Scubapro Galileo 2 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.

English

The G2 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 its conformity with the European Standard EN 250: 2014 (EN 250: 2014 : Respiratory equipment – Open circuit selfcontained compressed air diving apparatus – requirements, testing and marking);

The G2 dive instrument is also compliant with the European Union directive 2014/30/EU.

Standard EN 13319: 2000

The G2 dive instrument is compliant with the European standard EN 13319: 2000 (EN 13319: 2000 – Depth gauges and combined depth and time measuring devices – Functional and safety requirements, tests methods).

GALILEO 2 (G2) USER MANUAL	3

TABLE OF CONTENTS

1 . Introduction to the G2 ...........................................................................................			8
1 .1 Power concept and charging ...................................................................			8
1.2	Operating modes ...................................................................................		10
1 .3 Switching on the G2 ..............................................................................			10
1.4	No-Dive warning ....................................................................................		12
1.5	No-Fly time ............................................................................................		12
1.6	SOS .......................................................................................................		12
	1.6.1	Emergency information ...........................................................	13
1.7	Owner information .................................................................................		13
1 .8 Mounting and pairing the high pressure transmitter ................................			13
1 .9 SCUBAPRO Human Factor DivingTM .......................................................			16
1 .10 Turning off the G2 ..................................................................................			16
2 . G2 settings and menus ......................................................................................			17
2.1	O2 settings .............................................................................................		19
	2.1.1	Recreational (factory setting) ...................................................	19
	2.1.2	Multigas (PMG) .......................................................................	19
	2.1.3	Trimix ......................................................................................	20
	2.1.4	CCR .......................................................................................	20
	2.1.5	MOD setting ...........................................................................	21
2.2	Dive settings ..........................................................................................		21
	2.2.1	MB level ..................................................................................	21
	2 .2 .2	Dive mode (Algorithm selection) ..............................................	22
	2.2.3	Safety stop timer ....................................................................	22
	2.2.4	ppO2 max ...............................................................................	22
	2.2.5	Water type ..............................................................................	22
	2.2.6	Nitrox reset time .....................................................................	23
	2.2.7	Max surface time ....................................................................	23
	2.2.8	OTU settings ..........................................................................	23
	2.2.9	All-silent mode ........................................................................	25
	2.2.10	Sidemount ..............................................................................	26
	2.2.11	CCR .......................................................................................	26
	2.2.12	Trimix ......................................................................................	27
	2.2.13	PDIS .......................................................................................	27
	2.2.14	PMG ......................................................................................	27
2.3	Apnea dive .............................................................................................		27
	2 .3 .1	Setting the maximum dual depth alarm ...................................	28
	2 .3 .2	Setting the depth incremental warning ....................................	28
	2 .3 .3	Setting the dive time interval warning ......................................	29
	2 .3 .4	Setting the surface interval warning ........................................	29
	2 .3 .5	Setting the ascent speed alarm ..............................................	29
	2.3.6	Low HR alarm .........................................................................	29
	2.3.7	Water density ..........................................................................	30
2.4	Digital compass .....................................................................................		30
	2.4.1	Use compass .........................................................................	31
	2.4.2	Auto-off time ...........................................................................	31
	2.4.3	Declination ..............................................................................	31

