SCUBAPRO-UWATEC galileo luna User manual
English
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SAFETY CONSIDERATIONS
You must carefully read and understand this entire manual before using your Galileo.
Diving has many inherent risks. Even if you follow the instructions of this manual in a careful
manner, it is still possible that you may be seriously injured or die from decompression
sickness, oxygen toxicity or some other inherent risk of scuba diving with Nitrox or
compressed air. Unless you are fully aware of these risks and are willing to personally accept
and assume responsibility for those risks, do not use Galileo.
Guidelines for the use of Galileo:
The following guidelines for using Galileo are derived from the latest medical research and
the recommendations of the American Academy of Underwater Sciences for diving with
diving computers.
Following these guidelines will greatly increase your safety while diving, but cannot guarantee
that decompression sickness or oxygen toxicity will not occur.
• Galileoisdesignedfordiveswithcompressedair(21%O2)andNitrox(22to100%O2)
only. Do not use Galileo for dives made with other mixed gases.
• Itisabsolutelynecessarytocheckthesetmixturebeforeeachdiveandtocompareit
to the gas mixture currently used. Always remember: setting an incorrect mixture carries
an inherent risk of decompression sickness and/or oxygen toxicity! Maximum deviation
fromthemeasuredmixturemustnotexceed1%O2. An incorrect gas mixture can be
lethal!
• OnlyuseGalileowithopen-circuitbreathingsystems.
• OnlyuseGalileofordivingwithanindependentbreathingapparatus.Galileoisnot
designedforlong-termexposureswithNitrox.
• Alwaysobservethevisualandaudiblealarmsignals.Avoidsituationsofincreasedrisk
which are marked with a warning sign in this operating manual.
• GalileohasappO2warning.Thedefaultlimitissetat1.4barppO2max.Itcanbe
changedbetween1.2and1.6bar.
• Frequentlycheckthe“oxygenclock”(CNSO2).AscendandnishthediveiftheCNSO2
exceeds75%.
• NeverdivedeeperthantheMaximumOperatingDepth(MOD)pertinenttothegas
mixture in use.
• Alwayscheckthedivinglimitsconsideringtheoxygencontentandstandardsports
divingprocedures(decompressionsickness,oxygentoxicity).
• Inaccordancewiththerecommendedmaximumdivinglimitofallinstructionalagencies,
donotdivedeeperthan40m/130ft.
• Thedangerofnitrogennarcosishastobetakenintoconsideration.Galileogivesno
warning about this.
• Onalldives,withorwithoutdivecomputer,makeasafetystopforatleast3minutesat
5m/15ft.
• Alldiversusingdivecomputerstoplandivesandindicateordeterminedecompression
status must use their own computer, which they take with them on all dives.
• IfGalileofailsatanytimeduringthedive,thedivemustbeterminated,andappropriate
surfacingprocedures(includingaslowascentanda3to5minutesafetystopat
5m/15ft)shouldbeinitiatedimmediately.
• Complywiththeascentrateandcarryoutanydecompressionstoprequired.Ifthe
computershouldfailforanyreason,youmustascendatarateof10m/30ftperminute
or less.
• Onanygivendive,bothdiversinabuddypairmustfollowthemostconservativedive
computer for that particular dive.
•Neverdivewithoutabuddy.Galileodoesnotsubstituteforadivebuddy.
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•Onlymakedivesthatareappropriatetoyourlevelofdivetraining.Galileodoesnot
increase your knowledge of diving.
•Alwaysdivewithback-upinstruments.Makesurethatyoualwaysuseback-up
instrumentation including a depth gauge, submersible pressure gauge, digital bottom
timer or dive watch, and have access to decompression tables whenever diving with a
dive computer.
•Avoidrepeatedascentsanddescents(yo-yodiving).
• Avoidrepeatedheavyworkloadwhileatdepth.
• Planthedivestobeshorteriftheyaremadeincoldwater.
• Afternishingthedecompressionorattheendofano-stopdive,thenalstageofthe
ascent should be as slow as possible.
• YouMUSTbefamiliarwithallsignsandsymptomsofdecompressionsicknessbefore
usingGalileo!SeekIMMEDIATEtreatmentfordecompressionsicknessshouldany
of these signs or symptoms occur after a dive! There is a direct correlation between
the effectiveness of treatment and the delay between the onset of symptoms and the
treatment for decompression sickness.
• OnlydivewithNitroxafteryouhavebeenthoroughlyinstructedbyarecognized
institution.
Repetitive dives
• DonotstartyournextdivebeforeyourCNSO2%statushasdroppedbelow40%.
• WhendivingwithNitrox,makesureyoursurfaceintervalislongenough(justlikediving
withcompressedair).Planforaminimumsurfaceintervaloftwohours.Oxygen,too,
needs sufficient time to leave the body.
• Matchgasmixturetotheintendeddive.
• Donotattemptarepetitivediveiftheno-divewarning is visible on the display.
• Planadaywithoutdivingonceaweek.
• Ifyouhavetochangecomputers,waitatleast48hoursbeforecarryingoutyournext
dive.
• Divingafteraresetoftheremainingsaturationmayleadyouintopotentiallyhazardous
situations which could result in death or serious injury. After a reset of the remaining
saturationdonotdiveforatleast48hours.
