SubGear XP-3G User manual

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XP-3G

1
English
SAFETY CONSIDERATIONS
You must carefully read and understand this entire manual before using your Subgear XP-3G.
WARNING
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 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 Subgear XP-3G.
Guidelines for the use of Subgear XP-3G
The following guidelines for using Subgear XP-3G 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.
•SubgearXP-3Gisdesignedfordiveswithcompressedair(21%O2)andNitrox(22to
100%O2)only.DonotuseSubgearXP-3Gfordivesmadewithothermixedgases.
•Itisabsolutelynecessarytocheckthesetmixturebeforeeachdiveandtocompareit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fromthemeasured
mixturemustnotexceed1%O2.Anincorrectgasmixturecanbelethal!
•OnlyuseSubgearXP-3Gfordivingwithanindependentbreathingapparatus.
SubgearXP-3GisnotdesignedforlongtermexposureswithNitrox.
•Alwaysobservethevisualandaudiblealarmsignals.Avoidsituationsofincreasedriskwhich
aremarkedwithawarningsigninthisoperatingmanual.
•SubgearXP-3GhasappO2warning.Thedefaultlimitissetat1.4barppO2max.Itcanbe
changedbetween1.2and1.6bar.
•Frequentlycheckthe“oxygenclock”(CNSO2).AscendandfinishthediveiftheCNSO2
exceeds75%.
•NeverdivedeeperthantheMaximumOperatingDepth(MOD)pertinenttothegasmixturein
use.
•Alwayscheckthedivinglimitsconsideringtheoxygencontentandstandardsportsdiving
procedures(decompressionsickness,oxygentoxicity).
•Inaccordancewiththerecommendedmaximumdivinglimitofallinstructionalagencies,do
notdivedeeperthan40metres/130feet.
•Thedangerofnitrogennarcosishastobetakenintoconsideration.SubgearXP-3Ggivesno
warningaboutthis.
•Onalldives,withorwithoutdivecomputer,makeasafetystopforatleast3minutesat
5metres(15feet).
•Alldiversusingdivecomputerstoplandivesandindicateordeterminedecompressionstatus
mustusetheirowncomputer,whichtheytakewiththemonalldives.
•IfSubgearXP-3Gfailsatanytimeduringthedive,thedivemustbeterminated,and
appropriatesurfacingprocedures(includingaslowascentanda3to5minutesafetystopat
5metres/15feet)shouldbeinitiatedimmediately.
•Complywiththeascentrateandcarryoutanydecompressionstoprequired.Ifthecomputer
shouldfailforanyreason,youmustascendatarateof10m(30ft)perminuteorless.
•Onanygivendive,bothdiversinabuddypairmustfollowthemostconservativedive
computerforthatparticulardive.
•Neverdivewithoutabuddy.SubgearXP-3Gdoesnotsubstituteforadivebuddy.
•Onlymakedivesthatareappropriatetoyourlevelofdivetraining.SubgearXP-3Gdoesnot