	4	GALILEO 2 (G2) USER MANUAL

2.5	Altimeter	................................................................................................	32
2.6	Warning ....................................................................................settings		32
	2 .6 .1 ................................................	Maximum dive depth warning	32
	2.6.2 .........................................................................	CNS O 2 =75%	33
	2 .6 .3 ..............................................................	No stop time = 2 min	33
	2.6.4 .........................................................................	Entering deco	33
	2 .6 .5 ...................................................	Maximum dive time warning	33
	2.6.6 .........................................................................	Tank pressure	34
	2 .6 .7 ...........................................................................	RBT = 3 min	34
	2.6.8 .......................................................................	Pressure signal	34
	2.6.9 .................................................................	Entering level stops	35
	2.6.10 .....................................................................	MB stop ignored	35
	2.6.11 ....................................................................	MB level reduced	35
	2 .6 .12 ..........................................................	L0 no stop time = 2 min	35
	2 .6 .13 ................................................................	Entering deco at L0	36
2.7	Clock settings ........................................................................................		36
	2.7.1 .......................................................................	Wake - up alarm	36
	2.7.2 ......................................................................................	Time	37
	2.7.3 ...............................................................................	Time zone	37
2.8	Other settings ........................................................................................		37
	2.8.1 ..................................................................	Device information	37
	2.8.2 .......................................................................	Gas integration	38
	2.8.3 ...........................................................................	Tank reserve	38
	2 .8 .4 ............................................................	RBT warning or alarm	38
	2.8.5 ...............................................................	Breathing sensitivity	38
	2.8.6 ..............................................................................	Bar graph	39
	2.8.7 ........................................................................	Gas summary	39
	2.8.8 ...................................................................................	Pairing	39
	2.8.9 ...................................................................	Backlight duration	39
	2.8.10 ...................................................................	Backlight intensity	40
	2.8.11 .......................................................................	Water contacts	40
	2.8.12 ......................................................................	Factory settings	40
	2.8.13 .....................................................................	Feature upgrade	41
	2.8.14 .....................................................................	Software update	41
	2.8.15 ....................................................................	Format flash disk	41
2.9	Personalization .......................................................................................		42
	2.9.1 ...............................................................	Screen configuration	42
	2.9.2 ...............................................................................	Language	42
	2.9.3 ......................................................................	Start - up picture	42
	2 .9 .4 ...............................................	Setting the user preferred units	43
	2.9.5 ................................................................................	Workload	43
	2.9.6 .....................................................................	Show owner info	44
	2.9.7 .......................................................................	Emergency info	44
	2.9.8 ...........................................................................	Display color	44
2.10	Pictures .................................................................................................		45
2.11	Dive planner ...........................................................................................		45
	2.11.1 ..........................................................................	No - stop plan	45
	2.11.2 ...............................................................	Decompression plan	46

English

GALILEO 2 (G2) USER MANUAL	5

2.12	.......................................................................................................Help		46
2.13	Bluetooth	..............................................................................................	46
2.14	Logbook ................................................................................................		46
	2.14.1	Apnea logs .............................................................................	48
3 . Diving with the G2		...............................................................................................	49
3 .1 Dive mode at surface .............................................................................			49
	3.1.1	Recreational (factory setting) ...................................................	49
	3.1.2	PMG .......................................................................................	49
	3.1.3	Trimix ......................................................................................	50
	3.1.4	Sidemount ..............................................................................	50
	3.1.5	CCR .......................................................................................	50
	3 .1 .6	Surface interval, no dive and CNS% counters .........................	50
3 .2 Button functions while diving ..................................................................			51
3.3	Altitude diving ........................................................................................		53
	3 .3 .1	Altitude classes and altitude warnings after a dive ...................	53
	3 .3 .2	Altitude and the decompression algorithm ..............................	53
	3.3.3	Prohibited altitude ...................................................................	54
	3 .3 .4	Decompression dives in mountain lakes .................................	55
3 .4	Diving with nitrox ...................................................................................		55
	3.4.1	Technical diving ......................................................................	57
	3 .4 .2	Diving with multiple gas mixtures ............................................	57
	3 .4 .3	Diving with Trimix mode ..........................................................	61
	3 .4 .4	Diving with CCR mode ...........................................................	63
3 .5	Warnings and alarms .............................................................................		64
	3.5.1	Warning settings .....................................................................	64
	3.5.2	Maximum depth .....................................................................	64
	3.5.3	CNS O2 = 75% .......................................................................	64
	3 .5 .4	No-Stop time = 2 min .............................................................	65
	3.5.5	Entering decompression .........................................................	65
	3.5.6	Dive time ................................................................................	65
	3.5.7	Tank pressure .........................................................................	66
	3 .5 .8	RBT = 3 min ...........................................................................	66
	3.5.9	Pressure signal .......................................................................	66
	3.5.10	Entering level stops .................................................................	67
	3.5.11	MB stop ignored .....................................................................	67
	3.5.12	MB level reduced ....................................................................	67
	3 .5 .13	L0 no-stop = 2 min .................................................................	67
	3 .5 .14	Entering decompression at L0 ................................................	68
3.6	Alarms ...................................................................................................		68
3 .7	Ascent rate ...........................................................................................		68
	3.7.1	MOD/ppO2 .............................................................................	70
	3.7.2	CNS O2 = 100% .....................................................................	70
	3 .7 .3	Tank reserve pressure reached ...............................................	70
	3.7.4	Missed decompression stop ...................................................	71
	3 .7 .5	RBT = 0 min ...........................................................................	71
	3.7.6	Low battery ............................................................................	71