Altitude and diving
• Donotdiveataltitudeshigherthan4,000m/13,000ft.
• AfteradivedonotrisetoaltitudesthatGalileoprohibitsviathealtituderangeindicator.
Flying after diving
• Afterdiving,waitatleast24hourspriortoying.
Important notice to individuals with pacemakers, defibrillators or other implanted electronic devices.Individuals
whohaveapacemakerusetheUWATECGalileodivecomputerattheirownrisk.Beforestartinguse,werecommenda
maximal exercise stress test under a doctor’s supervision. The test is to ensure the safety and reliability of the simultaneous
use of the pacemaker and the Galileo dive computer.
Galileo dive instrument is a personal protective equipment in compliance with the essential safety requirements of the
EuropeanUniondirective89/686/EEC.RINASpA,ViaCorsica12,I-16128Genoa,notiedbodyno.0474,havecertiedits
conformitywiththeEuropeanStandardEN250:2014(EN250:2014:Respiratoryequipment–Opencircuitselfcontained
compressedairdivingapparatus–requirements,testingandmarking);
GalileodiveinstrumentisalsocompliantwiththeEuropeanUniondirective2014/30/EU.
Standard EN 13319: 2000
GalileodiveinstrumentiscompliantwiththeEuropeanstandardEN13319:2000(EN13319:2000–Depthgaugesand
combineddepthandtimemeasuringdevices–Functionalandsafetyrequirements,testsmethods).
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WelcometoUWATECdivecomputersandthankyouforpurchasingGalileo.Youarenow
the owner of an extraordinary partner for your dives. This manual provides you easy access
toUWATECstateofthearttechnologyandGalileo’skeyfeaturesandfunctions.Shouldyou
wishtoknowmoreaboutSCUBAPROUWATECdivingequipment,pleasevisitourwebsite
www.scubapro.com.
!WARNING
- Galileo has a depth rating of 330m/1084ft in GAUGE mode only.
- As a decompression computer Galileo functions to a depth of 120m/394ft only.
- At depths between 115m/377ft and 120m/394ft in computer mode the message SWITCHING TO
GAUGE appears on the display and at depths over 120m/394ft Galileo will automatically switch to
GAUGE mode and cannot be used as decompression computer for the remainder of the dive.
- Diving at oxygen partial pressures higher than 1.6bar (corresponding to a depth of 67m/220ft when
breathing compressed air) is extremely dangerous and could lead to serious injury or death.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS .........................................................................................1
GUIDELINESFORTHEUSEOFGALILEO...........................................................1
1. INTRODUCTION TO GALILEO ...............................................................................6
1.1 GLOSSARY...............................................................................................7
1.2 OPERATINGMODES ................................................................................9
1.3 TURNINGONGALILEOANDTIMEOFDAYDISPLAY ...............................9
1.4 ALTITUDEALARMAFTERADIVE ...........................................................10
1.5 NO-DIVEWARNINGAFTERADIVE ........................................................10
1.6 SOS ........................................................................................................10
1.7 REPLACEABLEBATTERY......................................................................11
1.8 SCREENCONFIGURATIONOPTIONS ....................................................12
1.9 BUTTONOPERATION.............................................................................13
1.10 BUTTONFUNCTIONSONTHESURFACE..............................................13
1.11 MOUNTINGANDPAIRINGOFTHEHIGH-PRESSURETRANSMITTER...13
1.12 GASSUMMARYTABLE ..........................................................................15
1.13 PDIS........................................................................................................15
1.13.1 INTRODUCTIONTOPDIS........................................................15
1.13.2 HOWDOESPDISWORK?.......................................................17
1.13.3 SPECIALCONSIDERATIONSWHENDIVINGWITHMORE
THANONEGASMIXTURE ......................................................17
1.14 TURNINGOFFGALILEO .........................................................................17
2. MENUS, SETTINGS AND FUNCTIONS ...............................................................18
2.1 MAINMENUDESCRIPTION....................................................................19
2.2 SETTINGTHEOXYGENCONCENTRATION...........................................19
2.3 DIVESETTINGS ......................................................................................20
2.3.1 MBLEVEL ...............................................................................20
2.3.2 GAUGEMODE.........................................................................20
2.3.3 SAFETYSTOPTIMER..............................................................20
2.3.4 PPO2MAX ................................................................................20
2.3.5 NITROXRESETTIME...............................................................21
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2.3.6 WATERTYPE...........................................................................21
2.3.7 DESATURATIONRESET .........................................................22
2.3.8 ALL-SILENTMODE..................................................................22
2.3.9 PDISMODE .............................................................................23
2.4 DIGITALCOMPASS.................................................................................23
2.4.1 USINGTHECOMPASSONTHESURFACE .............................23
2.4.2 SETTINGTHEAUTO-OFFTIME...............................................24
2.4.3 SETTINGTHEDECLINATION...................................................24
2.5 ALTIMETER .............................................................................................24
2.6 WARNINGSETTINGS ............................................................................25
2.6.1 MAXIMUMDEPTH ...................................................................26
2.6.2 CNSO2=75%.........................................................................26
2.6.3 NO-STOP=2MINUTES..........................................................27
2.6.4 ENTERINGDECOMPRESSION................................................28
2.6.5 DIVETIMEANDTURN-AROUNDTIME....................................28
2.6.6 TANKPRESSURE....................................................................29
2.6.7 RBT=3MINUTES...................................................................30
2.6.8 PRESSURESIGNAL ................................................................30
2.6.9 ENTERINGLEVELSTOPS .......................................................31
2.6.10 MBSTOPIGNORED................................................................31
2.6.11 MBLEVELREDUCED..............................................................32
2.6.12 L0NO-STOPTIME=2MINUTESWHENDIVINGANMBLEVEL
................................................................................................32
2.6.13 ENTERINGDECOWHENDIVINGANMBLEVEL.....................33
