Oceanic Scuba Diving Equipment 04892916 User Manual

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CONTENTS

ABREVIATIONS/TERMS...................................................................................................................................................7

WARRANTY,.NOTICES,.MODEL......................................................................................................................................8

FEATURES/FUNCTIONS.AND.WATCH.MODE................................................................................................................9

DISPLAY.LAYOUT.....................................................................................................................................................10

OVERVIEW.................................................................................................................................................................11

MENU.SYSTEM..........................................................................................................................................................12

BACKLIGHT...............................................................................................................................................................13

AUDIBLE.ALARM......................................................................................................................................................14

PC.INTERFACE..........................................................................................................................................................16

POWER.SUPPLY.......................................................................................................................................................17

WATCH.MAIN.(DEFAULT).TIME................................................................................................................................19

MAIN.TIME.................................................................................................................................................................20

WATCH.MENU............................................................................................................................................................20

DUAL.TIME.................................................................................................................................................................22

CDT.(COUNTDOWN.TIMER).....................................................................................................................................22

CHRONOGRAPH.......................................................................................................................................................25

DAILY.ALARM............................................................................................................................................................26

SET.T.MENU.(TIME)..................................................................................................................................................28

Set.Date.Format...................................................................................................................................................29

Set.Hour.Format..................................................................................................................................................29

Select.Default.Time..............................................................................................................................................30

Set.Dual.Time.Differential...................................................................................................................................31

Set.Time.of.Day....................................................................................................................................................32

Set.Date................................................................................................................................................................33

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CONTENTS.(continued)

NORM.SURFACE.MENU/MODES..................................................................................................................................37

SURF.MAIN.AND.ALTS.............................................................................................................................................38

FLY/SAT.TIME............................................................................................................................................................40

PLAN.MODE.(NORM)................................................................................................................................................42

LOG.MODE.(NORM/GAUG)......................................................................................................................................44

SET.F.MENU.(NORM.FO2)........................................................................................................................................47

Set.FO2.Gas.1......................................................................................................................................................49

Set.FO2.Gas.2......................................................................................................................................................50

Set.FO2.Default....................................................................................................................................................50

SET.A.MENU.(NORM/GAUG.ALARMS)....................................................................................................................51

Set.Audible.Alarm................................................................................................................................................51

Set.Depth.Alarm...................................................................................................................................................52

Set.EDT.Alarm......................................................................................................................................................52

Set.TLBG.Alarm...................................................................................................................................................53

Set.DTR.Alarm......................................................................................................................................................53

Set.PO2.Alarm......................................................................................................................................................54

SET.U.MENU.(UTILITIES).........................................................................................................................................54

Set.Wet.Activation...............................................................................................................................................55

Set.Units...............................................................................................................................................................55

Set.Deep.Stop......................................................................................................................................................55

Set.Safety.Stop....................................................................................................................................................56

Set.Algorithm.......................................................................................................................................................57

Set.Conservative.Factor.....................................................................................................................................57

Set.Backlight.Duration.(Glo)...............................................................................................................................58

Set.Sampling.Rate...............................................................................................................................................58

SET.M.(DIVE.OP.MODE)...........................................................................................................................................59

HISTORY.MODE.(NORM/GAUG)..............................................................................................................................60

SERIAL.NUMBER......................................................................................................................................................61

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CONTENTS.(continued)

DIVE.MODE.FEATURES.................................................................................................................................................63

BAR.GRAPHS............................................................................................................................................................64

TLBG.....................................................................................................................................................................64

VARI......................................................................................................................................................................65

ALGORITHM..............................................................................................................................................................66

CONSERVATIVE.FACTOR.(CF)................................................................................................................................66

DEEP.STOP.(DS).......................................................................................................................................................67

SAFETY.STOP.(SS)...................................................................................................................................................67

DIVE.TIME.REMAINING.(DTR)..................................................................................................................................69

NDC.(No.Deco.DTR)............................................................................................................................................69

OTR.(O2.OTR)......................................................................................................................................................70

NORM.DIVE.MODES.......................................................................................................................................................71

NO.DECO.MAIN.AND.ALTS......................................................................................................................................72

DEEP.STOP................................................................................................................................................................73

SAFETY.STOP...........................................................................................................................................................74

DECOMPRESSION....................................................................................................................................................75

CV.(CONDITIONAL.VIOLATION)..............................................................................................................................78

DV1.(DELAYED.VIOLATION.1).................................................................................................................................79

DV2.(DELAYED.VIOLATION.2).................................................................................................................................79

DV3.(DELAYED.VIOLATION.3).................................................................................................................................80

VGM.(VIOLATION.GAUGE.MODE)...........................................................................................................................80

HIGH.PO2...................................................................................................................................................................82

HIGH.O2.....................................................................................................................................................................84

GAS.SWITCHING.......................................................................................................................................................86

DIGITAL.GAUGE.MODE.................................................................................................................................................87

GAUG.SURF.MAIN.AND.ALTS..................................................................................................................................88

GAUG.SURF.MENU...................................................................................................................................................89

GAUG.DIVE.MAIN.AND.ALTS...................................................................................................................................90

DV3.(DELAYED.VIOLATION.3)............................................................................................................................92

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CONTENTS.(continued)

FREE.DIVE.MODE...........................................................................................................................................................93

FREE.SURF.MAIN.AND.ALTS...................................................................................................................................94

FREE.SURF.MENU....................................................................................................................................................95

CDT.(Countdown.Timer).....................................................................................................................................95

SET.FA.MENU.(Free.Alarms)...............................................................................................................................98

Set.EDT.Alarm.(Elapsed.Dive.Time).............................................................................................................98

Set.DA.(Depth.Alarms)...................................................................................................................................99

Select.M.(Dive.Mode)...................................................................................................................................100

FREE.DIVE.MAIN.AND.ALTS..................................................................................................................................101

FREE.DIVE.ALARMS...............................................................................................................................................103

REFERENCE.................................................................................................................................................................105

PC.INTERFACE........................................................................................................................................................106

CARE.AND.CLEANING...........................................................................................................................................108

INSPECTIONS.AND.SERVICE................................................................................................................................108

BATTERY.REPLACEMENT.....................................................................................................................................110

ALTITUDE.SENSING.AND.ADJUSTMENT.............................................................................................................113

TECHNICAL.DATA........................................................................................................................................................115

PZ+.ALGORITHM.NDL.CHART...............................................................................................................................116

DSAT.ALGORITHM.NDL.CHART............................................................................................................................117

SPECIFICATIONS....................................................................................................................................................118

INSPECTION/SERVICE.RECORD................................................................................................................................122

OCEANIC.WORLD.WIDE..............................................................................................................................................123

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ABBREVIATIONS/TERMS

ACTIV

ALT

ATA

AUD

= Activation

= Alarm

= Alternate

= Atmospheres Absolute

= Audible

MAX

= Maximum

MIN (min)

MPM

NDC

NDL

= Minutes (time)

= Meters Per Minute

= No Deco DTR

= No Deco Limit

= Number

BATT (BAT) = Battery

CDT (CD)

CHG

CONSERV = Conservative Factor

= Countdown Timer

= Change

NO-D

NORM

= No Decompression

= Normal Dive Mode

= Oxygen

= Conditional Violation

= Depth Alarm

O2SAT

= % O2

OTL (OTR) = O2 Limit (DTR)

DECO

DFLT

= Decompression

= Default

= Deep Stop

PDPS

PO2

PZ+

= Pre Dive Planning Sequence

= Partial Pressure of O2 (ATA)

= Algorithm type

DSAT

DTR

DURA

EDT

FO2

FORM

FPM

FREE

= Algorithm type

= Dive Time Remaining

= Duration (backlight)

= Delayed Violation

= Elapsed Dive Time

= Elevation (altitude)

= Fraction of Oxygen (%)

= Format (date, time)

= Feet Per Minute

= Free Dive Mode

= Feet (depth)

SAFE

SAT

= Safety (stop)

= Time to Desaturate

SEC (sec) = Seconds (time)

SEL

= Select

= Surface Interval

= Serial Number

= Safety Stop

= Sampling Rate

= Surface

SURF

SWCH

TAT

= Switch (gas)

= Total Ascent Time (deco)

GAUG

GLO

HIST

= Digital Gauge Dive Mode

= Glow (backlight)

= Hour

= History

= Low (battery)

TLBG (TBG) = Tissue Loading Bar Graph

TMR

VARI

VGM

VIO

= Timer

= Variable Ascent Rate Indcator

= Violation Gauge Mode

= Violation

= Meters (depth)

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LIMITED TWO-YEAR WARRANTY

For details, refer to the Product Warranty Registration Card provided. Register on-line at www.OceanicWorldwide.com

This operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing

from Oceanic/2002 Design.

GEO 2 Operating Manual, Doc. No. 12-5210

San Leandro, CA USA 94577

TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE

Oceanic, the Oceanic logo type, GEO 2, the GEO 2 logo, Diver Replaceable Batteries, Graphic Diver Interface, Tissue

Loading Bar Graph (TLBG), Pre Dive Planning Sequence (PDPS), Set Point, Control Console, and OceanLog are all

registered and unregistered trademarks, trade names, and service marks of Oceanic. All rights are reserved.

PATENT NOTICE

U.S. Patents have been issued, or applied for, to protect the following design features:

Data Sensing and Processing Device (U.S. Patent no. 4,882,678). Set TLBG Alarm and other patents pending. User

Setable Display (U.S. Patent no. 5,845,235) is owned by Suunto Oy (Finland).

DECOMPRESSION MODEL

The programs within the GEO 2 simulate the absorption of nitrogen into the body by using a mathematical model. This

model is merely a way to apply a limited set of data to a large range of experiences. The GEO 2 dive computer model

is based upon the latest research and experiments in decompression theory. Still, using the GEO 2, just as using

the U.S. Navy (or other) No Decompression Tables, is no guarantee of avoiding decompression sick-

ness, i.e. “the bends.” Every diver’s physiology is different, and can even vary from day to day. No machine can

predict how your body will react to a particular dive proﬁle.

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Welcome to

OCEANIC

and

THANK YOU

for choosing the

GEO 2

FEATURES/FUNCTIONS

AND WATCH MODE

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DISPLAY LAYOUT

ICONS

Log Mode

Algorithm

Dual Time On

Nitrox

Surface Interval

Depth id

Daily

AL On

Time id

Deep Stop

is triggered

value is

PO2 (ATA)

Time or #

Temp

value is

Max Depth

value is FO2

Low Batt

Gas #

Descend,

Ascend,

or Stop

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OVERVIEW

The GEO 2 is a unique Watch/Dive Computer featuring >>

• 4 Control Buttons

• 10 Menus

• Gauge Depths to 400 FT/120 M

• Gauge Dive Run Timer

• 34 Set Selections

• Increase/Decrease Set Values

• 4 Operating Modes

• 2 Nitrox Gas Mixes

• 28 Warnings/Alarms

• Dual Watch Time

• Dual Algorithm

• Altitude Compensation

• NDL Conservative Factor

• Variable Ascent Rate

• PC Settings Upload/Data Download

• Audible Alarm with ﬂashing LED

• User Replaceable Battery

• User Upgradeable Firmware

• No Deco Deep Stop

• No Deco Safety Stop

INTERACTIVE CONTROL CONSOLE

The Interactive Control Console utilizes 4 control buttons that allow

you to maneuver through the GEO 2's unique system of menus.

The buttons will be referred to as M, S, A, and L.

• Upper/Left >> M (mode, minus)

• Upper/Right >> S (select, save)

• Lower/Left >> A (advance, access)

• Lower/Right >> L (light)

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MENU SYSTEM

The LCD viewing area is used to display alpha numeric mes-

sages and measured values as well as Menu type systems for

selection of settings and various auxiliary functions.

There are 10 Menus that include the -

GAUG.SURF

• Watch Menu

• Set T Menu

• NORM Menu

• GAUG Menu

• FREE Menu

• Set F Menu

• Set A Menu

• Set M Menu

• Set U Menu

• Set FA Menu

SURF.MAIN

SURF.ALT.1

SURF.ALT.2

FLY

LOG

SET.A

Each Menu has a start (ﬁrst) selection and a stop (last) selection.

Upon entering a Menu, movement through it begins at the start

(ﬁrst) selection, then continues in a rolling manner showing one

selection at a time.

SET.U

SET.M

HISTORY

• The sample at the left shows how a menu would look if all

of the selections would be displayed on one screen.

Sample Menu

(all selections shown)

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Menu button action >>

A (< 2 sec) - to access and step forward through menu selections

A (hold) - to scroll forward through menu selections

M (< 2 sec) - to step backward through menu selections

M (2 sec) - to revert to Main, or move between Watch and DC modes

S (< 2 sec) - to access or save selections

S (2 sec) - to step back to previous selection

Pressing A (< 2 sec) while viewing the last selection in the menu will revert to the ﬁrst selec-

tion (such as Watch or Surface Main).

Pressing M (< 2 sec) while viewing the Surface Main will jump to the last menu selection

(such as Set T or SN), then continued presses will step back through menu items.

BACKLIGHT

To activate the Backlight at any time >> press the L button.

• The Backlight will activate and illuminate the display for button depression time* plus

the Duration time set (0, 5, or 10 seconds), for a maximum of 20 seconds.

(*The Backlight will turn Off if L is depressed for more than 10 seconds.)

• Press L again to activate as desired.

Extensive use of the backlight reduces estimated battery life. Also,

the backlight does not operate during a low battery condition or

when the GEO 2 is connected to a PC.

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AUDIBLE ALARM

While operating in NORM or GAUG Mode the Audible will emit 1 beep per second for

10 seconds when alarms strike, unless it is set Off. During that time, the Audible can be

acknowledged and silenced by pressing the S button (less than 2 seconds).

A LED Warning Light, on the lower end of the housing, is synchronized with the Audible

and ﬂashes as the Audible sounds. It will turn Off when the Alarm is silenced. The Audible

and LED will not be active if the Audible is Set OFF (a group A setting).

FREE Dive Mode has its own set of Alarms which emit 3 short beeps either 1 or 3 times

which cannot be acknowledged or set Off.

Situations that will activate the NORM/GAUG 10 second Alarm include -

** Items activate only in NORM mode.

• Descent deeper than the Depth Alarm Set Point selected.

• Dive Time Remaining at the Set Point selected**.

• Elapsed Dive Time at the Set Point selected.

• PO2 at the Set Point selected**.

• High O2 of 300 OTU (100%)**.

• TLBG at the Set Point selected**.

• Ascent Rate exceeds 60 FPM (18 MPM) when deeper than 60 FT (18 M), or 30 FPM

(9 MPM) at 60 FT (18 M) and shallower.

• Entry into Decompression Mode (Deco)**.

• Conditional Violation (above a required Deco Stop Depth for less than 5 minutes)**.

• Delayed Violation (above a required Deco Stop Depth for more than 5 minutes)**.

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• Delayed Violation (a Deco Stop Depth greater than 60 FT/18 M is required)**.

• Delayed Violation (Max Operating Depth is exceeded).

• A Gas Switch would expose the diver to PO2 => 1.60 ATA**.

• Watch Daily Alarm reaches time set (disabled during Dive Modes).

• Watch Mode Countdown Timer reaches 0:00.

A single short beep (which cannot be disabled) sounds when -

• After 5 minutes on the surface after the Violation dive.

3 short beeps (which cannot be disabled) sound when -

• Ascent Rate is 51 to 60 FPM (15.1 to 18 MPM) when deeper than 60 FT (18 M), or

26 to 30 FPM (7.5 to 9 MPM) at 60 FT (18 M) and shallower.

• FREE Dive Elapsed Dive Time Alarm (3 beeps every 30 seconds if set On).

• FREE Dive Depth Alarms 1, 2, 3 (set sequentially deeper) - each 3 beeps 3 times.

• FREE Dive TLBG Alarm (Caution zone, 4 segments) - 3 beeps 3 times.

• Entry into Deco during a FREE Dive (Violation) - 3 beeps 3 times.

• Free Dive Mode Countdown Timer reaches 0:00 - 3 beeps 3 times.

During the following NORM Dive situations, the 10 second continuous tone will be fol-

lowed by a 5 second steady beep that will not turn off when acknowledged -

• Ascent above a Deco Stop for more than 5 minutes.

• Deco requires a Stop Depth deeper than 60 FT/18 M or deeper.

• Upon Surfacing during a Conditional Violation.

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PC INTERFACE

Interface with a PC, to allow uploading settings and downloading data, is accomplished

by connecting the GEO 2 to a PC USB Port using the special USB Interface Cable.

