SCUBAPRO GALILEO, G2 User Manual
Galileo 2
(G2)
User Manual
®
2
GALILEO 2 (G2) USER MANUAL
GALILEO 2 (G2) USER MANUAL
The G2 Diving Computer – Designed for all kinds of diving.
Welcome to SCUBAPRO dive computers and thank you for purchasing the G2. You are now
the owner of an extraordinary partner for your dives. This manual provides you easy access
to SCUBAPRO state-of-the-art technology and the G2’s key features and functions. Should
you wish to know more about SCUBAPRO diving equipment, please visit our website
www.scubapro.com
IMPORTANT
Before using your SCUBAPRO G2, please carefully read and understand the Read First booklet that
is included in the package.
WARNING
• The G2 has a depth rating of 120m/394ft.
• At depths between 115m/377ft and 120m/394ft in dive computer mode the message SWITCHING
TO GAUGE appears on the display, and at depths over 120m/394ft the G2 automatically switches to
Gauge mode and cannot be used as a decompression computer for the remaining time 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.
• Never risk your life on only one source of information. Eventually, every computer has the potential
to fail, so do not depend exclusively upon it and always have a plan for how to handle failures. Use
a redundant dive computer, carry backup tables and depth/time instrumentation.
English
Hereby, Uwatec AG declares that the radio equipment type PAN1740 is in compliance with Directive 2014/53/EU.
The combination of SCUBAPRO Galileo 2 and SCUBAPRO high pressure transmitter is a personal protective equipment
in compliance with the essential safety requirements of the European Union Regulation 2016/425. The notified body
no.0474, RINA SpA, Via Corsica 12, I-16128 Genoa, Italy, has completed the EC type-examination to the combination
mentioned above and assured the conformity with the European Standard EN250:2014.
The G2 dive instrument is also compliant with the European Union directive 2014/30/EU.
The full text of the EU declaration of conformity is available at www.scubapro.com/declarations-conformity.
Standard EN 13319: 2000
EN13319 is a European diving depth gauge standard. SCUBAPRO dive computers are designed to comply with this
standard.
GALILEO 2 (G2) USER MANUAL
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TABLE OF CONTENTS
1 . Introduction to the G2 .......................................................................................... 8
1 .1 Power concept and charging ........................................................................... 8
1 .2 Li-ion Battery Safety Instructions .................................................................... 10
1 .3 Operating modes ........................................................................................... 10
1 .4 Switching on the G2 ....................................................................................... 11
1 .5 No-Dive warning ............................................................................................ 13
1 .6 No-Fly time ..................................................................................................... 13
1 .7 SOS ............................................................................................................... 13
1 .8 Emergency information ................................................................................... 14
1 .9 Owner information .......................................................................................... 14
1 .10 Mounting and pairing the high pressure transmitter ........................................ 14
1 .11 Pairing a pony bottle to the G2 ...................................................................... 17
1 .12 SCUBAPRO Human Factor Diving
1 .13 Turning off the G2 ........................................................................................... 17
2 . G2 settings and menus ...................................................................................... 18
2 .1 O
settings ..................................................................................................... 20
2
2 .1 .1 Recreational (factory setting) .............................................................. 20
2 .1 .2 Multi-gas (PMG) settings .................................................................... 20
2 .1 .3 Trimix settings .................................................................................... 21
2 .1 .4 Sidemount settings ............................................................................ 21
2 .1 .5 CCR settings ..................................................................................... 21
2 .1 .6 MOD setting ...................................................................................... 22
2 .2 Dive settings ................................................................................................... 22
2 .2 .1 MB-level ............................................................................................ 22
2 .2 .2 Dive mode (Algorithm selection) ......................................................... 23
2 .2 .3 Safety stop timer ............................................................................... 23
2 .2 .4 ppO2 max .......................................................................................... 23
2 .2 .5 Water type ......................................................................................... 23
2 .2 .6 Nitrox reset time ................................................................................ 24
2 .2 .7 Max surface time ............................................................................... 24
2 .2 .8 OTU settings ..................................................................................... 24
2 .2 .9 Desaturation reset ............................................................................. 25
2 .2 .10 All-silent mode ................................................................................... 26
2 .2 .11 Activating Sidemount ......................................................................... 27
2 .2 .12 Activating CCR .................................................................................. 27
2 .2 .13 Activating Trimix ................................................................................. 28
2 .2 .14 Enabling PDIS ................................................................................... 28
2 .2 .15 Activating PMG ................................................................................. 28
2 .3 Apnea dive ..................................................................................................... 28
2 .3 .1 Setting the maximum dual depth alarm .............................................. 29
2 .3 .2 Setting the depth incremental warning ............................................... 29
2 .3 .3 Setting the dive time interval warning ................................................. 30
2 .3 .4 Setting the surface interval warning ................................................... 30
2 .3 .5 Low HR alarm ................................................................................... 30
2 .3 .6 Setting the ascent speed alarm ......................................................... 30
2 .3 .7 Water density .................................................................................... 31
2 .4 Digital compass .............................................................................................. 31
2 .4 .1 Accessing and using the digital compass .......................................... 32
2 .4 .2 Auto-off time ...................................................................................... 33
2 .4 .3 Declination ......................................................................................... 33
2 .5 Altimeter ......................................................................................................... 34
TM
............................................................... 17
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GALILEO 2 (G2) USER MANUAL
2 .6 Warning settings ............................................................................................ 34
2 .6 .1 Maximum dive depth warning ........................................................... 34
2 .6 .2 CNS O2=75% .................................................................................... 35
2 .6 .3 No-stop time = 2 min ........................................................................ 35
2 .6 .4 Entering deco .................................................................................... 35
2 .6 .5 Maximum dive time warning .............................................................. 35
2 .6 .6 Tank pressure .................................................................................... 35
2 .6 .7 RBT = 3 min ...................................................................................... 36
2 .6 .8 Pressure signal .................................................................................. 36
2 .6 .9 Entering level stops ........................................................................... 36
