE Severalrepetitivedivesareconsideredtobelongtothesamerepeti-
tivediveseriesiftheno-yingtimehasnotended.
See ”Dive Numbering” in section 3.5.2. for further information.
4.1.2. Dive History Memory [2 HISTORY]
The Dive History is a summary of all the dives recorded by the dive computer. To
enter the Dive History Memory Mode select MODE- MEMORY- HISTORY (Fig. 4.12.).
The following information will be shown on the display (Fig. 4.13.):
• the maximum depth ever reached
• the total accumulated dive time in hours
• the total number of dives.
The Dive History Memory can hold a maximum of 999 dives and 999 diving hours.
When these maximum values are reached, the counters will start again from zero.
4.1.3. Data Transfer and PC-Interface [3 PC-SET]
The instrument can be connected to a personal computer (PC), using the optional
PC-Interface and its software. With the PC-Interface, dive data from the dive computer
can be downloaded to a PC. The PC-Interface software can be used for educational
and demonstration purposes, for planning dives, and for keeping a complete record
of your dive history with the instrument. Complete Logbook data can also be included.
Paper copies of your dive log and proles can then easily be printed.
68
To enter the Data Transfer select MODE- 1 MEMORY- 3 PC - SET (Fig.4.14)
The data transfer is carried out using the connector on the bottom of the unit.
The following data is transferred to the PC:
• depth prole of the dive
• dive time
• surface interval time
• dive number
• Altitude and Personal adjustment settings
• oxygen percentage setting and maximum OLF (in NITROX Mode)
• tissue calculation data
• temperature at the maximum depth, beginning of the dive, and end of the dive
• dive entry time (year, month, day and time)
• additional dive information (e.g. SLOW and Mandatory Safety Stop violations,
Dive Attention Mark, Bookmark, Surfaced Mark, Decompression Mark, Ceiling
Error Mark)
• identity number of the dive computer
• personal information.
It is also possible to manually add comments and other personal information to the PC
based dive data les. The PC-Interface package comes complete with the interface
unit, the software, and an instruction and getting started guide.
69
NOTE WhileintheDataTransferMode,theconnector/watercontactsare
usedonlyforthedatatransfer.TheDiveModeISNOTautomatically
activatedifthecontactsaresubmerged.
After you have nished the data transfer, press the SMART (Quit) to exit Data Transfer
Mode [PC-SET]. If no button is operated or no data is transferred within 5 minutes, the
instrument beeps and returns to the timekeeping display automatically.
SELECT
MAX
TIME
DIVE
DIVE
QUIT
SELECT
Fig. 4.12. Dive
History Memory Mode.
[2 HISTORY].
Fig. 4.13. Dive History
information. Total number
of dives, dive hours and
maximum depth.
Fig. 4.14. Data Transfer
mode. [3 PC SET].
4.2. SET MODES [2 SET]
The Set Mode (Fig. 4.15.) is divided into four submodes: dive computer model setting,
alarm settings, time setting and personal adjustments.
70
4.2.1. Dive Computer Model Settings [1 SET MODEL]
In the Model Setting mode the ZOOP can be set to function in Air or Nitrox model. To
enter the model settings select MODE- SET- MODEL (Fig. 4.16). Select AIR if diving
with standard air and select NITROX if diving with oxygen enriched air.
4.2.1.1. Nitrox Oxygen Settings
The correct oxygen percentage of the gas in your cylinder must always be entered
into the computer to ensure correct nitrogen and oxygen calculations. Also the oxygen
partial pressure limit must be set. In the Nitrox Setting mode the equivalent allowed
maximum depth based on the chosen values will also be displayed.
To enter the Nitrox/Oxygen Setting Mode select MODE- SET- MODEL- NITROX. The
default oxygen percentage (O
2
%) setting is 21% (air) and oxygen partial pressure
(PO
2
) setting 1.4 bar (Fig. 4.17.).
NOTE! The Nitrox settings will revert to default settings 21% (air) and PO
2
1.4 bar
after approximately 2 hours.
4.2.2. Alarm settings [2 SET ALMS]
In the alarm settings you can set a dive time alarm and a maximum depth alarm. To
enter Alarm settings select MODE - SET - SET ALARMS (Fig. 4.18).
71
QUIT
OPTIONS
SELECT
O2%
PO2
m
OK
Fig. 4.15. Setting Options.
[4 SET].
