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Oceanic GEO 2 - User Manual

Oceanic GEO 2
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Table of Contents

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Summary

Abbreviations and Terms

Decompression Model Explanation

Features and Watch Mode

Display Layout and Icons

Understanding Display Icons

Explains the various icons used on the dive computer display.

Overview and Control Console

Interactive Control Console Operation

Details the function and use of the dive computer's four control buttons.

Menu System Navigation

Backlight Functionality

Menu Navigation Button Actions

Describes the specific button presses and holds for navigating menus.

Audible Alarm Settings

PC Interface and Data Management

Power Supply and Battery Warnings

Low Battery Warning on Surface

Details the display and behavior when battery level is low while on the surface.

Low Battery Warning During Dive

Explains display and function changes when battery is low during a dive.

Watch Main (Default) Time Settings

Watch Menu Navigation

Details how to navigate and select options within the Watch Menu.

Dual Time Functionality

Watch Altitude Display

Shows altitude information in Watch mode, including temperature and date format.

Countdown Timer (CDT) Settings

Countdown Timer Status Display

Shows the remaining countdown time or if the timer is complete or off.

Setting the Countdown Timer

Explains how to set the hour and minute values for the countdown timer.

Chronograph Functionality

Daily Alarm Setup

Set Time (T) Menu

Setting the Date Format

Configures the display order for Month and Day digits.

Setting the Hour Format

Configures the hour display for 12-hour (AM/PM) or 24-hour format.

Selecting Default Time

Chooses between Home or Away time to be displayed as the main Watch Time.

Setting Dual Time Differential

Sets an hour-based differential for the Dual Time display.

Setting the Time of Day

Directly changes the Time of Day for the selected Watch Default Time.

Setting the Date

Sets the year, month, and day for the device, independent of date format.

Dive Computer Operating Modes

Dive Computer Mode Access

Norm Surface Menu and Modes

Norm Surface Main Display

Displays Surface Interval time, Time of Day, dive number, and system icons.

Norm Surface Alt 1 Display

Shows Surface Interval, last dive data, max depth, and elapsed dive time.

Norm Surface Alt 2 Display

Displays temperature and altitude information.

Fly;Sat Time Calculation

Norm Surface Alt 3 Display

Shows current O2%, PO2 alarm value, Gas 1 FO2, and system icons.

Fly and Saturation Time Displays

Shows countdown timers for Time to Fly and Time to Desaturate.

Plan Mode (Norm) Functionality

PDPS (Pre Dive Planning Sequence)

Log Mode (Norm;Gaug) Operation

Logbook Dive Preview

Allows viewing of recorded dive data, including date, time, and dive number.

Logbook Data Display 1

Presents pre-dive Surface Interval and Total Ascent Time data for a dive.

Logbook Data Display 2

Shows minimum dive temperature and altitude information.

Logbook Data Display 3

Displays end-of-dive O2%, highest PO2, and gas settings.

Set F Menu (Norm FO2) Configuration

Set F Menu Lead-in

Entry point for configuring FO2 settings for Nitrox diving.

Setting FO2 for Gas 1

Configures the Fraction of Oxygen (FO2) for the first gas mix.

Setting FO2 for Gas 2

Configures the Fraction of Oxygen (FO2) for the second gas mix.

Setting FO2 Default Value

Sets the default FO2 value for calculations, typically 50%.

Set A Menu (Norm;Gaug Alarms)

Setting Depth Alarms

Configures depth-based alarms for dive modes.

Setting Elapsed Dive Time (EDT) Alarm

Sets an alarm based on the Elapsed Dive Time during a dive.

Setting Tissue Loading Bar Graph (TLBG) Alarm

Configures the TLBG alarm for nitrogen loading status.

Setting Dive Time Remaining (DTR) Alarm

Sets an alarm based on the remaining dive time.

Set U Menu (Utilities) Configuration

Setting PO2 Alarm

Configures the alarm for partial pressure of oxygen (PO2) levels.

Setting Wet Activation

Enables or disables automatic dive mode activation upon water immersion.

Setting Measurement Units

Selects between Imperial (FT) and Metric (M) units for display.

Setting Deep Stop (DS)

Enables or disables the Deep Stop feature during No Deco dives.

Setting Safety Stop (SS)

Configures the Safety Stop depth and timer settings.

Setting Dive Algorithm

Selects between DSAT or PZ+ algorithms for dive calculations.

Conservative Factor (CF) Adjustment

Adjusts dive time calculations for increased safety margins.

Setting Backlight Duration

Configures how long the display backlight remains active.

Setting Sampling Rate

Determines the frequency of data sampling for logging.