The software program together with the USB Driver required is on the Oceanlog CD, and

can be downloaded from the OceanicWorldwide web site. The program's HELP** serves

as the user manual which can be printed for personal use.

**Prior to attempting to download data from your GEO 2 or upload settings to it,

review the HELP section of the Oceanlog program. Recommended is to print those

sections of HELP that you consider appropriate for your Interface activities.

The settings upload portion of the Oceanlog program can be used to set/change the Main

Time, Date, Set A group (Alarms), Set U group (Utilities), and FREE mode items using the

same Interface System. FO2 must be set using the control buttons.

Information available for retrieval (download) from the GEO 2 to the PC download portion

of the program includes dive data such as number, surface interval time, maximum depth,

elapsed dive time, no deco status, start date/time, lowest temperature under water, sam-

pling rate, dive proﬁle, and set points.

The Oceanlog program also allows upgrade of select versions of the GEO 2's ﬁrmware

(operating system software) after which the GEO 2 resets all operating data. Since the

upgrades require reset of the GEO 2, they are blocked during 24 hours after dives.

• Refer to page 92 for more details relating to Oceanlog and PC Interface.

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POWER SUPPLY

• Battery >> (1) 3 vdc, CR2430, Lithium battery.

• Shelf life >> up to 7 years (when shipped from factory in

Deep Sleep mode).

• Use life >> 1 year or 300 dive hours if (2) 1 hour dives per

dive day.

• Replacement >> user replaceable (annual recommended).

Low Battery on surface

Fig. 1 - SURFACE MAIN

(low battery warning)

<= 2.75 volts (warning level)

• Backlight is completely disabled.

• Battery icon (shell with inner bar) appears solid (Fig. 1a).

• Watch and DC functions continue to be available.

<=2.50 volts (Too Low - alarm level)

• All Dive Computer operations cease and the unit operates

only as a Watch.

• If in DC mode, the battery icon ﬂashes for 5 seconds and

operation reverts to Watch Time with the icon ﬂashing (Fig.

2) until the Battery is changed or voltage cannot sustain

operation (< 2.35 volts), then the graphics CHG and BAT

alternate until the Battery is changed or voltage drops to

the level at which operation cannot be maintained.

Fig. 2 - WATCH

(low battery alarm)

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Low Battery during dive

<= 2.75 volts (warning level)

• Backlight is completely disabled.

• All DC functions continue to be available.

• Battery icon is not displayed on the dive mode screens.

• Battery icon (shell with inner bar) appears solid upon entry

into Surface Mode.

<= 2.50 volts (Too Low - alarm level)

• Backlight is completely disabled.

• All DC functions continue to be available during the dive.

• Battery icon is not displayed on the dive mode screens.

• Upon entry into Surface Mode, the Battery icon (shell only

with no inner bar) ﬂashes and the graphics CHG and BATT

alternate for 5 seconds (Fig. 3) then operation reverts to

Watch Time.

alt w/

CHG

Fig. 3 - SURF MAIN

(low battery alarm during dive)

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WATCH MAIN (DEFAULT) TIME

Selection of Main (Default) Time is a Set T menu item.

Time of day and date can be set when either Home or Away time is selected as the

default.

Main Time is the current time at your home location and is normally selected as the Watch

Default Time.

Away Time, set by Hour Differential, is the current Time at a remote travel location. Upon

arrival at the location, Away Time can be interchanged with Main Time to make it the

Default Time while visiting the travel location.

Dual Time is the second, or differential time, that can be displayed simultaneously with

Main Time with set On. It is a +/- Hour Differential based on the Time that is set while at

home or the opposite if set while away.

Once Dual Time (a differential) is set, it will automatically change when Time of Day is

changed. When Away Time is selected to be the Watch Default Time (while at a travel

location), it will be changed directly when Time of Day is changed and Home Time will

then change by a differential opposite the one set for Dual Time.

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MAIN (Default) TIME, information includes (Fig. 4A/B):

> Alarm (speaker) icon, if Daily Alarm is set on

> Dual Time (hr:min) with DUAL icon, if set on

> Main (Default) Time (hr:min_sec) with AM (or PM) icon

> Away Time icon (up arrow) meaning Away is selected as

Main Time, blank if Home is Main

> Day of Week graphic (MON, TUE, etc.)

> Battery icon, if a Low Battery

> TLBG, if any after NORM/FREE dives

Fig. 4A - WATCH MAIN

(Home as default)

• A (< 2 sec) - to access the Watch Menu displaying the ﬁrst

selection, Watch ALT.

• M (< 2 sec) - to access the Watch Menu displaying the last

selection, Set T.

• M (2 sec) - to access the NORM Surface Main screen.

• S (< 2 sec) - to silence the Daily Alarm.

• L (press) - to activate the Backlight.

WATCH MENU

Fig. 4B - WATCH MAIN

A (< 2 sec) - to step forward through selections 1 at a time.

A (hold) - to scroll forward through selections (8 per second).

S (< 2 sec) - to access the selection displayed.

M (< 2 sec) - to step back through selections 1 at a time.

M (2 sec, any time) - to revert to Main.

No button action (2 min) - revert to Main.

L (press) - to activate the Backlight.

(Away as default, Dual on)

WATCH.MENU

> ALT <

> DUAL TIME <

> CDT <

> CHRONO <

> DAILY ALARM <

> SET T <

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WATCH ALT, information includes (Fig. 5):

> Date, as Month.Day (or Day.Month)

> Temperature with ° icon and graphic F (or C)

> Altitude graphic EL2 (to EL 7), blank if Sea level

• A < 2 sec - to step forward to Dual Time Lead-in.

• M (< 2 sec) - to step back to Watch Main.

Fig. 5 - WATCH ALT

(Date as Month.Day)

DUAL TIME

This selection allows Dual Time (that at a travel location) to be

added to the Watch Main screen, or removed (see ﬁgure 4).

> ON adds (shows) it, OFF removes it.

Dual Time Lead-in, information includes (Fig. 6):

> DUAL icon

> Graphics SHO, dUAL, and TIME

• S (< 2 sec) - to access Display Dual Time.

• A (< 2 sec) - to step forward to CDT Lead-in.

• M (< 2 sec) - to step back to Watch ALT.

Fig. 6 - DUAL TIME LEAD-IN

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Display Dual Time, information includes (Fig. 7):

> DUAL icon

> Dual Time (hr:min), if set by hour differential (a Set T item),

or 3 dashes ( - : - - ) if none set

> Graphic ADD -

> Set Point graphics* ON (or OFF) ﬂashing

• A (< 2 sec) - to toggle* between ON and OFF.

• S (< 2 sec) - to save the setting and revert to Lead-in.

• S (2 sec) - to step back to Lead-in, if no change.

Fig. 7 - DISPLAY DUAL TIME

(to show on Main)

*OFF only with no toggle if no Differential has been set.

CDT (Countdown Timer)

This selection provides access to a CDT for use in Watch mode.

Upon accessing a dive computer mode, the Watch CDT opera-

tion will be terminated and the time reset to the previous setting.

> Free Mode has a separate (min:sec) CDT.

CDT Lead-in, information includes (Fig. 8):

> Graphics Cdt and WATCH

• S (< 2 sec) - to access CDT Status.

• A (< 2 sec) - to step forward to Chrono Lead-in.

• M (< 2 sec) - to step back to Dual Time Lead-in.

Fig. 8 - CDT LEAD-IN

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CDT Status, information includes (Fig. 9):

> Remaining CDT (hr:min) with ON, if in progress; or

0:00 with OFF if the CD is complete; or

CDT previously set with OFF

> Graphic CDT - OFF (or ON)

• A (< 2 sec) - to step forward through selections of OFF,

ON, and SET.

• M (< 2 sec) - to step back through selections.

• S (< 2 sec) - to save the selection.

Fig. 9 - CDT STATUS

>> If OFF or ON is selected, revert to the Lead-in screen.

>> If SET is selected, access the Set CDT screen.

Set CDT, information includes (Fig. 10):

> Graphics SEt and CDT - OFF

> CDT (hr:min) with Hour digits ﬂashing

• A (hold) - to scroll upward through Hour Set Points at a rate

of 8 per second from 0: to 23: in increments of 1: (hr).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Hour Set Point and ﬂash the Minute

digits.

Fig. 10 - SET CDT

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• A (hold) - to scroll upward through Minute Set Points at a

rate of 8 per second from :00 to :59 in increments of :01

(min).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the CDT Set Point and revert to the

CDT Status screen with the graphic SEt ﬂashing (Fig. 11).

Fig. 11 - CDT STATUS

(after being set)

> Selecting ON will then start the countdown and revert to the Lead-in

screen.

> Selecting OFF will save the setting and revert to the Lead-in screen.

The CDT will run in the background, while in Watch mode, until

it counts down to 0:00, or it is set OFF, or DC Mode is accessed

or a Dive is started in which case the countdown will terminate

and revert to OFF.

When a set Countdown Time reaches 0:00, the Audible Alarm

will sound during which time the graphic CDT will ﬂash on the

Watch Main Time screen (Fig. 12).

Fig. 12 - WATCH MAIN

(during CDT alarm)

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CHRONOGRAPH

The Chronograph is a stop watch timer for use in Watch mode.

While the Chronograph is running, it remains on the screen until

another screen is accessed, it will then continue to run in the

background while on the surface.

Upon activation of dive mode, Chrono operation will be termi-

nated and the time will reset to 0:00:00_00.

Fig. 13 - CHRONO LEAD-IN

Chrono Lead-in, information includes (Fig. 13):

> Graphics Chro and WATCH

• S (< 2 sec) - to access Chrono Status.

• A (< 2 sec) - to step forward to Daily Alarm Lead-in.

• M (< 2 sec) - to step back to CDT Lead-in.

1/100th

sec

Chrono Status, information includes (Fig. 14):

> Graphics LAP1 (or 2 to 9) and CHR

> Elapsed run time counting up (if previously started), or

0:00:00_00 (hr:min:sec_1/100th sec), ﬂashing

• If stopped, S (< 2 sec) - to start Timer counting up from

0:00:00_00 to 9:59:59_99 max in increments of .01 sec.

After ﬁrst 4.99 seconds, the .01 digits display 2 dashes.

Fig. 14 - CHRONO STATUS

(Lap 2 in progress)

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• S (< 2 sec) - to save that Lap and display the next (up to 9,

then restart with 1), with the time continuing to count up.

• A (< 2 sec) - to stop the Timer and recall Lap 1 displaying

it's time, repeat to recall other Lap times.

• A (2 sec) - to reset time to 0:00:00_00.

• S (2 sec) - to exit and revert to the Chrono Lead-in screen.

DAILY ALARM

When set On, the Daily Alarm will -

Fig. 15 - DAILY ALARM

LEAD-IN

> be synchronized with the Watch Default Time selected

> sound the Audible at the Time set every day

> not sound the Audible while operating in DC Modes

> run in the background until set Off

Daily Alarm Lead-in, information includes (Fig. 15):

> Graphics AL and DAILY with alarm (speaker) icon

• S (< 2 sec) - to access Chrono Status.

• A (< 2 sec) - to step forward to Daily Alarm Lead-in.

• M (< 2 sec) - to step back to CDT Lead-in.

Daily Alarm Status, information includes (Fig. 16):

> Alarm (speaker) icon

> Alarm Time set (hr:min) with AM (or PM) icon if 12 Hour

> Graphic AL -

> Graphic ON (or OFF) ﬂashing

Fig. 16 - DAILY ALARM

STATUS (upon access)

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• A (< 2 sec) - to step forward through the selections of OFF,

ON, and SET (Fig. 17).

• M (< 2 sec) - to step back through the selections.

• S (< 2 sec) - to save the selection.

• If OFF or ON is selected, S (< 2 sec) - to revert Set Daily

Alarm Lead-in.

• If SET is selected, S (< 2 sec) - to access the Set screen.

Fig. 17 - DAILY ALARM

STATUS (to access Set)

Set Daily Alarm, information includes (Fig. 18):

> Graphics SEt and AL with alarm icon

> Alarm Time (hr:min), Hour digits ﬂashing, with AM (or PM)

icon; no icon if 24 Hour Format

• A (hold) - to scroll upward through Hour Set Points at a rate

of 8 per second from 0: to 23: in increments of 1: (hr).

• A (< 2 sec) - to step upward through Hour Set Points one at

a time.

• M (< 2 sec) - to step back through Set Points one at a time

• S (< 2 sec) - to save the Hour and ﬂash the Minute digits.

• A (hold) to scroll upward through Minute Set Points at a rate

of 8 per second from :00 to :59 in increments of :01 (min).

• A (< 2 sec) to step upward through Minute Set Points one

at a time.

• M (< 2 sec) to step back through Set Points one at a time.

Fig. 18 - SET DAILY ALARM

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• S (< 2 sec) - to save the Alarm Set Point and revert to the

Daily Alarm Status screen with OFF ﬂashing (Fig. 19).

To turn the alarm function On -

• A (< 2 sec) - to step through the selections (of OFF, ON,

SET) to ON.

• M (< 2 sec) - to step back through the selections.

• S (< 2 sec) - to save the ON* selection and revert to the Set

Daily Alarm Lead-in.

Fig. 19 - DAILY ALARM

STATUS (Set, ready)

*Selecting and saving OFF will retain the time set and revert

to the Lead-in. It can then be turned On when ready.

SET T MENU (TIME)

Sequence >> Lead-in >> Date Format >> Hour Format >> Default Time

>> Dual Time >> Time of Day >> Date

Set Points remain as set until changed.

Set T Lead-in, information includes (Fig. 20):

> Graphics SEt and T

• S (< 2 sec) - to access Set Date Format.

• A (< 2 sec) - to step forward to Watch Main Time.

• M (< 2 sec) - to step back to Daily Alarm Lead-in.

Fig. 20 - SET T LEAD-IN

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Set Date Format, information includes (Fig. 21):

Date Format establishes the location that the Month (M) digits

are displayed relative to the Day (D) digits, on the left or right.

> Graphic SEt

> Set Point graphics M-D (or D-M) ﬂashing

• A (< 2 sec) - to toggle Set Points.

• S (< 2 sec) - to save Set Point and access Set Hour Format.

• S (2 sec) - to step back to Set T Lead-in.

Fig. 21 - SET DATE FORMAT

Set Hour Format, information includes (Fig. 22):

Hou Format establishes number of hours displayed for Time of

Day, 1 to 12 (AM and PM) or 1 to 24.

> Graphics SEt and HR-

> Set Point graphic 12 (or 24) ﬂashing

• A (< 2 sec) - to toggle Set Points.

• S (< 2 sec) - to save Set Point and access Set Watch Default

Time.

• S (2 sec) - to step back to Set Date Format.

Fig. 22 - SET HOUR FORMAT

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Select Default Time, information includes (Fig. 23A/B):

This feature selects which Time, Home or Away**, is to be

displayed as the Watch Main (Default) Time (in the center of the

Watch Time screen)*.

*The other will be displayed (at the top of the Watch Time screen) when

a Dual Time (differential) is set and Display Dual Time is set On.

> Graphics SEL and dFLT

> Graphic HOME (or AWAY*) ﬂashing

Fig. 23A - SELECT HOME

(as Watch Default Time)

**The Up Arrow icon is used (only while in Watch mode) to indicate

that Away Time is selected as the Watch Default Time (in the center).

• A (< 2 sec) - to toggle between HOME and AWAY.

• S (< 2 sec) - to save Set Point and access Set Dual Time

Differential.

• S (2 sec) - to revert to Set Hour Format.

HOME is the time where you live, work, spend most of your time.

AWAY is the time set for a travel destination.

DEFAULT is the time you choose as the Watch's local main time (Home or Away).

DUAL is the time at the other remote location (Away or Home).

Fig. 23B - SELECT AWAY

(as Watch Default Time)

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Set Dual Time Differential, information includes (Fig. 24):

This feature allows you to set an Hour based numeric time Dif-

ferential ranging from - 23 through 0 to + 23 (hours).

This feature provides a second (Dual) Time equal to the Watch's

Default Time of Day +/- the Hours selected.

> Graphics SEt and HR

> Graphic OFF or the Differential numeric digits with + (or - )

icon ﬂashing

Fig. 24 - SET DUAL TIME

(hour differential)

> Away Time (Up Arrow) icon if Away is the Watch Default

Time, no icon if Home is the Default

• A (hold) - to scroll upward through the Set Points at a rate

of 8 per second from - 23 through 0 to + 23 in increments

of 1 (hour).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Differential Set Point and revert to

the Set Time Menu.