2.7 CLOCKSETTINGS..................................................................................33
2.7.1 WAKE-UPALARM ...................................................................34
2.7.2 TIME ........................................................................................34
2.7.3 TIMEZONE..............................................................................34
2.8 OTHERSETTINGS..................................................................................34
2.8.1 DEVICEINFORMATION ...........................................................34
2.8.2 GASINTEGRATION .................................................................34
2.8.3 BACKLIGHTDURATION ..........................................................35
2.8.4 DISPLAYCONTRAST ..............................................................36
2.8.5 IRDASPEED............................................................................36
2.8.6 WATERCONTACTS.................................................................36
2.8.7 REVERTTOFACTORYSETTINGS...........................................37
2.9 PERSONALIZATION ................................................................................37
2.9.1 SCREENCONFIGURATION .....................................................37
2.9.2 LANGUAGE .............................................................................38
2.9.3 START-UPPICTURE ................................................................38
2.9.4 UNITS ......................................................................................38
2.9.5 WORKLOAD ............................................................................38
2.9.6 OWNERINFORMATION..........................................................38
2.9.7 EMERGENCYINFORMATION ..................................................39
2.10 PICTURES ..............................................................................................39
2.11 DIVEPLANNER.......................................................................................39
2.11.1 PLANNINGANO-STOPDIVE ..................................................40
2.11.2 PLANNINGADECOMPRESSIONDIVE....................................40
2.12 REVIEWINGTHELOGBOOK ..................................................................40
3. DIVING WITH GALILEO ........................................................................................42
3.1 NITROX...................................................................................................42
3.2 ALARMS .................................................................................................42
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3.2.1 ASCENTRATE.........................................................................43
3.2.2 MOD/PPO2..............................................................................44
3.2.3 CNSO2=100% ...........................................................................45
3.2.4 MISSEDDECOMPRESSIONSTOP..........................................46
3.2.5 RBT=0MINUTES...................................................................46
3.2.6 LOWBATTERY ........................................................................47
3.3 DISPLAYINFORMATION .........................................................................48
3.3.1 DESCRIPTIONOFENTRIES ....................................................48
3.3.2 CLASSICSCREENCONFIGURATION .....................................51
3.3.3 LIGHTSCREENCONFIGURATION ..........................................51
3.3.4 FULLSCREENCONFIGURATION............................................52
3.4 SPECIALFUNCTIONSCOMMONTOCLASSIC,LIGHTANDFULL
CONFIGURATIONS .................................................................................... 53
3.4.1 ACCESSINGANDUSINGTHEDIGITALCOMPASS.................53
3.4.2 SETTINGBOOKMARKS ..........................................................54
3.4.3 SAFETYSTOPTIMER..............................................................54
3.4.4 VIEWINGDIVEPROFILE,INDIVIDUALCOMPARTMENT
SATURATION
ANDPICTURES.......................................................................55
3.4.5 ACTIVATINGTHEBACKLIGHT ................................................56
3.5 DIVINGWITHMBLEVELS ......................................................................56
3.5.1 MBGLOSSARY .......................................................................57
3.5.2 DISPLAYINFORMATION..........................................................58
3.5.3 DISPLAYOFUNDERLYINGL0DECOMPRESSION
INFORMATION.........................................................................58
3.5.4 CASCADINGMBLEVELS........................................................59
3.5.5 LEVELSTOPIGNORED/MBLEVELREDUCED .......................59
3.6 DIVINGWITHPDIS..................................................................................59
3.6.1 PDISDURINGNOSTOPDIVING .............................................60
3.6.2 PDISDURINGDECOMPRESSIONDIVING ..............................61
3.6.3 PDISDURINGDIVESWITHMBLEVELS..................................62
3.7 ALTITUDEANDTHEDECOMPRESSIONALGORITHM ...........................62
3.7.1 PROHIBITEDALTITUDE...........................................................63
3.7.2 DECOMPRESSIONDIVESINMOUNTAINLAKES....................63
3.8 GAUGEMODE........................................................................................63
3.9 BUTTONFUNCTIONOVERVIEW ............................................................65
4. GALILEO AND SMARTTRAK (PC INTERFACE) ..................................................66
4.1 INTRODUCTIONTOSMARTTRAK..........................................................66
4.2 CHANGINGSETTINGS ...........................................................................67
4.3 DOWNLOADINGDIVESANDORGANIZINGYOURLOGBOOK...............68
4.4 UPLOADINGPICTURES .........................................................................69
4.5 UPLOADINGLANGUAGES .....................................................................70
4.6 UPDATINGORUPGRADINGTHEFIRMWARE........................................70
5. TAKING CARE OF GALILEO.................................................................................71
5.1 TECHNICALINFORMATION....................................................................71
5.2 MAINTENANCE.......................................................................................71
5.2.1 REPLACINGTHEBATTERYINGALILEO .................................71
5.2.2 REPLACINGTHEBATTERYINTHESMARTTRANSMITTER ...72
5.3 WARRANTY ............................................................................................73
5.4 INDEX .....................................................................................................74
1. Introduction to Galileo
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1. INTRODUCTION TO GALILEO
Galileoisdivingtechnologymadeeasy.Itisanintuitivetoolwhichmonitorsallaspectsofthe
dive to provide you with accurate information relative to your individual experience. Galileo
offers an array of features to enhance your diving pleasure.