Fig. 4.16. Set Model mode. Fig. 4.17. Setting Nitrox
parameters, Oxygen
percentage is 32%,
oxygen partial pressure
limit is 1.4 bar. The
equivalent maximum
depth is displayed as
32.8 m [107 ft]. Press
scroll buttons to change
oxygen percentage and to
set oxygen partial setting
value. Accept settings by
pressing MODE (OK).
72
SELECT
OK
TIMEDIVE
MAX
OK
m
Fig. 4.18. Set Alarms
Mode.
Fig. 4.19. Setting Dive
Time Alarm. Press scroll
buttons to change alarm
on/off and to set dive time
value.
Fig. 4.20. Setting
Maximum Depth Alarm.
Press scroll buttons to
change alarm on/off and to
set maximum depth value.
4.2.2.1. Dive Time Alarm Setting
The instrument has one Dive Time Alarm Setting, which can be used for several
purposes to add to your diving safety. The alarm can be set, for example, to your
planned bottom time.
Set the Dive Time alarm ON or OFF and the alarm time from 1 to 999 minutes.
(Fig. 4.19).
73
4.2.2.2. Maximum Depth Alarm Setting
You can set one depth alarm in the dive computer. The depth alarm is set to 40 m
[131 ft] at the factory, but you are able to adjust it according your personal preference or
switch it off. The depth range can be set from 3.0 m to 100 m [9 ft to 328 ft] (Fig. 4.20.).
SELECT
OK
OK
Fig. 4.21. Time Setting
Mode.
Fig. 4.22. Adjusting Time. Fig. 4.23. Adjusting Date.
4.2.3. Setting Time and date [3 SET TIME]
To enter the Time Setting Mode select MODE- SET- SET TIME (Fig. 4.21.)
After entering this mode you are able to select between 12 h and 24 hour time formats
and set the correct time by using the SMART (MODE) and scroll buttons (Fig. 4.22.).
After this you are able to set the correct year, month and day in this order (Fig. 4.23.).
74
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.
4.2.4. Personal adjustments [4 SET ADJ]
To enter the Personal adjustments mode select MODE- SET- SET ADJ (Fig. 4.24).
The adjustments are altitude, personal and dive computer units
The current Altitude and Personal Adjustment modes are shown when diving and at the
surface. If the mode does not match the altitude or personal conditions (see section 3.7.
“High Altitude Dives and Personal Adjustment”), it is imperative that you enter the correct
selection before diving. Use the Altitude Adjustment to select the correct altitude mode
(Fig. 4.25.) Use the Personal Adjustment to add an extra level of conservatism
(Fig. 4.26.).
Use the units adjustment to choose choose between metric and imperial units
(Fig. 4.27.).
75
SELECTSELECT
SELECT
OK
OK
Fig. 4.24. Adjustment
Setting Mode.
Fig. 4.25. Setting Altitude
adjustment. Press scroll
buttons to change altitude
mode.
Fig. 4.26. Setting
Personal adjustment.
Press scroll buttons to
change personal mode.
ºC
º
F
m
ft
OK
Fig. 4.27. Setting Metric/
Imperial units.
76
5. CARE AND MAINTENANCE OF MY SUUNTO DIVING
COMPUTER
The SUUNTO dive computer is a sophisticated precision instrument. Although it is
designed to withstand the rigors of scuba diving, you must treat it with the same proper
care and caution as any other precision instrument.
• WATER CONTACTS AND PUSH BUTTONS
Contamination or dirt on the water contacts/connector or push buttons may
prevent the automatic activation of the Dive Mode and cause problems during the
data transfer. Therefore, it is important that the water contacts and push buttons
are kept clean. If the water contacts are active (AC text remains on display) or the
Dive Mode activates on its own, the reason for this is probably contamination or
invisible marine growth, which may create an electric current between the con-
tacts. It is important that the dive computer is carefully washed in fresh water after
the day’s diving is completed. The contacts can be cleaned with fresh water and,
if necessary, a mild detergent and a soft brush. Sometimes it might be necessary
to remove the instrument from the protective boot for cleaning.
• CARE OF YOUR DIVE COMPUTER
• NEVER try to open the case of the dive computer.
• Have your dive computer serviced every two years or after 200 dives (which-
ever comes rst) by an authorized dealer or distributor. This service will include
a general operational check, replacement of the battery, and water resistance
check. The service requires special tools and training. Therefore, it is advisable
77
to contact an authorized SUUNTO dealer or distributor for the biennial service.