	6	GALILEO 2 (G2) USER MANUAL

	3.8	Display information .................................................................................		72
		3 .8 .1	Display configuration during the dive ......................................	72
		3.8.2	Setting bookmarks .................................................................	75
		3.8.3	Stop watch timer ....................................................................	75
		3.8.4	Safety stop timer ....................................................................	76
		3.8.5	Backlight ................................................................................	76
		3.8.6	Compass ................................................................................	76
	3 .9	Diving with MB levels .............................................................................		77
		3 .9 .1	Comparison of dives with MB level L0 and MB level L5 ..........	77
	3 .10 PDIS (Profile Dependent Intermediate Stop) ...........................................			77
		3 .10 .1	Introduction to PDIS ..............................................................	77
		3 .10 .2	How does PDIS work? ...........................................................	79
		3 .10 .3	Special considerations when diving with
			more than one gas mixture (G2) ..............................................	79
		3.10.4	Diving with PDIS .....................................................................	80
	3.11	Gauge mode ..........................................................................................		81
	3.12	Apnea mode ..........................................................................................		82
4.	G2 accessories ....................................................................................................			83
	4 .1	Bungee arm strap ..................................................................................		83
	4 .2	Wireless high pressure transmitter ..........................................................		83
	4 .3	Skin temperature heart rate belt .............................................................		83
	4 .4	Bluetooth USB stick ...............................................................................		84
5 . Interfaces for the G2 and an introduction to LogTRAK ...................................				84
	5 .1	Charging and using the G2 with a USB interface ....................................		85
	5.2	Bluetooth	...............................................................................................	86
		5 .2 .1	Connecting the G2 with LogTRAK ..........................................	86
		5.2.2	Download dive profiles ............................................................	87
		5 .2 .3 Changing warnings/settings on the G2,
			and reading computer info ......................................................	87
		5 .2 .4 USB flash disk operations .......................................................		88
6 . Taking care of your G2 ........................................................................................				89
	6 .1	Format flash disk ....................................................................................		89
	6.2	Technical information .............................................................................		90
	6.3	Maintenance ..........................................................................................		90
	6 .4	Replacing the battery in transmitter ........................................................		91
	7 .1	Replacing the battery in Heart Rate Belt .................................................		91
	7.1	Warranty ................................................................................................		91
8.	Glossary	...............................................................................................................		93
9.	Index .....................................................................................................................			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 briefly 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

1.1Power concept and charging

The G2 is powered by a rechargeable LiIon battery. SCUBAPRO recommends fully charging the battery before using the computer for the first 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.

FNOTE: If the G2’s battery is deeply 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.

	8	GALILEO 2 (G2) USER MANUAL

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.

In addition, the battery icon with current charging status is shown above the main time-of-day display.

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.)

FNOTE: Storing the G2 with a low 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.

English

GALILEO 2 (G2) USER MANUAL	9

WARNING

When your G2’s battery reaches the end of its lifetime, it can only be replaced by an authorized SCUBAPRO service center. Do not open your G2 or try to replace the battery yourself!

1.2Operating 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

calculations are performed in this mode.

1.3Switching on the G2

To switch on the G2, press and hold the right button.

FNOTE: You cannot turn the G2 on 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.

FNOTE: The following basic setup will also be required if you reset the G2 with the menu 8.7. Factory settings.

Press the right button.

Select your language with the left or middle button. Then confirm your selection with a press of the right button.

	10	GALILEO 2 (G2) USER MANUAL

English

Select each unit with the left or middle button, and confirm it with the right button.

Set the time zone with the left or middle button and confirm it with the right button.

After this initial setup, your G2 will boot to a display that we call the main time-of- day display. This is the display in which the current time is shown in the main field.

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 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.

FNOTE: There are two methods for 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.

APNEA SCUBA, GAUGE

LEFT BUTTON				MIDDLE BUTTON				RIGHT BUTTON
Press		Press and hold		Press		Press and		Press		Press and
						hold				hold
Main menu		Oxygen setting		Logbook		Gas summary		Backlight		Compass
						table
						Pictures
		Manual start of
Main menu				Logbook		Pictures		Backlight		Compass
		a dive

GALILEO 2 (G2) USER MANUAL	11

1.4No-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.

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 CNS O2 over 40%) and 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.

1.5No-Fly time

The no-fly 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-fly 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.

1.6SOS

If you stay above a depth of 0.8m/3ft for more than 3 minutes without observing a prescribed 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 is used for diving within the 24hours of an SOS lock, it will automatically switch to Gauge mode and provide no decompression information.

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.

	12	GALILEO 2 (G2) USER MANUAL

The display shows the same information as when displaying desaturation but, in addition, the SOS mode message is displayed.

Instead of the no-fly 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.

FNOTE: If the battery becomes fully 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.

1.6.1Emergency 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.

