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Elcometer PG70 Operating Instructions Manual

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Model PG70
Model PG70DL
Precision Gauge
Operating Instructions

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Summary of Contents for Elcometer PG70

  • Page 1 Model PG70 Model PG70DL Precision Gauge Operating Instructions...
  • Page 2 The following trademark is a registered trademark of Elcometer Limited, Edge Lane, Manchester, M43 6BU. United Kingdom: Material Safety Data Sheet for the ultrasonic couplant supplied with the PG70DL & PG70 and available as an accessory, is 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

    Contents About your gauge ..............2 The keypad .

  • Page 4: About Your Gauge

    The Model PG70/PG70DL Precision Gauge are world beating products. With the purchase of this gauge you now have access to the worldwide service and support network of Elcometer NDT. For more information visit our website at www.elcometerndt.com. 1 ABOUT YOUR GAUGE The Model PG70/PG70DL Precision Gauge are hand-held gauges for fast and accurate measurement of the thickness of thin materials.
  • Page 5 EN 15317. 1.2 WHAT THIS BOX CONTAINS Model PG70 or PG70DL Gauge, Bottle of couplant, Battery (2 x), Carrying case, Test certificate, Operating instructions, CD with data transfer and data collection software (DL version only), RS232 cable and USB to Serial converter.
  • Page 6 Your gauge is packed in a cardboard and foam package. Please ensure that this packaging is disposed of in an environmentally sensitive manner. Please consult your Local Environmental Authority for further guidance. Elcometer 207 Elcometer 207 Ultrasonic Thickness Gauge Ultrasonic Thickness Gauge...

  • Page 7: The Keypad

    2 THE KEYPAD MODEL PG70 Functions For more Mode information see Press to switch the gauge on or off. PG70 When switching off, the gauge retains all of its settings. PG70DL If the gauge is idle for 5 minutes, it will switch itself off.
  • Page 8 For more Mode information see a) Decreases values on the display (press and hold to change values quickly). PG70 b) Switches the display backlight between three settings; on, off and auto. page 19. PG70 c) Press and hold during gauge switch on to toggle LOC mode on/off page 20.
  • Page 9 Functions For more Mode information see a) Press to send the displayed thickness measurement to an external storage PG70 page 26. device via the RS232 port. b) Press to select functions in the menu and save readings PG70 c) Press to send the displayed thickness measurement to an internal memory page 26.

  • Page 10: Getting Started

    Please consult your local environmental authority for information on disposal in your region. Model PG70 Do not dispose of any batteries in fire. 3.2 CHOOSING THE TRANSDUCER Information can be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com.
  • Page 11 3.3 FITTING THE TRANSDUCER The transducer transmits and receives ultrasonic sound waves that the gauge uses to calculate the thickness of the material being measured. The transducer connects to the gauge via the attached cable, and single coaxial connectors. Transducers are supplied with two replaceable delay lines, 6.35 mm (1/4") and 12.7 mm (1/2").

  • Page 12: The Display

    4 THE DISPLAY Stability indicator (see below) Units (IN, MM, IN/µs, MM/s) INMM/ s µ Thickness value/Menu items Stability indicator One bar - no readings are being taken Less than 5 bars - reading is unstable and may be inaccurate More than 5 bars - reading is stable Refer to page 21 and page 33 for information on how to achieve a stable measurement.
  • Page 13 4.1 FRONT PANEL LIGHTS Green light illuminates when: • The alarm mode is active, and • the measured thickness is greater than the alarm value. Red light illuminates when: • The alarm mode is active, and • the measured thickness is less than the alarm value.

  • Page 14: Setting Up Gauge

    5 SETTING UP GAUGE As a delay line transducer should be used with these gauges, zeroing of the gauges is not necessary. 5.1 CALIBRATION In order for the gauge to make accurate measurements, it must be set to the correct sound-velocity for the material being measured.
  • Page 15 2. Press the transducer against the sample piece, making sure that the transducer is flat against the surface of the sample. The display should show some (probably incorrect) thickness value, and nearly all the bars of the stability indicator should be illuminated. 3.