Example (Fig. 25):

-> Watch Time displays 3:02 PM.

-> Dual Time Differential is set for + 2 Hours.

-> Dual Time would be displayed as 5:02.

Fig. 25 - WATCH TIME

(Dual Time set and On)

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Set Time of Day, information includes (Fig. 26A/B):

This setting directly changes the Time of Day that is selected to

be the Watch Default Time, whether it is Home Time or Away

(travel location) Time. The other will be changed by the Dual

Time Differential set.

> Graphic SEt

> Time of Day (hr:min), Hour digits ﬂashing, with AM (or PM)

icon if 12 hour Format, no icon if 24 Hour

> Away (Up Arrow) icon, if Away is the Watch Default Time

Fig. 26A - SET TIME

(while at Home)

• A (hold) - to scroll upward through Hour Set Points at a rate

of 8 per second from 12: AM to 11: PM, or 0: to 23: if

24 Hour Format, in increments of 1: (hr).

• A (< 2 sec) - to step upward through Set Points one at a

time.

indicates Away

is Default Time

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Hour Set Point and ﬂash the Minute

digits.

• S (2 sec) - to step back to Set Dual Time Differential.

• A (hold) - to scroll upward through Minute Set Points at a

rate of 8 per second from :00 to :59 in increments of :01

(min).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

Fig. 26B - SET TIME

(while Away)

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• S (< 2 sec) - to save the Time Set Point and access Set Date.

• S (2 sec) - to step back to Set Hour.

Set Date, information includes (Fig. 27):

The sequence for setting date is Year, then Month, then Day,

regardless of the Date Format set.

> Month.Day (or Day.Month) digits

> Year digits ﬂashing

> Graphics M - D (or D - M), identifying top row digits

Fig. 27 - SET DATE

• A (hold) to scroll upward through Year Set Points at a rate

of 8 per second from 2009 to 2052, in increments of 1.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Year Set Point and ﬂash the Month

digits.

• S (2 sec) - to step back to Set Time.

• A (hold) - to scroll upward through Month Set Points at a

rate of 8 per second from 1 to 12 in increments of 1.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Month Set Point and ﬂash the Day

digits.

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• S (2 sec) - to step back to Set Year

• A (hold) - to scroll upward through Day Set Points at a rate

of 8 per second from 1 to 31 (max) in increments of 1

• A (< 2 sec) - to step upward through Set Points one at a

time

• M (< 2 sec) - to step back through Set Points one at a time

• S (< 2 sec) - to save the Date Set Point and revert to the Set

T Lead-in.

• S (2 sec) - to step back to Set Month.

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DIVE COMPUTER OPERATING MODES

NORM Mode >> for Air and Nitrox SCUBA activity with 1 or 2 Gases

GAUG Mode >> for SCUBA activity

FREE Mode >> for breath hold diving activity with Depth/Time indication

If no previous dive has been taken within the past 24 hours, NORM is the default upon

access from Watch Mode. Others can be accessed using the Surface Menu.

At any time while operating in Surface Modes, operation will enter the Dive Mode se-

lected upon descent to 5 FT (1.5 M) for 5 seconds.

Operation will revert from Dive Mode to Surface Mode upon ascent to 2 FT (0.6 M) for 1

second.

During the ﬁrst 10 minutes after a NORM/GAUG dive, or 1 minute after a FREE dive, the

Dive Main screen will remain on displaying Max Depth and Elapsed Dive together with

Surface Interval Time in place of Current Depth.

• During the ﬁrst 10 minutes (or 1 minute), Dive ALT screens can be viewed.

• A descent during the ﬁrst 10 minutes after surfacing from a NORM or GAUG dive,

or the ﬁrst 1 minute after surfacing from a FREE dive, is a continuation of that dive.

• After the 10 minute (or 1 minute) interval has elapsed, the normal Surface Main will

be displayed with access given to the Surface Menu selections. A descent is then

considered a new dive.

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DIVE COMPUTER MODE ACCESS

WATCH

DFLT.TIME

NORM

SURF.MAIN

2 sec

Shown is access to NORM from Watch,

then to GAUG from NORM.

< 2 sec

Access from NORM to FREE, GAUG to

FREE, GAUG to NORM, FREE to NORM ,

and FREE to GAUG are similar.

NORM.MENU

ALT.1

< 2 sec

While operating in the menu, operation will

revert to the Main screen if M is pressed for

2 seconds or if no button is pressed within

a 2 minute period.

ALT.2

ALT.3

FLY/SAT

PLAN

LOG

< 2 sec

SET.F

SET.A

SET.U

SET.M

SEL

DIVE.MODE

NORM

GAUG

FREE

GAUG

SURF.MAIN

< 2 sec

HISTORY

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NORM SURFACE MENU/MODES

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NORM SURF MAIN, information includes (Fig. 28):

> Surface Interval time (hr:min) with SURF icon; if no dive yet,

this is time since activation

> Time of Day (hr:min) with AM or PM icon if 12 Hour

Format; no icon if 24 Hour Format

> Graphic NOR

> Dive number with DIVE icon, up to 24 for that operating

period (0 if no dive made yet)

> NX icon, if FO2 is set for Nitrox

Fig. 28 - NORM SURF MAIN

(no dive yet)

> (PZ+) icon, if selected, no icon if DSAT is selected

> CF icon, if Conservative Factor is set On

> Gas 1 icon, default in Surface Mode

> TLBG with icon, if any after a NORM or FREE dive

> Battery icon, if voltage is low

Time of Day does not display

Seconds in dive modes.

• A (< 2 sec) - to access ALT 1.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to access SN.

• L (press) - to activate Backlight.

Upon surfacing during dives, the Dive Main will remain on

display for the ﬁrst 10 minutes with Surface Interval time (SI) in

place of Depth after which the post dive Surface Main will be

displayed (Fig. 29).

Fig. 29 - NORM SURF MAIN

(> 10 min after dive 2)

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NORM SURF ALT 1, information includes (Fig. 30):

> SI* (hr:min) with SURF icon, prior to Last dive

> Graphic LAST, indicating data is for dive previously

conducted while still in NORM mode

> Max Depth* of dive previously conducted while still in

NORM mode with MAX and FT (or M) icons

> EDT* (Elapsed Dive Time up to 999 min) with DIVE and min

icons

* dashes if no previous dive conducted

Fig. 30 - NORM SURF ALT 1

(Last dive's data)

• A (< 2 sec) - to access ALT 2.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to step back to Main.

• L (press) - to activate Backlight.

NORM SURF ALT 2, information includes (Fig. 31):

> Temperature with ° icon and graphic F (or C)

> Altitude graphic, if EL2 (to EL7), blank if Sea level

• A (< 2 sec) - to access ALT 3 (if a Nitrox dive has been

conducted, bypassed to Fly/Sat if not).

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to step back to ALT 1.

• L (press) - to activate Backlight.

Fig. 31 - NORM SURF ALT 2

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NORM SURF ALT 3, information includes (Fig. 32):

> Current O2 (%) with O2SAT icon

> PO2 alarm value set (ATA) with PO2 and MAX icons

> FO2 set for Gas 1 with FO2 icon

> NX icon, if FO2 is set for Nitrox

> (PZ+) icon, if selected, no icon if DSAT is selected

> CF icon, if Conservative Factor is set On

> Gas 1 icon, default on surface

Fig. 32 - NORM SURF ALT 3

(only if Nitrox)

• A (< 2 sec) - to access Fly/Sat.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to step back to ALT 2.

• L (press) - to activate Backlight.

FLY/SAT TIME

Time to Fly is a countdown timer that begins counting down from 23:50 to 0:00 (hr:min)

10 minutes after surfacing from a dive (NORM, GAUG, or FREE).

Time to Dsaturate, also a countdown timer, provides calculated time for tissue desaturation

at sea level taking into consideration the Conservation Factor setting. It also begins count-

ing down 10 minutes after surfacing from a dive (NORM or FREE), counting down from

23 to 10 (hr only), then 9:59 to 0:00 (hr:min).

When the SAT countdown reaches 0:00, which will generally occur prior to the FLY count-

down reaching 0:00, it will remain on the display until the FLY countdown reaches 0:00.

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> When other screens are accessed, the FLY and SAT

countdowns continue in the background.

> SAT is not displayed after a Gauge or Violation dive.

> Desaturation requiring Times greater than 24 hours will

display 24 until it decreases to 23 (hr) .

> In the event that Time to Desaturate still remains at the end

of 24 hours, any remaining time will be cleared.

FLY/SAT, information includes (Fig. 33A, B):

> Graphic FLY with Time to Fly (hr:min), - : - - if no dive yet

> Graphic SAT with Time to Desat (hr:min), - : - - if no dive

yet, 0:00 if no time remaining

Fig. 33A - FLY/SAT

(no dive yet)

• A (< 2 sec) - to access Plan.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to step back to ALT 3 (if Nitrox), or ALT 2 (if

not).

• L (press) - to activate Backlight.

Fig. 33B - FLY/SAT

(10 min after dive)

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PLAN MODE (NORM)

No Deco Dive Times (NDLs/OTLs) in Plan Mode are based on -

> the algorithm selected (DSAT or PZ+)

> the FO2 set (for Gas 1 only, the default for Plan)

> the setting for the Conservative Factor (Off or On*)

> any residual nitrogen or oxygen remaining from previous

dives (NORM or FREE)

*When the Conservative Factor is set On, Dive times are reduced to the values

of the next higher 3000 foot (915 meter) Altitude. Refer to tables in back.

Fig. 34A - PLAN LEAD-IN

(Gas 1 set for Air)

Plan Lead-in, information includes (Fig. 34A, B):

> Graphic PLAN

> PO2 alarm value set (ATA) with PO2 icon, blank if Air

> Gas 1 FO2 Set Point, graphic Air or numeric value (21 to

100), with FO2 and Gas 1 icons

> NX icon, if FO2 is set for Nitrox

> (PZ+) icon, if selected, no icon if DSAT is selected

> CF icon, if Conservative Factor is set On

> Gas 1 icon, default for Plan

• A (< 2 sec) - to access Log.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to step back to FLY/SAT.

• S (< 2 sec) - to access PDPS.

• L (press) - to activate Backlight.

Fig. 34B - PLAN LEAD-IN

(Gas 1 set for Nitrox)

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PDPS (Pre Dive Planning Sequence)

The PDPS displays Depths and allowable No Deco Dive Times

(up to 999 minutes), NDLs (nitrogen based limits) if nitrogen is in

control or OTLs (oxygen based limits) if O2 is in control.

It will sequence through PDPS screens displaying Depths from 30

to 190 FT (9 to 57 M) with Plan times* based upon the previ-

ous dive proﬁles in a series of repetitive dives and taking into

account descent and ascent rates of 60 FPM (18 MPM).

Fig. 35A - PDPS

(nitrogen control)

*If less then 1 minute time is available, dashes will be displayed for time, and

Depth values will ﬂash.

PDPS, information includes (Fig. 35A, B):

> Plan Depth value with FT (or M) icon

> Dive Time allowed with NDC (or O2) and min icons

> Max Depth allowed for the PO2 alarm value set with MAX

and FT (or M) icons, blank if FO2 is set for Air

> Gas 1 FO2 Set Point, graphic Air or numeric value (21 to

100), with FO2 icon

> NX, (PZ+), CF icons - those that apply

> Gas 1 icon, default for Plan

• A (< 2 sec) - to step forward through PDPS screens.

• A (hold) - to scroll forward through PDPS screens at a

rate of 8 per second from 30 to 190 FT (9 to 57 M) in

increments of 10 FT (3 M).

Fig. 35B - PDPS

(oxygen control)

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• M (< 2 sec) - to step back through PDPS screens.

• S (< 2 sec) - to revert to the Lead-in after the last screen.

• S (2 sec) - to revert to the Lead-in screen.

• L (press) - to activate Backlight.

LOG MODE (NORM/GAUG)

Information from the latest 24 NORM and/or GAUG dives** is stored for viewing.

> After exceeding 24 dives, the most recent dive is stored while the oldest is deleted.

> Dives are numbered from 1 to 24 starting each time NORM (or GAUG) Dive Mode is

activated. After the post dive 24 hour period has elapsed and the unit shuts off, the

ﬁrst dive of the next activation period will be #1.

> In the event that a dive’s elapsed time (EDT) exceeds 599 (min), the data at the 599

interval is recorded in the Log upon surfacing of the unit.

**FREE Dive information is only available using the OceanLog PC Interface download.

Log sequence >> Lead-in >> Preview >> Data 1 >> Data 2 >> Data 3

Log Lead-in, information includes (Fig. 36):

> Log (book) icon

> Graphics NOR - GAU

• A (< 2 sec) - to access Set F Lead-in.

• M (< 2 sec) - to step back to Plan Lead-in.

• S (< 2 sec) - to access Log Preview.

• L (press) - to activate Backlight.

Fig. 36 - LOG LEAD-IN

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Log Preview, information includes (Fig. 37):

> Log Mode (book) icon

> Date (month.day or day.month), the dive was conducted; or

blank if none recorded

> Time dive began (hr:min) with AM (or PM) icon if 12 Hour

Format, no icon if 24 Hour Format; or graphic NONE

> Graphic NOR (or GAU or VIO or YET - )

> Dive number (1 to 24, 0 if no dive yet) with DIVE icon

> NX, (PZ+), CF, DS icons - those that apply

Fig. 37 - LOG PREVIEW

(after NORM dive 1)

• A (< 2 sec) - to step through Preview screens from the most

recent to the oldest recorded.

• A (hold) - to scroll through Preview screens from the most

recent to the oldest recorded at a rate of 8 per second.

• M (< 2 sec) - to step through Preview screens in the

opposite direction.

• S (< 2 sec) - to access Data 1 for the dive Preview

displayed.

• S (2 sec) - to revert to the Lead-in screen.

• L (press) - to activate Backlight.

Log Data 1, information includes (Fig. 38A, B):

> Log Mode (book) icon

> Pre dive SI (hr:min), - : - - if no pevious dive that activation

period, with SURF icon

> Total Ascent Time (min) with TAT and min icons, if Deco

Fig. 38A - LOG DATA 1

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> Max Depth with MAX and FT (or M) icons

> EDT with DIVE and min icons

> TLBG with the max accumulation segment ﬂashing, others

ﬁxed up to end of dive accumulation. All segments ﬂashing

if a Delayed Violation. No TLBG if Gauge Mode.

> VARI, max Ascent Rate sustained for 4 sec

> NX, (PZ+), CF, DS icons - those that apply

• S (< 2 sec) - to access Data 2 for that dive.

• S (2 sec) - to revert to Preview screen.

• L (press) - to activate Backlight.

Fig. 38B - LOG DATA 1

(Deco during dive)

Log Data 2, information includes (Fig. 39):

> Log Mode (book) icon

> Temperature (minimum that dive) with ° icon and graphic F

(or C)

> Graphic SEA (or EL2 to EL7), indicating the Altitude at

which the dive was conducted

• S (< 2 sec) - to access Data 3 for that dive; or revert to

Preview if a GAUG dive.

• S (2 sec) - to revert to the Data 1 screen.

• L (press) - to activate Backlight.

Fig. 39 - LOG DATA 2

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Log Data 3, information includes (Fig. 40):

> Log Mode (book) icon

> O2% at end of dive, 2 dashes if Violation Gauge Mode,

with O2SAT icons

> Highest PO2 (ATA) reached during the dive with PO2 and

MAX icons

> FO2 Set Point (or graphic Air) for Gas in use when dive

ended, with FO2 icon

> Gas 1 (or 2) icon, one in use when dive ended

> NX, (PZ+) icons - if they apply

Fig. 40 - LOG DATA 3

• S (< 2 sec) - to revert to the Preview screen.

• S (2 sec) - to revert to the Data 2 screen.

• L (press) - to activate Backlight.

SET F MENU (NORM FO2)

Sequence >> FO2 Gas 1 >> FO2 Gas 2 >> 50% Default

When the FO2 50% Default is set Off, FO2 will remain set at the last FO2 Gas 1 Set Point

saved during that period of activation.

When the FO2 50% Default is set On and FO2 for Gas 1 is set for a numerical value, 10

minutes on the surface after that dive the FO2 Gas 1 will be displayed as 50 and further

dives will be calculated based on 50% O2 for oxygen calculations and 21% O2 for Nitro-

gen calculations (79% Nitrogen), unless FO2 Gas 1 is set before the dive.

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FO2 Gas 1 will continue to reset to the FO2 50% Default after subsequent repetitive dives

until 24 hours elapse after the last dive, or the FO2 50% Default is set Off.