2 .6 .10 MB stop ignored ................................................................................ 37
2 .6 .11 MB level reduced ............................................................................... 37
2 .6 .12 L0 no stop time = 2 min .................................................................... 37
2 .6 .13 Entering deco at L0 ........................................................................... 37
2 .7 Clock settings ................................................................................................ 38
2 .7 .1 Wake-up alarm .................................................................................. 38
2 .7 .2 T ime ................................................................................................. 38
2 .7 .3 T ime zone ......................................................................................... 38
2 .8 Other settings ................................................................................................. 39
2 .8 .1 Device information ............................................................................. 39
2 .8 .2 Gas integration .................................................................................. 39
2.8.2.1 Tank reserve ..........................................................................39
2.8.2.2 RBT warning or alarm ...........................................................40
2.8.2.3 Breathing sensitivity ..............................................................40
2.8.2.4 Bar graph .............................................................................40
2.8.2.5 Gas summary .......................................................................40
2.8.2.6 Pairing ..................................................................................41
2 .8 .3 Backlight duration .............................................................................. 41
2 .8 .4 Backlight intensity .............................................................................. 41
2 .8 .5 Water contacts .................................................................................. 41
2 .8 .6 Factory settings ................................................................................. 42
2 .8 .7 Feature upgrade ................................................................................ 42
2 .8 .8 Software update ................................................................................ 42
2 .8 .9 Format ash disk ............................................................................... 43
2 .9 Personalization ............................................................................................... 43
2 .9 .1 Screen conguration .......................................................................... 44
2 .9 .2 Language .......................................................................................... 44
2 .9 .3 Start-up picture ................................................................................. 44
2 .9 .4 Setting the user preferred units .......................................................... 44
2 .9 .5 Workload ........................................................................................... 45
2 .9 .6 Show owner info ................................................................................ 45
2 .9 .7 Emergency info .................................................................................. 45
2 .9 .8 Display color ...................................................................................... 46
2 .10 Pictures .......................................................................................................... 46
2 .11 Dive planner ................................................................................................... 46
2 .11 .1 No-stop plan ..................................................................................... 46
2 .11 .2 Decompression plan .......................................................................... 47
2 .12 Help ............................................................................................................... 47
2 .13 Bluetooth ...................................................................................................... 47
2 .14 Logbook ........................................................................................................ 47
English
GALILEO 2 (G2) USER MANUAL
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3 . Diving with the G2 ............................................................................................... 50
3 .1 Dive mode at surface ..................................................................................... 50
3 .1 .1 Recreational (factory setting) .............................................................. 50
3 .1 .2 Display conguration in PMG mode ................................................... 50
3 .1 .3 Display conguration in Trimix mode ................................................. 51
3 .1 .4 Display conguration in Sidemount mode .......................................... 51
3 .1 .5 Display conguration in CCR mode ................................................... 51
3 .1 .6 Surface interval, no dive and CNS% counters .................................... 51
3 .2 Button functions while diving .......................................................................... 52
3 .3 Altitude diving ................................................................................................. 54
3 .3 .1 Altitude classes and altitude warnings after a dive ............................. 54
3 .3 .2 Altitude and the decompression algorithm ......................................... 54
3 .3 .3 Prohibited altitude .............................................................................. 55
3 .3 .4 Decompression dives in mountain lakes ............................................ 55
3 .4 Diving with nitrox ........................................................................................... 56
3 .4 .1 Technical diving ................................................................................. 57
3 .4 .2 Diving with multiple gas mixtures ....................................................... 58
3 .4 .3 Diving with Trimix mode ..................................................................... 62
3 .4 .4 Diving with Sidemount mode ............................................................ 64
3 .4 .5 Diving with CCR mode ..................................................................... 64
3 .5 Warnings and alarms ...................................................................................... 66
3 .5 .1 Warning settings ................................................................................ 66
3 .5 .2 Maximum depth ................................................................................ 66
3 .5 .3 CNS O2 = 75% .................................................................................. 66
3 .5 .4 No-Stop time = 2 min ........................................................................ 66
3 .5 .5 Entering decompression .................................................................... 67
3 .5 .6 Dive time ........................................................................................... 67
3 .5 .7 Tank pressure .................................................................................... 67
3 .5 .8 RBT = 3 min ...................................................................................... 67
3 .5 .9 Pressure signal .................................................................................. 68
3 .5 .10 Entering level stops ........................................................................... 68
3 .5 .11 MB stop ignored ................................................................................ 68
3 .5 .12 MB level reduced ............................................................................... 69
3 .5 .13 L0 no-stop = 2 min ............................................................................ 69
3 .5 .14 Entering decompression at L0 ........................................................... 69
3 .6 Alarms ............................................................................................................ 69
3 .6 .1 Ascent rate ....................................................................................... 70
3 .6 .2 MOD/ppO2 ........................................................................................ 71
3 .6 .3 CNS O2 = 100% ................................................................................ 71
3 .6 .4 Tank reserve pressure reached .......................................................... 72
3 .6 .5 Missed decompression stop .............................................................. 72
3 .6 .6 RBT = 0 min ...................................................................................... 72
3 .6 .7 Low battery ....................................................................................... 73
3 .7 Display information ......................................................................................... 73
