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SDI PORTAGAUGE 4 User Manual

Portable, robust device used to accurately measure the thickness of a material using multiple echo, ultrasonic technology
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PORTAGAUGE
®
4
USER MANUAL

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Summary of Contents for SDI PORTAGAUGE 4

  • Page 1 PORTAGAUGE ® USER MANUAL...

  • Page 2: Table Of Contents

    Contents Introduction and Key Features 1.1 What does the Portagauge ® 1.2 The Portagauge ® 1.21 The Portagauge ® 4 – Unit and Measuring Screen 1.22 The Portagauge ® 4 – Definition of Menu Items How does a Portagauge ® 4 work? Operating Instructions Introduction...

  • Page 3: Introduction And Key Features

    1. Introduction and key features What does the Portagauge ® The Portagauge 4 is a portable, robust device used to accurately measure the ® thickness of a material using multiple echo, ultrasonic technology. The Portagauge 4 is ® capable of working across a large number of different applications and environments, whether this be different surface conditions, the presence of rust, small curvature surfaces or for any other maintenance and inspection requirement.

  • Page 4: The Portagauge

    The Portagauge ® Lemo Connector: Allows for secure Display: Color LCD fastening of the cable for display for access to the the sensor probe. Measuring screen and Menu Right Option Key: screen. Selects the option at Left Option Key: the bottom right of the Selects the option at the LCD screen bottom left of the LCD...

  • Page 5: Definition Of Menu Items

    Definition of Menu Items iProbe Shows that an iProbe has been connected. The probes are — automatically recognised by the gauge and all the relevant probe data is transferred to the gauge to perfectly match the probe to the gauge for optimum performance. All materials have varying velocity of sound properties and —...

  • Page 6: How Does A Portagauge ® 4 Work

    4 work? How does a Portagauge ® All sound is physical vibrations which move through a material, and in the case of the sound we are used to, the vibrations move through air. Ultrasound is the same as the sound we experience, but its frequency is beyond that which humans are capable of hearing.

  • Page 7: Operating Instructions

    2. Operating Instructions DO NOT PROCEED BEFORE READING SECTION 1. There are two basic procedures which must be carried out when using the Portagauge ® 1. Preparation: Calibration ensures that the Portagauge ® equipment functions properly for the specific metal being tested. 2.

  • Page 8: Preparation

    PREPARATION Preparation for testing is simple, quick and ensures you get the most reliable and accurate results from your testing. It ensures the equipment is assembled correctly and that the appropriate probe is selected. Calibration ensures that the unit and probe work correctly for the specific metal being tested.

  • Page 9: Probe Membranes

    Probe Membranes All probes are fitted with protective membranes to help prolong the life of the probe. The membranes also provide a flexible interface which acts as an aid when working on rough surfaces. Membrane wear should be monitored and checked at regular intervals.

  • Page 10: Calibration

    Calibration The gauge should be calibrated to the type of material that is being measured. This is because ultrasound travels at different speeds in different materials. There are two methods of changing the calibration. Either adjust the velocity of sound setting according to the metal being measured, or adjust the gauge to a known thickness of metal.

  • Page 11: Speed Table

    Speed Table The given values are in certain cases strongly dependent on the alloy, heat treatment, manufacturing and processing and are therefore only approximate standard values. They are given here as a guide only. Material Speed – m/s Aluminium 6200 – 6360 Rolled 6420 Duraluminium...

  • Page 12: Test Procedure

    STEP 4: Turn on the gauge using the ON/OFF button (see page 4). Note: If a compatible probe other than an SDi probe is attached to the unit, the gauge will automatically detect this and display the message “Unrecognised Probe”. If this occurs press the “OK”...
  • Page 13 Note: If the message “No Probe connected” appears, either connect a suitable probe or simply press the “OK” button to enable the navigation of the menus without a probe fitted. No measurements can be taken if a probe is not detected. The Coating Plus+ feature is automatically switched off when the unit is turned off.

  • Page 14: Maintenance

    Never try to repair a probe or try to remove scratches from the face of the probe. This may result in further damage. Always return it to SDi for investigation and possible repair.

  • Page 15: Battery Care

    STEP 5: Refit the retaining ring (3) and secure it in place using the membrane key (5). STEP 6: Place a few drops of membrane oil (6) onto the face of the probe (4). Do not use too much. STEP 7: Screw the knurled ring (1) back onto the probe (4) whilst applying pressure on the membrane (2) with the thumb to expel any air from behind the membrane.

  • Page 16: Battery Replacement

    Battery Replacement You will need a small flathead screwdriver and three 1.5V AA batteries. STEP 1: Ensure the unit is off and turn the unit so that the front fascia faces downwards. STEP 2: Take a small, flat head screwdriver and unscrew the two screws holding down the hatch of the battery compartment.

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