FO2 set to Air

The default FO2 setting for Gas 1 each new activation period will be Air.

When FO2 Gas 1 is set for Air -

> calculations are the same as when FO2 is set for 21%.

> it will remain set for Air until set for a numerical FO2 value (21 to 100%).

> O2 data (such as PO2, O2%) will not be displayed at any time during the dive, on

the surface, or during the PDPS.

> MODs (Max Operating Depths) will not be displayed on the FO2 set screen.

> internally, it will keep track of O2 data in case FO2 for Gas 1 is subsequently set for

Nitrox for repetitive dives.

FO2 set for Nitrox

When FO2 for either Gas is set for a numerical value (21 to 100%), the dive is considered

Nitrox and the NX icon will be displayed.

> The Air option will not be displayed as a Set FO2 for Gas 1 set selection until 24

hours elapse after the last dive.

> There are no restrictions for setting FO2 values for Gas 1 and 2.

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Set F Lead-in, information includes (Fig. 41):

> Graphics SEt and F

• A (< 2 sec) - to step forward to Set A Lead-in.

• M (< 2 sec) - to step back to Log Lead-in.

• S (< 2 sec) - to access Set FO2 Gas 1.

Set FO2 Gas 1, information includes (Fig. 42):

> Graphic SEt if Air; or Max Depth allowed for the PO2

alarm set with FT (or M) and NX icons if Nitrox

> Gas 1 (tank) icon

Fig. 41 - SET F LEAD-IN

> PO2 alarm value set (ATA) with PO2 and MAX icons, blank

if Air

> Graphic Air, or numeric FO2 Set Point value if Nitrox,

ﬂashing, with FO2 icon

• A (hold) - to scroll upward through Set Points at a rate of

8 per second from Air (default) to 21 through 100 (%) in

increments of 1%.

- or -

> The scroll will stop when A is released, or at 32, 50, and 80% (even if A

is held depressed). Pressing and holding A again will resume the scroll

through 100, then stop at Air or 21%.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set FO2 Gas 2.

• S (2 sec) - to revert to Set FO2 Lead-in.

Fig. 42 - SET FO2 GAS 1

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Set FO2 Gas 2, information includes (Fig. 43):

> Graphic SEt if Air; or Max Depth allowed for the PO2

alarm set with FT (or M) and NX icons if Nitrox

> Gas 2 (tank) icon

> PO2 alarm value set (ATA) with PO2 and MAX icons, blank

if Air

> Graphic Air, or numeric FO2 Set Point value if Nitrox,

ﬂashing, with FO2 icon

Fig. 43 - SET FO2 GAS 2

• A (hold) - to scroll upward through Set Points at a rate of

8 per second from Air (default) to 21 through 100 (%) in

increments of 1%.

> The scroll will stop when A is released, or at 32, 50, and 80% (even if A

is held depressed). Pressing and holding A again will resume the scroll

through 100, then stop at Air or 21%.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set FO2 Default

if FO2 1 or 2 is Nitrox or Set F Lead-in if both are Air.

• S (2 sec) - to revert to Set FO2 Gas 1.

Set FO2 Default, information includes (Fig. 44):

> Graphics Set, dFLt, and 50 -

> Graphics OFF (or OFF) ﬂashing

> NX and FO2 icons

Fig. 44 - SET FO2 DEFAULT

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• A (< 2 sec) - to toggle OFF and ON.

• S (< 2 sec) - to save the setting and revert to Set F Lead-in.

• S (2 sec) - to revert to Set FO2 Gas 2.

SET A MENU (NORM/GAUG ALARMS)

Sequence >> Lead-in >> Aud >> Depth >> EDT >> TLBG* >> DTR* >>

PO2*

*Items apply to NORM only.

Fig. 45 - SET A LEAD-IN

Set Points remain as set until changed.

Set A Lead-in, information includes (Fig. 45):

> Graphics SEt and A

• A (< 2 sec) - to step forward to Set U Lead-in.

• M (< 2 sec) - to step back to Set F Lead-in.

• S (< 2 sec) - to access Set Audible Alarm.

Set Audible Alarm, information includes (Fig. 46):

> Graphics SEt and AUD -

> Set Point graphic ON (or OFF) ﬂashing

• A (< 2 sec) - to toggle between ON and OFF.

• S (< 2 sec) - to save the setting and access Set Depth

Alarm.

• S (2 sec) - to revert to Set A Lead-in.

Fig. 46 - SET AUD AL

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Set Depth Alarm, information includes (Fig. 47):

> Graphic SEt

> Graphic OFF or Depth value ﬂashing with MAX and FT (or

M) icons

• A (hold) to scroll upward through Set Points at a rate of 8

per second from 30 to 330 FT (10 to 100 M) in increments

of 10 FT (1 M).

• A (< 2 sec) - to step upward through Set Points one at a

time.

Fig. 47 - SET DEPTH AL

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set EDT Alarm.

• S (2 sec) - to revert to Set Audible Alarm.

Set EDT Alarm, information includes (Fig. 48):

> Graphics SEt and EDT -

> Time value ﬂashing with DIVE and min icons

• A (hold) - to scroll upward through Set Points at a rate

of 8 per second from OFF to 10 through 180 (min) in

increments of 5 min.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set TLBG Alarm.

• S (2 sec) - to revert to Set Depth Alarm.

Fig. 48 - SET EDT AL

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Set TLBG Alarm, information includes (Fig. 49):

> Graphics SEt and TBG (Tissue Bar Graph)

> Graphic OFF or TLBG segments with icon ﬂashing

• A (< 2 sec) - to step upward through Set Points from OFF to

1 through 4 segments one at a time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set DTR Alarm.

• S (2 sec) - to revert to Set EDT Alarm.

Fig. 49 - SET TLBG AL

Set DTR Alarm, information includes (Fig. 50):

> Graphics SEt and DTR -

> Time Value (min) ﬂashing with min icon

• A (hold) - to scroll upward through Set Points at a rate of 8

per second from OFF to 5 through 20 (min) in increments

of 1 min.

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set PO2 Alarm.

• S (2 sec) - to revert to Set TLBG Alarm.

Fig. 50 - SET DTR AL

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Set PO2 Alarm, information includes (Fig. 51):

> Graphic SEt with PO2, MAX, and Nx icons

> PO2 value ATA (atmospheres absolute) ﬂashing

• A (< 2 sec) - to step upward through Set Points from 1.20 to

1.60 one at a time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and revert to Set A Lead-in.

• S (2 sec) - to revert to Set DTR Alarm.

Fig. 51 - SET PO2 AL

SET U MENU (UTILITIES)

Sequence >> Lead-in >> Wet >> Units >> DS* >> SS* >> Algo* >> CF*

>> Glo >> SR

*Items apply to NORM only.

Set Points remain as set until changed.

Set U Lead-in, information includes (Fig. 52):

> Graphics SEt and U

• A (< 2 sec) - to step forward to Set T Lead-in.

• M (< 2 sec) - to step back to Set A Lead-in.

• S (< 2 sec) - to access Set Wet.

Fig. 52 - SET U LEAD-IN

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Set Wet Activation, information includes (Fig. 53):

> Graphics SEt and WET -

> Set Point ON (or OFF) ﬂashing

• A (< 2 sec) - to toggle between ON and OFF.

• S (< 2 sec) - to save the setting and access Set Units.

• S (2 sec) - to revert to Set U Lead-in.

Fig. 53 - SET WET

ACTIVATION

Set Units, information includes (Fig. 54):

> Graphic Set

> Set Point IMP (or MET) ﬂashing with FT (or M) icon

• A (< 2 sec) - to toggle between IMP and MET.

• S (< 2 sec) - to save the setting and access Set DS.

• S (2 sec) - to revert to Set Wet.

Set Deep Stop (DS), information includes (Fig. 55):

> Graphics SEt and DS with DS and Stop arrow/bar icons

> Set Point ON (or OFF) ﬂashing

Fig. 54 - SET UNITS

• A (< 2 sec) - to toggle between ON and OFF.

• S (< 2 sec) - to save the setting and access Set SS.

• S (2 sec) - to revert to Set Units.

Fig. 55 - SET DS

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Set Safety Stop (SS), information includes:

> Graphic SEt with Stop arrow/bar icons

> Graphic SS with Set Point ON (or OFF) ﬂashing, or graphic

TMR with ON ﬂashing

• A (< 2 sec) - to step forward through the Set Points (SS OFF,

SS ON, TMR ON.

• S (< 2 sec) - to save the setting.

• S (2 sec) - to revert to Set DS.

Fig. 56A - SET SS OFF

>> If SS OFF (Fig. 56A) or TMR ON (Fig. 56B) is selected,

operation shall access Set Algorithm.

>> If SS ON is selected (Fig. 56C), Stop Depth and Time is

displayed with the min and sec icons, Time ﬂashing.

• A (< 2 sec) - to toggle Stop Time Set Points between 3:00

and 5:00 (min:sec).

Fig. 56B - SET SS TIMER

• S (< 2 sec) - to save the Stop Time setting and ﬂash the Stop

Depth digits.

• A (< 2 sec) - to step up through Depth Set Points of 10, 15,

and 20 FT (or 3, 4, 5, and 6 M) one at a time

• S (< 2 sec) - to save the Stop Depth setting and access Set

Algorithm.

Fig. 56C - SET SS

TIME/DEPTH

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Set Algorithm, information includes (Fig. 57):

> Graphics SEt and ALGO

> Set Point graphic PZ+ (or DSAT) ﬂashing

• A (< 2 sec) - to toggle between DSAT and PZ+.

• S (< 2 sec) - to save the setting and access Set CF.

• S (2 sec) - to revert to Set SS.

This feature allows selection of the algorithm to be used for nitrogen

and oxygen calculations for Plan and DTR values.

Fig. 57 - SET ALGORITHM

The setting locks in for 24 hours after NORM dives.

Set Conservative Factor (CF), information includes (Fig. 58):

> Graphics SEt and CF with CF icon

> Set Point graphics ON (or OFF) ﬂashing

• A (< 2 sec) - to toggle between ON and OFF.

• S (< 2 sec) - to save the setting and access Set Glo.

• S (2 sec) - to revert to Set Algorithm.

When CF is set On, NDLs are reduced to values equivalent to those

that would be available at the next higher 3000 foot (915 meter)

Altitude. Refer to tables in back of manual.

Fig. 58 - SET CF

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Set Backlight Duration (Glo), information includes (Fig. 59):

> Graphics SEt and GLO -

> Time Set Point ﬂashing with sec icon

• A (< 2 sec) - to step upward through Set Points of 0, 5, and

10 (sec) one at a time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and access Set SR.

• S (2 sec) - to revert to Set CF.

Fig. 59 - SET GLO

Backlight (Glo) Duration is the time the backlight will remain On

after L is released (0 = no additional time).

Set Sampling Rate (SR), information includes (Fig. 60):

> Graphics SEt and SR -

> Time Set Point ﬂashing with sec icon

• A (< 2 sec) - to step upward through Set Points of 2, 15, 30,

and 60 (sec) one at a time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting and revert to Set U Lead-in.

• S (2 sec) - to revert to Set Glo.

Sampling Rate is the frequency at which data is sampled and stored

for download to the OceanLog PC Interface program.

Fig. 60 - SET SAMPLING

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SET M (DIVE OP MODE)

Sequence >> Lead-in >> NOR (or GAU or FRE)

Set Point remains as set until changed.

Set M Lead-in, information includes (Fig. 61):

> Graphics SEt and M

• A (< 2 sec) - to step forward to History.

• M (< 2 sec) - to step back to Set U Lead-in.

• S (< 2 sec) - to access Set Dive Op Mode.

Fig. 61 - SET M LEAD-IN

Set Dive Operating Mode, information includes (Fig. 62):

> Graphics SEt and OP with DIVE icon

> Set Point ﬂashing

• A (< 2 sec) - to step forward through Set Points of NOR,

GAU, and FRE.

• M (< 2 sec) - to step back through Set Points.

• S (< 2 sec) - to save the setting and access that mode's

Surface Main screen.

• S (2 sec) - to revert to Set M Lead-in.

Fig. 62 - SET DIVE OP MODE

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HISTORY MODE (NORM/GAUG)

History is a summary of basic data recorded during all NORM

and GAUG dives conducted.

History 1, information includes (Fig. 63):

> Graphic Hour with Total hours of EDT (dive time) ever

recorded (up to1999), 0 until > 1 hour

> Graphic HIS with Total number dives ever recorded (up to

999) with MAX and DIVE icons, 0 if no dive yet

Fig. 63 - HISTORY 1

• A (< 2 sec) to step forward to Serial Number.

• M (< 2 sec) to step back to Set M Lead-in.

• S (< 2 sec) to access History 2.

History 2, information includes (Fig. 64):

> Graphic SEA, or EL2 to EL7, highest Altitude at which a

dive was conducted

> Temperature with graphic F (or C), lowest recorded

> Max Depth ever reached (to 330 FT/100 M) with MAX

and FT (or M) icons

> Longest EDT (dive time) recorded during a single dive (up to

599 min) with DIVE and min icons

• S (< 2 sec) to revert to History 1.

Fig. 64 - HISTORY 2

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SERIAL NUMBER

Information displayed on this screen should be recorded and

kept with your sales receipt, it will be required in the event that

your GEO 2 requires factory service.

Serial Number, information includes (Fig. 65):

> Graphic r1A (or higher), indicating the revision level of the

ﬁrmware (GEO 2's operating software)

> Graphic SN with the factory programmed serial number

Fig. 65 - SERIAL NUMBER

• A (< 2 sec) - to step forward to Surface Main.

• M (< 2 sec) - to step back to History 1.

• L (press) - to activate Backlight.

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DIVE MODE FEATURES

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BAR GRAPHS

The GEO 2 features 2 speciﬁc bar graphs.

> The one on the left represents nitrogen loading. It is

referred to as the TLBG (Tissue Loading Bar Graph).

> The one on the right represents ascent rate. It is referred to

as the VARI (Variable Ascent Rate Indicator).

TLBG (NORM/FREE)

Fig. 66 - NO DECO

The TLBG represents your relative No Deco (Fig. 66a) or Deco

status (Fig. 67a). The ﬁrst 4 segments represent No Deco status

and the ﬁfth indicates a Deco condition.

As your Depth and Elapsed Dive Time increase segments add.

As you ascend segments recede, indicating that additional no

deco time is available.

The GEO 2 monitors 12 different nitrogen compartments simulta-

neously and the TLBG displays the one that is in control of your

dive at any given time.

Fig. 67 - DECO

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VARI (NORM/GAUG)

The VARI (Fig. 68a) provides a visual representation of ascent

speed (i.e., an ascent speedometer).

The segments represent two sets of speeds which change at a

reference depth of 60 FT (18 M). Refer to the chart.

When ascent is too fast, the audible will sound, and all VARI

segments and the graphic SLO will ﬂash (Fig. 69) until ascent is

slowed.

Fig. 68 - DIVE MAIN

(Ascent normal)

WARNING: When deeper than 60 FT (18 M), as-

cent rates should not exceed 60 FPM (18 MPM).

At depths of 60 FT (18 M) and shallower, ascent

rates should not exceed 30 FPM (9 MPM).

Deeper.than.60.FT.(18.M)

60.FT.(18.M).&.Shallower

VARI

Segments

Ascent Rate

FPM

VARI

Segments

Ascent Rate

FPM

MPM

0 - 20

0 - 6

0 - 10

0 - 3

21 - 30

31 - 40

41 - 50

51 - 60

60 +

6.1 - 9

9.1 - 12

12.1 - 15

15.1 - 18

18 +

11 - 15

16 - 20

21 - 25

26 - 30

30 +

3.1 - 4.5

4.6 - 6

6.1 - 7.5

7.6 - 9

9 +

Fig. 69 - DIVE MAIN

(Ascent Too Fast)

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ALGORITHM

The GEO 2 is conﬁgured with 2 algorithms which allows you to choose which set of NDLs

(No Deco Limits) will be used for nitrogen/oxygen calculations and displays relating to

Plan and DTR (Dive Time Remaining).

You can select to use either the DSAT or the PZ+. The selection will lock in for 24 hours

after the last dive.

DSAT has been the standard used by Oceanic in all of its dive computers until this

time. It features NDLs that are based on exposures and test data which also formed

validation for the PADI RDP. It imposes restrictions for repetitive Deco dives, consid-

ered more risky.

PZ+ (Pelagic Z+) performance is based on Buhlmann ZHL-16c. It features NDLs that

are considerably more conservative especially at shallower depths.