3 .7 .1 Display conguration during the dive ................................................. 74
3 .7 .2 Setting bookmarks ............................................................................ 77
3 .7 .3 Stop watch timer ............................................................................... 77
3 .7 .4 Safety stop timer ............................................................................... 77
3 .7 .5 Backlight ........................................................................................... 77
3 .7 .6 Compass ........................................................................................... 77
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GALILEO 2 (G2) USER MANUAL
3 .8 Diving with MB levels ...................................................................................... 78
3 .8 .1 Comparison of dives with MB level L0 and MB level L9 ..................... 78
3 .9 PDIS (Prole Dependent Intermediate Stop) .................................................... 78
3 .9 .1 Introduction to PDIS ......................................................................... 78
3 .9 .2 How does PDIS work? ...................................................................... 80
3 .9 .3 Special considerations when diving with more than one gas mixture (G2) 80
3 .9 .4 Diving with PDIS ................................................................................ 80
3 .10 Gauge mode .................................................................................................. 81
3 .11 Apnea mode .................................................................................................. 82
4 . G2 accessories .................................................................................................... 83
4 .1 Bungee arm strap .......................................................................................... 83
4 .2 Wireless high pressure transmitter .................................................................. 84
4 .3 SCUBAPRO heart rate belt ............................................................................. 84
4 .4 Digital Heart Rate Monitor ............................................................................. 85
4 .5 Bluetooth USB stick ....................................................................................... 85
5 . Interfaces for the G2 and an introduction to LogTRAK .................................. 85
5 .1 Charging and using the G2 with a USB interface ............................................ 86
5 .2 Bluetooth connection ..................................................................................... 87
5 .2 .1 Connecting the G2 with LogTRAK ..................................................... 87
5 .2 .2 Download dive proles ....................................................................... 88
5 .2 .3 Changing warnings/settings on the G2, and reading computer info ... 88
5 .2 .4 USB ash disk operations .................................................................. 89
6 . Taking care of your G2 ....................................................................................... 90
6 .1 Technical information ...................................................................................... 90
6 .2 Maintenance .................................................................................................. 91
6 .3 Replacing the battery in transmitter ................................................................ 91
6 .4 Replacing the battery in the SCUBAPRO Heart Rate Belt ............................... 92
6 .5 Replacing the battery in the Digital Heart Rate Monitor .................................. 92
6 .6 Warranty ........................................................................................................ 93
7 . Compliance ......................................................................................................... 93
7 .1 EU Radio directive .......................................................................................... 93
7 .2 Diving ............................................................................................................. 93
7 .3 FCC & ISED regulatory notices ....................................................................... 93
7 .3 .1 Modication Statement ...................................................................... 93
7 .3 .2 Interference Statement ...................................................................... 93
7 .3 .3 W ireless Notice .................................................................................. 94
7 .3 .4 FCC Class B Digital Device Notice ..................................................... 94
7 .3 .5 CAN ICES-3 (B) / NMB-3 (B) ............................................................. 94
7 .4 Manufacturer .................................................................................................. 94
8 . Glossary ............................................................................................................... 95
English
GALILEO 2 (G2) USER MANUAL
7
The G2 is a technologically-advanced
instrument that can accompany you
during your underwater adventures while
providing you with accurate depth, time
and decompression information.
Your G2 User Manual is divided into 6 main
sections.
Introduction to the G2. This section
provides an overview of the G2 computer
and describes its operating modes and
main functions when on the surface.
G2 settings and menus. This section
goes through the settings of your G2.
Diving with the G2. This section takes you
underwater with the G2, showing you how
to use the G2 as a dive computer. It outlines
everything the G2 can—and will—do to
enhance your safety and fun underwater.
G2 accessories. This section briey
describes the G2’s extras that you can
purchase to get the most out of your dive
computer in all conditions.
Interfaces for the G2 and an
introduction to LogTRAK. This section is
all about personalization and customization.
It describes how to change settings, how
to download and how to manage your
logbook.
Taking care of your G2. This section
illustrates how to take care of your new dive
computer.
1 . INTRODUCTION TO
THE G2
1 .1 Power concept and
charging
The G2 is powered by a rechargeable
Li-Ion battery. SCUBAPRO recommends
fully charging the battery before using the
computer for the rst time.
To charge the battery, plug the power/USB
cable into your G2 as shown in the picture
below.
Then, connect the other end of the cable
to a USB charger, or a USB device capable
of providing power for charging. At this
point, the following battery charging status
symbols will appear on the display of the
G2.
NOTE: If the G2’s battery is deeply
F
discharged, nothing will appear on
the display screen until the battery
has reached a safe charge level
for a startup. If this occurs, do not
disconnect the USB, and do not try to
activate the G2 by pressing a button.
Simply leave the G2 charging for at
least half an hour.
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GALILEO 2 (G2) USER MANUAL
WARNING
Starting the dive with a weak battery may lead
to a situation where the G2 shuts off during
the dive. In case of such an event you should
always carry a backup instrument that will
enable you to complete the dive safely. If the
G2 switches off during a dive it will remain
locked in Gauge mode for 48 hours. (For more
information on Gauge mode operation, see
chapter: Gauge mode.)
English
Charging will continue, but the above
display will switch off after 3 minutes.
When the battery is completely charged,
the following display will appear.
The G2 will alert you when the battery is
approaching a critical discharge level by
displaying the following message.
NOTE: Storing the G2 with a low
F
battery may lead to a deep discharge
state, which shortens the life of the
battery.
WARNING
During the dive, when the battery charge level
indicator falls to only 1 segment, the display
will switch off automatically to save energy.
However, you can still check the display
manually by pressing the right button.
WARNING
The G2 will not start a dive when the battery
has reached the critical discharge level
indicated by the warning: “Charge battery!”
In this state you cannot use the G2 for diving.
In addition, the battery icon with current
charging status is shown above the main
time-of-day display.
GALILEO 2 (G2) USER MANUAL
9
1 .2 Li-ion Battery Safety
Instructions
WARNING
Failure to read, and follow Li-ion battery safety
instructions, and warnings may result in re,
personal injury, and property damages if the
battery is charged and/or used improperly.
• DO NOT SHORT CIRCUIT. Short circuits
may cause a fire and injury!
• Charge battery fully before first use.
• To charge the battery use only the
specifically designed USB charger,
provided in the packaging.
• Do not keep a bare battery in your
pocket, purse, or anywhere together
with other metal (conductive) objects.
• If the battery is damaged in any
way stop using the dive computer
immediately.
