Elcometer CG70ABDL Operating Instructions Manual

Elcometer CG70ABDL Operating Instructions Manual

Corrosion gauge

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Models CG70ABDL
& CG70BDL
Corrosion Gauge
Operating Instructions
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Table of Contents
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Summary of Contents for Elcometer CG70ABDL

  • Page 1 Models CG70ABDL & CG70BDL Corrosion Gauge Operating Instructions...
  • Page 2 The following trademarks are registered trademarks of Elcometer Limited, Edge Lane, Manchester, M43 6BU. United Kingdom: Material Safety Data Sheets for the ultrasonic couplant supplied with the CG70ABDL & CG70BL and available as an accessory, are available to download via our website: Elcometer NDT Ultrasonic Couplant Material Safety Data Sheet : www.elcometerndt.com/images/MSDS/elcometer_ultrasonic_couplant.pdf...
  • Page 3: Table Of Contents

    12 Flaw Mode (CG70ABDL only) ........
  • Page 4: About Your Gauge

    Thank you for purchasing this Elcometer NDT product. Welcome to Elcometer NDT. The CG70 range of Corrosion Gauges are a world beating product. With the purchase of this gauge you now have access to the worldwide service and support network of Elcometer. For more information visit our website at www.elcometer.com.
  • Page 5: The Keypad

    Data can be downloaded to a computer for analysis and storage. To maximise the benefits of your new Elcometer NDT gauge, please take some time to read these Operating Instructions. Do not hesitate to contact Elcometer NDT or your Elcometer NDT supplier if you have any questions.
  • Page 6: Getting Started

    Elcometer, the orientation of the dual coaxial connectors is not critical; either plug may be fitted to either socket. Further information on transducers can be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com. 3.3 SWITCHING ON/OFF To switch on or off, press the on/off key The gauge will switch off automatically after 5 minutes of inactivity.
  • Page 7: The Measurement Screen

    The menus can be displayed in English, Spanish, and German. 1.Select MENU/SETUP/LANGUAGE and adjust 5 THE MEASUREMENT SCREEN Your gauge has up to four types of measurement screen: • A-Scan Waveform, RF (CG70ABDL only) • A-Scan Waveform, RECT (CG70ABDL only) • B-Scan •...
  • Page 8 Measurement Labels Displays the viewable range and are based on the values of DELAY/B-START and WIDTH/B-DEPTH Hot Menu (CG70ABDL The hot menu contains a selection of the most commonly used only) options, allowing you to conveniently adjust these to your needs...
  • Page 9 5.2 RF A-SCAN MEASUREMENT SCREEN (CG70ABDL only) The RF view shows the full sound wave as received by the gauge. The vertical axis indicates the amplitude of the received wave and the horizontal position indicates the time it is received, which is converted into thickness units using the material velocity.
  • Page 10 • Use the Auto Find function - see ‘Auto Find (CG70ABDL only)” on page 14. Note: Even if the waveform is outside of the viewable range of the display, a measurement can be taken and viewed using the DIGITS view.
  • Page 11: Measurement - Modes

    Further information on the Flaw Mode can be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com. For instructions on how to use the Flaw Mode see ‘Flaw Mode (CG70ABDL only)” on page 16.
  • Page 12: Setting Up The Gauge

    7 SETTING UP THE GAUGE 7.1 SELECTING THE TRANSDUCER TYPE MANUALLY Follow these steps to select your transducer type. 1. Select MENU/PROBE/TYPE and press ENTER 2. Scroll through the transducer list until the appropriate transducer is highlighted. 3. Press ENTER to select the transducer. 4.
  • Page 13 For the highest measurement accuracy use the known thickness calibration as this takes into account variation in material composition, temperature and a variety of other factors. 7.3.1 Known Material Calibration If the material velocity is unknown, and a sample thickness cannot be taken from the material, you can choose a material type from a list stored in the gauge.
  • Page 14: Taking Readings

    Two - Point calibration 1. Conduct a one point calibration routine as described previously in this section. You should conduct this routine at the high end of the measurement range 2. Repeat the routine with another sample at the low end of the measurement range, except this time enter the thickness into the TWO POINT area in the CAL menu.
  • Page 15: Gates (Cg70Abdl Only)

    (CG70ABDL only) 9.1 INTRODUCTION The Model CG70ABDL is equipped with gates which control the time measurement process allowing you to measure a specific region on or between waveforms. Further information on gates may be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com.
  • Page 16 (above or below the x axis in the RF A-Scan) and the Rectified A-Scan display (whether the top or bottom half of the RF display is shown). For further information refer to the Elcometer NDT Knowledge Centre on www.elcometerndt.com. To adjust POLARITY: 1.
  • Page 17: Flaw Mode (Cg70Abdl Only)