To create even greater margins of safety with respect to decompression, a Conservative

Factor as well as No Deco Deep and Safety Stops can be included for No Deco dives.

CONSERVATIVE FACTOR (CF)

When the CF is set On, the NDLs which are based on the algorithm selected and used for

Ni/O2 calculations and displays relating to Plan and DTR, will be reduced to the values

available at the altitude level that is 3,000 feet (915 meters) higher. Refer to the charts in

the back of this manual for times.

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DEEP STOP (DS), No Deco only

When the DS selection is set On, it will trigger during NORM No Deco dives when you

descend to 80 FT (24 M), then calculate (and continually update) a Stop Depth equal to

1/2 the Max Depth.

While 10 FT (3 M) deeper than the calculated DS, you will be able to access a DS Pre-

view screen that will display the current DS Stop Depth/Time.

Upon initial ascent to within 10 FT (3 M) below the calculated Stop Depth, a DS screen

displaying a Stop Depth at 1/2 the Max Depth will appear with a Countdown Timer

beginning at 2:00 (min:sec) and counting down to 0:00.

> If you descend 10 FT (3 M) below, or ascend 10 FT (3 M) above, the calculated Stop

Depth for 10 seconds during the countdown, the No Deco Main will replace the

DS Main display and the DS feature will be disabled for the remainder of that dive.

There is no Penalty if the DS is ignored.

> In the event that you enter Deco, exceed 190 FT (57 M), or a High O2 condition (=>

80%) occurs, the DS will be disabled for the remainder of that dive.

> The DS is disabled during a High PO2 Alarm condition (=> Set Point).

SAFETY STOP (SS), No Deco only

If set On:

Upon ascent to within 5 FT (1.5 M) deeper than the SS Depth set for 1 second on a No

Deco dive in which Depth exceeded 30 FT (9 M) for 1 second, a beep will sound and a

SS at the Depth set will appear on the Main display with a countdown beginning at the SS

Time set and counting down to 0:00 (min:sec).

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• If the SS was set for OFF or Timer, the display will not appear.

• In the event that you descend 10 FT (3 M) deeper than the Stop Depth for 10 seconds

during the countdown, or the countdown reaches 0:00, the No Deco Main screen

will replace the SS Main screen which will reappear upon ascent to within 5 FT (1.5

M) deeper than the Safety Stop Depth set for 1 second.

• In the event that you enter Deco during the dive, complete the Deco obligation, then

descend below 30 FT (9 M); the SS Main will appear again upon ascent to within 5

FT (1.5 M) deeper than the SS Depth set for 1 second.

• If you ascend 2 FT (0.6 M) shallower than the SS Depth for 10 seconds prior to

completing it, the SS will be canceled for the remainder of that dive.

• There is no Penalty if you surface prior to completing the SS or ignore it.

If set for Timer On:

Upon ascending to 20 FT (6 M) for 1 second on a No Deco dive in which Depth exceed-

ed 30 FT (9 M) for 1 second, 1 beep will sound and a Run Timer will appear (if set On)

displaying 0:00 (min:sec) until started.

• If the SS was set for Off or On, the Timer display will not appear.

• If you descend deeper than 30 FT (9 M) for 10 seconds, the No Deco Main will

replace the Timer screen which will reappear upon ascent to 20 FT (6 M) for 1

second.

• If you ascend above 10 FT (3 M) for 10 seconds, or enter Deco, or a High O2 alarm

condition occurs (100%), while the SS Timer is active, the SS Timer will be disabled

for the remainder of that dive.

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DTR (DIVE TIME REMAINING)

The GEO 2 constantly monitors No Deco status and O2 Ac-

cumulation, and will display whichever Time is the least amount

available as DTR on the No Deco Dive Main screen. The Time

being displayed will be identiﬁed by the NDC or O2 icon.

NDC (No Deco DTR)

NDC is the maximum amount of time that you can stay at your

present Depth before entering Deco. It is calculated based on

the amount of nitrogen absorbed by hypothetical tissue compart-

ments.

The rates each of these compartments absorb and release

nitrogen is mathematically modeled and compared against a

maximum allowable nitrogen level.

Whichever one is closest to this maximum level is the controlling

compartment for that Depth. Its resulting value (NDC) will be

displayed as DTR (Fig. 70a). It will also be displayed graphi-

cally as the TLBG (Fig. 70b).

As you ascend, the TLBG segments will recede as control shifts

to slower compartments. This is a feature of the decompression

model that is the basis for multilevel diving, one of the most

important advantages that Oceanic dive computers offer.

Fig. 70 - NO DECO MAIN

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OTR (O2 DTR)

When set for Nitrox operation, O2 during a dive is displayed

on an ALT screen as a % of allowed saturation (Fig. 71a) identi-

ﬁed by the O2SAT icons.

The limit for O2 exposure (100%) is set at 300 OTU (oxygen

tolerance units) per dive or 24 hour period. As time before

reaching the limit decreases, % O2 increases and OTR (O2

DTR) decreases.

Fig. 71 - NO DECO ALT 1

When OTR becomes less than the NDC, calculations for the dive

will be controlled by O2 and OTR will be displayed as DTR on

the Main (Fig. 72a), identiﬁed by the O2 and min icons.

OXYGEN EXPOSURE LIMITS

(from NOAA Diving Manual)

Max Duration

Single Exposure

(min) (hr)

Max Total Duration

24 Hour Day

PO2

(ATA)

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

1.50

1.60

(min)

720

570

450

360

300

270

240

210

180

150

(hr)

12.0

9.5

7.5

6.0

5.0

4.5

4.0

3.5

3.0

2.0

720 12.0

570

450

360

300

240

210

180

150

120

9.5

7.5

6.0

5.0

4.0

3.5

3.0

2.5

2.0

.75

Fig. 72 - NO DECO MAIN

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NORM DIVE MODES

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NO DECO DIVE MAIN, information includes (Fig. 73) -

> Current Depth with FT (or M) icon

> DTR (min) with NDC (or O2) and min icons

> Max Depth with MAX and FT (or M) icons

> EDT (Elapsed Dive Time) with DIVE and min icons

> TLBG with icon

> VARI while ascending

> NX, (PZ+), CF, Gas, DS icons - those that apply

Fig. 73 - NO DECO MAIN

• A (< 2 sec) - to access ALTs.

• A (2 sec) - to access Deep Stop Preview, if triggered.

• M (2 sec) - to access Gas Switching.

• S (< 2 sec) - to acknowledge alarms.

• L (press) - to activate Backlight.

Upon ascending to 2 FT (0.6 M) during a dive, Surface Interval

time will be displayed with the SURF icon ﬂashing for the ﬁrst 10

minutes and NDC will be displayed as 2 dashes (Fig. 74).

• A (< 2 sec) - to access Dive ALTs.

• M (2 sec) - to access Gas Switching.

• L (press) - to activate Backlight.

>> After 10 minutes elapse, operation will revert to Surface Mode and full access

given to the NORM Surface Menu items.

>> If a descent is made to 5 FT (1.5 M) for 5 seconds, the dive will be continued.

Surface time will not be added to Dive Time.

Fig. 74 - NO DECO MAIN

(during < 10 min on surface)

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No Deco Alt 1, information includes (Fig. 75) -

> Time of Day (hr:min), with AM (or PM) icon if 12 Hour

Format, no icon if 24 Hour Format

> Temperature with ° icon and graphic F (or C)

• A (< 2 sec) - to access ALT 2 (if Nitrox).

• Revert to Main in 5 sec, if A not pressed.

• L (press) - to activate Backlight.

Fig. 75 - NO DECO ALT 1

Fig. 76 - NO DECO ALT 2

Fig. 77 - DS PREVIEW

No Deco Alt 2 (only if Nitrox), information includes (Fig. 76) -

> NX icon

> % O2 with O2SAT icons

> Current PO2 value (ATA) with PO2 icon

> FO2 Set Point for Gas in use with FO2 icon

> Gas (tank) icon, gas in use (1 or 2)

• 5 sec or A (< 2 sec) - to revert to Main.

• L (press) - to activate Backlight.

Deep Stop Preview, information includes (Fig. 77) -

> same as Main except Max Depth and EDT replaced by -

> Stop Depth with FT (or M) icon, DS icon, and Stop Time as

2:00 with min and sec icons

• Revert to Main after 5 sec or A (< 2 sec).

• L (press) - to activate Backlight.

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DEEP STOP MAIN, information includes (Fig. 78) -

> Current Depth with FT (or M) icon

> DTR (min) with NDC (or O2) and min icons

> Stop Depth with FT (or M) icon

> Stop icon (arrows/bar) and DS icon

> Stop Time with min and sec icons, counting down

> TLBG with icon

> NX, (PZ+), CF, Gas icons - those that apply

Fig. 78 - DS MAIN

• A (< 2 sec) - to access ALTs**.

• M (2 sec) - to access Gas Switching.

• S (< 2 sec) - to acknowledge alarms.

• L (press) - to activate Backlight.

** DS features up to 3 ALT displays which are similar to the No Deco Main, ALT1,

and ALT2 displays, respectively.

SAFETY STOP MAIN (On), information includes (Fig. 79) -

> Current Depth with FT (or M) icon

> DTR (min) with NDC (or O2) and min icons

> Stop Depth set with FT (or M) icon

> Stop icon (arrows/bar)

> Stop Time set with min and sec icons, counting down

> TLBG with icon

> NX, (PZ+), CF, Gas icons - those that apply

Fig. 79 - SS MAIN

(On - Depth/Time set)

• A (< 2 sec) - to access ALTs**.

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• M (2 sec) - to access Gas Switching.

• S (< 2 sec) - to acknowledge alarms.

• L (press) - to activate Backlight.

When the SS is set for Timer, the graphic TMR with Run Time

counting up from 0:00 to 9:59 (min:sec) then 10 to 999 (min)

will be displayed (Fig. 80) instead of a set Stop Depth/Time.

• A (< 2 sec) - to access Dive ALTs**.

• M (2 sec) - to access Gas Switching.

• S (< 2 sec)* - to acknowledge alarms.

• S (< 2 sec)* - to start/stop Timer.

Fig. 80 - SS MAIN

(set for Run Timer)

• S (2 sec)*, when Timer is stopped - to reset it to 0:00.

** SS features up to 3 ALT displays which are similar to the No Deco Main, ALT1,

and ALT2 displays, respectively.

* Timer operation is blocked when S is pressed to silence alarms.

DECOMPRESSION

Decompression mode activates when theoretical No Decompres-

sion time and depth limits are exceeded.

Upon entry into Deco, the audible will sound and the alarm LED

will ﬂash. The full TLBG and Up Arrow icon will ﬂash (Fig. 81)

until the audible is silenced.

Fig. 81 - DECO ENTRY

(during audible)

• S (< 2 sec) - to silence Audible.

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> Once within 10 FT (3 M) below the required Stop Depth (stop zone), the full Stop

icon (both Arrows with Stop Bar) will be displayed solid.

To fulﬁll your decompression obligation, you should make a safe controlled Ascent to a

depth slightly deeper than, or equal to, the required Stop Depth indicated and decompress

for the Stop Time indicated.

The amount of decompression credit time that you receive is dependent on Depth, with

slightly less credit given the deeper you are below the Stop Depth indicated.

You should stay slightly deeper than the required Stop Depth indicated until the next shal-

lower Stop Depth appears. Then, you can slowly ascend to, but not shallower than that

indicated Stop Depth.

*TAT includes Stop Times at

DECO STOP MAIN, information includes (Fig. 82) -

all required Deco Stops plus

vertical Ascent Time based

on the max rate allowed.

> Current Depth with FT (or M) icon

> TAT (Total Ascent Time)* with TAT and min icons

> Stop Depth with FT (or M) icon

> Stop icon (arrows/bar)

> Stop Time with min icon

> Full TLBG with icon

> NX, (PZ+), CF, Gas icons - those that apply

• A (< 2 sec) - to access ALTs.

• M (2 sec) - to access Gas Switching.

• S (< 2 sec) - to acknowledge alarms.

Fig. 82 - DECO STOP MAIN

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Deco Stop Alt 1, information includes (Fig. 83) -

> Current Depth with FT (or M) icon

> TAT (min) with TAT and min icons

> Max Depth with MAX and FT (or M) icons

> EDT (Elapsed Dive Time) with DIVE and min icons

> Full TLBG with icon

> NX, (PZ+), CF, Gas icons - those that apply

• A (< 2 sec) - to access ALT 2.

• Revert to Main in 5 sec, if A not pressed.

Fig. 83 - DECO STOP ALT 1

Deco Stop Alt 2, information includes (Fig. 84) -

> Time of Day (hr:min)

> Temperature with ° icon and graphic F (or C)

• A (< 2 sec) - to access ALT 2 (if Nitrox).

• Revert to Main in 5 sec, if A not pressed.

Fig. 84 - DECO STOP ALT 2

Deco Stop Alt 3 (if Nitrox), information includes (Fig. 85) -

> NX icon

> Gas 1 (or 2) icon, gas in use

> % O2 with O2SAT icons

> Current PO2 value (ATA) with PO2 icon

> FO2 Set Point for Gas in use with FO2 icon

• 5 sec or A (< 2 sec) - to revert to Main.

Fig. 85 - DECO STOP ALT 3

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CV (CONDITIONAL VIOLATION)

Upon ascent above the required Deco Stop Depth, operation will

enter CV during which no off gassing credit will be given.

The Audible will sound and the alarm LED will ﬂash. The full

TLBG and Down Arrow icon will ﬂash (Fig. 86) until the audible

is silenced, then the TLBG will be solid.

• S (< 2 sec) - to silence audible.

> Down Arrow icon continues to ﬂash until descent to below

required Stop Depth (within stop zone), then full Stop icon

(Stop Bar with both Arrows) will be on solid.

ALTs are similar to

those for Deco.

If you descend deeper than the required Deco Stop before 5

minutes elapse, Deco operation will continue with no off gassing

credit given for time above the Stop. Instead, for each minute

above the Stop 1-1/2 minutes of penalty time will be added to

required Stop Time.

> The added penalty (deco) time will have to be worked off

before obtaining off gassing credit.

> Once the penalty time is worked off, and off gassing credit

begins, required Deco Stop Depths and Time will decrease

toward zero. The TLBG will recede into the No Deco zone

and operation will revert to No Deco mode.

Fig. 86 - CV MAIN

(after Audible)

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DV 1 (DELAYED VIOLATION 1)

If you remain shallower than a Deco Stop Depth for more than

5 minutes, operation will enter DV1* which is a continuation of

CV with penalty time still being added. Again, the audible will

sound and the full TLBG will ﬂash (Fig. 87) until it is silenced.

*The difference is that 5 minutes after surfacing from the dive,

operation will now enter Violation Gauge Mode.

Fig. 87 - DV1 MAIN

(during Audible)

• S (< 2 sec) - to silence audible.

> Down Arrow icon continues to ﬂash until descent to below

required Stop Depth, then full Stop icon will be on solid.

DV 2 (DELAYED VIOLATION 2)

If the calculated Deco obligation requires a Stop Depth between

60 FT (18 M) and 70 FT (21 M), operation will enter DV2.

The Audible will sound and the alarm LED will ﬂash. The full

TLBG will ﬂash (Fig. 88) until the audible is silenced.

• S (< 2 sec) - to silence audible.

> Up Arrow icon ﬂashes if 10 FT (3 M) deeper than the

required Stop Depth.

> Once within 10 FT (3 M) of and below the required Stop

Depth, the Stop icon (both Arrows with Stop Bar) will be

displayed solid.

Fig. 88 - DV2 MAIN

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DV 3 (DELAYED VIOLATION 3)

If you descend deeper than the MOD*, the audible will sound

and the alarm LED will ﬂash. Also, the Up Arrow will ﬂash, and

Current Depth and Max Depth will only indicate 3 dashes ( - - - )

signifying that you are Too Deep (Fig. 89).

*MOD is the Max Operating Depth at which the VEO can properly

perform calculations or provide accurate display information. Refer to the

Speciﬁcations in the back.

Fig. 89 - DV 3 MAIN

Upon ascending above the MOD, Current Depth will be re-

stored, however, Max Depth will continue to be displayed as

dashes for the remainder of that dive. The Log for that dive will

also display dashes for Max Depth.

VGM (VIOLATION GAUGE MODE)

During NORM dives, operation will enter VGM when Deco requires a Stop Depth greater

than 70 FT (21 M). It will also enter VGM if Deco is activated during a dive in FREE

mode, described later.

Operation would then continue in VGM during the remainder of that dive and for 24

hours after surfacing. VGM turns the VEO into a digital instrument without any decom-

pression or oxygen related calculations or displays.