• Do not immerse in any liquid or allow
the battery to get wet.
• Do not place the battery in highpressure containers, microwave ovens,
or on induction cookware.
• Immediately discontinue use if, while
using, charging or storing, the battery
emits an unusual smell, feels hot,
changes color or shape, or appears
abnormal in any other way.
• Do not carry, or store the batteries
together with any conductive metal
objects.
• Do not expose the battery to excessive
sunlight or heat.
• Do not disassemble, or modify the
battery.
• Keep the battery away from children,
and pets.
• Never charge, or store the batteries
inside your car in extreme temperature.
Extreme temperatures (low or high)
might ignite the battery, and cause a
fire.
• Do not connect positive, and negative
battery contacts intentionally, or
unintentionally.
• Do not reverse the positive (+) and
negative (-) terminals when charging, or
using the battery.
• Never charge the battery at a current
exceeding manufacturer-specified
charging current.
• Never completely discharge the Li-ion
battery.
• After the battery is discharged, don’t
leave it discharged. Charge battery as
soon as possible
• It is your responsibility to determine
that your charger and host device work
properly.
• On battery electrolytes exposure to skin,
flush with water immediately.
• If eye exposure occurs, flush with water
for 15 minutes, and seek emergency
care immediately.
• When your Li-ion battery reaches
the end of its lifetime, it can only be
replaced by an authorized SCUBAPRO
service center. Do not open your dive
computer or try to replace the battery
yourself!
1 .3 Operating modes
The G2 has 4 operating modes:
• Charging and USB communication
mode. When connected to a USB
device the G2’s battery automatically
starts charging. At the same time, you
can access either the flash memory
or the logbook using the LogTRAK
program.
• Sleep mode. In this mode the display is
off, but the G2 still updates desaturation
and monitors ambient pressure for
altitude changes, etc. This mode is
activated automatically at the surface
after 3 minutes without operation.
• Surface mode. After a dive or when
manually activated, the display is on
and you can change settings or operate
the G2 with its buttons. The Bluetooth
interface can be activated in this mode.
• Dive mode. This mode is activated
when the computer reaches a depth
of 0.8m/3ft or more. In this mode the
G2 monitors depth, time, temperature
and wireless sensors. Decompression
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GALILEO 2 (G2) USER MANUAL
calculations are performed in this mode.
1 .4 Switching on the G2
To switch on the G2, press the right button.
NOTE: You cannot turn the G2 on
F
when it is connected to USB.
The initial activation of your G2 will require
some basic set up (selecting language,
setting the time, etc.). The G2 will guide
you through them. Simply follow the screen
prompts while using the buttons.
NOTE: The following basic setup will
F
also be required if you reset the G2
with the menu 8.6. Factory settings.
Press the right button.
English
Select each unit with the left or middle
button, and conrm it with the right button.
Set the time zone with the left or middle
button and conrm it with the right button.
After this initial setup, your G2 will boot to
the so-called main time-of-day display.
This is the display in which the current time
is shown in the main eld.
Select your language with the left or middle
button. Then conrm your selection with a
press of the right button.
GALILEO 2 (G2) USER MANUAL
11
You G2’s button functions can be found
on-screen. To illustrate, the screen above
shows that pressing the left button will
take you to the main menu, pressing the
middle button will take you to the logbook
LEFT BUTTON MIDDLE BUTTON RIGHT BUTTON
Press Press and hold Press
and pressing the right button will dim the
display light.
However, be aware that these function
labels may change depending on the
operational mode you’re currently in.
NOTE: There are two methods for
F
pressing the G2’s buttons:
1. “Short” press. This is the normal
method used in most cases with the
labelled functions.
2. “Press-and-hold.” This method is
used only in special cases. They are
described in this manual but are not
labelled on the screen.
Button functions at the surface are
summarized in the following table.
Press and
hold
Press
Press and
hold
Main menu Oxygen setting Logbook
SCUBA, GAUGE
Pictures
Main menu
APNEA
Manual start of
a dive
Logbook Pictures Backlight Compass
Gas summary
table
Backlight Compass
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GALILEO 2 (G2) USER MANUAL
1 .5 No-Dive warning
If the G2 detects a situation of increased risk
(due to potential microbubble accumulation
from previous dives or a CNS O2 level above
40%), the NO DIVE symbol will appear to
advise you against performing another dive
right away. The suggested time interval
that you should wait prior to diving again is
shown on the dive mode display, adjacent
to the
You should not undertake a dive as long
as the no-dive warning is displayed on the
dive computer’s screen. If the warning is
prompted by microbubble accumulation
(as opposed to CNS O
you dive anyway, you will have shorter nostop times or longer decompression times.
Moreover, the duration of the microbubble
warning at the end of the dive can increase
considerably.
symbol.
over 40%) and
2
1 .6 No-Fly time
The no-y time (NO FLY) is the time during
which an exposure to the reduced pressure
(equal to ascending at higher altitudes)
inside the cabin of an airplane could cause
decompression sickness, as calculated by
the decompression model in the computer.
The no-y text with countdown timer is
shown until the restriction is completed.
To learn more about altitude warnings
and altitude diving, see chapter: Altitude
diving.
WARNING
Flying while the G2 displays the NO FLY
symbol and countdown timer can result in
serious injury or death.
1 .7 SOS
If you stay above a depth of 0.8m/3ft for
more than 3 minutes without observing
a mandatory decompression stop, the
G2 will switch into SOS mode. Once in
SOS mode the G2 will lock up and will
be inoperable as a decompression dive
computer for 24 hours if it was dived
in Scuba mode. If it is used for diving
within the 24hours of an SOS lock, it will
automatically switch to Gauge mode and
provide no decompression information.
NOTE: In Gauge mode the SOS lock
F
interval is 48 hours.
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.
English
GALILEO 2 (G2) USER MANUAL
13
The display shows the same information
as when displaying desaturation but,
in addition, the SOS mode message is
displayed.