Set M Menu (Dive Op Mode)

History Mode (Norm;Gaug) Data

Serial Number Information

Dive Mode Features Overview

Dive Computer Bar Graphs

Tissue Loading Bar Graph (TLBG)

Represents nitrogen loading status and deco conditions.

Variable Ascent Rate Indicator (VARI)

Dive Algorithms Explained

Conservative Factor (CF) Adjustment

Adjusts dive time calculations for increased safety margins.

Deep Stop (DS) Feature

Safety Stop (SS) Feature

Dive Time Remaining (DTR) and NDC

No Deco Dive Time Remaining (NDC)

Maximum time allowed at current depth before entering deco.

OTR (O2 DTR) Calculation

Norm Dive Modes Overview

No Deco Dive Main Display

No Deco Alt 1 Display

Displays Time of Day and Temperature.

No Deco Alt 2 Display (Nitrox)

Shows Nitrox specific data: NX icon, %O2, PO2, and Gas settings.

Deep Stop Preview Screen

Displays Deep Stop depth and time settings before activation.

Deep Stop Main Display

Safety Stop Main (On) Display

Decompression Mode Entry

Deco Stop Main Display

Shows current depth, Ascent Time, Stop Depth, and TLBG.

Deco Stop Alt 1 Display

Displays dive depth, Ascent Time, Max Depth, EDT, and TLBG.

Deco Stop Alt 2 Display

Shows Time of Day and Temperature.

Deco Stop Alt 3 Display (Nitrox)

Displays Nitrox specific data: NX icon, Gas, %O2, PO2, and FO2.

Conditional Violation (CV)

Delayed Violation 1 (DV1)

Delayed Violation 2 (DV2)

Delayed Violation 3 (DV3)

Violation Gauge Mode (VGM)

VGM Dive Main Display

Shows depth, VIO, EDT, and ascent rate in VGM mode.

VGM Display on Surface

Describes VGM display for 10 minutes post-dive or after a delayed violation.

High PO2 Warning and Alarm (Norm Only)

High PO2 Warning During Deco

Explains PO2 display behavior and alarms when in decompression mode.

PO2 Alarm Main Display

High O2 Warning and Alarm (Norm Only)

Gas Switching Functionality

Digital Gauge Mode Overview

Gaug Surface Main Display

Gaug Surface Alt 1 Display

Displays last dive's SI, max depth, and elapsed dive time.

Gaug Surface Menu Navigation

Gaug Surface Alt 2 Display

Shows temperature and altitude information.

Gaug Dive Main Display

Gaug Dive Alt 1 Display

Displays max depth and elapsed dive time.

Gaug Dive Alt 2 Display

Shows Time of Day and Temperature.

Gaug Dive Delayed Violation 3 (DV3)

Free Dive Mode Overview

Free Surf Main Display

Free Surf Alt 1 Display

Displays last dive's SI, max depth, and elapsed dive time.

Free Surf Menu Navigation

Free Surf Alt 2 Display

Shows temperature and altitude information.

Free Dive CDT Lead-in

Free Dive CDT Status

Shows the remaining countdown time or if the timer is complete or off.

Set FA Menu (Free Alarms)

Setting Free Dive Depth Alarm 1

Sets the first depth alarm for Free Dive Mode.

Free Dive Depth Alarms (DA)

Set M Menu (Free Dive Mode)

Shared Settings with Norm Mode

Lists settings in Free Mode that can be changed via Norm Mode's Set U menu.

Free Dive Main Display

Free Dive Alt 1 Display

Free Dive Alt 2 Display

Free Dive Alarms

Free Dive High Nitrogen Alarms

Reference Information

PC Interface and Software

Care and Cleaning Procedures

Inspections and Service Schedule

Battery Replacement Procedure

Battery Removal Steps

Details the steps for safely removing the battery from the unit.

Battery Installation Steps

Post-Battery Replacement Testing

Ensures the display is clear and sets initial parameters after installation.

Altitude Sensing and Adjustment

Additional Free Dive Mode Information

Additional Free Dive Warnings

Highlights crucial safety precautions for free diving activities.

Technical Data

PZ+ Algorithm No Deco Limits

DSAT Algorithm No Deco Limits

Dive Computer Specifications

Bar Graph Specifications (TLBG)

Details the segment zones for the Tissue Loading Bar Graph (TLBG).

Numeric Displays Specifications

VARI Ascent Rate Specifications

Defines the segments and speeds for the Variable Ascent Rate Indicator.

Inspection and Service Record

Oceanic Worldwide Contact Information

Summary

Abbreviations and Terms

Decompression Model Explanation

Features and Watch Mode

Display Layout and Icons

Understanding Display Icons

Explains the various icons used on the dive computer display.