  • Page 16: Measurement Modes

    Note: At any time during the gauge calibration procedure (IN, MM, IN/µs, or M/s flashing in the display), pressing the SCAN (PG70) or CLR (PG70DL) will restore the gauge to the factory default sound-velocity for steel, 5918 m/s (0.233 in/µs).
  • Page 17 6.1.1 To select measurement mode Model PG70 Model PG70DL 1. Press UP to switch between GAtE I-E, GAtE 1. Select MODE/GAtE. E-E, GAtE Auto or GAtE PLAS. 2. Press SEND to switch between GAtE I-E, 2. Repeat until correct mode is displayed.
  • Page 18 Your gauge includes Differential Mode which allows it to display the positive or negative difference from an entered nominal value. To switch differential mode on/off and enter the value: Model PG70 Model PG70DL 1. Press the dIFF. 1. Press MODE/dIFF 2.
  • Page 19 Use of the red light and beeper improves the speed and efficiency of the inspection process by eliminating constant viewing of the reading displayed. To switch beeper on/off Model PG70 Model PG70DL 1. While the gauge is off, press and hold down 1.
  • Page 20 To set alarm value and switch alarm on Model PG70 Model PG70DL 1. Press ALRM to toggle the status of the alarm. 1. Select MENU/ALAr. When toggled on the gauge displays ALAr 2. Press SEND to toggle the alarm on/off.
  • Page 21 In AUTO mode the backlight automatically illuminates while the gauge is making a measurement and switches off after several seconds (to conserve battery life). 6.5.1 To set backlight mode Model PG70 Model PG70DL 1. Press DOWN to toggle the status of the 1.

  • Page 22: Taking Readings

    Calibrate the gauge. See page 20. • Prepare the surface. See Condition and Preparation of Surfaces on the Elcometer NDT Knowledge Centre at www.elcometerndt.com . 7.2 PROCEDURE 1. Apply couplant For the gauge to work correctly there must be no air gaps between the transducer and the surface of the material to be measured.
  • Page 23 3. Read display If six or seven bars of the stability indicator are showing, the display will be reading the correct thickness of the material directly beneath the transducer. If the stability indicator has fewer than five bars showing, or the numbers on the display seem erratic, check to make sure that there is an adequate film of couplant beneath the transducer, and that the transducer is seated flat against the material.

  • Page 24: Measurement - Recording Your Readings (Pg70Dl Only)

    8 MEASUREMENT - RECORDING YOUR READINGS (PG70DL ONLY) The Model PG70DL is equipped with a data logger a useful feature for reporting your inspections. It increases efficiency by reducing the time it takes to manually record the measurements during the inspection process.
  • Page 25 7. Press UP and DOWN to advance to the desired memory location. 8.2 STORING A MEASUREMENT 1. Press SEND to store a reading in the memory location. The data logger will then automatically advance to the next memory location. 8.3 DELETING CONTENTS OF A MEMORY LOCATION The user may require a memory location that is currently full to be over written.

  • Page 26: Transferring Readings To A Computer

    A data transfer cable is used to connect the gauge to the computer. This cable is supplied with the Model PG70DL, but must be ordered separately for the Model PG70 - see “vices available, and to arrange for non- warranty service.” on page 29.
  • Page 27 ElcoMaster™ 2.0 includes all the charts that you may need together with a report designer to let you design your reports the way you wish to see them. All of this software can also be downloaded from the Elcometer NDT website www.elcometerndt.com. 9.3 TRANSFER SET UP 1.
  • Page 28 9.4 TRANSFERRING DATA Model PG70 After taking a measurement, press SEND to send the measurement to the computer. Model PG70 DL TRANSFERRING ONE BATCH 1. Press MEM to activate the data logging functions and settings. 2. Press SEND to enter batch setup.

  • Page 29: Storage

    4. Press MEM to exit the data logging functions. 9.5 PRINTING A BATCH A batch can, very simply, be sent to a communications program on a PC and then printed. The procedure for printing a batch is outlined below: 1. Press MEM to activate the data logging functions and settings. 2.

  • Page 30: Maintenance

    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 direct to Elcometer NDT. The warranty will be invalidated if the instrument has been opened.

  • Page 31: Technical Specification

    12 TECHNICAL SPECIFICATION Range: 0.15 mm to 25.4 mm (0.006" to 1.000") Resolution: 0.002 mm (0.0001") Accuracy: ±0.02 mm (±0.0008"), depends on material and conditions Sound-velocity range: 1250 m/s to 10 000 m/s (0.0492 in/µs to 0.3937 in/µs) Weight: 295 g (10 oz) including batteries Size: 63.5 mm x 120.6 mm x 31.5 mm (2.5"...

  • Page 32: Spares & Accessories

    13 SPARES & ACCESSORIES 13.1 TRANSDUCERS Elcometer NDT gauges are not supplied with a transducer as standard - this must be ordered separately. The transducers listed below are the most commonly used however, Elcometer NDT offer a wide range of other transducers to suit various applications.
  • Page 33 T = Titanium Block. 13.3 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 34: Warranty

    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 prove to be defective.

  • Page 35: Transducers

    • Refund the purchase price. 14.3 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. 15 TRANSDUCERS Further information can be found on the Elcometer NDT Knowledge Centre on www.elcometerndt.com.

  • Page 36: Sound Velocities Of Common Materials

    18 SOUND VELOCITIES OF COMMON MATERIALS Sound-velocity (m/ Sound-velocity (in/ Sound-velocity (m/ Sound-velocity (in/ Material Material µs) 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...

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Pg70dl

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