Instead of the no-y time, the 24-hour
countdown is shown. The middle button
description changes from LOG to SOS,
and by pressing it an emergency message
is displayed. The emergency information
for this display can be entered using
LogTRAK. Once the emergency message
is displayed, pressing the LOG button
shows the details of the last dive.
NOTE: If the battery becomes fully
F
discharged while at depth in spite
of using the power save mode, the
G2 will remain in SOS mode and
locked into Gauge mode for 48
hours, independent of the remaining
desaturation time.
1 .8 Emergency information
To add your emergency information you will
need to use LogTRAK for Windows or Mac.
See section: Interfaces for the G2 and
an introduction to LogTRAK.
1 .9 Owner information
To customize your time-of-day display
with your name or other text you need to
use LogTRAK for Windows or Mac. See
section: Interfaces for the G2 and an
introduction to LogTRAK.
NOTE: In the event you misplace your
F
G2, it is advisable to include some
contact information along with your
owner information.
1 .10 Mounting and pairing the
high pressure transmitter
The G2 can receive tank pressure
information from multiple Smart series high
pressure transmitters. Each transmitter
needs to be mounted on a high pressure
port of a rst stage regulator.
To mount the transmitter, rst remove the
high pressure port plug from the rst stage
regulator, then screw the transmitter in
place.
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GALILEO 2 (G2) USER MANUAL
NOTE: Use an appropriate wrench to
F
tighten the transmitter. Take care to
not overtighten.
The Smart transmitter communicates via
radio frequency with the G2. For optimal
transmission performance, we recommend
positioning the transmitter as described in
the pictures below.
English
Transmitter position for the left hand.
Transmitter position for the right hand.
In order for the G2 to display the pressure
signal from a Smart transmitter, a coded,
interference-free line of communication
must rst be established. This step needs
to be performed only once for each
transmitter.
There are two methods for pairing the G2
to a transmitter.
1. For automatic pairing, proceed as
follows:
• Mount the first stage regulator with
the Smart transmitter on a full tank.
• Turn on the G2, ensure it is in the
time-of-day display, and place it near
(x) the transmitter as indicated in the
picture below.
• Open the tank valve.
GALILEO 2 (G2) USER MANUAL
15
2. For manual pairing, proceed as follows:
• Mount the first stage regulator with
the Smart transmitter on a full tank.
• Turn on the G2, select menu 8.2.6.
Pairing.
• Open the tank valve.
Upon pressurization, the Smart transmitter
will send a pairing sequence to the G2.
When the G2 receives this information, the
display changes to show a listing of tank
designations. (T1, T2, etc.).
Tank T1 is always the main tank you start
your dive with. Other tanks are used when
diving with more than one gas mixture
(described in chapter: Diving with
multiple gas mixtures).
Use the ARROW buttons to select the tank
that you want to assign to the transmitter,
then press SAVE to lock in your selection.
The G2 will conrm the pairing with the
message PAIRING TO T1 SUCCESSFUL.
If you do not wish to complete the
operation, with a press-and-hold of the
right button the G2 will show the message
PAIRING CANCELLED. The pairing will
also be cancelled if you do not press SAVE
within 3 minutes of tank selection.
NOTE: The transmitter must have
F
been unpressurized for at least 40
seconds prior to performing the
pairing operation; otherwise it will not
transmit the pairing sequence.
Also, a transmitter can only be paired
to one tank designation. If you pair
the same transmitter to a second
tank designation, the rst one will be
erased. However, you can pair more
than one G2 to the same transmitter.
After a successful pairing of T1 to the G2,
the display will show the tank pressure in
either BAR or PSI. If tank T1 has not been
paired, the G2 will show NO P instead of a
pressure value.
If T1 has been paired but the G2 is not
receiving any signal, it will show - - - instead
of a pressure value.
On the surface, the status of tanks T2, T3,
etc. are shown in the gas summary table,
described in chapter: Gas summary.
16
GALILEO 2 (G2) USER MANUAL
NOTES:
F
• The Smart transmitter has a range of
approximately 1.5m/5ft.
• To maximize the life of the battery,
the transmitter operates at a low
update rate when there is no pressure
change for more than 40 seconds.
The transmitter also turns itself off
when the pressure is 14bar/200psi
or less.
• If a transmitter battery is weak, the G2
will alert you with a screen message
displaying the tank assigned to that
transmitter as shown on the screen
below.
can be used as an alternative air source or
bailout bottle to allow a normal ascent in
place of a controlled emergency swimming
ascent.
The pony bottle can be paired the same
way as a normal cylinder from the G2’s
8.2.6 Pairing menu.
1 .12 SCUBAPRO Human
Factor Diving
The G2 has patented underwater Heart
Rate, Skin Temperature and Breathing
monitors. These features will customize
every dive based on your body reactions
and provide you more data that enhances
your diving experience and helps you to
become a more advanced diver.
To learn more about the physiology of the
SCUBAPRO Human Factor DivingTM, see
the booklet: “HEARTRATE MEASUREMENT
FOR BETTER WORKLOAD ASSESSMENT,”
Dr. T. Dräger, Dr. U. Hoffmann, 2012,
www.scubapro.com.
TM
English
See chapter: Replacing the battery in
transmitter for information on how to
replace the transmitter battery.
1 .11 Pairing a pony bottle to
the G2
A pony bottle is a small diving cylinder which
is tted with an independent regulator,
and carried by a diver as an extension to
the scuba set. In an emergency, such as
depletion of the diver’s main air supply, it
GALILEO 2 (G2) USER MANUAL
NOTE: Refer to chapter Workload
F
to learn how to enable the G2’s heart
rate monitor function.
1 .13 Turning off the G2
The G2 turns off automatically after 3
minutes without active use, or without an
active Bluetooth link. When in the timeof-day display, you can turn the G2 off
manually with a press-and-hold of both
right and left buttons simultaneously.
