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Cygnus M2-DIVE User Manual

Cygnus M2-DIVE
118 pages
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Cygnus DIVE
Ultrasonic Thickness Gauge for Divers
Operation Manual
Covers Gauge Model: M2-DIVE
Doc No. M2-DIVE-M-ENG_Iss5.docx
June 2017
(Mk2 DIVE Gauges)

Table of Contents

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Cygnus M2-DIVE Specifications

General IconGeneral
BrandCygnus
ModelM2-DIVE
CategoryDiving Instrument
LanguageEnglish

Summary

DIVE Gauge Kit Contents

Included Kit Items

Lists all items included in the Peli transportation case for the DIVE gauge.

Battery Management for the DIVE Gauge

Important Battery Handling Notes

Critical safety and operational guidelines for battery usage.

Procedure for Fitting the Battery

Step-by-step instructions for inserting and securing the battery.

Battery Removal

Procedure for Removing the Battery

Instructions on how to safely remove the battery from the gauge.

Battery Charging

Battery Charging Process

Details on using the supplied charger and charge time.

Fitting and Connecting the Ultrasonic Probe

Connecting the Underwater Probe Cable

Guide to connecting the probe's latching connector.

Understanding Ultrasonic Probes (Transducers)

Important Notes on Probe Usage

Guidelines for using only approved Cygnus Instruments probes.

Overview of Probe Types: Single and Twin Element

Introduction to the two main types of probes available for the gauge.

Probe Measurement Ranges

Defined Measurement Ranges per Probe Type

Specifies the measurement limits for each probe type in steel.

Probe Selection Guide

Application-Based Probe Selection Chart

Chart to help select the appropriate probe for various applications.

Single Element Probes and Protective Membranes

Membrane Features and Purpose

Description of the polyurethane membrane and its protective function.

Changing the Protective Membrane on Single Element Probes

Step-by-Step Membrane Replacement

Detailed instructions for replacing the probe's protective membrane.

Gauge Measurement Modes

Multiple Echo Mode (ME) Operation

Explanation of the ME mode, its reliability, and limitations.

Single Echo Mode (SE) Operation

Explanation of the SE mode, its use on corroded metals, and limitations.

Echo-Echo Mode (EE) Operation

EE Mode for Thin Coatings

Usage of EE mode for thin coatings and potential inaccuracies.

Importance of Gauge Calibration

Understanding Thickness Measurement Principles

Explains how ultrasonic gauges measure thickness based on sound velocity.

Using the Cygnus DIVE Gauge

Turning the DIVE Gauge On

Steps to power on the gauge and initial startup screens.

DIVE Gauge Operation Details

Probe Zeroing Procedure (Twin Crystal)

Instructions for zeroing twin crystal probes for accuracy.

Putting the Gauge into Standby Mode

Methods for conserving battery power by entering standby mode.

Pre-Dive Gauge Checks

Essential Operational and Calibration Tests

Recommended checks before each dive to ensure correct function.

The Measurement Screen Explained

Measurement Screen Display Elements

Overview of indicators like Measure Mode, Probe Type, Velocity, etc.

Battery Status and Display Information

Low Battery Level Indicators

How the gauge indicates low battery status with color changes.

Displaying Thickness Measurement Values

How the gauge displays the primary thickness measurement.

Understanding the A-Scan Display

Explanation of the A-Scan display showing echo pulses.

A-Scan Display Details and Surface Preparation

Surface Preparation for Measurement

Requirements for cleaning surfaces before taking measurements.

Taking Thickness Measurements

Step-by-Step Measurement Procedure

Instructions for preparing the surface and taking a measurement.

Echo Bars in Multiple Echo Mode

Interpreting Echo Bar Indications

How echo bars help locate suitable reflectors in ME mode.

Stability Indication in SE and Echo-Echo Modes

Understanding Stability Color Indicators

How color changes indicate measurement stability and reliability.

Interpreting A-Scan in Multiple Echo Mode

How Multiple Echo Measurements Work

Explanation of ultrasound pulse reflections in ME mode.

A-Scan Analysis for Pits and Flaws

Identifying Echoes from Pits and Flaws

How to identify measurement anomalies caused by internal defects.

A-Scan Analysis for Heavy Corrosion

Impact of Heavy Corrosion on Echoes

How heavy corrosion affects ultrasound signals and A-scan display.

Interpreting A-Scan in Single Echo Mode

Assessing Signal Quality in SE Mode

How to evaluate SE signal quality and measurement reliability.

Measuring Over Corrosion Pits

Precautions when Measuring Over Pits

Warning about measuring directly over corrosion pits.

Interpreting A-Scan in Echo-Echo Mode

Evaluating Echo-Echo Signal Quality

How to assess EE signal quality and identify measurement issues.

Changing Gauge Settings and Controls

Understanding the Two-Button System

Explanation of the gauge's button control combinations.

Button Functions in Menu Navigation

How buttons are used to navigate through menus.

Setup Screen Button Functions and Settings Storage

Button Functions in Setup Screens

Button operations for adjusting settings in setup screens.

Gauge Settings Saved Per Probe Type

How gauge settings are stored and recalled based on probe type.

Navigating the Gauge Menu System

Displaying the Main Menu

Steps to access the main menu from the measurement screen.

Data Logging Menu Functions

A-Scan Range Setting (A-SCAN RANGE)

Configuring the range of the A-scan graph display.

A-Scan Display and Velocity Settings

Turning the A-Scan Display On or Off

How to enable or disable the A-Scan display.

Setting the Velocity of Sound (VELOCITY)

Procedure for setting the material's sound velocity for accurate measurements.

Calibrating the Thickness Gauge

Calibrating to a Known Thickness

Method for calibrating the gauge using a known thickness sample.

Two Point Calibration Procedure

Two Point Calibration (CALIBRATE 2 POINT)

Advanced calibration method for improved accuracy in SE mode.

Material Velocity of Sound List

Pre-defined Material Velocity List

List of common materials with their typical sound velocities.

Data Logging Operations

Topside Repeater Remote Display Kit

CygLink Surface Display and Control Kit

Changing Gauge Settings via CygLink

Modifying Gauge Settings Through CygLink

How to adjust settings like Units, Mode, and Velocity remotely.

CygLink Surveys and Data Logging Management

Organizing Measurements into Survey Groups

How CygLink organizes logged data into surveys and groups.

Transferring Data from DIVE Gauge to CygLink

Transferring Logged Measurements

Steps to transfer recorded data from the DIVE gauge to CygLink.

CygLink Connection Troubleshooting

General Points on Multiple Echo Measurements

Techniques for Rough or Corroded Surfaces

Tips for finding reflectors on difficult surfaces using ME.

Probe Alignment and Material Quality Considerations

Importance of probe flatness and material consistency for ME.

Care and Servicing of the DIVE Gauge

Spares and Accessories List

Technical Specifications of the Cygnus DIVE Gauge

Table of Sound Velocities for Materials

Guide to Material Sound Velocities

Table providing sound velocities for various materials in m/s and in/us.

Shipping of Lithium-Ion Batteries

Lithium-Ion Battery Information and Regulations

Details on battery composition, voltage, and shipping regulations.

Warranty Information for Cygnus Thickness Gauges

Limited Three Year Warranty Terms

Covers warranty period, exclusions, and claim procedures.