    12 FLAW MODE (CG70ABDL only) 12.1 INTRODUCTION Your gauge includes a basic flaw prove up mode. Further information on flaw detection can be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com. 12.2 FLAW MODE VIEW Feature Description Horizontal gridlines on the display represent...
  • Page 18: Measurement - Recording Your Readings

    • PEAK - Enables the Flaw Mode and Peak Hold options and view. When this option is enabled, the peak hold symbol is displayed on the right side of the display (to reset to zero, press CLR). 4. Press MEAS to return to the measurement screen. Note: When flaw mode is activated, a transducer delay will still be configured from the previously loaded transducer.
  • Page 19 The grid can have a maximum of 52 columns and 999 rows 4. Set the Auto Increment direction. This option allows you to select which direction the cursor moves after a reading is stored in terms of compass points. For example NORTH would move the cursor up a row, and WEST would move a column left.
  • Page 20: Gauge Setups

    2. To delete a reading, scroll to the cell location, press CLR and then OK (or ESC to cancel). The reading is deleted and if you wish you can now take another measurement and save the reading in this cell location. 13.6 EDITING A DATA LOGGER FILE You can edit the following fields of data files: •...
  • Page 21: Data Transfer Software

    15 DATA TRANSFER SOFTWARE Software is available which allows data to be transferred from your gauge to a PC. Presently Elcometer supplies ElcoMaster 2.0™ software for this purpose. To set-up other types of communications software: 1. Start the communications software.
  • Page 22: Storage

    The gauge does not contain any user-serviceable components. In the unlikely event of a fault, the gauge should be returned to your local Elcometer NDT supplier or directly to Elcometer NDT. The warranty will be invalidated if the instrument has been opened.
  • Page 23: Technical Specification

    Additionally, Elcometer NDT warrants transducers and accessories against such defects for a period of 90 days from receipt by the end user. If Elcometer NDT receives notice of such defects during the warranty period, Elcometer NDT will either, at its option, repair or replace products that...
  • Page 24: Spares & Accessories

    • Refund the purchase price. 19.3 AFTER THE WARRANTY PERIOD If your hardware should fail after the warranty period, contact Elcometer NDT for details of the services available, and to arrange for non-warranty service. 20 SPARES & ACCESSORIES 20.1 TRANSDUCERS Elcometer NDT gauges are not supplied with a transducer as standard - this must be ordered separately.
  • Page 25: Condition And Preparation Of Surfaces

    T = Titanium Block. 20.3 ULTRASONIC COUPLANT Each gauge is supplied with a 120ml (4oz) bottle of standard ultrasonic couplant. Replacement bottles and couplant for high temperature applications are available from your local Elcometer NDT supplier or directly from Elcometer NDT. Description Sales Part No.
  • Page 26: Sound Velocities Of Common Materials

    23 SOUND VELOCITIES OF COMMON MATERIALS Sound velocity Sound velocity Material Material (m/s) (in/µs) (m/s) (in/µs) Aluminium 6350 0.250 Paraffin 2210 0.087 Bismuth 2184 0.086 Platinum 3962 0.156 Brass 4394 0.173 Plexiglas 2692 0.106 Cadmium 2769 0.109 Polystyrene 2337 0.092 Cast Iron 4572 0.180...
  • Page 27 Menu Function Description MATERIAL Select the material velocity from a chart of basic material (CALIBRATION) types when a known sample thickness, or material velocity cannot be obtained. ONE-POINT Performs a single point calibration. This function allows you to automatically calculate the velocity by entering a known sample thickness.
  • Page 28 Allows you to restore grids files saved on a computer to GRID your gauge via the RS232 port. ABOUT Provides Elcometer NDT contact information and your gauge software version. Refer to the help section of your gauge NDT Link software for a complete electronic manual covering data transfer.
  • Page 29: Index

    26 INDEX Adjusting the Gates One Point calibration Alarm Auto Find Packaging Peak Batteries Polarity B-SCAN Measurement Screen Probe Zero Pulse - Echo (P-E) Pulse Width Calibration Pulse-Echo Coating (PECT) Calibration One Point Coating Calibration Couplant RECT A-Scan Measurement Screen Cut/Boost Reset RF A-Scan Measurement Screen...

This manual is also suitable for:

Cg70bdl

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