17
2 . G2 SETTINGS AND
MENUS
By pressing MENU from the time-of-day
display you will enter the Settings folder.
Note that when you rst reach a menu,
you are “outside” of it. Therefore, you must
press the ENTR button to get inside the
actual menu. Some menus have multiple
levels. You can return to previous levels
with a press-and-hold of the ENTR button.
Also, you can return to time-of-day display
by press-and-hold both right and left
buttons simultaneously.
Simply, by pressing ARROW buttons you
can surf the menu, and by pressing ENTR
you get into the menu selection. For menus
with multiple items there is an indicator bar
on the right side of the screen which shows
your current location.
Regardless of the language setting, all
menus are numbered for easy identication.
All of the sub menus function in a similar
way, meaning that if there is a value that
can be changed, the range will be shown
at the bottom of the screen (see screen
below). Sub menus are also numbered
using the decimal format x.y (x=main menu.
y=sub menu).
In this case, left and middle button functions
are labeled – and + (enabling you to edit the
current selection). The right ARROW button
moves your selection to the next eld and
SAVE stores the entered values. On the
right side of the screen a navigation bar
indicates the value as an analog meter.
18
GALILEO 2 (G2) USER MANUAL
The Main menu offers the following settings:
Nr. Menu Nr. Menu
1 O
setting 6.9. Entering level stops
2
2 Dive settings 6.10. MB stop ignored
2.1. MB level 6.11. MB level reduced
2.2. Dive mode 6.12. L0 no-stop = 2min
2.3. Safety stop timer 6.13. Entering deco at L0
2.4. ppO
max 7 Clock settings
2
2.5. Water type 7.1. Wake-up alarm
2.6. Nitrox reset time 7.2. Time
2.7. Max surface time 7.3. Time zone
2.8. OTU settings 8 Other settings
2.9. Desaturation reset 8.1. Device information
2.10. All-silent mode 8.2. Gas integration
2.11. Sidemount 8.2.1. Tank reserve
2.12. CCR 8.2.2. RBT = 0 min
2.13. Trimix 8.2.3. Breathing sensitivity
2.14. PDIS 8.2.4. Bar graph
2.15. PMG 8.2.5. Gas summary
3 Apnea dive 8.2.6. Pairing
3.1. Maximum depth 8.3. Backlight duration
3.2. Depth increment 8.4. Backlight intensity
3.3. Dive time interval 8.5. Water contacts
3.4. Surface interval 8.6. Factory settings
3.5. Low heart rate 8.7. Feature upgrade
3.6. Ascent speed 8.8. Software update
3.7. Water density 8.9. Format ash disk
4 Digital compass 9 Personalization
4.1. Use compass 9.1. Screen conguration
4.2. Auto-off time 9.2. Language
4.3. Declination 9.3. Start-up picture
5 Altimeter 9.4. Units
6 Warning settings 9.5. Workload
6.1. Maximum depth 9.6. Show owner info
6.2. CNSO
= 75% 9.7. Emergency info
2
6.3. No-stop = 2min 9.8. Display color
6.4. Entering deco 10 Pictures
6.5. Dive time 11 Dive planner
6.6. Tank pressure 12 Help
6.7. RBT = 3min 13 Bluetooth
6.8. Pressure signal 14 Logbook
English
GALILEO 2 (G2) USER MANUAL
19
By surng these menus you can quickly
become familiar with them. Following are
short descriptions for each selection.
NOTE: To make it easier to understand
F
the menu system in accordance
with your current level of diving, the
G2 has a feature upgrade function.
More advanced level functions and
selections do not appear in the menu
unless you want them to. (This is why
you might nd some menu numbers
missing from the MAIN menu screen.)
For example, if you are not diving with
rebreathers or using more than one gas,
it’s not necessary to enable the CCR or
PMG menu modes. This keeps the menu
system simple and streamlined to suit your
particular diving style.
2 .1 O2 settings
Here you can change the gas content of
the tanks that you are using as well as
the partial pressure limit of the gas. The
Maximum Operating Depth (MOD) limit
will be shown for the values that you have
selected. To learn more about diving with
Nitrox and MOD, see chapter: Diving with
nitrox.
2 .1 .1 Recreational (factory setting)
For normal one-tank diving you can select a
gas mix from 21% oxygen (Air) up to 100%
oxygen. The ppO2 max value is required for
the MOD limit you intend to use for this gas.
The factory setting is 1.40bar.
2 .1 .2 Multi-gas (PMG) settings
If PMG is enabled, the O
as follows. See chapter: Activating PMG
to learn how to activate this feature.
T1 is always the default gas at the start of
the dive. Tank 2 through 8 values can be
adjusted the same way as Tank 1.
setting will appear
2
20
WARNING
The MOD limit denes the warning depth
based on oxygen toxicity. However, depth
narcosis can affect a diver’s skills much
earlier, jeopardizing his or her ability to dive
safely at that depth.
GALILEO 2 (G2) USER MANUAL
You can set a different ppO2 setting for
decompression gases.
The maximum ppO2 limit can be modied
at menu 2.4. ppO2max.
NOTE: See chapter: Diving with
F
multiple gas mixtures to learn more
about this feature.
2 .1 .3 Trimix settings
If trimix is enabled the O
as follows. See chapter: Activating Trimix
to learn how to activate this feature.
setting will appear
2
WARNING
The Absolute Minimum Depth (AMD) depends
on ppO2min value. If the alarm depth is
shallower than 0.8m/3ft which is the dive start
depth for the G2, the alarm will not activate
before a 0.8m/3ft depth is reached! This
situation is dangerous and may lead to death
by drowning.
WARNING
Engaging in heavy work while at the surface or
at shallow depths while breathing less than a
21% oxygen (hypoxic mix) fraction may cause
a loss of consciousness and lead to drowning.
2 .1 .4 Sidemount settings
In Sidemount mode the O
adjusted the same way as in PMG mode.