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increaseyourknowledgeofdiving.
•Alwaysdivewithback-upinstruments.Makesurethatyoualwaysuseback-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.
•Avoidrepeatedascentsanddescents(yoyodiving).
•Avoidrepeatedheavyworkloadwhileatdepth.
•Planthedivestobeshorteriftheyaremadeincoldwater.
•Afterfinishingthedecompressionorattheendofano-stopdive,thefinalstageofthe
ascentshouldbeasslowaspossible.
•YouMUSTbefamiliarwithallsignsandsymptomsofdecompressionsicknessbefore
usingSubgearXP-3G!SeekIMMEDIATEtreatmentfordecompressionsicknessshould
any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.
•OnlydivewithNitroxafteryouhavebeenthoroughlyinstructedbyarecognized
institution.
Repetitive dives
•DonotstartyournextdivebeforeyourCNSO2%statushasdroppedbelow40%.
•WhendivingwithNitrox,makesureyoursurfaceintervalislongenough(justlikediving
withcompressedair).Planforaminimumsurfaceintervaloftwohours.Oxygen,too,
needssufficienttimetoleavethebody.
•Matchgasmixturetotheintendeddive.
•Donotattemptarepetitivediveiftheno-divewarning isvisibleonthedisplay.
•Planadaywithoutdivingonceaweek.
•Ifyouhavetochangecomputers,waitatleast48hoursbeforecarryingoutyournext
dive.
•Divingafteraresetoftheremainingsaturation(reset,seepage90,orbattery
replacement,seepage99)mayleadyouintopotentiallyhazardoussituationswhich
couldresultindeathorseriousinjury.Afteraresetoftheremainingsaturationdonot
diveforatleast48hours.
Altitude and diving
•Donotdiveataltitudeshigherthan4000m(13000ft).
•AfteradivedonotrisetoaltitudesthatSubgear XP-3G prohibits
via the flashing altitude range number (see page 38).
Flying after diving
•Afterdiving,waitatleast24hourspriortoflying.
Subgear XP-3G dive instrument is a personal protective equipment in compliance with the essential safety requirements
of the European Union directive 89/686/EEC. RINA SpA, Via Corsica 12, I-16128 Genoa, notified body no. 0474, have
certified the conformity with the European Standard EN 13319:2000.
EN13319:2000 Diving accessories - Depth gauges and combined depth and time measuring devices - Functional and
safety requirements, test methods. Any information on decompression obligation displayed by equipment covered by this
standard is explicitly excluded from its scope.
6. 2013

3
English
TABLE OF CONTENTS
Guidelines for the use of Subgear XP-3G.............................................................1
1. Introduction .............................................................................................................6
2. System and operation ..........................................................................................10
2.1 System description..................................................................................10
2.2 Operation ................................................................................................10
2.2.1 Push buttons ...........................................................................10
2.2.2 Water contacts.........................................................................11
2.2.3 Dive.Log .................................................................................12
2.2.4 Switching on the display .........................................................15
2.2.5 How to navigate Subgear XP-3G at the surface .......................16
2.2.6 Checking the desaturation time................................................16
2.2.7 Checking the surface interval ...................................................17
2.2.8 Displaying the date ..................................................................17
2.2.9 Checking the battery condition.................................................17
2.2.10 Active backlight .....................................................................19
2.2.11 Switching off the display...........................................................19
2.2.12 Alarm clock..............................................................................19
2.3 SOS mode ..............................................................................................20
3. Diving with Subgear XP-3G..................................................................................21
3.1 Terminology / Symbols ............................................................................21
3.1.1 General terminology / Display during no-stop phase .............21
3.1.2 Display during decompression phase.......................................22
3.1.3 Nitrox information (O2information).............................................22
3.2 Attention messages and alarms...............................................................23
3.3 Preparation for the dive ...........................................................................24
3.3.1 Setting the gas mixture and ppO2max ............................24
3.3.2 Setting the MB level..........................................................25
3.3.3 Preparation for diving with 2 or 3 gas mixtures ....................25
3.3.4 Preparation for diving with CCR ...............................................26
3.3.4 Preparation for the dive and function check..............................26
3.4 Functions during the dive ........................................................................26
3.4.1 Immersion................................................................................26
3.4.2 Setting bookmarks...................................................................26
3.4.3 Dive time .................................................................................27
3.4.4 Current depth / O2% mix..........................................................27
3.4.5 Max depth / Temperature.........................................................28
3.4.6 Ascent rate ..............................................................................29
3.4.7 Partial pressure of oxygen (ppO2max) / Maximum Operating
Depth (MOD)............................................................................30
3.4.8 Oxygen toxicity (CNS O2%) .......................................................31
3.4.9 Nitrogen loading bar graph.......................................................32
3.4.10 Decompression information......................................................32
3.4.11 Safety stop timer......................................................................35
3.5 Functions at the surface ..........................................................................35
3.5.1 End of a dive............................................................................35
3.5.2 Residual nitrogen bar graph .....................................................36

