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Suunto COBRA - User Manual

Suunto COBRA
78 pages
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SUUNTO
COBRA
EN
USER’S GUIDE

Table of Contents

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Summary

Introduction to Suunto Cobra Dive Computer

Safety Precautions and Warnings

Crucial safety advice and warnings for using the dive computer.

Emergency Ascent Procedures

Procedures to follow in case of dive computer malfunction during a dive.

Dive Computer Limitations

Details the inherent limitations of dive computers and their reliance on theoretical models.

Nitrox Diving Considerations

Explains the risks and considerations specific to diving with Nitrox mixtures.

Getting Acquainted with Suunto Cobra

Functions Overview

Overview of dive modes, connections, buttons, and water contacts.

Connecting to Regulator

Instructions on how to attach the dive computer to a regulator first stage.

Push Button Functions

Details the functions of the SMART, PLAN, and TIME buttons for navigation and control.

Water Contacts

Explains the role of water contacts in automatic activation and data transfer.

Diving Operations with Suunto Cobra

Before Diving Procedures

Covers activation, pre-dive checks, battery status, planning, and user-definable alarms.

Activation and Pre-Dive Checks

Describes how the computer activates and the crucial pre-dive checks to perform.

Battery Power Indicators and Warnings

Explains the battery indicator levels and warnings.

Dive Planning with PLAN Button

Details how to use the PLAN button for dive planning and checking no-decompression limits.

User Definable Functions and Alarms

How to set user-definable functions and alarms for personal preferences.

Safety Stop Procedures

Explains the importance and types of safety stops: Recommended and Mandatory.

Recommended Safety Stop

Details the recommended safety stop procedure and its optional nature.

Mandatory Safety Stop

Explains the conditions for a mandatory safety stop due to ascent rate violations.

Diving in Air Mode

Details basic dive data, bookmarks, cylinder pressure, and ascent rate indicators.

Basic Dive Data Display

Information shown on the display during a no-decompression dive in Air mode.

Bookmark Functionality

How to make special marks (bookmarks) in the dive profile memory.

Cylinder Pressure and Air Time

Explains the display of cylinder pressure and remaining air time calculations.

Consumed Bottom Time (CBT)

How the no-decompression time is visually represented by bar graphs.

Ascent Rate Indicator

Graphical display of ascent rate and corresponding warnings.

Decompression Dive Procedures

Explains procedures and displays for dives requiring decompression stops.

Display Indicators Above Floor

Explains the display indicators when ascending above the floor.

Display at Ceiling Zone

Describes the display when reaching the ceiling zone for decompression.

Warning: Display Above Ceiling

Warning and action for ascending above the ceiling during decompression.

Diving in Nitrox Mode

Covers setup, oxygen displays, and oxygen limit fraction tracking for Nitrox.

Nitrox Mode: Before Diving

Setting up the computer for Nitrox diving, including entering O2% and PO2.

Nitrox Oxygen Displays

Details the display of oxygen percentage, PO2, and Oxygen Limit Fraction (OLF).

Oxygen Limit Fraction (OLF)

Explanation of the OLF bar graph for tracking oxygen toxicity.

Diving in Gauge Mode

Explains the operation and display information when using Gauge mode.

Surface Procedures

Covers surface interval, dive numbering, and flying after diving guidelines.

Surface Interval Display

Information displayed in Surface Mode and how surface interval affects dive numbering.

Dive Numbering Logic

How the dive computer numbers consecutive dives based on surface intervals.

Flying After Diving Guidelines

Guidelines and recommendations regarding flying after diving.

Audible and Visual Alarms

Explains the different types of audible and visual alarms and their meanings.

Altitude and Personal Dive Adjustments

How to set altitude and personal modes for conservative dive calculations.

Altitude Adjustment Settings

How to set the altitude mode for accurate calculations at different altitudes.

Personal Adjustment Settings

How to adjust conservatism based on personal factors affecting DCI risk.

Error Conditions and Recovery

Describes error modes, especially from omitted decompression, and recovery procedures.

Omitted Decompression Errors

Explains the consequences of omitting decompression and entering Error Mode.

Menu Based Modes and Operations

Memories and Data Transfer

Accessing dive logs, profile memory, history, and transferring data to a PC.

Logbook and Dive Profile Memory

Details on viewing dive logs and profile data.

Dive History Memory

Accessing a summary of all recorded dives.

Data Transfer to PC

How to connect to a PC for data download and management.

Simulation Modes

Using dive and planning simulators to familiarize with features and plan dives.

Dive Simulator

Simulating dive scenarios to understand computer behavior and warnings.

Dive Planning Simulator

Simulating dive planning for repetitive dives and adjusting surface intervals.

Set Modes Configuration

Accessing modes for setting dive parameters, time, and personal preferences.

Dive Parameter Settings

Settings related to dive parameters like altitude and personal adjustments.

Altitude and Personal Adjustment Settings

Setting altitude and personal modes for dive calculation adjustments.

Dive Time Alarm Setting

Setting dive time alarms for safety.

Maximum Depth Alarm Setting

Setting depth alarms for safety.

Nitrox;Oxygen Settings

Configuring Nitrox settings, including O2% and PO2.

Setting Time and Date

Adjusting time, date, and daily alarms.

Setting Preferences

Customizing preferences like backlight, units, and computer model.

Backlight Setting

Adjusting backlight on/off time.

Units Setting

Selecting between metric and imperial units.

Computer Model Setting

Choosing the dive computer's operating mode (Air, Nitrox, Gauge).

Care and Maintenance

Important Information

Key points regarding the depth sensor and water contacts cleaning.

Dive Computer Care

General guidelines for maintaining the dive computer's condition and longevity.

Routine Maintenance

Procedures for rinsing, drying, and checking the device after dives.

Water Resistance Checks

Importance of checking water resistance, especially the battery compartment for leaks.

Battery Replacement Guide

Instructions and critical notes for proper battery replacement to maintain water resistance.

Display Shield and Compass Attachment

Procedures for replacing the display shield and attaching a compass accessory.

Technical Description

Operating Principles

Explains core principles like no-decompression limits and dive tables.

No-Decompression Limits

Details no-decompression time limits based on depth and personal/altitude modes.

Suunto RGBM Algorithm

Explanation of the Suunto RGBM algorithm used for decompression calculations.

Oxygen Exposure Calculations

How the computer calculates and displays oxygen exposure and toxicity.

Technical Specifications

Lists the physical and functional specifications of the dive computer.

Product Warranty Information

Glossary of Terms

Suunto COBRA Specifications

General IconGeneral
Display TypeLCD
Operating ModesAir, Nitrox, Gauge
Logbook Memory36 hours
Battery TypeCR2450
BacklightYes
Temperature DisplayYes
Ascent Rate MonitorYes
Decompression ModelSuunto RGBM
Nitrogen and Oxygen MonitoringYes
Dive Time DisplayYes
Decompression Stop DisplayYes
Audible AlarmYes
Depth Rating150 m
Max Operating Depth150 m
PC InterfaceYes
TypeDive Computer
Battery Life2 years

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