See chapter: Multi-gas (PMG) settings
to learn how to set the oxygen content in
this mode.
2 .1 .5 CCR settings
If the CCR mode is enabled the diluent tank
will appear as follows. Other tanks (T1 to
T8) can be congured as with PMG mode.
See chapter: Activating CCR to learn how
to activate this feature.
Setpoint 1 can be selected from 0.2 to
0.95bar which denes the MOD.
settings can be
2
English
In trimix mode the oxygen fraction can be
selected from 8% to 100%.
NOTE: See chapter: Diving with
F
Trimix mode to learn more about this
feature.
NOTE: To ensure an adequate supply
F
of oxygen to the body, the gas used at
the beginning of the dive must contain
enough oxygen (you can use a travel
mix or one of the decompression
gases). Since the dive always starts
with tank T1, the minimum O2 setting
for tank T1 is 18%.
GALILEO 2 (G2) USER MANUAL
Setpoint 2 can be selected from 1.0 to
1.6bar. Since higher values cannot be
reached at the surface, an AMD will be
calculated for the setting.
21
WARNING
Diving with a ppO2 higher than 1.4bar is
dangerous and may lead to unconsciousness,
drowning and death.
NOTE: the ppO2 is xed to 1.6bar
F
when the selected oxygen content is
80% or higher.
2 .2 Dive settings
NOTE: See chapter: Diving with
F
CCR mode to learn more about this
feature.
2 .1 .6 MOD setting
It is possible to disable the MOD setting
(- - - shown in the eld) like on the screen
below.
This requires entering the safety code 313
in the menu 2.4. ppO2 max.
2 .2 .1 MB-level
Here you may select the preferred
Microbubble (MB) level that you want to
follow during your dives. Level 9 is the
most conservative, Level 0 is the least
conservative.
NOTE: For more about diving with the
F
MB levels, see chapter: Diving with
MB-levels.
22
GALILEO 2 (G2) USER MANUAL
2 .2 .2 Dive mode (Algorithm
Your G2 allows you to choose between
Scuba, Gauge and Apnea modes.
When the G2 has not been submerged
for a while the display appears as shown
below:
F
selection)
NOTE: Since Gauge and Apnea
modes do not track tissue saturation,
a 48-hour locking interval occurs
between the time the last dive is
made in Gauge or Apnea mode and
a change to Scuba mode is possible.
Conversely, the G2 shown below
has been dived in Scuba mode and
cannot be changed to Gauge or
Apnea mode until the desaturation
time has elapsed.
NOTE: Apnea mode is only available
F
as a selectable dive mode if you have
enabled it in the G2’s 8.7 Feature
upgrade menu. By default Apnea
mode is disabled and the menu 2.2
Dive mode will appear as 2.2 Gauge
mode.
2 .2 .3 Safety stop timer
Safety stop timer duration and start mode
can be edited in this menu.
See chapter: Safety stop timer to learn
how this feature is used while diving.
2 .2 .4 ppO
The ppO
limit for oxygen partial pressure. Gas O2
settings higher than this limit cannot be
selected for any tank.
max
2
max setting denes the maximum
2
English
If you decide to change modes before
the 48-hour interval ends, or before full
desaturation occurs, you will have to go
to the desaturation reset menu and make
a manual desaturation reset. Refer to
chapter Desaturation reset to learn how
to manually reset the desaturation.
GALILEO 2 (G2) USER MANUAL
2 .2 .5 Water type
The G2 measures pressure and converts it
to a depth value by using water density as a
constant. A depth of 10m/33ft in salt water
corresponds approximately to 10.3m/34ft
of depth in fresh water.
23
NOTE: This setting will adjust the
F
depth on all modes: Scuba, Gauge
and Apnea.
2 .2 .6 Nitrox reset time
If you are generally diving with air and want
to return to this setting after the occasional
nitrox dive, you can preset a default time
that will enable your G2 to reset back to air.
Reset time can be selected from 1 hour up
to 48 hours, or the nitrox reset time can be
disabled. Gas reset time is disabled when
“no reset” is shown.
2 .2 .7 Max surface time
Maximum surface time allows you to enjoy
short orientations at the surface while
maintaining a single logged dive.
2 .2 .8 OTU settings
Oxygen Toxicity Unit (OTU) information and
settings can be edited in this menu.
The OTU information screen below displays
the current OTU related information:
1. OTUs from the last dive.
2. OTUs from the dives today along with
the maximum allowed value.
3. OTUs allowed for tomorrow along with
the maximum allowed value.
4. Total OTU dose during the mission
(series of diving days).
5. Exposure (how many days of diving
have occurred during this mission).
6. Interval (how many days have passed
since the last dive day).
24
GALILEO 2 (G2) USER MANUAL
OTUs are calculated per day, changing
at midnight (00:00) with limits changing
accordingly.
You can dene the reset interval, which
is the length of time without logged dives
required to clear the OTU counter.
2 .2 .9 Desaturation reset
The G2 allows you to reset the desaturation
in the computer. Any tissue saturation
information from a recent dives can be
reset to zero, allowing the G2 to treat the
next dive as a non-repetitive dive. This
function is useful when the G2 is loaned to
another diver who has not dived in the last
48 hours.
WARNING
Resetting desaturation will affect the
calculations of the algorithm, which may
lead to serious injury or death. Do not reset
desaturation without a valid purpose.
NOTE: Some menu changes are not
F
possible while the G2 is counting
down desaturation. If you decide to
reset desaturation, the safety code
313 must be used. This procedure
prevents unwanted resetting, plus
the desaturation reset will be stored
to memory; in the next dive log the
desaturation reset warning will be
shown.
English
Also, if you wish to clear the OTUs manually
you can do this with the following menu.
Clearing the OTUs requires the safety code
313.
GALILEO 2 (G2) USER MANUAL
25
When the safety code is correctly entered
and conrmed by a press of the SAVE
button, the desaturation reset is complete
and the following screen will be shown.