• Listentoyourbodywithbuilt-inheartratemonitortechnologyforultimatesafety
andpeaceofmind(patentpending). Enjoy the heart rate monitor with workload
measurementintegratedinthealgorithm,broughttoyouthankstoauniquepartnership
betweenPolarandUWATEC.Heartratecanbecalleduponthedisplayatanypoint
of the dive. Dive profile and heart rate curve are stored in Galileo’s memory for later
analysis. After the dive, heart data can be downloaded to a personal computer through
SmartTRAK,thededicatedUWATECsoftware,thenanalyzed.
Your Galileo User Manual is divided into five main chapters.
Chapter 1: Introduction to Galileo. This chapter provides an overview of the Galileo
computer and describes its operating modes and functions when on the
surface.
Chapter 2: Menus, settings and functions. This chapter describes every aspect of
the computer as it relates to its use, functions and features. It describes all
parameters you can adjust directly on the dive computer.
Chapter 3: Diving with Galileo. This chapter takes you underwater with your new
computer.It’sabouteverythingGalileocanandwilldotoenhanceyoursafety
and fun underwater.
Chapter 4: Galileo and SmartTRAK (PC interface).Thischapterisaboutpersonalization
and customization. It describes how to change settings, to download and
manage your logbook, to upload pictures and to upgrade or update the
firmware on your new computer.
Chapter 5: Taking care of Galileo. This chapter illustrates how to take care of your new
dive computer.
It is time to dive into the details now. We hope you will enjoy getting to know your new
computer and we wish you many happy dives with Galileo.
1. Introduction to Galileo
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1.1 Glossary
AVG Average depth, calculated from the beginning of the dive or, in case of
gauge mode, from the time of reset.
CNS O2Central Nervous System oxygen toxicity.
DESAT Desaturation time. The time needed for the body to completely eliminate
any nitrogen taken up during diving.
Dive time Thewholetimespentbelowadepthof0.8m/3ft.
Gas integration The feature in Galileo to include tank pressure information in its calculations
and to display it on the computer screen.
IrDA InfraredDataAssociation,referstothecommunicationprotocolbetween
divecomputerandPC.
Max depth Maximum depth attained during the dive.
MB Microbubble. Microbubbles are tiny bubbles that can build up in a diver’s
body during and after a dive.
MB level Oneofthesixsteps,orlevels,inUWATEC’scustomizablealgorithm.
MOD MaximumOperatingDepth.Thisisthedepthatwhichthepartialpressure
ofoxygen(ppO2)reachesthemaximumallowedlevel(ppO2max). Diving
deeperthantheMODwillexposethedivertounsafeppO2levels.
Nitrox A breathing mix made of oxygen and nitrogen, with the oxygen
concentrationbeing22%orhigher.Inthismanual,airisconsideredasa
particular type of Nitrox.
NO FLY Minimum amount of time the diver should wait before taking a plane.
No-stop time This is the time that you can stay at the current depth and still make a
direct ascent to the surface without having to perform decompression
stops.
O2 Oxygen.
O2% Oxygenconcentrationusedbythecomputerinallcalculations.
Pairing TheactofestablishingacodedRFcommunicationbetweenGalileoand
ahigh-pressuretransmitter.
PDIS: Prole-Dependent Intermediate Stop. This refers to the concept of
introducing an intermediate stop during an ascent.
PDI stop:
This refers to the actual stop itself and the depth at which it is to be carried out.
ppO2 Partial pressure of oxygen. This is the pressure of the oxygen in the
breathingmix.Itisafunctionofdepthandoxygenconcentration.AppO2
higherthan1.6barisconsidereddangerous.
ppO2max The maximum allowed value for ppO2. Together with the oxygen
concentrationitdenestheMOD.
Press The act of pressing and releasing one of the buttons.
Press and hold Theactofpressingandholdingoneofthebuttonsfor1secondbefore
releasing it.
RBT RemainingBottomTime,itisthetimethatadivercanspendatthecurrent
depth before having to ascend in order to reach the surface with the set
tankreserve.TheRBTaccountsforallexisting(ifpresent)andupcoming
decompression obligations.
SOS mode The result of having completed a dive without respecting all mandatory
decompression obligations.
1. Introduction to Galileo
1. Introduction to Galileo
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Stopwatch A stopwatch, for example to time certain legs of the dive.
SURF INT Surface interval, the time from the moment the dive is closed.
TAT Total ascent time, the time it takes to perform the ascent from your current
depth to the surface in a decompression dive, including all decompression
stops and assuming the ideal ascent rate.
UTC UniversalTimeCoordinated,referstotimezonechangeswhentraveling.
WL Workload.