Do not attempt to do any servicing that you are not sure of.
• Should moisture appear inside the case, immediately have the instrument
checked by your SUUNTO dealer or distributor.
• Should you detect scratches, cracks or other such aws on the display that
may impair its durability, immediately have it replaced by your SUUNTO dealer
or distributor.
• Wash and rinse the unit in fresh water after every use.
• Protect the unit from shock, extreme heat, direct sunlight, and chemical attack.
The dive computer cannot withstand the impact of heavy objects like scuba cyl-
inders, nor chemicals like gasoline, cleaning solvents, aerosol sprays, adhesive
agents, paint, acetone, alcohol, etc. Chemical reactions with such agents will
damage the seals, case and nish.
• Store your dive computer in a dry place when you are not using it.
• The dive computer will display a battery symbol as a warning when the power
gets too low. When this happens, the instrument should not be used until the
battery has been replaced.
• Do not fasten the strap of your dive computer too tightly. You should be able to
insert your nger between the strap and your wrist. Shorten the strap by cutting
it if you do not expect to need the extra length.
• MAINTENANCE
The instrument should be soaked, thoroughly rinsed with fresh water, then dried
with a soft towel after each dive. Make sure that all salt crystals and sand parti-
cles have been ushed out. Check the display for possible moisture or water. DO
NOT use the dive computer if you detect any moisture or water inside. Contact an
authorized Suunto dealer for battery replacement or other service.
78
CAUTION
• Do not use compressed air to blow water off the unit.
• Do not use solvents or other cleaning uids that might cause damage.
• Do not test or use the dive computer in pressurized air.
• WATER RESISTANCE INSPECTION
The water resistance of the unit must be checked after replacing 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 nd moisture
inside your dive computer, 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 dive computer
unless the instructions of this manual are carefully followed. In the event of a
leak, immediately take the dive computer to an authorized SUUNTO dealer or
distributor.
sda
For more information on service & warranty, please refer to FAQs on www.suunto.com.
5.1. BATTERY REPLACEMENT
NOTE Itisadvisableto contactanauthorizedSuuntodealerforbattery
replacement.Itisimperativethatthechangeismadeinaproper
mannertoavoidanyleakageofwaterintothebatterycompartment
orcomputer.
79
CAUTION Whenthebatteryischangedallnitrogenandoxygenuptakedata
islost.Therefore,theno-yingtimeshownbythecomputershould
havereachedzerooryoumustwaitfor48hoursorpreferablyeven
100hoursbetweendivesbeforeyoumaydiveagain.
All history and prole data, as well as the altitude, personal and alarm settings, will
remain in the dive computer memory after the battery change. However, the clock
time and time alarm setting is lost. In the NITROX Mode the Nitrox settings are also
reverted back to default settings (21 % O
2
, 1.4 bar PO
2
).
When working with the battery compartment, cleanliness is extremely important. Even
the smallest dirt particles may cause a leakage when you dive.
BATTERY KIT
The battery kit includes a 3.0 V coin type lithium cell battery and a lubricated O-ring.
When handling the battery do not make contact with both of the poles at the same
time. Do not touch the surfaces of the battery with your bare ngers.
TOOLS REQUIRED
• A at 1.5 mm screwdriver or a special tool for spring bars (K5857).
• Soft cloth for cleaning.
• Needlenose pliers or large screwdriver for turning securing ring.
80
BATTERY REPLACEMENT
The battery and the buzzer are located in the back of the instrument in a separate
compartment, the parts of which are shown in Fig. 5.1. To change the battery, follow
the procedure below:
1. Remove the computer from the console or boot.
Wrist model:
• Disassemble the shorter part of the strap with a at 1.5 mm screwdriver or a
special tool for spring bars. The longer part of the strap may stay on but removing
it may ease the work later on.
Console model:
1. Remove the dive computer from the console according the instructions of the
console.
2. Thoroughly rinse and dry the computer.
3. Open the securing ring of the battery compartment lid by pushing it down and
rotating it clockwise. You may use a pointed nose pliers or a small screwdriver
as an aid in the rotating. Put the pliers ends into the holes of the securing ring or
the screwdriver onto the side of the right tooth on the ring (Fig. 5.2) and turn the
ring clockwise. Care should be taken not to damage any of the parts.
4. Remove the ring.
5. Carefully remove the lid with the beeper attached to it. The lid can be removed
by pressing with your nger on the outermost edge of the lid while at the same
time pulling with your nail at the opposite side. Do not use sharp metal objects
as they might damage the O-ring or the sealing surfaces.