Upon activation of VGM, the Audible will sound and the alarm LED will ﬂash. The graphic

VIO and Up Arrow icon will ﬂash.

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VGM Dive Main, information includes (Fig. 90) -

> Current Depth with FT (or M) icon

> Graphic VIO (in place of Max Depth which moves to Alt 1)

with Up Arrow icon, ﬂashing until on surface

> EDT with DIVE and min icons

> NX, Gas icons - if they apply

> VARI while ascending

• A (< 2 sec) - to access ALTs (similar to those for Deco).

• S (< 2 sec) - to acknowledge alarm.

• M (2 sec) - to access Gas Switching.

Fig. 90 - VGM MAIN

(after Audible)

VGM on Surface

Upon surfacing, the VGM Dive Main will remain on display for

10 minutes with Surface Interval Time displayed in place of Cur-

rent Depth with the SURF icon ﬂashing. The graphic VIO will

also still be displayed ﬂashing.

alt w/

NOR

Operation will also enter VGM 5 minutes after surfacing from a

dive in which a Delayed Violation occurred.

After 10 minutes elapse, VIO alternates with NOR (Fig. 91) until

24 hours elapse with no dives. Watch functions are as normal.

> A full 24 hour continuous surface interval must then be

served before all dive computer functions are restored.

Fig. 91 - VGM SURF MAIN

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> During that 24 hours, VGM does not allow access to the

Set F, Plan, Dsat, and FREE Mode features/screens.

> The Fly countdown indicates time remaining before normal

operation can resume with full features and functions.

HIGH PO2 (NORM ONLY)

Warning >> at Alarm Set Point value minus .20 (1.00 to 1.40).

Alarm >> at Set Point value, except in Deco then at 1.60 only.

When PO2 (partial pressure of oxygen) increases to the Warn-

ing level; the audible sounds, the Up Arrow icon will ﬂash, and

the PO2 value will ﬂash (in place of max Depth) until the audible

is silenced (Fig. 92).

• S (< 2 sec) - to acknowledge alarm.

> When the audible is silenced, Max Depth is restored.

The Up Arrow remains on solid until PO2 decreases below the

Warning level.

If PO2 continues to increase and reaches the Alarm Set Point,

the audible sounds again.

• S (< 2 sec) - to acknowledge alarms

> The PO2 value and Up Arrow icon will ﬂash until PO2

decreases below the Alarm Set Point.

Fig. 92 - PO2 WARNING

(during audible)

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PO2 Alarm Main, information includes (Fig. 93) -

> NX icon

> Current Depth with FT (or M) icon

> DTR with NDC (or O2) and min icons

> PO2 value (ATA) with PO2 icon, ﬂashing until < Set Point,

then solid

> Up Arrow icon, ﬂashing until < Set Point, then solid

> TLBG with icon

> VARI while ascending

> (PZ+), CF, Gas icons - those that apply

Fig. 93 - PO2 ALARM MAIN

• A (< 2 sec) - to access ALTs (similar to those for No Deco).

• M (2 sec) - to access Gas Switching.

• L (press) - to activate Backlight.

alt w/ Stop

Depth/Time

High PO2 during Deco (Fig. 94)

The PO2 alarm setting does not apply when in Deco.

> If PO2 reaches 1.60 while at a Deco Stop, the PO2 value

(1.60) with icon will alternate with Deco Stop Depth/Time

once each minute*.

*PO2 on for 10 seconds, Deco Stop Depth/Time on for 50 seconds

until PO2 decreases below 1.60, then PO2 will not be displayed.

Fig. 94 - PO2 ALARM

(while in Deco)

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HIGH O2 (NORM only)

Warning >> at 80 to 99% (240 OTU).

Alarm >> at 100% (300 OTU).

When O2 reaches the Warning Level; the audible sounds and

the O2 value will ﬂash (in place of DTR), Fig. 95, until the

audible is silenced, then DTR will be restored.

• S (< 2 sec) - to acknowledge alarm.

Fig. 95 - O2 WARNING

(during audible)

If O2 reaches the Alarm level; the audible sounds and the Up

Arrow icon and the O2 value will ﬂash (in place of DTR) until on

the surface (Fig. 96).

• S (< 2 sec) - to acknowledge alarm.

• A (< 2 sec) - to access ALTs (similar to those for No Deco).

• M (< 2 sec) - to access Gas Switching.

• L (press) - to activate Backlight.

High O2 during Deco

When O2 reaches the Warning Level; the audible sounds and

the O2 value will ﬂash (in place of TAT) until the audible is

silenced, then TAT will be restored.

• S (< 2 sec) - to acknowledge alarm.

Fig. 96 - O2 ALARM

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If O2 reaches the Alarm level; the audible sounds and the Up

Arrow icon and the O2 value will ﬂash (in place of TAT) until on

the surface. Max Depth and EDT will be displayed in place of

Deco Stop Depth/Time, Fig. 97.

• S (< 2 sec) - to acknowledge alarm.

• A (< 2 sec) - to access ALTs (similar to those for No Deco).

• M (< 2 sec) - to access Gas Switching.

• L (< 2 sec) - to activate Backlight.

Fig. 97 - O2 ALARM

(during Deco)

High O2 on Surface

Upon ascent to 2 FT (0.6 M) for 1 second (surfacing), the Dive

Main screen is displayed for 10 minutes with access to the Dive

ALTs allowed.

• If O2 is 100%, the value will ﬂash on the Main until it is <

100%, then it will be replaced with dashes (if Violation)

until 10 minutes elapse, then Time of Day.

• If you surface due to 100% O2 without having completed

the Deco obligation, the full TLBG and O2 value (100)

will ﬂash with O2SAT icons for the ﬁrst 10 minutes, then

operation will enter VGM.

• Access to Dive ALTs and Gas Switching is allowed during

the ﬁrst 10 minutes, then access to the NORM Surface

Menu is allowed.

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GAS SWITCHING

> Switching changes FO2 related displays and calculations

from one Gas (FO2) setting to another.

> Dives begin with Gas 1 and default to Gas 1 after 10

minutes on the surface following dives.

> Switching is blocked while on the surface, except during

the ﬁrst 10 minutes after surfacing from a dive.

> Can Switch when Dive Main screens are displayed.

> Switching is blocked during sounding of alarms.

> Can Switch between Gas regardless of depth.

Fig. 98 - GAS 1 SWITCH

PREVIEW

To Switch Gas, while viewing a NORM Dive Main:

• M (2 sec) - to access Gas (in use) Preview (Fig. 98).

• M (2 sec)* again - to access other Gas' Preview (similar).

• S (2 sec)* - to Switch to other Gas, after a 3 second delay.

*Operation reverts to the Main in 10 seconds if M or S is not pressed.

Gas Switch Alarm

If the Switch to a Gas would result in PO2 => 1.60, the audible

will sound and a warning message will ﬂash (Fig. 99) until it is

silenced, then the Preview screen will be restored.

Due to the possibility that there may be insufﬁcient air available in the

tank associated with that Gas, the switch is still allowed.

If the switch is made, the PO2 alarm will strike. If in Deco, the Up

Arrow icon will not ﬂash (you control action to be taken).

Fig. 99 - GAS SWITCH

ALARM (all ﬂash)

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DIGITAL GAUGE MODE

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GAUG SURF MAIN, information includes (Fig. 100):

> SI (hr:min) with SURF icon; if no dive yet, this is time since

activation

> Time of Day (hr:min) with AM (or PM) icon if 12 Hour

Format; no icon if 24 Hour Format

> Graphic GAU

> Dive number with DIVE icon, up to 24 for that operating

period (0 if no dive made yet)

> Battery icon, if voltage is low

Fig. 100 - GAUG SURF MAIN

(no dive yet)

• A (< 2 sec) - to access ALT 1.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to access SN.

• L (press) - to activate Backlight.

Upon surfacing during dives, the Dive Main will remain on

display for the ﬁrst 10 minutes (with SI in place of Depth) after

which the Surface Main will be displayed

GAUG SURF ALT 1, information includes (Fig. 101):

> SI (hr:min) with SURF icon, prior to Last dive

> Graphic LAST, indicating data is for dive previously

conducted while still in GAUG mode

> Max Depth of dive previously conducted while still in

GAUG mode with MAX and FT (or M) icons

> EDT (up to 999 min) with DIVE and min icons

Fig. 101 - GAUG SURF ALT 1

(Last Dive's Data)

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• A (< 2 sec) - to access ALT 2.

• M (< 2 sec) - to step back to Main.

• L (press) - to activate Backlight.

GAUG SURF ALT 2, information includes (Fig.88):

> Temperature with ° icon and graphic F (or C)

> Altitude graphic, if EL2 (to EL7), blank if Sea level

• A (< 2 sec) - to access Fly.

Fig. 102 - GAUG SURF ALT 2

• M (< 2 sec) - to step back to ALT 1.

• L (press) - to activate Backlight.

GAUG SURF MENU

GAUG.SURF.MENU

MAIN

In addition to the Main and ALT screens, the Gauge Surface

Menu provides access to most other selections that are similar to

those described previously for NORM Mode*.

ALT.1

ALT.2

*Refer to pages 40 through 61 for descriptions of those menu items.

Button operations are also similar to those in NORM.

FLY

LOG

SET.A

• A (< 2 sec) >> step forward through Menu items.

• A (hold) >> scroll forward through Menu items.

• M (< 2 sec) >> step back through Menu items.

• L (press) >> activate the SmartGlo Backlight.

SET.U

SET.M

HISTORY

• M (2 sec) or 2 min (of no button action) >> revert to Main.

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Upon descent to 5 FT (1.5 M) for 5 seconds,

operation will enter Gauge Dive Mode.

GAUG DIVE MAIN, information includes (Fig. 103A, B) -

> Current Depth with FT (or M) icon

> Max Depth with MAX and FT (or M) icons; or graphic TMR

> EDT (Elapsed Dive Time) with DIVE and min icons; or Run

Time (min:sec to 9:59, then min only up to 999) with icons

> VARI while ascending

Fig. 103A - GAUG DIVE MAIN

(without Run Timer)

• A (< 2 sec) - to access ALTs.

• A (2 sec) - to add/remove Run Timer*

• S (< 2 sec) - to start/stop Run Timer* or acknowledge

alarms.

• L (press) - to activate Backlight.

* Once the Run Timer is added to the Main and started, it can be re-

moved from the Main and will continue running in the background

until it is again added to the Main. It can only be started and

stopped while it is displayed on the Main.

Fig. 103B - GAUG DIVE MAIN

(with Run Timer)

Upon ascending to 2 FT (0.6 M) during a dive, Surface Interval

time will be displayed with the SURF icon ﬂashing for the ﬁrst 10

minutes (Fig. 104).

After 10 minutes elapse, operation will revert to Surface Mode

and full access given to the GAUG Surface Menu items.

Fig. 104 - GAUG DIVE MAIN

(during < 10 min on surface)

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If a descent is made to 5 FT (1.5 M) for 5 seconds, the dive will

be continued. Surface time will not be added to Dive Time.

Once a dive is completed in Gauge Mode,

operation will lock into Gauge Mode for 24 hours.

GAUG DIVE ALT 1, information includes (Fig. 105) -

This screen is bypassed if Max Depth is on the Main.

Fig. 105 - GAUG DIVE ALT 1

(if Timer is on Main)

> Current Depth with FT (or M) icon

> Max Depth with MAX and FT (or M) icons

> EDT (Elapsed Dive Time) with DIVE and min icons

> VARI while ascending

• A (< 2 sec) - to access ALT 2.

• L (press) - to activate Backlight.

GAUG DIVE ALT 2, information includes (Fig. 106) -

This screen is ALT 1 if Max Depth is on the Main.

> Time of Day (hr:min), with AM (or PM) icon if 12 Hour

> Temperature with ° icon and graphic F (or C)

• 5 sec or A (< 2 sec), revert to Main.

Fig. 106 - GAUG DIVE ALT 2

(ALT 1 if no Timer on Main)

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DV 3 (DELAYED VIOLATION 3)

Upon descent deeper than the MOD**, the audible will sound

and the alarm LED will ﬂash. Also, the Up Arrow will ﬂash, and

Current Depth and Max Depth will only indicate 3 dashes ( - - - )

signifying that you are too deep (Fig. 107).

**MOD is Max Operating Depth. Refer to the Speciﬁcations in the

back.

Fig. 107 - GAUG DIVE DV 3

Upon ascending above the MOD, Current Depth will be re-

stored. Max Depth will display 3 dashes for the remainder of

that dive and will be recorded in the Log.

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FREE DIVE MODE

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FREE SURF MAIN, information includes (Fig. 108):

> Surface Interval time (min:sec up to 59:59, then hr:min)

with SURF icon; if no dive yet, this is time since activation

> Time of Day (hr:min) with AM (or PM) icon

> Graphic FRE

> Dive number with DIVE icon, up to 99 for that operating

period (0 if no dive made yet)

> (PZ+), CF, Battery icons - if they apply

> TLBG with icon, if any after a NORM or FREE dive

Fig. 108 - FREE SURF MAIN

(no dive yet)

• A (< 2 sec) - to access ALT 1.

• A (hold) - to scroll forward through Menu items.

• M (< 2 sec) - to access Set M Lead-in.

• L (press) - to activate Backlight.

pre dive SI

(min:sec)

Upon surfacing during dives, the Dive Main will remain on dis-

play for the ﬁrst 1 minute (with SI in place of Depth) after which

the Surface Main will be displayed.

FREE SURF ALT 1, information includes (Fig. 109):

> SI (min:sec or hr:min) with SURF icon, prior to Last dive

> Graphic LAST, indicating data is for dive previously

conducted while still in FREE mode

> Max Depth of dive previously conducted while still in FREE

mode with MAX and FT (or M) icons

> EDT (min:sec or hr:min) with DIVE and min/sec icons

Fig. 109 - FREE SURF ALT 1

(Last Dive Data)

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• A (< 2 sec) - to access ALT 2.

• M (< 2 sec) - to step back to Main.

• L (press) - to activate Backlight.

FREE SURF ALT 2, information includes (Fig. 110):

> Temperature with ° icon and graphic F (or C)

> Altitude graphic, if EL2 (to EL7), blank if Sea level

• A (< 2 sec) - to access CDT Lead-in.

• M (< 2 sec) - to step back to ALT 1.

• L (press) - to activate Backlight.

Fig. 110 - FREE SURF ALT 2

FREE SURF MENU

Button operations. -

• A (< 2 sec) >> step forward through Menu items.

• A (hold) >> scroll forward through Menu items.

• M (< 2 sec) >> step back through Menu items.

• S (press) >> activate the SmartGlo Backlight.

• M (2 sec) or 2 min (of no button action) >> revert to Main.

FREE.SURF.MENU

MAIN

ALT.1

CDT (Countdown Timer)

ALT.2

While on the surface, the CDT can be set, started, and stopped.

Once set and started, it continues to run in the background when

a dive is started and becomes available as an ALT display.

CDT

SET.FA

SET.M

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CDT Lead-in, information includes (Fig. 111):

> Graphics Cdt and FRE

• A (< 2 sec) - to step forward to Set FA Lead-in.

• M (< 2 sec) - to step back to ALT 2.

• S (< 2 sec) - to access CDT Status.

CDT Status, information includes (Fig. 112):

> Countdown Time (min:sec) remaining or set/ready to start,

0:00 if complete

Fig. 111 - CDT LEAD-IN

> Graphics CDT - with OFF (or ON) ﬂashing

• A (< 2 sec) - to step up through OFF, ON, SEt (Fig. 113).

• M (< 2 sec) - to step back through OFF, ON, SEt.

• S (< 2 sec) - to save the setting.

>> If On is saved and a CDT was set, the CDT will start

counting down and operation will revert to the Lead-in.

>> If Off is saved, the Timer will stop counting down and

operation will revert to the Lead-in.

>> If Set is saved, the Set CDT screen will be displayed.

• S (2 sec) - to revert to CDT Lead-in.

The CDT will run in the background, while on the surface and

during dives, until it counts down to 0:00, or it is turned OFF.

Fig. 112 - CDT STATUS

(On, running)

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When a set Countdown Time reaches 0:00, the audible will

sound during which time the graphic CDT will be displayed

ﬂashing on the Surface or Dive Main until the audible is silent.

Set CDT, information includes (Fig. 113):

> Graphics SEt and CDT

> CDT (min:sec) with Minute digits ﬂashing

> min and sec icons

Fig. 113 - CDT STATUS

(to access Set)

• A (hold) - to scroll upward through Minute Set Points at a

rate of 8 per second from 0: to 59: in increments of 1:

(min).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the Minute Set Point and ﬂash the

Seconds digits.