1. Introduction to Galileo
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1.2 Operating modes
The functions of the Galileo computer
can be grouped into three categories,
each corresponding to a specific mode of
operation:
- surface mode: the computer is on the
surface.Inthismodeyoucanchange
settings, review your logbook, use the
dive planner, see remaining desaturation
afteradive,downloadtoPCandmuch
more;
- dive mode: the computer is at a
depthof0.8m/3ftormore.Inthis
mode, Galileo monitors depth,
time, temperature and performs all
decompressioncalculations;
- sleep mode: the computer is on the
surfaceformorethan3minuteswithout
operation. Though the computer
appears to be turned off completely, it
is still active. Galileo checks the ambient
pressureonceevery60seconds
for uninterrupted monitoring of the
environment.
1.3 Turning on Galileo and
time of day display
To start the computer, press and hold the
right button. The screen will briey show
the Galileo logo and then switch to the
time of daydisplay.Ifyoupress the right
button, you will skip the start-up picture
and go straight to the time of day display.
Think of this as the homepage of your new
dive computer. This is where it all starts.
The type of information displayed in surface
mode is different depending on whether
Galileo has remaining saturation from a
recent dive or is completely desaturated.
In case of no remaining saturation, the
display looks as depicted below. The
buttons are marked, from left to right, with
“MENU”,“LOG”and“LIGHT”.Thetopof
the display shows as default the Galileo
logo, which can be replaced by the first two
linesoftheownerinformationdata(referto
section 2.9.6 on owner information). The
time of day is shown in the middle of the
display. Underneath it, Galileo displays
various information: on the top row the
date, the current temperature, the altitude
class (in form of a stylized mountain, see
section 3.7) and the battery capacity; on
the lower row, the tank pressure, the set
oxygen concentration, the corresponding
MODand theactive MBlevelsetting (see
section2.3.1).
Ifthecomputerhasremainingdesaturation
from a recent dive, the upper portion of
the screen is replaced with the following
information:desaturationtime,no-ytime,
surfaceintervalandCNSO2(ifapplicable).
The remaining desaturation time (DESAT)
is calculated by the decompression model
in the computer. Any dive started while
there is remaining desaturation on your
computer is considered a repetitive dive,
meaningthatGalileoaccountsforthepre-
existing nitrogen load in your body.
The no-fly time (NO FLY) is the time
during which an exposure to the reduced
1. Introduction to Galileo
1. Introduction to Galileo
10
pressure inside the cabin of an airplane
could cause decompression sickness, as
calculated by the decompression model in
the computer.
!WARNING
Flying while Galileo displays NO FLY can
result in serious injury or death.
The surface interval (SURF INT) is
displayed from the moment the dive is
closed (5minutes after surfacing), for as
long as there is remaining desaturation on
the computer.
In addition, the bar graphs at the sides
of the screen show the CNSO2 (left bar)
and the residual nitrogen loading (right
bar). Depending on the amount of residual
nitrogen, Galileo shows the prohibited
altitude classes via grey lines inside the
stylizedmountain(seesection3.7formore
information).
1.4 Altitude alarm after
a dive
Going to altitude is in a way similar to
starting an ascent from a dive: you expose
your body to a lower partial pressure of
nitrogen and consequently you start off-
gassing. After a dive, given the higher
nitrogen loading in your body, even
reaching an otherwise negligible altitude
can potentially cause decompression
sickness. Consequently, when in surface
or sleep mode, Galileo constantly monitors
the ambient pressure and uses it to evaluate
your nitrogen loading and offgassing. If
Galileo notices a drop in ambient pressure
not compatible with your current nitrogen
loading, it will activate the alarm to alert you
of the potentially dangerous situation.
1.5 No-dive warning after
a dive
If Galileo detects a situation of increased
risk (due to the potential of microbubble
accumulation from previous dives or a
CNSO2 level above 40%), the symbol
will appear on the display together with a
suggested surface interval. This minimum
surface interval is what Galileo predicts
being necessary to reduce the number of
microbubblesand/ortoreducetheCNSO2
levelbelow40%.
You should not undertake a dive as long
as the no-dive warning is displayed on
the computer screen. If the warning is
prompted by microbubble accumulation
(as opposed to CNSO2 over 40%) and
youdiveanyway,youwillhaveshorterno-
stop times or longer decompression times.
Moreover, the duration of the microbubble
warning at the end of the dive can increase
considerably.
1.6 SOS
If you stay above a depth of 0.8m/3ft for
more than 3minutes without observing
a prescribed decompression stop, the
computer will switch into SOSmode.Once
in SOS mode the computer will lock up
and will be inoperable as a dive computer
for 24 hours. If Galileo is used for diving
withinthe24hoursofanSOS lock, it will
automatically switch to gauge mode and
provide no decompression information.
1. Introduction to Galileo
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11
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!WARNING
- Violating a mandatory decompression
obligation may result in serious injury or
death.
- Serious injury or death may result if a diver
does not seek immediate treatment should
any signs or symptoms of decompression
sickness occur after a dive.
- Do not dive to treat symptoms of
decompression sickness.
- Do not dive when the computer is in SOS
mode.
The display shows the same information as
in presence of desaturation, but in addition
the message SOS MODE appears to the
rightofthetimeofday.Insteadoftheno-
ytime,the24-hourcountdownisshown.