81
6. Remove the O-ring and the battery retainer.
7. Carefully remove the battery. Do not damage the electrical contacts or the seal-
ing surface. Check for any traces of ooding, particularly between the beeper
and the lid, or for any other damage. In case of a leak or any other damage,
bring the dive computer to an authorized SUUNTO dealer or distributor for
check and repair.
8. Check the condition of the O-ring; a defective O-ring may indicate sealing or
other problems. Dispose the old O-ring, even if it seems to be in good condition.
9. Check that the battery compartment, battery holder and lid are clean. Clean with
soft cloth if necessary.
10. Gently insert the new battery in the battery compartment. Check the polarity of
the battery: the “-” mark should point toward the bottom of the compartment and
the “+” mark upwards.
11. Reinstall the battery retainer in its correct position.
12. Check that the new lubricated O-ring is in good condition. Put it in the right posi-
tion on the battery compartment. Be very careful not to get any dirt on the o-ring
or its sealing surfaces.
13. Carefully press the lid onto the battery compartment with your thumb. It is better
to press down the lid down one side rst, this minimizes entrapped air and it is
thus easier to hold down the lid. Make sure that the O-ring is not at any point
protruding out on the edge.
14. Put your other thumb through the locking ring. Press this thumb rmly against
the lid and release the other one. Make sure that the lid is pressed completely
down!
15. Turn the locking ring counterclockwise with your free thumb and ngers until it
snaps into its locked position.
82
16. The dive computer should now active it’s timekeeping mode and show time
18:00 [6:00 PM] and date SA 01,01. Activate the instrument. Check that:
• All display segments work.
• The low battery warning is off.
• The buzzer beeps and backlight works.
• All the settings are correct. Reset if necessary.
17. Install the dive computer back into the console or boot and reassemble the
strap. The instrument is now ready for use.
Wrist model:
• Assembling into the boot: First insert the longer strap in its hole in the front of the
boot and then the dive computer into its cavity in the boot starting at the back
end. Then snap also the long strap end of the instrument into the boot. Stretch
the boot as needed.
• Assemble the shorter part of the strap. Use the spring bar tool or small screwdriv-
er to compress the spring bars. Make sure that the spring bars get fully seated so
they will not come off their holes.
Console model:
• Ret the dive computer in the console according the instructions of the console.
CAUTION Checkaftertherstdivesforpossiblemoistureunderthetransparent
batterycompartmentlid,indicatingaleak.
83
Complete Strap
(V5841)
Short Strap with buckle
(V5836)
Spring Bar (K5588)
Long Strap (K5592)
Securing Ring (V5844)
Battery Compartment Lid
with buzzer (V5843)
O-Ring (K5664)
Battery Retainer (V5842)
Battery (K5597)
Fig. 5.1. Instrument parts. The code after the name stands for spare part order number.
Fig. 5.2. Opening of the securing ring.
84
6. TECHNICAL DESCRIPTION
6.1. OPERATING PRINCIPLES
NO-DECOMPRESSION LIMITS
The no-decompression limits displayed by the dive computer for the rst dive to a
single depth (see Table 6.1. and Table 6.2.), are slightly more conservative than those
permitted by the U.S. Navy tables.
85
TABLE 6.1. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARIOUS DEPTHS (M) FOR
THE FIRST DIVE OF A SERIES.