1.7Owner 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.

FNOTE: In the event you misplace your G2, it is advisable to include some contact information along with your owner information.

1.8Mounting 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 first stage regulator.

To mount the transmitter, first remove the high pressure port plug from the first stage regulator, then screw the transmitter in place.

English

GALILEO 2 (G2) USER MANUAL	13

FNOTE: Use an appropriate wrench to 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.

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 first 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.

	14	GALILEO 2 (G2) USER MANUAL

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. Pair with transmitter.

•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 confirm 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.

FNOTE: The transmitter must have 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 first 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.

English

GALILEO 2 (G2) USER MANUAL	15

FNOTES:

•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.

See chapter: Replacing the battery in transmitter for information on how to replace the transmitter battery.

1.9SCUBAPRO Human Factor DivingTM

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.

1.10 Turning off the G2

The G2 turns off automatically after 3 minutes without active use, or without an active Bluetooth link. When in the time- of-day display, you can turn the G2 off manually with a press-and-hold of both right and left buttons simultaneously.

	16	GALILEO 2 (G2) USER MANUAL

2.G2 SETTINGS AND MENUS

By pressing MENU from the time-of-day display you will enter the Settings folder. Note that when you first reach a menu, you are “outside” of it. Therefore, you must press the ENTER 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 ENTER 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 ENTER 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 identification. 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 field and SAVE stores the entered values. On the right side of the screen a navigation bar indicates the value as an analog meter.

English

GALILEO 2 (G2) USER MANUAL	17

The Main menu offers the following settings:

Nr.	Menu
1	O2 setting
2	Dive settings
2.1.	MB level

2.2.Dive mode

2.3.Safety stop timer

2.4. ppO2max

2.5.Water type

2.6.Nitrox reset time

2.7.Max surface time

2.8.OTU settings

2.9.Desaturation reset

2.10.All-silent mode

2.11.Sidemount

2.12.	CCR
2.13.	Trimix
2.14.	PDIS
2.15.	PMG
3	Apnea dive

3.1.Maximum depth

3.2.Depth increment

3.3.Dive time interval

3.4.Surface interval

3.5.Low heart rate

3.6.Ascent speed

3.7.Water density

4	Digital compass

4.1.Use compass

4.2.Auto-off time

4.3.Declination

5	Altimeter
6	Warning settings

6.1.Maximum depth

6.2.CNSO2 = 75%

6.3.No-stop = 2min

6.4.Entering deco

6.5.

Dive time

6.6.Tank pressure

6.7.RBT = 3min

6.8.Pressure signal

6.9.Entering level stops

Nr. Menu

6.10.MB stop ignored

6.11.MB level reduced

6.12.L0 no-stop = 2min

6.13.Entering deco at L0

7	Clock settings

7.1.Wake-up alarm

7.2. Time

7.3.Time zone

8	Other settings

8.1.Device information

8.2.Gas integration

8.2.1.Tank reserve

8.2.2.RBT = 0 min

8.2.3.Breathing sensitivity

8.2.4.Bar graph

8.2.5.Gas summary

8.2.6. Pairing

8.3.Backlight duration

8.4.Backlight intensity

8.5.Water contacts

8.6.Factory settings

8.7.Feature upgrade

8.8.Software update

8.9.Format flash disk

9	Personalization

9.1.Screen configuration

9.2.Language

9.3.Start-up picture

9.4.	Units
9.5.	Workload

9.6.Show owner info

9.7.Emergency info

9.8.Display color

10	Pictures
11	Dive planner

11.1.Plan a dive

12	Help
13	Bluetooth

13.1.Enable Bluetooth

14

Logbook

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By surfing these menus you can quickly become familiar with them. Following are short descriptions for each selection.

FNOTE: To make it easier to understand 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 find 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.

2.1O2 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.

2.1.1Recreational (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.

WARNING

The MOD limit defines 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.

2.1.2Multigas (PMG)

If PMG is enabled, the O2 setting will appear as follows. See chapter: Diving with multiple gas mixtures to learn more about 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.

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You can set a different ppO2 setting for decompression gases.

The maximum ppO2 limit can be modified at menu 2.4. ppO2max.

2.1.3Trimix

If trimix is enabled the O2 setting will appear as follows. See chapter: Trimix to learn how to enable this feature.

In trimix mode the oxygen fraction can be selected from 8% to 100%.

FNOTE: To ensure an adequate supply 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%.

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.

2.1.4CCR

If the CCR mode is enabled the diluent tank will appear as follows. Other tanks (T1 to T8) can be configured as with PMG mode. See chapter: CCR to learn how to enable this feature.