The middle-button description changes
from“LOG”to“SOS”,andbypressing it
an emergency message is displayed (see
section 2.9.7). The information for this
displaymustbeenteredusingSmartTRAK
anditcanbeupto20lineslong,scrollable
with the left and middle buttons. Once
the emergency message is displayed,
pressing the right button (“LOG”) shows
the details of the last dive.
1.7 Replaceable battery
Galileo uses a CR12600SE type battery
(also known as CR2NP) which is user–
replaceable and is available from your
SCUBAPRO UWATEC dealer. The display
alerts you of the status of the battery. This
is described with up to six elements inside
the battery symbol:
- aslongasfourormoreelementsarelit,
the battery has enough energy for safe
diving;
- withthreeelementsshowing,the
displays alternates between the regular
information and the message LOW
BATTERY next to the battery symbol
in10secondintervals.Thebatteryhas
enough energy for safe diving but you
shouldconsiderreplacingit;
- ifonlytwoelementsarelit,the
display shows REPLACE BATTERY
permanently. The battery does not
have enough energy to ensure a safe
dive.Withonlytwoelementslit,all
audible alarms and the backlight are
deactivated and the compass cannot be
activated;
- ifonlyoneelementislit,thecomputeris
not functional and the display shows the
message BATTERY EMPTY.
1. Introduction to Galileo
1. Introduction to Galileo
12
!WARNING
Starting a dive when the REPLACE
BATTERY message is displayed can cause
the computer to fail during the dive. Replace
the battery as soon as you notice this message.
Low-battery situations during a dive are
describedinsection3.2.6.
See Chapter 5 for information on how to
replace the battery.
1.8 Screen configuration
options (patent pending)
Indivemode,Galileodisplaysdatainone
of three preconfigured screen layouts:
CLASSIC, LIGHT or FULL.
- TheCLASSIC configuration is set
as default and shows all standard
informationneededduringthedive;this
layout can be chosen with or without a
gridseparatingthevariouselds;
- theLIGHTcongurationmaximizesthe
sizeofthedisplayeddatabyfocusing
on only the absolutely necessary
information;
- theFULLcongurationmaximizesthe
amount of information displayed.
Galileo also has a gauge mode, with a
corresponding GAUGE configuration,
in which the computer acts as a digital
depth gauge and does not perform any
decompression calculation.
FNOTE:
The LIGHT configuration does not
support dives with MB level stops and
decompression stops. In these cases
Galileo automatically switches to the
CLASSIC configuration.
For all three configurations and in gauge
mode it is possible to call up the digital
compassatanytimeduring thedive. Itis
also possible to rotate the entire screen by
180degrees,sothatthecomputercanbe
worn with the buttons on the top or on the
bottom.
1. Introduction to Galileo
1. Introduction to Galileo
13
English
1.9 Button operation
Galileo has three buttons. These buttons
allow to access menus and change settings
while in surface mode. During the dive they
set bookmarks, allow to display further
information on the computer screen and
to activate the backlight. Each button can
perform two tasks, depending on whether
it is pressed or pressed and held (see
denitioninglossaryinsection1.1).
The abbreviated description on the display
under each button refers to its function
when pressed. The function performed
by pressing and holding each button is
described only in the manual.
1.10 Button functions on the
surface
Pressingthe“MENU”buttongivesaccess
to the list of menus. Pressing and holding
the “MENU” button jumps straight to the
oxygen setting menu.
Pressing the “LOG” button jumps
straight to the logbook menu. Pressing
and holdingthe “LOG” button brings up
the gas summary table, followed by the
picture-viewingfunction.
Pressing the “LIGHT” button activates
the
backlight. Pressing and holding
the
“
LIGHT
”
button accesses the digital
compass.
Left
button
(MENU)
Middle
button
(LOG)
Right
button
(LIGHT)
Press Main
menu
Logbook Activate
backlight
Press
and
hold
Oxygen
setting
Gas
summary
table,
then
pictur
viewing
function
Digital
compass
1.11 Mounting and pairing
of the high-pressure
transmitter
Galileo can receive tank pressure
information via patented interference-free
communication from the UWATEC Smart
high pressure transmitter. The transmitter
needs to be mounted on a high-pressure
portofarst-stageregulator.
To mount the transmitter, first remove the
high-pressureportplugfromtherststage
regulator, then screw the transmitter in
place.
FNOTE:
- Do not hold the transmitter by the
plastic cap.
- Use an appropriate wrench to
tighten the transmitter.
The Smart transmitter communicates via
radio frequency with Galileo. For best
transmission, we recommend positioning
the transmitter as described in the pictures
below.
In order for Galileo to display the
pressure signal from a Smart transmitter,
1. Introduction to Galileo
14
1. Introduction to Galileo
rst a coded, interference-free line of
communication has to be established. This
step has to be performed only once for
each transmitter or when the battery in the
transmitter is replaced.
To pair Galileo to a transmitter proceed as
follows:
- Mounttherst-stageregulatorwiththe
Smart transmitter on a full tank.
- TurnonGalileo,ensureitisinthetime
of day display and place it in direct
contact with the transmitter.
- Openthetankvalve.
Uponpressurization,theSmarttransmitter
sends a pairing sequence to Galileo.