Personal Mode / Altitude Mode
Depth
[m]
P0/A0 P0/A1 P0/A2 P1/A0 P1/A1 P1/A2 P2/A0 P2/A1 P2/A2
9 - - 163 130 163 130 96 130 96 75
12 124 89 67 89 67 54 67 54 45
15 72 57 43 57 43 35 43 35 29
18 52 39 30 39 30 25 30 25 21
21 37 29 23 29 23 20 23 20 15
24 29 24 19 24 19 16 19 16 12
27 23 18 15 18 15 12 15 12 9
30 18 14 12 14 12 9 12 9 7
33 13 11 9 11 9 8 9 8 6
36 11 9 8 9 8 6 8 6 5
39 9 8 6 7 6 5 6 5 4
42 7 6 5 6 5 4 5 4 4
45 6 5 5 5 5 4 5 4 3
86
TABLE 6.2. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARIOUS DEPTHS [FT] FOR
THE FIRST DIVE OF A SERIES
Personal Mode / Altitude Mode
Depth
[ft]
P0/A0 P0/A1 P0/A2 P1/A0 P1/A1 P1/A2 P2/A0 P2/A1 P2/A2
30 -- 160 127 160 127 93 127 93 73
40 120 86 65 86 65 53 65 53 43
50 69 56 41 56 41 34 41 34 28
60 50 38 29 38 29 25 29 25 20
70 36 29 23 29 23 20 23 20 15
80 28 23 19 23 19 15 19 15 11
90 22 18 15 18 15 11 15 11 9
100 17 14 11 14 11 9 11 9 7
110 13 11 9 11 9 7 9 7 6
120 10 9 8 9 8 6 8 6 5
130 9 7 6 7 6 5 6 5 4
140 7 6 5 6 5 4 5 4 4
150 6 5 4 5 4 4 4 4 3
87
ALTITUDE DIVING
The atmospheric pressure is lower at high altitudes than at sea level. After traveling
to a higher altitude, the diver will have additional nitrogen in his body, compared to
the equilibrium situation at the original altitude. This “additional” nitrogen is released
gradually in time and equilibrium is reached. It is recommended that you acclimate 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 nitro-
gen 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. If
a surface interval is shorter than 5 minutes, the next dive is treated as a continuation
of the previous dive.
6.2. SUUNTO REDUCED GRADIENT BUBBLE MODEL (RGBM)
The Suunto Reduced Gradient Bubble Model (RGBM) is a modern algorithm for predict-
ing both dissolved and free gas in the tissues and blood of divers. It was developed in
a co-operation between Suunto and Bruce R. Wienke BSc, MSc. PhD. It is based on
both laboratory experiments and diving data, including data from DAN.
88
It is a signicant advance on the classical Haldane models, which do not predict free
gas (microbubbles). The advantage of Suunto RGBM is additional safety through its
ability to adapt to a wide variety of situations. Suunto RGBM addresses a number of
diving circumstances outside the range of just dissolved gas models by:
• Monitoring continuous multiday 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
• Incorporating consistency with real physical laws for gas kinetics.
Suunto RGBM Adaptive decompression
The SUUNTO RGBM algorithm adapts its predictions of both the effects of micro-bubble
build-up and adverse dive proles 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
micro-bubble inuence.
Also on repetitive dives adjustment may be applied to the maximum allowable nitrogen
overpressure in each theoretical tissue group.
Depending on circumstances Suunto RGBM will adapt the decompression obligations
by doing any or all of the following:
• Reducing no-decompression stop dive times
• Adding Mandatory Safety Stops
• Increasing decompression stop times
• Advising an extended surface interval (Diver Attention symbol).
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, substan-
tial multiday diving. When this is detected in addition to adapting the decompression
algorithm the Suunto RGBM model will in some circumstances also advise, with the
Diver Attention Symbol (review chapter 3.6) that the diver extend the surface interval.
6.3. 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 upped to the next higher percent-
age value
• for recreational scuba diving, the recommended upper limit of 1.4 bar PO
2
is used
as a default
• the CNS% limits up to 1.4 bar are based on 1991 NOAA Diving Manual limits, but
the limits above 1.4bar are signicantly shortened
• the OTU monitoring is based on the long-term daily tolerance level and the recov-
ery rate is reduced
Oxygen related information displayed by the dive computer is also designed to ensure
all warnings and displays in the appropriate phases of a dive. E.g. the following informa-
tion will be shown before and during a dive, when the computer is set in Nitrox mode:
• the selected O
2
%
• 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 PO
2
is below 0.5 bar
• audible alarms are given and the actual PO
2
value blinks when it exceeds the
preset limit
• in dive planning the maximum depth according to the O
2
% and maximum PO
2
selected.
6.4. TECHNICAL SPECIFICATION
Dimensions and weight:
• Diameter: 61 mm [2.4in].
• Thickness: 28 mm [1.1in].
• Weight: 68g [2.4 oz].
Depth Gauge:
• Temperature compensated pressure sensor.
• Calibrated complying with EN 13319, in fresh water the readings are about 3%
smaller.
• Maximum depth of operation: 80 m [262 ft] (complying with EN 13319).
• Accuracy: ± 1% of full scale or better from 0 to 80 m [262 ft] at 20°C [68°F]
(complying with EN 13319).
• Depth display range: 0 … 99.9 m [328 ft].