• A (hold) - to scroll upward through Seconds Set Points at a

rate of 8 per second from :00 to :59 in increments of :01

(sec).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the CDT Set Point and revert to the CDT

Status screen with OFF ﬂashing.

Fig. 114 - SET CDT

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SET FA MENU (FREE ALARMS)

Sequence >> Lead-in >> EDT >> DA1 >> DA2 >> DA3

Set Points remain as set until changed.

Set FA Lead-in, information includes (Fig. 115):

> Graphics SEt and FA

• A (< 2 sec) - to step forward to Set M Lead-in.

• M (< 2 sec) - to step back to CDT Lead-in.

• S (< 2 sec) - to access Set EDT Alarm.

Fig. 115 - SET FA LEAD-IN

EDT ALARM

Factory set for a ﬁxed 30 seconds, the EDT (Elapsed Dive Time)

alarm sounds the audible every 30 seconds while underwater in

FREE Dive Mode.

Set EDT Alarm, information includes (Fig. 116):

> Graphics SEt and EDT -

> OFF (or ON) ﬂashing

• A (< 2 sec) - to toggle between ON and OFF.

• S (< 2 sec) - to save the setting and access Set DA1.

• S (2 sec) - to revert to Set FA Lead-in.

Fig. 116 - SET EDT ALARM

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DA (DEPTH ALARMS)

There are 3 Free Depth Alarms (DAs) that can be set at progres-

sively deeper depths*.

*The DA2 setting must be deeper than DA1 and DA3 must be

deeper than DA2.

Set DA1 Alarm, information includes (Fig. 117A, B):

> Graphics SEt and - dA1

> Graphic OFF, or Depth value with MAX and FT (or M)

icons, ﬂashing

Fig. 117A - SET DA1

• A (hold) - to scroll upward through Set Points at a rate of

8 per second from OFF to 30 to 330 FT (10 to 100 M) in

increments of 10 FT (1 M).

• A (< 2 sec) - to step upward through Set Points one at a

time.

• M (< 2 sec) - to step back through Set Points one at a time.

• S (< 2 sec) - to save the setting.

> If OFF is saved, operation reverts to Set FA Lead-in.

> If a Depth value is saved, Set DA 2 is accessed.

• S (2 sec) - to revert to Set EDT Alarm.

Set DA 2 and DA 3 are similar with Depth values beginning 1

increment higher (deeper) than the previous selection set. If DA

1 is set for 100 FT, DA 2 settings start at 110 FT.

Fig. 117B - SET DA1

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SET M (DIVE MODE)

Set M and selecting a Dive Operating Mode (Fig. 118) is similar

to that previously described for NORM. Refer to page 59.

SHARED SETTINGS

To change items that FREE Mode shares with NORM Mode,

access the NORM Menu, then Set U, then -

> Wet Activation

> Units

> Algorithm

Fig. 118 - SET M

> Conservative Factor

> Glo Duration

Upon descent to 5 FT (1.5 M) for 5 seconds,

operation will enter Free Dive Mode.

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100

FREE DIVE MAIN, information includes (Fig. 119) -

> Current Depth with FT (or M) icon

> DTR (min) with NDC and min icons

> Temperature with ° icon anf graphic F (or C)

> EDT (min:sec) with DIVE and min sec icons

> TLBG with icon

> (PZ+), CF icons - those that apply

• A (< 2 sec) - to access ALTs.

• L (press) - to activate Backlight.

Fig. 119 - FREE DIVE MAIN

Upon ascending to 2 FT (0.6 M) during a dive, Surface Interval

time will be displayed with the SURF icon ﬂashing for the ﬁrst 1

minute and NDC will be displayed as 2 dashes (Fig. 120).

• A (< 2 sec) - to access Dive ALTs.

• L (press) - to activate Backlight.

After 1 minute elapses, operation will revert to Surface Mode

and full access given to the FREE Surface Menu items.

If a descent is made to 5 FT (1.5 M) for 5 seconds, the dive

will be continued. Surface time will not be added to Dive

Time.

Fig. 120 - FREE DIVE MAIN

(during < 1 min on surface)

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101

FREE DIVE ALT 1, information includes (Fig. 121) -

> Remaining Countdown Time (min:sec) if On and a CD is in

progress or 0:00 if On and the CD is complete, with colon

ﬂashing. If Off, the CD Time previously set is displayed

with colon solid indicating it is ready to start.

> Graphics CDT - , and OFF (or ON) ﬂashing

• S (< 2 sec) - to toggle between ON and OFF*.

*Start or Stop the countdown and revert to Main.

Fig. 121 - FREE DIVE ALT 1

• A (< 2 sec) - to access ALT 2.

• Revert to Main in 10 sec, if S or A is not pressed.

• L (press) - to activate Backlight.

When On, the CDT will run in the background until it counts

down to 0:00, or it is turned Off.

FREE DIVE ALT 2, information includes (Fig. 122) -

> Time of Day (hr:min), with AM (or PM) icon if 12 Hour

> TMax Depth with MAX and FT (or M) icons

• 5 sec or A (< 2 sec), revert to Main.

• L (press) - to activate Backlight.

Fig. 122 - FREE DIVE ALT 2

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102

FREE DIVE ALARMS

FREE mode alarms, which are separate from NORM (or GAUG)

alarms, sound either 1 or 3 times as 3 beeps then clear.

They cannot be acknowledged or silenced.

FREE CDT Alarm

When a set Countdown Time reaches 0:00, the audible will

sound during which time the graphic CDT will ﬂash on the Main

in place of Temperature (Fig. 123).

Fig. 123 - CDT AL

FREE EDT Alarm

When set On, the EDT alarm activates every 30 seconds during

a dive. The audible will sound during which time the graphic

EDT (in place of Temperature) and time digits will ﬂash on the

Main (Fig. 124).

Fig. 124 - EDT AL

FREE Depth Alarms

When set On, the Depth alarms (1, 2, 3) activate at their respec-

tive set Depths. The audible will sound during which time the

Depth digits, and graphic DA1 (2, 3) will ﬂash on the Main in

place of Temperature (Fig. 125).

Fig. 125 - DEPTH AL

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103

High Nitrogen Alarms

When nitrogen increases to the caution level (4 TLBG segments),

the audible will sound during which time the TLBG segments will

ﬂash on the Main (Fig. 126).

In the event that nitrogen continues to increase and reaches the

Deco level, the audible will sound again during which time all

5 TLBG segments, the Up Arrow icon, and the graphic VIO (in

place of Temperature), will ﬂash, and NDC will display 0.

Fig. 126 - FREE TLBG AL

(during audible)

When the audible is silent, the TLBG and NDC digits are re-

moved. The graphic VIO and Up Arrow icon ﬂash (Fig. 127)

until on the surface, then the Up Arrow is removed.

The graphic VIO ﬂashes until 1 minute elapses on the surface,

then it alternates with FRE (Fig. 128) and operation reverts to

Violation Gauge Mode for 24 hours.

Fig. 127 - FREE VIOLATION

(after audible)

alt w/

FRE

min:sec

Fig. 128 - FREE VIOLATION

(after 1 min on surface)

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104

REFERENCE

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105

PC INTERFACE

The GEO 2 is conﬁgured with a Data Port (Fig. 111a) that

enables it to be connected to a PC USB port using a special

interface cable that is available as an optional accessory.

The USB Driver required for the interface system is download-

able from the Oceanic Worldwide web site.

The Settings Upload portion of the program can be used to

set/change the Set T group (Watch Time/Date), Set A group

(Alarms), Set U group (Utilities), and Set FA group (FREE Alarms).

The FO2 and Operating Mode settings must be entered using

the button controls.

Information available for retrieval* (download) from the GEO 2

to the PC Download portion of the program includes items such

as dive number, surface interval time, depth, dive time, start

date and time, lowest temperature, sampling rate, Set Points,

TLBG, VARI, and Gas Switching events.

*FREE Dive information is only available using the PC interface system.

The unit checks for the presence of an interface device connec-

tion to the Data Port once every second* while in Watch mode.

*Checks are not made if the Wet Activation contacts are wet.

Fig. 129 - DATA PORT

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106

Upon sensing an interface connection, the requesting device

(PC) connects to the GEO 2 and is prepared for upload of

settings or download of data which is then initiated using the

PC program. During the process, there is a 2 minute window

during which a PC countdown screen is displayed on the GEO

2 (Fig. 130). Upload or download must be started during this

time.

Prior to attempting to download data from your GEO 2 or

upload settings to it, review the HELP section of the interface

program. Recommended is to print those sections of HELP that

you consider appropriate for your interface activities.

Fig. 130 - PC INTERFACE

PC requirements:

•

IBM , or compatible, Personal Computer with USB Port

Intel^®_®Pentium 200 MHz or better microprocessor

Microsoft_®Windows_®98 Second Edition, ME, NT, 2000, XP, or Vista

Super VGA card or compatible video graphics adaptor (256 color or greater) with a minimum 800

X 600 pixel screen area of display settings

16MB of available RAM

20MB of available hard drive storage

•

Mouse

CD Rom drive

Printer

For software updates, refer to the Oceanic web site at ->> www.OceanicWorldwide.com

For support, call OceanLog Support toll free at ->> (866) 732-7877, 8 Am to 5 Pm USA Paciﬁc time.

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107

CARE AND CLEANING

Protect your GEO 2 from shock, excessive temperatures, ex-

posure to chemicals, and tampering. Protect the lens against

scratches with a Instrument Lens Protector. Small scratches will

naturally disappear underwater.

• Soak and rinse the GEO 2 in fresh water at the end of each

day of diving, and check to ensure that the areas around

the Low Pressure (Depth) Sensor (Fig. 131a), PC Interface

Data Port (Fig. 131b), and buttons are free of debris or

obstructions.

• To dissolve salt crystals, use lukewarm water or a slightly

acidic bath (50% white vinegar/50% fresh water). After

removal from the bath, place the GEO 2 under gently

running fresh water and towel dry before storing.

• Transport your GEO 2 cool, dry, and protected.

INSPECTIONS AND SERVICE

Your GEO 2 should be inspected annually by an Authorized

Oceanic Dealer who will perform a factory prescribed function

check and inspection for damage or wear. To keep the 2 year

limited warranty in effect, this inspection must be completed one

year after purchase (+/- 30 days).

Fig. 131 - CASE BACK

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108

Oceanic recommends that you continue to have an inspection performed every year to

ensure it is working properly. The costs of annual inspections, or inspections relating to

water tight integrity, are not covered under the terms of the 2 year limited warranty.

To Obtain Service:

Take your GEO 2 to your local Authorized Oceanic Dealer.

If required to return your GEO 2 to the Oceanic USA factory:

• Obtain an RA (Return Authorization) number by contacting Oceanic USA at

510/562-0500 or send an e-mail to [email protected].

• Record all dive data in the Log and/or download the data stored in memory. All

data will be erased during factory service.

• Package it using a protective cushioning material.

• Include a legible note stating the speciﬁc reason for return, your name, address,

daytime phone number, serial number(s), and a copy of your original sales receipt

and Warranty Registration.

• Send freight prepaid and insured using a traceable method.

• Non-warranty service must be prepaid. COD is not accepted.

• Additional information is available on the Oceanic web site OceanicWorldwide.com

or on the local Oceanic web site that serves your global region.

The procedures that follow must be closely adhered to. Damage due to

improper battery replacement is not covered by the GEO 2's warranty.

When the battery is removed, settings and calculations for repetitive dives

are retained in the unit's memory while a new battery is installed.

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109

BATTERY REPLACEMENT

The Battery Compartment should only be opened in a dry and

clean environment with extreme care taken to prevent the en-

trance of moisture or dust.

As an additional precautionary measure to prevent formation

of moisture in the Battery Compartment, it is recommended that

the Battery be changed in an environment equivalent to the local

outdoor temperature and humidity (e.g., do not change the Bat-

tery in an air conditioned environment then take it outside during

a hot sunny day).

Fig. 132A - COVER

REMOVAL (using tool)

Inspect the Buttons, Lens, and Housing to ensure they are not

cracked or damaged. If there is any sign of moisture in the

GEO 2, DO NOT attempt to use it for diving until it receives

proper service by an authorized Oceanic facility.

Fig. 132B - COVER

REMOVAL (using thimbs)

Battery Removal

• Locate the Battery Compartment on the back of the unit.

• Rotate the Battery Cover clockwise 10 degrees using the

special Battery Cover Tool (Fig. 132A), or by pushing the

lower portion to the left while pushing the upper portion to

the right using your thumbs (Fig. 132B).

• Lift the Cover with O-ring up and away from the Housing.

• Using care not to damage the Contact (Fig. 133a), slide the

Battery up and out of the left side of the Compartment.

Fig. 133 - BATTERY

REMOVAL

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110

• Discard the Battery according to local regulations governing disposal of Lithium

batteries.

CAUTION: DO NOT allow a metal object to short circuit the top of the

Battery, which is positive (+), to the negative ( - ) contact of the Bat-

tery Compartment.

Inspection

• Closely check all of the sealing surfaces for any signs of damage that might impair

proper sealing.

• Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged.

• Remove the Battery Cover O-ring and inspect it for any signs of deterioration or

deformity. DO NOT use tools to remove the O-ring.

• To ensure proper sealing, O-ring replacement is highly recommended each time the

Battery is replaced.

• Closely examine the threads of the Battery Cover and Housing for any signs of

damage that might prevent proper threading.

• Closely examine the inside of the Battery Compartment for any signs of corrosion

indicating entrance of moisture into the unit.

• If it is necessary to clean the Battery Compartment, ﬂush it thoroughly with a solution

of 50% white vinegar and 50% fresh water. Rinse with fresh water, and allow to dry

overnight or blow dry with a hair dryer set at no heat.

WARNING: If damage, moisture, or corrosion is found, return your

GEO 2 to an Authorized Oceanic Dealer, and DO NOT attempt to use it

until it has received factory prescribed service.

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111

Battery Installation

• Slide a new 3 volt type CR2430 Lithium Battery, negative

side down into the Battery Compartment. Slide it in from

the left side (Fig. 134) and ensure that it slides under the

contact clip on the lower/right rim of the cavity.

• Lightly lubricate the new Cover O-ring* with silicone grease

and place it on the inner rim of the Battery Cover. Ensure

that it is evenly seated (Fig. 135).

Fig. 134 - BATTERY INSTALL

Fig. 135 - COVER O-RING

*The O-ring must be a genuine Oceanic part that can be purchased from an

Authorized Oceanic Dealer. Use of any other O-ring will void the warranty.

• Carefully place the Battery Cover (with O-ring) into position

on the rim of the Battery Compartment, then press it evenly

and completely down into place.

• Maintain the Battery Cover securely in place and turn it

counter clockwise 10 degrees using the special Battery

Cover tool (Fig. 136A), or by pushing the lower portion to

the right while pushing the upper portion to the left (Fig.

136B).

Fig. 136A - COVER

INSTALL (using tool)

Testing

• Observe the LCD display to ensure it is consistently clear

and sharp in contrast throughout the screen.

• Set the Date and Time.

• Verify all Set Points prior to diving.

Fig. 136B - COVER

INSTALL (using thumbs)

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112

If any portions of the display are missing or appear dim, or if a Low

Battery Condition is indicated, return your GEO 2 to an Authorized Oceanic

Dealer for a complete evaluation before attempting to use it.

ALTITUDE SENSING AND ADJUSTMENT

Altitude (i.e., ambient pressure) is measured upon activation and every 15 minutes until a

dive is made.

> Measurements are only taken when the unit is dry.

> Two readings are taken, the second reading 5 seconds after the ﬁrst. The readings

must be within 1 foot (30 cm) of each other to record that ambient pressure as the

current Altitude.

> No adjustments are made during any time that the Wet Contacts are bridged.

> When diving in high altitude waters from 3,001 to 14,000 feet (916 to 4,270

meters), the GEO 2 automatically adjusts to these conditions providing corrected

Depth, and reduced No Deco and O2 Times at intervals of 1,000 feet (305 meters).

> When the Conservative Factor is set On, NDLs are calculated based upon the next

higher 3,000 foot (915 meter) Altitude.

> At Sea Level, calculations are based upon an Altitude of 6,000 feet.

> All adjustments for Altitudes greater than 11,000 feet (3,355 meters) are then made

to allowable dive times for 14,000 feet (4,270 meters).

> The GEO 2 will not function as a Dive Computer above 14,000 feet (4,270 meters).