Setpoint 1 can be selected from 0.2 to 0.95bar which defines the MOD.

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.

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2.1.5MOD setting

It is possible to disable the MOD setting (- - - shown in the field) like on the screen below.

This requires a change at menu 2.4. ppO2 max.

WARNING

Diving with a ppO2 higher than 1.4bar is dangerous and may lead to unconsciousness, drowning and death.

FNOTE: the ppO2 is fixed to 1.6bar when the selected oxygen content is 80% or higher.

2.2Dive settings

2.2.1MB 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.

FNOTE: For more about diving with the MB levels, see chapter: Diving with MB levels.

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2.2.2Dive mode (Algorithm selection)

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:

FNOTE: 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.

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.

2.2.3Safety 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.

2.2.4ppO2 max

The ppO2max setting defines the maximum limit for oxygen partial pressure. Gas O2 settings higher than this limit cannot be selected for any tank.

2.2.5Water 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.

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FNOTE: This setting will adjust the depth on all modes: Scuba, Gauge and Apnea.

2.2.6Nitrox 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.

2.2.7Max surface time

Maximum surface time allows you to enjoy short orientations at the surface while maintaining a single logged dive.

2.2.8OTU 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).

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OTUs are calculated per day, changing at midnight (00:00) with limits changing accordingly.

You can define the reset interval, which is the length of time without logged dives required to clear the OTU counter.

Also, if you wish to clear the OTUs manually you can do this with the following menu.

Clearing the OTUs requires the confirmation number 313.

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.

FNOTE: Some menu changes are not 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.

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When the safety code is correctly entered and confirmed by a press of the SAVE button, the desaturation reset is complete and the following screen will be shown.

FNOTE: After a desaturation reset 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.

FNOTE: An automatic low battery 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 sufficient level of charge has been reached.

2.2.9All-silent mode

With the selection ON, the stealth mode becomes active and no alarms or warnings will emitting an audible signal. (The factory setting is OFF.)

WARNING

The sound OFF selection will disable all audible dive mode alarms and warnings. This is potentially dangerous.

FNOTE: The only exception to the silent mode is the alarm clock, which will beep when activated, even if the main setting is sound off.

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2.2.10Sidemount

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 enabled (ON), two tank pressures are displayed at the same time. See chapter: Sidemount to learn more about how the display is configured in this mode.

FNOTE: For proper operation of the sidemount mode, both tanks must be equipped with a transmitter.

The pressure step defines 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.

FNOTE: The Sidemount mode can be used for backmount twin tank diving as well.

2.2.11CCR

The Rebreather mode can be selected (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: CCR to learn more how the display is configured 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 O2 and inert gas correction (it is shown as N2 but also influences He when the TMx option is enabled).

For example, the % value of the O2 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).

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2.2.12Trimix

Trimix can be set to ON here if the feature is enabled.

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 multiple gas mixtures to learn more about this feature.

2.2.13PDIS

SCUBAPRO dive computers feature Profile Depending Intermediate Stops (PDIS) which can be enabled in this menu.

See chapter: PDIS (Profile Dependent Intermediate Stop) to learn more about this feature.

2.2.14PMG

Predictive Multigas (PMG) mode enables the use of multiple tanks from 2 to 8.

See chapter: Diving with multiple gas mixtures to learn more about how to use this feature.

FNOTE: PMG must be enabled for sidemount and CCR diving modes.

2.3Apnea dive

If the Apnea feature is selected, the following settings for the Apnea mode can be edited.

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2.3.1Setting the maximum dual depth alarm

In Apnea mode all alarms can be either audible or disabled.

After enabling the maximum depth alarm the limits can be selected. The first depth alarm can be selected from 5-100m/20- 330ft.

Equally, the second depth alarm may be set from 5-100m/20-330ft.

FNOTE: The first alarm is short sequence to get your attention, and the second alarm is continuous. By setting the first alarm deeper than the second, it will be masked by the continuous alarm and you cannot hear the first one.

2.3.2Setting 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.

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2.3.3Setting the dive time interval warning

You can set a dive time interval warning from 15 seconds up to 10 minutes.

2.3.4Setting the surface interval warning

The surface interval warning can be set from 15 seconds up to 14 minutes and 45 seconds.

FNOTE: After 15 minutes on the surface, the G2 automatically ends the dive session and saves the dive in the logbook.

2.3.5Setting the ascent speed alarm

You can select the value from 0.1-5.0m/ 1-15ft per second.

2.3.6Low 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.

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