Overview and Control Console

Interactive Control Console Operation

Details the function and use of the dive computer's four control buttons.

Menu System Navigation

Backlight Functionality

Menu Navigation Button Actions

Describes the specific button presses and holds for navigating menus.

Audible Alarm Settings

PC Interface and Data Management

Power Supply and Battery Warnings

Low Battery Warning on Surface

Details the display and behavior when battery level is low while on the surface.

Low Battery Warning During Dive

Explains display and function changes when battery is low during a dive.

Watch Main (Default) Time Settings

Watch Menu Navigation

Details how to navigate and select options within the Watch Menu.

Dual Time Functionality

Watch Altitude Display

Shows altitude information in Watch mode, including temperature and date format.

Countdown Timer (CDT) Settings

Countdown Timer Status Display

Shows the remaining countdown time or if the timer is complete or off.

Setting the Countdown Timer

Explains how to set the hour and minute values for the countdown timer.

Chronograph Functionality

Daily Alarm Setup

Set Time (T) Menu

Setting the Date Format

Configures the display order for Month and Day digits.

Setting the Hour Format

Configures the hour display for 12-hour (AM/PM) or 24-hour format.

Selecting Default Time

Chooses between Home or Away time to be displayed as the main Watch Time.

Setting Dual Time Differential

Sets an hour-based differential for the Dual Time display.

Setting the Time of Day

Directly changes the Time of Day for the selected Watch Default Time.

Setting the Date

Sets the year, month, and day for the device, independent of date format.

Dive Computer Operating Modes

Dive Computer Mode Access

Norm Surface Menu and Modes

Norm Surface Main Display

Displays Surface Interval time, Time of Day, dive number, and system icons.

Norm Surface Alt 1 Display

Shows Surface Interval, last dive data, max depth, and elapsed dive time.

Norm Surface Alt 2 Display

Displays temperature and altitude information.

Fly;Sat Time Calculation

Norm Surface Alt 3 Display

Shows current O2%, PO2 alarm value, Gas 1 FO2, and system icons.

Fly and Saturation Time Displays

Shows countdown timers for Time to Fly and Time to Desaturate.

Plan Mode (Norm) Functionality

PDPS (Pre Dive Planning Sequence)

Log Mode (Norm;Gaug) Operation

Logbook Dive Preview

Allows viewing of recorded dive data, including date, time, and dive number.

Logbook Data Display 1

Presents pre-dive Surface Interval and Total Ascent Time data for a dive.

Logbook Data Display 2

Shows minimum dive temperature and altitude information.

Logbook Data Display 3

Displays end-of-dive O2%, highest PO2, and gas settings.

Set F Menu (Norm FO2) Configuration

Set F Menu Lead-in

Entry point for configuring FO2 settings for Nitrox diving.

Setting FO2 for Gas 1

Configures the Fraction of Oxygen (FO2) for the first gas mix.

Setting FO2 for Gas 2

Configures the Fraction of Oxygen (FO2) for the second gas mix.

Setting FO2 Default Value

Sets the default FO2 value for calculations, typically 50%.

Set A Menu (Norm;Gaug Alarms)

Setting Depth Alarms

Configures depth-based alarms for dive modes.

Setting Elapsed Dive Time (EDT) Alarm

Sets an alarm based on the Elapsed Dive Time during a dive.

Setting Tissue Loading Bar Graph (TLBG) Alarm

Configures the TLBG alarm for nitrogen loading status.

Setting Dive Time Remaining (DTR) Alarm

Sets an alarm based on the remaining dive time.

Set U Menu (Utilities) Configuration

Setting PO2 Alarm

Configures the alarm for partial pressure of oxygen (PO2) levels.

Setting Wet Activation

Enables or disables automatic dive mode activation upon water immersion.

Setting Measurement Units

Selects between Imperial (FT) and Metric (M) units for display.

Setting Deep Stop (DS)

Enables or disables the Deep Stop feature during No Deco dives.

Setting Safety Stop (SS)

Configures the Safety Stop depth and timer settings.

Setting Dive Algorithm

Selects between DSAT or PZ+ algorithms for dive calculations.

Conservative Factor (CF) Adjustment

Adjusts dive time calculations for increased safety margins.

Setting Backlight Duration

Configures how long the display backlight remains active.

Setting Sampling Rate

Determines the frequency of data sampling for logging.

Set M Menu (Dive Op Mode)

History Mode (Norm;Gaug) Data

Serial Number Information

Dive Mode Features Overview

Dive Computer Bar Graphs

Tissue Loading Bar Graph (TLBG)

Represents nitrogen loading status and deco conditions.

Variable Ascent Rate Indicator (VARI)

Dive Algorithms Explained

Conservative Factor (CF) Adjustment

Adjusts dive time calculations for increased safety margins.