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113

ADDITIONAL INFORMATION PERTAINING TO FREE DIVE MODE

•

Although breathing apparatus is not utilized for Free Dive activities, nitrogen tissue loading

remains a factor. Nitrogen loading is calculated based upon a ﬁxed FO2 of Air.

Since a user has the option of alternating between SCUBA and Free Dive activities within a 24

hour period, nitrogen calculations and the displayed value of No Deco Dive Time Remaining

(NDC time) are carried over from one operating mode to the other, which permits the user to

maintain awareness of nitrogen absorption and offgasing status.

•

The mathematical models currently used in the GEO 2 are based on no decompression/

decompression multilevel repetitive dive schedules.

These algorithms do not take into account the physiological changes associated with the high

pressures that competitive type Free diving can expose a diver to.

ADDITIONAL WARNINGS

• Ensure that you know which Operating Mode is selected (NORM, GAUG, or FREE)

prior to commencing any dive.

• Conducting Free dives within a 24 hour period after conducting SCUBA dives,

combined with the effects of multiple rapid Free Dive ascents, increases your risk

of decompression sickness. Such activities may result in accelerated entry into

decompression which could cause serious injury or death.

• Combining competitive type Free dive activities that involve multiple descents/

ascents with activities utilizing SCUBA during the same 24 hour period is not

recommended. Presently, there is no data relating to such activities.

• It is highly recommended that anyone planning to become involved in

competitive type Free dive activities obtain proper instruction and training from

a recognized Free Diving trainer. It is imperative that the physiological affects

be understood and the diver is physically prepared.

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114

TECHNICAL DATA

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115

PZ+ ALGORITHM >> NDLS (HR:MIN) AT ALTITUDE (IMPERIAL)

Altitude

(feet)

3001

4001

5001

6001

7001

8001

9001

10001

11001

12001

13001

14000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

Depth

( FT )

3:17

1:49

1:05

0:48

0:35

0:26

0:19

0:16

0:12

0:10

0:08

0:07

0:06

0:05

0:04

2:30

1:21

0:53

0:37

0:26

0:19

0:15

0:11

0:09

0:08

0:07

0:06

0:05

0:04

2:21

1:15

0:51

0:35

0:24

0:18

0:14

0:10

0:08

0:07

0:06

0:05

0:04

2:14

1:11

0:49

0:33

0:23

0:17

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

2:08

1:08

0:47

0:32

0:21

0:16

0:12

0:09

0:08

0:07

0:06

0:05

0:04

0:03

2:02

1:05

0:44

0:30

0:20

0:15

0:11

0:09

0:07

0:06

0:05

0:04

0:03

1:57

1:02

0:42

0:28

0:19

0:14

0:10

0:08

0:07

0:06

0:05

0:04

0:03

1:52

1:00

0:39

0:26

0:18

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

1:47

0:57

0:37

0:24

0:17

0:12

0:09

0:07

0:06

0:05

0:04

0:03

1:39

0:55

0:35

0:23

0:16

0:11

0:09

0:07

0:06

0:05

0:04

0:03

1:34

0:53

0:34

0:22

0:16

0:11

0:08

0:07

0:06

0:05

0:04

0:03

1:29

0:51

0:33

0:21

0:14

0:10

0:08

0:07

0:05

0:04

0:03

0:00

100

110

120

130

140

150

160

170

180

190

PZ+ ALGORITHM >> NDLS (HR:MIN) AT ALTITUDE (METRIC)

Altitude

(meters)

916

1221

1526

1831

2136

2441

2746

3051

3356

3661

3966

4270

915

1220

1525

1830

2135

2440

2745

3050

3355

3660

3965

Depth

( M )

3:37

1:55

1:08

0:50

0:36

0:27

0:20

0:16

0:13

0:10

0:09

0:08

0:06

0:05

2:41

1:27

0:55

0:39

0:28

0:20

0:16

0:12

0:09

0:08

0:07

0:06

0:05

0:04

2:31

1:21

0:53

0:37

0:26

0:19

0:15

0:11

0:09

0:07

0:06

0:05

0:04

2:23

1:15

0:51

0:35

0:24

0:18

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

2:16

1:12

0:49

0:33

0:23

0:17

0:12

0:09

0:08

0:07

0:06

0:05

0:04

0:03

2:10

1:08

0:47

0:32

0:21

0:16

0:11

0:09

0:07

0:06

0:05

0:04

0:03

2:04

1:05

0:44

0:30

0:20

0:15

0:11

0:09

0:07

0:06

0:05

0:04

0:03

1:59

1:03

0:42

0:28

0:19

0:14

0:10

0:08

0:07

0:06

0:05

0:04

0:03

1:54

1:00

0:39

0:26

0:18

0:13

0:09

0:08

0:07

0:05

0:04

0:03

1:50

0:58

0:37

0:24

0:17

0:12

0:09

0:07

0:06

0:05

0:04

0:03

1:43

0:55

0:36

0:23

0:16

0:11

0:09

0:07

0:06

0:05

0:04

0:03

1:37

0:54

0:34

0:22

0:16

0:11

0:08

0:07

0:06

0:05

0:04

0:03

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116

DSAT ALGORITHM >> NDLS (HR:MIN) AT ALTITUDE (IMPERIAL)

Altitude

(feet)

3001

4001

5001

6001

7001

8001

9001

10001

11001

12001

13001

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

Depth

( FT )

4:20

2:17

1:21

0:57

0:40

0:30

0:24

0:19

0:16

0:13

0:11

0:09

0:08

0:07

0:06

0:05

3:21

1:43

1:03

0:43

0:31

0:24

0:19

0:15

0:12

0:09

0:08

0:07

0:06

0:05

0:04

3:07

1:36

1:00

0:40

0:30

0:23

0:18

0:14

0:11

0:09

0:08

0:07

0:06

0:05

0:04

2:55

1:30

0:58

0:38

0:28

0:21

0:17

0:13

0:10

0:08

0:07

0:06

0:05

0:04

2:45

1:25

0:55

0:36

0:27

0:20

0:16

0:12

0:09

0:08

0:07

0:06

0:05

0:04

2:36

1:20

0:52

0:34

0:26

0:19

0:15

0:11

0:09

0:08

0:07

0:06

0:05

0:04

2:28

1:16

0:48

0:33

0:24

0:18

0:14

0:10

0:08

0:07

0:06

0:05

0:04

2:21

1:12

0:45

0:31

0:23

0:17

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

2:15

1:09

0:43

0:30

0:22

0:16

0:12

0:09

0:08

0:07

0:06

0:05

0:04

0:03

2:10

1:06

0:41

0:29

0:20

0:16

0:11

0:09

0:07

0:06

0:05

0:04

0:03

2:04

1:03

0:39

0:28

0:19

0:14

0:10

0:08

0:07

0:06

0:05

0:04

0:03

1:58

1:01

0:37

0:27

0:18

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

100

110

120

130

140

150

160

170

180

190

DSAT ALGORITHM >> NDLS (HR:MIN) AT ALTITUDE (METRIC)

Altitude

916

1220

1221

1526

1831

2136

2441

2746

3051

3356

3661

3966

(meters) to

915

1525

1830

2135

2440

2745

3050

3355

3660

3965

4270

Depth

( M )

4:43

2:24

1:25

0:59

0:41

0:32

0:25

0:20

0:17

0:14

0:11

0:09

0:08

0:07

0:06

0:05

3:37

1:52

1:06

0:45

0:33

0:26

0:19

0:16

0:12

0:10

0:08

0:07

0:06

0:05

0:04

3:24

1:44

1:03

0:42

0:31

0:24

0:18

0:15

0:11

0:09

0:08

0:07

0:06

0:05

0:04

3:10

1:37

1:00

0:40

0:29

0:22

0:17

0:13

0:11

0:09

0:07

0:06

0:05

0:04

2:58

1:30

0:57

0:38

0:28

0:21

0:16

0:12

0:10

0:08

0:07

0:06

0:05

0:04

2:48

1:25

0:55

0:36

0:27

0:20

0:16

0:12

0:09

0:08

0:07

0:06

0:05

0:04

2:39

1:21

0:52

0:34

0:26

0:19

0:14

0:11

0:09

0:07

0:06

0:05

0:04

2:31

1:17

0:49

0:32

0:24

0:18

0:13

0:10

0:08

0:07

0:06

0:05

0:04

0:03

2:24

1:13

0:46

0:31

0:23

0:17

0:12

0:10

0:08

0:07

0:06

0:05

0:04

0:03

2:18

1:10

0:43

0:30

0:21

0:16

0:12

0:09

0:08

0:06

0:05

0:04

0:03

2:12

1:07

0:41

0:29

0:20

0:15

0:11

0:09

0:07

0:06

0:05

0:04

0:03

2:07

1:04

0:39

0:28

0:19

0:14

0:10

0:08

0:07

0:06

0:05

0:04

0:03

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117

SPECIFICATIONS

CAN.BE.USED.AS

•

Watch

Dive Computer (Air or Nitrox)

Digital Depth Gauge/Timer

Free Dive activity

DIVE.COMPUTER.PERFORMANCE

•

Buhlmann ZHL-16c based PZ+, or DSAT based, algorithm.

No Deco limits closely follow PADI RDP.

Decompression in agreement with Buhlmann ZHL-16c and French MN90.

No Deco Deep Stops - Morroni, Bennett.

Deco Deep Stops (not recommended) - Blatteau, Gerth, Gutvik.

Altitude - Buhlmann, IANTD, RDP (Cross).

Altitude corrections and O2 limits based on NOAA tables.

OPERATIONAL.PERFORMANCE

Function:

Accuracy:

•

Depth

Timers

±1% of full scale

1 second per day

Dive.Mode.Activation:

•

Must be in Dive Computer mode, if Wet Activation is set OFF.

Automatic by immersion in water, if Wet Activation is set ON.

Cannot be manually activated deeper than 4 FT (1.2 M), if Wet Activation is set OFF.

Cannot operate as a DC at elevations higher than 14,000 feet (4,270 meters)

Dive.Counter:

•

NORM/GAUG displays Dives #1 to 24, FREE displays #1 to 99 (0 if no dive made yet).

Resets to Dive #1, upon diving (after 24 hours with no dives).

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118

SPECIFICATIONS (CONTINUED)

Dive.Log.Mode:

•

Stores 24 most recent NORM/GAUG dives in memory for viewing.

After 24 dives, adds 25th dive in memory and deletes the older dive.

Altitude:

•

Operational from sea level to 14,000 feet (4,270 meters) elevation.

Measures ambient pressure every 30 minutes in Watch mode, when Dive Computer mode is accessed, and every

15 minutes while in DC Surface modes.

•

Does not measure ambient pressure when Wet.

Compensates for Altitudes above sea level beginning at 3,001 feet (916 meters) elevation and every 1,000 feet

(305 meters) higher.

Power:

•

(1) 3 vdc, CR2430, Lithium battery (Panasonic or equivalent)

Shelf life

Replacement

Use Life

Up to 7 years when shipped from factory in deep sleep mode.

User (annual recommended).

1 year or 300 dive hours if (2) 1 hour dives per day.

Battery..Indicator:

•

Warning - icon on solid when <= 2.75 volts, Battery change recommended.

Alarm - icon on ﬂashing when <= 2.50 volts, change the Battery, will not function as a DC.

Operating.Temperature:

•

Out of the water - between 20 °F and 140 °F (-6 and 60 °C).

In the water - between 28 °F and 95 °F (-2 and 35 °C).

BAR.GRAPHS:

TLBG

segments

1 to 3

•

No Deco Normal zone

No Deco Caution zone

Decompression zone

5 (all)

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119

SPECIFICATIONS (CONTINUED)

VARI

60 FT (18 M) & Shallower

Deeper than 60 FT (18 M)

segments

FPM

MPM

0 - 3

3.5 - 4.5

5 - 6

6.5 - 7.5

8 - 9

> 9

segments

FPM

0 - 20

21 - 30 6.5 - 9

31 - 40 9.5 - 12

41 - 50 12.5 - 15

51 - 60 15.5 - 18

MPM

0 - 6

0 - 10

11 - 15

16 - 20

21 - 25

26 - 30

> 30

•

Normal zone

•

Caution zone

Too Fast zone (ﬂashing)

5 (all)

> 60

> 18

NUMERIC.DISPLAYS:.

Range:

Resolution:

•

Main Time of Day

Dual Time of Day

Dual Time Differential

Watch Countdown Timer

Watch Chrono Lap Time

00:00_00 to 23:59_59 hr:min_sec

00:00 to 23:59 hr:min

- 23 to 0 to + 23:59 hr

23:59 to 0:00 hr:min

1 second

1 minute

1 hour

1 minute

.01 second

0:00 to 1:59:59_99

(hr:min:sec_.01 sec)

•

PCI Countdown Timer

Temperature

Altitude Level

Depth (display)

Max Operating Depth

Time to Fly

1:59 to 0:00 min:sec

0 to 99°F (-18 to 60°C)

Sea, EL2 to EL7

0 to 330 FT (100 M)

330 FT (100 M)

23:50 to 0:00 hr:min*

(* starting 10 min after the dive)

23:50 to 0:00 hr:min*

(* starting 10 min after the dive)

1 second

1°

1 level

1 FT (.1/1 M )

1 minute

•

Time to Desaturate

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120

SPECIFICATIONS (CONTINUED)

NUMERIC.DISPLAYS:.

Range:

Resolution:

•

NORM/GAUG SI Time

NORM/GAUG Dive Number

NORM/GAUG EDT

0:00 to 23:59 hr:min

0 to 24

00 to 999 min

1 minute

•

FO2 Set Points

PO2 Value

O2 Saturation

Dive Time Remaining

No Deco Deep Stop Time

No Deco Safety Stop Time

Safety Stop Run Timer

GAUG Dive Run Timer

Deco Stop Time

Air, 21 to 100 %

0.00 to 5.00 ATA

0 to 100 %

1 %

.01 ATA

1 %

0 to 999 min

1 minute

1 second

1 minute

2:00 to 0:00 min:sec

5:00 to 0:00 min:sec

0:00 to 9:59 min:sec

0 to 999 min

Total Ascent Time

Violation Countdown Timer

23:50 to 0:00 hr:min

•

FREE SI Time (< 1 hr)

FREE SI Time (=> 1 hr)

FREE Dive Number

FREE EDT (< 10 min)

FREE EDT (=> 10 min)

FREE Countdown Timer

0:00 to 59:59 min:sec

1:00 to 23:59 hr:min

0 to 99

0:00 to 9:59 min:sec

10 to 999 min

1 second

1 minute

1 second

1 minute

1 second

59:59 to 0:00 min:sec

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121

INSPECTION / SERVICE RECORD

Serial Number:

Firmware Rev:

____________________________________________

Date of Purchase:

Purchased from:

Below to be ﬁlled in by an Authorized Oceanic Dealer:

Date Service Performed

Dealer / Technician

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122

OCEANIC.WORLD.WIDE

OCEANIC USA

2002 Davis Street

San Leandro, CA 94577

Tel: 510/562-0500

Fax: 510/569-5404

Web: www.OceanicWorldwide.com

E-mail: [email protected]

OCEANIC UK

OCEANIC AUSTRALIA

Rosebud, Victoria, Australia

Tel: 61-3-5986-0100 Fax: 61-3-5986-1760

Web: www.OceanicAUS.com.au

E-mail: [email protected]

Devon, United Kingdom

Tel: (44) 1404-891819 Fax: +44 (0) 1404-891909

Web: www.OceanicUK.com

E-mail: [email protected]

OCEANIC NORTHERN EUROPE

Augsburg, Germany

OCEANIC HAWAII and MICRONESIA

Kapolei, Hawaii

Tel: +49 (0) 821 810342 0 Fax: +49 (0) 821 810342 29

Web: www.oceanic.de

Tel: 808-682-5488 Fax: 808-682-1068

E-mail: [email protected]

E-mail: ofﬁ[email protected]

OCEANIC ASIA PACIFIC

Singapore

Tel: +65-6391-1420 Fax: +65-6297-5424

E-mail: [email protected]

OCEANIC FRANCE

Nice, France

Tel: +33.(0)4 93 72 43 00 Fax: +33.(0)4 93 72 43 05

E-mail: [email protected]

OCEANIC JAPAN

Yokohama Kanagawa-Prev, Japan

Tel: 03-5651-9371

OCEANIC ITALY

Genova, Italy

Tel: +39 010 545 1212 Fax: +39 010 518 4232

Web: www.oceanicitalia.com

E-mail: [email protected]

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123

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