• Resolution: 0.1 m from 0 to 99.9 m [1 ft from 0 to 328 ft].
Temperature display:
• Resolution: 1°C [1.5°F].
• Display range: -9 ... +50°C [-9 ... +122°F].
• Accuracy: ± 2°C [± 3.6°F] within 20 minutes of temperature change.
Calendar Clock:
• Accuracy: ± 25 s/month (at 20°C [68°F]).
• 12/24 h display.
Other displays:
• Dive time: 0 to 999 min, counting starts and stops at 1.2 m [4 ft] depth.
• Surface time: 0 to 99 h 59 min.
• Dive counter: 0 to 99 for repetitive dives.
• No-decompression time: 0 to 199 min (- - after 199).
• Ascent time: 0 to 99 min (- - after 99).
• Ceiling depths: 3.0 to 100 m [10 to 328 ft].
Displays only in Nitrox mode:
• Oxygen%: 21 - 50.
• Oxygen partial pressure display: 1.2 - 1.6 bar depending on the limit setting.
• Oxygen Limit Fraction: 1 - 110% with 10% resolution (bar graph).
Logbook/Dive Prole Memory:
• Recording interval: 30 seconds
• Depth accuracy: 0.3 m [1 ft].
Operating Conditions
• Normal altitude range: 0 to 3000 m [10000 ft] above sea level.
• Operating temperature: 0°C to 40°C [32°F to 104°F].
• Storage temperature: -20°C to +50°C [ -4°F to +122°F].
It is recommended that the instrument be stored in a dry place at room temperature.
NOTE Donotleavethedivecomputerindirectsunlight!
Tissue Calculation Model
• Suunto RGBM algorithm (developed by SUUNTO and Bruce R. Wienke, BS, MS
and PhD).
• 9 tissue compartments.
• Tissue compartment halftimes: 2.5, 5, 10, 20, 40, 80, 120, 240 and 480 minutes
(on gassing). The off gassing halftimes are slowed down.
• Reduced gradient (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 tables and
principles.
Battery
• One 3 V lithium battery: CR 2450 (K5597) and O-ring 1.78 mm x 31.47 mm
70 ShA (K5664).
• Battery storage time (shelf life): Up to three years.
• Replacement: Every two years or more often depending on dive activity.
• Life expectancy at 20°C [68°F]:
• 0 dives/y 2 years
• 100 dives/y 1.5 years
• 300 dives/y 1 year
The following conditions have an affect on the expected battery lifetime:
• The length of the dives.
• The condition in which the unit is operated and stored (e.g. temperature/cold
conditions). Below 10°C [50°F] the expected battery lifetime is about 50-75% of
that at 20°C [68°F].
• The use of the 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batterymaycause
thebatterywarningeventhoughthebatteryhasenoughcapacity.
Inthiscase,thewarningusuallydisappearswhentheDiveMode
isactivatedagain.
7. SUUNTO LIMITED WARRANTY FOR SUUNTO DIVING
COMPUTERS AND SUUNTO DIVING COMPUTER
ACCESSORIES
Suunto warrants that during the Warranty Period Suunto or a Suunto Authorized
Service Center (hereinafter Service Center) will, at its sole discretion, remedy defects
in materials or workmanship free of charge either by a) repairing, or b) replacing, or
c) refunding, subject to the terms and conditions of this Limited Warranty. This Limited
Warranty is only valid and enforceable in the country of purchase, unless local law
stipulates otherwise.
Warranty Period
The Limited Warranty Period starts at the date of original retail purchase. The Warranty
Period is two (2) years for display devices. The Warranty Period is one (1) year for
accessories and consumable parts, including but not limited to chargeable batteries,
chargers, docking stations, straps, cables and hoses.
Exclusions and Limitations
This Limited Warranty does not cover:
1. a) normal wear and tear, b) defects caused by rough handling, or c) defects or
damage caused by misuse contrary to intended or recommended use;
2. user manuals or any third-party items;
3. defects or alleged defects caused by the use with any product, accessory, soft-
ware and/or service not manufactured or supplied by Suunto;
4. replaceable batteries.
This Limited Warranty is not enforceable if item:
1. has been opened beyond intended use;
2. has been repaired using unauthorized spare parts; modied or repaired by
unauthorized Service Center;
3. serial number has been removed, altered or made illegible in any way, as deter-
mined at the sole discretion of Suunto;
4. has been exposed to chemicals including but not limited to mosquito repellents.