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3.5.3 Desaturation time, No-fly time and No-dive warning.................36
3.6 Diving in mountain lakes ..........................................................................38
3.6.1 Altimeter ..................................................................................38
3.6.2 Altitude ranges.........................................................................38
3.6.3 Prohibited altitude ....................................................................39
3.6.4 Decompression dives in mountain lakes...................................40
4. Gauge mode ..........................................................................................................41
5. Apnea mode ..........................................................................................................44
5.1 Switching the Apnea mode on and off.....................................................44
5.2 Diving in Apnea mode .............................................................................45
6. Diving with microbubble (MB) levels...................................................................46
6.1 Comparison of dives with MB level L0 and MB level L5 ...........................47
6.2 Terminology.............................................................................................47
6.2.1 Display during MB no-stop phase ............................................47
6.2.2 Display during level stop phase ................................................48
6.3 Preparation for a dive with MB levels .......................................................49
6.3.1 Setting the MB level .................................................................49
6.4 Functions during the dive with MB levels .................................................49
6.4.1 Level stop information ..............................................................49
6.4.2 Total time of ascent..................................................................51
6.4.3 Decompression obligation........................................................52
6.4.4 Level stop and deco stop.........................................................53
6.5 Complete a dive with MB levels...............................................................53
7. PDIS (Profile Dependent Intermediate Stop)......................................................54
7.1 Introduction to PDIS (Profile-Dependent Intermediate Stop).....................54
7.2 How does PDIS work? ............................................................................55
7.3 Special considerations when diving with more than one gas mixture
(Subgear XP-3G) .....................................................................................56
7.4 Diving with PDIS......................................................................................56
8. Diving with 2 or 3 gas mixtures ......................................................................59
9. CCR Diving ............................................................................................................66
Preparation for the CCR dive .............................................................................66
Setting the ppO2and gas mixture .........................................................66
Functions during a CCR dive .............................................................................69
9. Dive planner ..........................................................................................................76
9.1 Planning a no-stop dive...........................................................................77
9.2 Planning a decompression dive ...............................................................78
9.3 Leaving the dive planner..........................................................................79
10. Logbook.................................................................................................................80
10.1 Survey.....................................................................................................80
10.2 Operation ................................................................................................80

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English
11. Settings..................................................................................................................84
11.1 Altitude adjustment..................................................................................84
11.2 Menu “set 1” ...........................................................................................84
11.3 Menu “set 2” ...........................................................................................91
11.4 Menu “set 3” (Apnea)...............................................................................95
12. Appendix................................................................................................................99
12.1 Technical information...............................................................................99
12.2 Maintenance ...........................................................................................99
12.2.1 Replacing the battery ...............................................................99
12.3 Warranty................................................................................................102
12.4 Index.....................................................................................................103

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1. INTRODUCTION
Congratulations on purchasing Subgear XP-3G and welcome to SUBGEAR. From now on you will enjoy
the assistance of the most extraordinary dive computer - equipped with SUBGEAR’s most innovative
technology - while diving.
Subgear XP-3G enables you to use up to 3 different gas mixtures during the same dive. However, for
an easy reading this manual mainly refers to dives with a single gas mixture. Information for diving with
more than 1 gas mixture is marked with or has been summarized in special chapters.
We thank you for choosing Subgear XP-3G and we hope you will enjoy safe dives in the future! Further
information on SUBGEAR dive computers and other products by SUBGEAR can be found on our web
page at www.subgear.com.
Safety considerations
Dive computers provide divers with data; they, however, do not provide the knowledge how this data
should be understood and applied. Dive computers cannot replace common sense! You must therefore
carefully read and understand this entire manual before using your Subgear XP-3G.
Important remarks concerning signal words and symbols
This operating manual makes use of the following icons to indicate especially important comments:
NOTE:
Information and tips which are important for optimal use of the functions of Subgear XP-3G.
Danger!
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
The following symbols are used in the operating manual:
Flashingdisplay
-> Page reference e.g. ->10
Valid only for dives with 2 / 3 gas mixtures
Audible signals
4 s Audible attention signal
Audiblealarmsignal