Deep Stop (DS) Feature

Safety Stop (SS) Feature

Dive Time Remaining (DTR) and NDC

No Deco Dive Time Remaining (NDC)

Maximum time allowed at current depth before entering deco.

OTR (O2 DTR) Calculation

Norm Dive Modes Overview

No Deco Dive Main Display

No Deco Alt 1 Display

Displays Time of Day and Temperature.

No Deco Alt 2 Display (Nitrox)

Shows Nitrox specific data: NX icon, %O2, PO2, and Gas settings.

Deep Stop Preview Screen

Displays Deep Stop depth and time settings before activation.

Deep Stop Main Display

Safety Stop Main (On) Display

Decompression Mode Entry

Deco Stop Main Display

Shows current depth, Ascent Time, Stop Depth, and TLBG.

Deco Stop Alt 1 Display

Displays dive depth, Ascent Time, Max Depth, EDT, and TLBG.

Deco Stop Alt 2 Display

Shows Time of Day and Temperature.

Deco Stop Alt 3 Display (Nitrox)

Displays Nitrox specific data: NX icon, Gas, %O2, PO2, and FO2.

Conditional Violation (CV)

Delayed Violation 1 (DV1)

Delayed Violation 2 (DV2)

Delayed Violation 3 (DV3)

Violation Gauge Mode (VGM)

VGM Dive Main Display

Shows depth, VIO, EDT, and ascent rate in VGM mode.

VGM Display on Surface

Describes VGM display for 10 minutes post-dive or after a delayed violation.

High PO2 Warning and Alarm (Norm Only)

High PO2 Warning During Deco

Explains PO2 display behavior and alarms when in decompression mode.

PO2 Alarm Main Display

High O2 Warning and Alarm (Norm Only)

Gas Switching Functionality

Digital Gauge Mode Overview

Gaug Surface Main Display

Gaug Surface Alt 1 Display

Displays last dive's SI, max depth, and elapsed dive time.

Gaug Surface Menu Navigation

Gaug Surface Alt 2 Display

Shows temperature and altitude information.

Gaug Dive Main Display

Gaug Dive Alt 1 Display

Displays max depth and elapsed dive time.

Gaug Dive Alt 2 Display

Shows Time of Day and Temperature.

Gaug Dive Delayed Violation 3 (DV3)

Free Dive Mode Overview

Free Surf Main Display

Free Surf Alt 1 Display

Displays last dive's SI, max depth, and elapsed dive time.

Free Surf Menu Navigation

Free Surf Alt 2 Display

Shows temperature and altitude information.

Free Dive CDT Lead-in

Free Dive CDT Status

Shows the remaining countdown time or if the timer is complete or off.

Set FA Menu (Free Alarms)

Setting Free Dive Depth Alarm 1

Sets the first depth alarm for Free Dive Mode.

Free Dive Depth Alarms (DA)

Set M Menu (Free Dive Mode)

Shared Settings with Norm Mode

Lists settings in Free Mode that can be changed via Norm Mode's Set U menu.

Free Dive Main Display

Free Dive Alt 1 Display

Free Dive Alt 2 Display

Free Dive Alarms

Free Dive High Nitrogen Alarms

Reference Information

PC Interface and Software

Care and Cleaning Procedures

Inspections and Service Schedule

Battery Replacement Procedure

Battery Removal Steps

Details the steps for safely removing the battery from the unit.

Battery Installation Steps

Post-Battery Replacement Testing

Ensures the display is clear and sets initial parameters after installation.

Altitude Sensing and Adjustment

Additional Free Dive Mode Information

Additional Free Dive Warnings

Highlights crucial safety precautions for free diving activities.

Technical Data

PZ+ Algorithm No Deco Limits

DSAT Algorithm No Deco Limits

Dive Computer Specifications

Bar Graph Specifications (TLBG)

Details the segment zones for the Tissue Loading Bar Graph (TLBG).

Numeric Displays Specifications

VARI Ascent Rate Specifications

Defines the segments and speeds for the Variable Ascent Rate Indicator.

Inspection and Service Record

Oceanic Worldwide Contact Information

Oceanic GEO 2 Specifications

General IconGeneral
Display TypeLCD
BacklightYes
Operating ModesAir, Nitrox, Gauge, Free Dive
Battery TypeCR2450
User Replaceable BatteryYes
Log Capacity24 Dives
TypeWrist Computer
AlarmsAudible and Visual
Number of Buttons4
Battery Life300 Dive Hours
AlgorithmPelagic DSAT
Depth Rating100 meters
PC InterfaceOptional
Nitrox CompatibilityYes
Water Resistance100 meters

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