Suunto does not warrant that the operation of the Product will be uninterrupted or error
free, or that the Product will work with any hardware or software provided by a third party.
Access to Suunto warranty service
You must have proof of purchase to access Suunto warranty service. For instructions
how to obtain warranty service, visit www.suunto.com/warranty, contact your local
authorized Suunto retailer, or call Suunto Help Desk +358 2 2841160 (national or
premium rates may apply).
Limitation of Liability
To the maximum extent permitted by applicable mandatory laws, this Limited Warranty
is your sole and exclusive remedy and is in lieu of all other warranties, expressed or
implied. Suunto shall not be liable for special, incidental, punitive or consequential
damages, including but not limited to loss of anticipated benets, loss of data, loss
of use, cost of capital, cost of any substitute equipment or facilities, claims of third
parties, damage to property resulting from the purchase or use of the item or arising
from breach of the warranty, breach of contract, negligence, strict tort, or any legal or
equitable theory, even if Suunto knew of the likelihood of such damages. Suunto shall
not be liable for delay in rendering warranty service.
8. SUUNTO DIVE MANAGER (SDM)
Suunto Dive Manager (SDM) is optional PC software that greatly enhances the func-
tionality of your Suunto Zoop.
With the SDM software, you can download dive data from your dive computer to your
PC. You can then view and organize all the data recorded with your Suunto Zoop. You
can also print copies of your dive proles.
You can always download the latest version of Suunto Dive Manager from
www.suunto.com.
Please check for updates regularly as new features are constantly being developed.
The following data is transferred to your PC:
• depth prole of the dive
• dive time
• preceding surface interval time
• dive number
• dive start time (year, month, day and time)
• dive computer settings
• tissue calculation data
• water temperature
• additional dive information (e.g. SLOW and Mandatory Safety Stop violations,
Diver Attention Symbol, Bookmark, Surfaced Mark, Decompression Stop Mark,
Ceiling Error Mark)
• dive computer serial number
• personal information (30 characters)
Using SDM, you are able to enter setup options such as:
• input a personal, 30-character eld into the Suunto Zoop
It is also possible to manually add comments, multimedia and other personal informa-
tion to the PC-based dive data les.
9. GLOSSARY
Altitude dive A dive made at an elevation greater than 300 m
[1000 ft] above sea level.
Ascent rate The speed at which the diver ascends toward the
surface.
ASC RATE Abbreviation for ascent rate.
Ascent time The minimum amount of time needed to reach the
surface on a decompression stop di
ASC TIME Abbreviation for ascent time.
Ceiling On a decompression stop dive the shallowest depth to
which a diver may ascend based on computer nitrogen
load.
Ceiling Zone On a decompression stop dive the zone between the
ceiling and the ceiling plus 1.8 m [6 ft]. This depth
range is displayed with the two arrows pointing toward
each other (the ”hour glass” icon).
CNS Abbreviation for Central Nervous System toxicity.
Central Nervous System
Toxicity
Toxicity caused by oxygen. Can cause a variety of
neurological symptoms. The most important of which
is an epileptic-like convulsion which can cause a diver
to drown.
CNS% Central Nervous System toxicity limit fraction. Also note
Oxygen Limit Fraction.
Compartment See “Tissue group”.
DAN Divers Alert Network.
DCI Abbreviation for decompression illness.
Decompression Time spent at a decompression stop or range before
surfacing, to allow absorbed nitrogen to escape
naturally from tissues.
Decompression range On a decompression stop dive the depth range,
between the oor and ceiling, within which a diver must
stop for some time during ascent.
Decompression illness Any of a variety of maladies resulting either directly
or indirectly from the formation of nitrogen bubbles
in tissues or body uids, as a result of inadequately
controlled decompression. Commonly called “bends”
or “DCI”.
Dive series A group of repetitive dives between which the dive
computer indicates some nitrogen loading is present.
When nitrogen loading reaches zero the dive computer
deactivates.
Dive time Elapsed time between leaving the surface to descend,
and returning to the surface at the end of a dive.
EAD Abbreviation for equivalent air depth.
EAN Abbreviation for enriched air nitrox.
Enriched Air Nitrox Also called Nitrox or Enriched Air = EANx. Air that
has some oxygen added. Standard mixes are EAN32
(NOAA Nitrox I = NN I) and EAN36 (NOAA Nitrox II =
NN II).
Equivalent Air Depth Nitrogen partial pressure equivalent table.