NOTE: After a desaturation reset
F
the change between Scuba, Gauge
and Apnea modes are possible
immediately. However, since the
Gauge and Apnea modes are not
tracking your tissue nitrogen loading,
it is recommended that you maintain
the initial intervals between mode
changes.
WARNING
Diving after a desaturation reset is extremely
dangerous and is very likely to cause serious
injury or death. Do not reset the desaturation
unless you have a valid reason to do so.
NOTE: An automatic low battery
F
switch-off will not reset the
desaturation. The G2 stores tissue
saturation information in a nonvolatile memory. During the time
the computer is without power the
desaturation calculation is frozen.
During recharging, the display will light
up and desaturation calculation will
resume as soon as a sufcient level of
charge has been reached.
2 .2 .10 All-silent mode
With the selection ON, the stealth mode
becomes active and no alarms or warnings
will be emitting an audible signal. (The
factory setting is OFF.)
WARNING
The all-silent mode ON selection will disable
all audible dive mode alarms and warnings.
This could potentially be dangerous.
NOTE: The only exception to the
F
stealth mode is the alarm clock, which
will beep when activated, even if the
all-silent mode is activated.
NOTE: In order to activate all-silent
F
mode the safety code 313 must be
entered. This is to prevent accidental
deactivation of dive alarms and
warnings.
26
GALILEO 2 (G2) USER MANUAL
2 .2 .11 Activating Sidemount
In sidemount diving there are normally
two tanks and two regulators, each set
mounted independently on each side of the
diver.
Independent redundant gas delivery
systems should be drawn down equally,
in small steps, so in case one system fails
the other system has maximum reserves to
complete the dive.
When the G2’s Sidemount mode is
activated (ON), two tank pressures are
displayed at the same time. See chapter
Display conguration in Sidemount
mode to learn more about how the display
is congured in this mode.
NOTE: For proper operation of the
F
Sidemount mode, both tanks must be
equipped with a transmitter.
The pressure step denes the pressure
difference between tanks when the G2
alerts you to switch from the lower to the
higher supply side. You can choose a step
between 10 and 50 bars or follow the rule
of thirds.
2 .2 .12 Activating CCR
The Rebreather mode can be set to ON
here if the feature is enabled.
Enabling CCR changes the default open
circuit gas content settings to setpoint
settings. Also, the dive display will change
so that both O2 and Diluent tank pressures
are shown at the same time. See chapter:
Display conguration in CCR mode to
learn more how the display is congured in
this mode.
Since the CCR dive unit is responsible for
the setpoint accuracy and the G2 is using
that accurate number, you can select
some conservatism with an O
gas correction (it is shown as N2 but also
inuences He when the TMx option is
enabled).
For example, the % value of the O
correction increases the nominally set
ppO2 value for the CNS% clock value, and
decreases the nominally set ppO2 value for
the inert gas absorption (algorithm).
and inert
2
2
English
NOTE: The Sidemount mode can be
F
used for backmount twin tank diving
as well.
GALILEO 2 (G2) USER MANUAL
27
2 .2 .13 Activating Trimix
Trimix can be set to ON here if the feature
is enabled.
2 .2 .15 Activating PMG
Predictive Multi-gas (PMG) mode enables
the use of multiple tanks from 2 to 8.
When Trimix is on, the gas content
presentation follows the standard O2/He.
Also, the AMD (Absolute Minimum Depth)
for each gas is shown. See chapter:
Diving with Trimix to learn more about
this feature.
2 .2 .14 Enabling PDIS
SCUBAPRO dive computers feature ProleDependent Intermediate Stops (PDIS) which
can be enabled in this menu.
See chapter: PDIS (Prole Dependent
Intermediate Stop) to learn more about
this feature.
See chapter: Diving with multiple gas
mixtures to learn more about how to use
this feature.
NOTE: PMG must be enabled for
F
Sidemount and CCR diving modes.
2 .3 Apnea dive
If the Apnea feature is enabled in the G2’s
8.7. Feature upgrade menu, the following
settings for the Apnea mode can be edited.
1. Maximum depth
2. Depth increment
3. Dive time interval
4. Surface interval
5. Low heart rate
6. Ascent speed
7. Water density
28
GALILEO 2 (G2) USER MANUAL
2 .3 .1 Setting the maximum dual
depth alarm
In Apnea mode all alarms can be either
audible or disabled.
NOTE: The rst alarm is short
F
sequence to get your attention, and
the second alarm is continuous. By
setting the rst alarm deeper than
the second, it will be masked by the
continuous alarm and you cannot hear
the rst one.
English
After enabling the maximum depth alarm
the limits can be selected. The rst depth
alarm can be selected from 5-100m/20330ft.
Equally, the second depth alarm may be set
from 5-100m/20-330ft.
2 .3 .2 Setting the depth
incremental warning
Independent of the maximum depth alarm,
you can set incremental depth warnings.
These depth warnings can be set for
descending (shown as Way down), for
ascending (shown as Way up), or for both
directions.
The depth increment can be selected from
5-100m/20-330ft.
GALILEO 2 (G2) USER MANUAL
29
2 .3 .3 Setting the dive time interval
warning
You can set a dive time interval warning
from 15 seconds up to 10 minutes.
2 .3 .5 Low HR alarm
The G2 can trigger an alarm if your heart
rate drops below a set level. The alarm
can be set between 35 and 100 beats per
minute.
2 .3 .4 Setting the surface interval
The surface interval warning can be set
from 15 seconds up to 14 minutes and 45
seconds.
F
warning
NOTE: After 15 minutes on the
surface, the G2 automatically ends the
dive session and saves the dive in the
logbook.
2 .3 .6 Setting the ascent speed
alarm
The G2 can trigger an alarm if you exceed
the preset ascent speed. You can select
the value from 0.1-5.0m/1-15ft per second.
30
GALILEO 2 (G2) USER MANUAL
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