7
English
Instructions for manual input
 Pressleftpushbutton
 Pressandhold(1second)
leftpushbutton
 Pressright
pushbutton
 Press
andhold
(1second)
rightpush
button
 Pressandhold(1second)both
pushbuttons
Alternate displays
By pushing during the dive you can scroll through alternate displays.
How to get back to the first display:
•scrollingwith throughthedisplays
•after5seconds:automaticallyifmarkedwith 
•after5seconds:directlybypushing1x 
E.g. Max depth > Temperature > Temperature, Time > Max depth
 Timeoutafter5secondswithoutoperation.Displayswitchesbacktooriginal
indication.

8
Quick reference
MB level icon
(input / MB level reduced)
O2mix icon (input)
Current depth
Altitude sections
Too fast
ascent
Max depth
Temperature
MB level
Maximum Operating
Depth (MOD)
Average depth
Dive number
Setting icon
Service icon
Logbook icon
AM/PM icon
Desaturation icon
Do not y icon
Dive time / No-y time /
SOS duration
Repetitive dive number
No-stop time / Total ascent time
MB no-stop time
Time of day / Date
Decompression depth / Level stop depth
Desaturation time (DESAT)
Duration of no-dive warning
Duration of surface interval
Partial pressure of oxygen ppO2
Ascent time icon
No-stop indicator
Level stop indicator
Decompression stop
obligation / Ignored
decompression stop
Decompression stop
indicator
Gauge icon
Average
depth icon Icon for stopwatch and safety stop timer
No-dive warning
O2mix
Oxygen toxicity CNS O2%
Ascent rate
Alarm clock icon / Infrared icon
Battery icon
Nitrogen loading bar (dive)
Residual Nitrogen bar (surface)
Desaturation
Battery condition
Decompression stop duration
Level stop duration
PDIS icon
Apnea
icon
AMPM
DESAT
Operating scheme
“->” means “more information at page”
Enter
/ Scroll/Change
setting
Backlight
Exit
Without operation the display
switches automatically back
to the time of day display and
after 3 minutes the display
switches off.
on
off
CCR
on
off
CCR
/
//
Off
SP1
ppO2%
->66
Gas 1
O2%
->24
SP2
ppO2%
->66
Gas 2
O2%
->24
Bail
O2%
->68
Gas d
O2%
->59
MB Level
L0-L5 ->46
Dive mode selection
(Algo): deco/gauge/
APNEA ->44
Altitude
adjustment
->84
Set 2
->91
Set 1
->84
Dive
planner
->76
Logbook
->80
Time of day display
•(Desat.timeCNSO2% ) ->16
•Date ->17
•Batterycondition ->17
•Alarmclock - > 92
•UTCtimezone - > 92
•Timeofday - > 92
•24h/AMPM - > 93
•Date - > 93
•Displaycontrast - > 94
•IrDAspeed - > 94
•Soundon/off - > 94
•ElectronicID - > 95
•CCRon/off - > 85
•Depthalarm - > 85
•Divetimealarm - > 86
•Safetystopduration - > 86
•ppO2 max - > 86
•Resettoair - > 86
•Decogason/off - > 87
•PDIS - > 87
•Unitsystem - > 87
•Sait/freshwater - > 88
•Backlightduration - > 88
•Attentionbeepon/off -> 89
•Watercontactson/off -> 90
•Resetdesaturation - > 90
•DualDepthalarm ->96
•Incrementaldepth
alarm ->96
•Divetimeinterval
warning ->97
•Surfaceinterval
warning ->97
•Ascentspeedalarm ->98
•Waterdensity ->98
Set 3
->91
(Apnea)
See also page 16