WhenGalileoreceivesthisinformation,the
displaychangestoshowalistingof2tank
designations. The tank designations are T1
and BUDDY. Tank T1 is your main tank.
The BUDDY designation allows you to
receive tank pressure information from your
divebuddy’sSmarttransmitter(ifequipped
with one) and to display it on the screen
of your Galileo (see chapter 3 for more
information).
Usethe“”(left)and“” (middle)buttons
to select the tank that you want to assign
to the transmitter, then press “SAVE”
(right button). Galileo will conrm the
pairing with the message PAIRING TO T1
SUCCESSFUL(orBUDDY).Ifyoudonot
wish to complete the operation, press and
hold the right button and Galileo will show
the message PAIRING CANCELLED. The
pairing will also be cancelled if you do not
press “SAVE”within3minutes.
FNOTE:
- The transmitter must have
been unpressurized for at least
40 seconds prior to the pairing
operation, else it will not transmit
the pairing sequence.
- A transmitter can only be paired
to one tank designation. If you pair
the same transmitter to a second
tank designation, the first one will
be erased. However you can pair
more than one Galileo to the same
transmitter.
- Pairing between Galileo and a
transmitter can be removed via
SmartTRAK.
AfterasuccessfulpairingofT1toGalileo,
the display will show the tank pressure in
either BAR or PSI.IftankT1hasnotbeen
paired, Galileo will show NO P instead of a
pressure value. If T1 has been paired but
Galileo is not receiving any signal, it will
show---insteadofapressurevalue.
Onthesurface, thestatusoftheBUDDY
tank is shown in the gas summary table,
discussedinsection1.12.
1. Introduction to Galileo
15
English
1. Introduction to Galileo
FNOTE:
- The Smart transmitter has a range
of approximately 1.5m/5ft.
- To maximize the life of the battery,
the transmitter turns itself off when
there is no pressure change for
more than 40 seconds. It also
turns itself off when the pressure is
14bar/200psi or less.
- If a transmitter battery is weak,
Galileo alerts you with a screen
message referencing the tank
designation assigned to the
transmitter in question.
See Chapter 5 for information on how to
replace the battery.
1.12 Gas summary table
Galileo features a Gas summary table,
which shows tank pressure, oxygen
concentration,ppO2maxandMODforyour
tank and, if applicable, the tank pressure of
yourbuddy.Thisallowsyoutohaveaquick
overview on the surface before starting the
dive.
FNOTE:
In order to receive tank information,
the pertinent transmitters must be on
and within range (1.5m/5ft) of your
Galileo.
The Gas summary table can be reached
from the Gas integration menu (see
section 2.8.2) or simply by pressing and
holdingthemiddlebutton(marked“LOG”)
while in time of day display.
1.13 PDIS
1.13.1 Introduction to PDIS (Profile-
Dependent Intermediate Stop)
The main purpose of a dive computer is to
track your nitrogen uptake and recommend
a safe ascent procedure. Diving within the
socalledno-stop limitsmeansthatatthe
end of the dive you can ascend directly to
the surface, albeit at a safe ascent rate,
while for dives outsideoftheno-stoplimit
(so-calleddecompressiondives),youmust
perform stops at certain depths below the
surface and allow time for excess nitrogen
to be expelled from your body before
finishing the dive.
Inbothcases,it canbebenecialtostop
for a few minutes at an intermediate depth
between the maximum attained depth
during the dive and the surface or, in case
ofadecompressiondive,therst(deepest)
decompression stop.
An intermediate stop of this kind is beneficial
as soon as the ambient pressure at that
depth is low enough to ensure that your
body is predominantly offgassing nitrogen,
even if under a very small pressure gradient.
Insuchasituation,youcanstillcruisealong
the reef and enjoy the dive, while your body
gets a chance to slowly release nitrogen.
Inrecenttimes,socalled“deep”stopshave
been introduced in some dive computers
and tables, defined as half the distance
from the maximum reached depth and
the surface (or the lowest decompression
stop). Spending 2 or 15minutes at
1. Introduction to Galileo
1. Introduction to Galileo
16
30m/100ft would result in the same deep
stopof15m/50ft.
WithPDIS,asthenamesuggests,Galileo
interprets your dive profile and suggests
an intermediate stop that is a function of
yournitrogenuptake so far. The PDI stop
will therefore change through the course of
thedivetoreectthecontinuoslychanging
situation in your body. Along the same lines,
PDIS will account for the accumulated
nitrogen from previous dives, hence
PDIS is also repetitive-dive dependent.
Conventionaldeepstopscompletelyignore
these facts.
The following gure quanties the extent
of PDIS and illustrates its dependence on
cumulative nitrogen uptake for two sample
dive profiles. This figure also demonstrates
the conceptual difference between PDIS
andtheratherrudimental“deep”stops.
Specifically, the figure compares two dive
prolestoamaximumdepthof40m/132ft
butotherwiseverydifferent.Prole1stays
at40m/132ftfor 7minutes, then ascends
to 30m/100ft for 3minutes, followed by
12minutes at 20m/65ft. Prole2 stays
less than two minutes at 40m/132ft, then
ascends to 21m/69ft and stays there for
33minutes.Bothdiveprolesareno-stop
dives to the limit of entering decompression.