Floor The deepest depth during a decompression stop dive
at which decompression takes place.
Half-time After a change in ambient pressure, the amount
of time required for the partial pressure of nitrogen
in a theoretical compartment to go half-way from
its previous value to saturation at the new ambient
pressure.
Multi-level dive A single or repetitive dive that includes time spent at
various depths and whose no-decompression limits are
therefore not determined solely by the maximum depth
attained.
NITROX In sports diving refers to any mix with a higher fraction
of oxygen than standard air.
NOAA United States National Oceanic and Atmospheric
Administration.
No-decompression time The maximum amount of time a diver may remain at a
particular depth without having to make decompression
stops during the subsequent ascent.
No-decompression dive Any dive which permits a direct, uninterrupted ascent
to the surface at any time.
NO DEC TIME Abbreviation for no-decompression time limit.
OEA = EAN = EANx Abbreviation for Oxygen Enriched Air Nitrox.
OLF Abbreviation for Oxygen Limit Fraction.
OTU Abbreviation for Oxygen Tolerance Unit.
Oxygen Tolerance Unit Is used to measure the Whole-Body-Toxicity.
Oxygen Limit Fraction A term used by SUUNTO for the values displayed in
the Oxygen Toxicity bargraph. The value is either the
CNS% or the OTU%.
O
2
% Oxygen percentage or oxygen fraction in the breathing
gas. Standard air has 21% oxygen.
Oxygen partial pressure Limits the maximum depth to which the used Nitrox
mixture can safely be used. The maximum partial
pressure limit for enriched air diving is 1.4 bar. The
contingency partial pressure limit is 1.6 bar. Dives
beyond this limit have the risk for immediate oxygen
toxicity.
PO
2
Abbreviation for oxygen partial pressure.
RGBM Abbreviation for Reduced Gradient Bubble Model.
Reduced Gradient
Bubble Model
Modern algorithm for tracking both dissolved and free
gas in divers.
Repetitive dive Any dive whose decompression time limits are affected
by residual nitrogen absorbed during previous dives.
Residual nitrogen The amount of excess nitrogen remaining in a diver
after one or more dives.
SURF TIME Abbreviation for surface interval time.
Surface interval time Elapsed time between surfacing from a dive and
beginning a descent for the subsequent repetitive dive.
Tissue group Theoretical concept used to model bodily tissues
for the construction of decompression tables or
calculations.
Whole-Body Toxicity Another form of oxygen toxicity, which is caused by
prolonged exposure to high oxygen partial pressures.
The most common symptoms are irritation in the
lungs, a burning sensation in the chest, coughing and
reduction of the vital capacity. Also called Pulmonary
Oxygen Toxicity. See also OTU.
DISPOSAL OF THE DEVICE
Please dispose of the device in an appropriate way, treating it as
electronic waste. Do not throw it in the garbage. If you wish, you
may return the device to your nearest Suunto dealer.
°
C
Timekeeping
display
Time &
alternate
display
Plan
TIME & STAND-BY MODE SURFACE MODE
Time &
alternate
display
Bookmark
in prole
memory
DIVING MODE
> 1.2 m / 4 ft
4) SET ADJ 3) SET TIME 2) SET ALARMS 1) SET MODEL
2) SET
2 MODE OPTIONS
4 SET OPTIONS 3 MEMORY OPTIONS
1) MEMORY
3) PC SET
PC SETTINGS HISTORY
2) HISTORY 1) LOGBOOK
°
C
TIME
DIVE
m
°
C
DIVE 1, page 1
DIVE 2, page 1
DIVE N, page 1
END
page 2 page 3
page 2 page 3
page 2 page 3
page 4
page 4
page 4
3 sec.
Nitrox
display
(ALTITUDE)
A0/A1/A2
(PERSONAL)
P0/P1/P2
(UNITS)
METR/IMP
24H/AM/PM
HOURS
MINUTES
YEAR
MONTH
DAY
ON/OFF
DIVE TIME (min)
ON /OFF
ALARM DEPTH
AIR/NITROX
O2%
PO2
Copyright © Suunto Oy 12/2009. All rights reserved.
Biip, biip!
SUUNTO HELP DESK
Global +358 2 284 1160
USA (toll free) +1-800-543-9124
Canada (toll free) +1-800-267-7506
www.suunto.com
Copyright © Suunto Oy 12/2009, 08/2011.
Suunto is a registered trademark of Suunto Oy.
All Rights reserved.