The solid line with triangles represents the
PDISdepthasdisplayedonthecomputer
screen during the course of the dive for
prole1, the dotted line with triangles
representsthePDISdepthasdisplayedon
the computer screen during the course of
prole2. One can see that the displayed
PDIS depth increases as more nitrogen
is accumulated in the body, but does so
very differently in the two dives due to the
different exposure in the two profiles. The
PDI stop is carried out at 25minutes for
prole1 and at 37minutes for prole2,
followedbythesafetystopat5m/15ft.
The solid line with open circles on the other
hand represents the depth that would be
displayed by a computer following the
conventional deep stop method, and it
would be the same for the two dive profiles.
Deep stops completely ignore any facts
about the dives themselves aside for the
max depth.
1. Introduction to Galileo
1. Introduction to Galileo
17
English
1.13.2 How does PDIS work?
The mathematical decompression model in
Galileo,calledZH-L8ADTMBPMG,tracks
your decompression status by dividing
your body into 8so-called compartments
and mathematically following the uptake
and release of nitrogen in each with the
appropriate laws of physics. The various
compartments simulate parts of your body
such as central nervous system, muscles,
bones, skin and so on.
ThedepthofthePDIstopiscalculatedas
that at which the leading compartment for
the decompression calculation switches
from ongassing to offgassing, and the
diver is advised to perform a 2-minute
stop abovethedisplayeddepth(thisisthe
opposite of a decompression stop, where
you are asked to remain just beneath the
displayed depth). During this intermediate
stop, the body is not taking up any more
nitrogen in the leading compartment, but
rather releasing nitrogen (though under
a very small pressure gradient). This,
combined with the relatively high ambient
pressure, inhibits bubble growth.
It should be noted that the two fastest
compartments, with 5 and 10minutes
half times respectively, are not considered
for the determination of the PDI stop
depth. This is due to the fact that these
compartments are only “leading” for very
short dives, for which an intermediate stop
isnotrequiredatall.
FNOTE:
The PDI stop is not a mandatory
stop and it is NOT a substitute for the
3-5 minute safety stop at 5m/15ft.
!WARNING
Even when performing a PDI stop, you still
MUST perform a safety stop at 5m/15ft for 3 to
5 minutes. Performing a 3 to 5 minute stop at
5m/15ft at the end of any dive is still the best
thing you can do for yourself!
1.13.3 Special considerations when
diving with more than one gas
mixture (PMG)
Switching to a higher oxygen concentration
mixduringthediveinuencesthePDIstop.
This needs to be accounted for, in line with
the predictive nature of multigas handling in
ZH-L8ADTMBPMG.
When diving with more than one gas
mixture, Galileo displays the PDIS depth
according to the following rules:
- ifthePDIstopcalculatedforthebottom
mix(gas1)isdeeperthantheswitch
depth, than this calculated value is
displayed;
- ifthePDIstopcalculatedforgas1
is shallower than the switch depth to
thenextgas(gas2orgasd),thenthe
displayedPDIstopisafunctionofthe
next gas.
In case of a missed gas switch, Galileo
reverts to the PDI stop for the actively
breathed mix.
1.14 Turning off Galileo
Galileo turns off automatically after
3minuteswithoutoperation.Whenintime
of day display, it can also be turned off
manually by pressing and holding the left
and right buttons simultaneously.
2. Menus, settings and functions
18
2. Menus, settings and functions
2. MENUS, SETTINGS AND FUNCTIONS
Galileo’s menus allow you to access functions or to change settings. To access the main
menu press “MENU”.Fromhere,youcanscrollthroughtheentirelistbypressingthe“”
(leftbutton)or“”(middlebutton).Somemenus,suchasDive settings, have submenus.
Ineverymenuorsubmenu,thehighlightedsectionindicatesthecurrentlyactiveentity.
Listedbelowareallavailablemenus.
Menu Description Page
O2setting Allows to set the oxygen concentration (Nitrox), the
ppO2maxandtoviewtheMOD.
19
Dive settings Allows to set all dive-related parameters: MB level,
gauge mode, safety stop timer, ppO2max, Nitrox reset
time,watertype.Italsoallowstoresetthedesaturation
andtoturnontheall-silentmode.
20
Digital compass Allows to use the compass on the surface, to set the
auto-off time and also to set a declination value to
correct between magnetic North and true North.
23
Altimeter Shows altitude and allows to set altitude with respect to a
known reference.
24
Warningsettings Allows to turn on or off the warning messages individually. 25
Clocksettings Allowstosetthewake-upalarm,time,timeformat,date
andtimezone(UTC).
33
Othersettings Allows to set the parameters for the gas integration, the
duration of the backlight time, to change the contrast
ofthedisplay,tochangetheIrDAspeed,totogglethe
water contacts on and off, and to reset all settings from all
menustothefactorydefaults.Italsoshowsinformation
about the software and hardware of the dive computer.
34
Personalization Allows to set the screen configuration, the language,
the start-up picture, the unit system, the workload
estimation, to show the owner information and the
emergency message.
37
Pictures Allows to display all the pictures stored on the dive
computer.ThepicturesmustbeuploadedfromaPCvia
SmartTRAK.
39
Dive planner Allows to plan no-stop or decompression dives with
freely selectable surface intervals.
39
Logbook Allows to review your past dives. 40
This manual suits for next models
1
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