Thickness Gages

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Precision and Corrosion Thickness Gages

Techequip are the leading source of thickness gages for the accurate measurement of nearly any material in Australia. Thickness gages include a wide range of features available for enhanced gage performance. Ultrasonic thickness gauges listen for echoes and measure virtually any material such as plastics, metals, and internally corroded materials. Measurement of extruded plastics and rolled metals is possible as is measurement of individual coatings in multilayer materials.

Magnetic Induction Principle utilizes this non-destructive principle when measuring coatings on ferro-magnetic substrates such as Steel and Iron. The coatings must be non-magnetic such as; paint, enamel, aluminium, chrome, copper and brass.

Eddy-Current Principle utilize this non-destructive principle when measuring coatings on non-magnetic substrates such as; Aluminium, Aluminium Alloys, bronze, copper, brass tin and rustproof weak magnetic steels. The coatings must be electrically insulating such as; paint, enamel, plastics, anodized coatings and ceramics.

Calibration Procedures

NOTE: ...
... All PTG series Coating Thickness Gages are inspected and calibrated using the Two-Point Calibratiuon procedure prior to shipment.

One-Point Calibration is accomplished by “Zeroing” the gage on an uncoated version of the sample that you will be checking the coating thickness on. To accomplish this calibration, you will need to follow the simple calibration procedure that is explained in the operation manual. Although this is an accurate method for calibration, it is not as accurate as using the two point calibration.

Two-Point Calibration is accomplished by “zeroing” the gage on one of the supplied substrate samples (steel/aluminium) and then placing one of the calibrated “foils” on that substrate and calibrating the gage to match the known thickness of the foils. It is best to use the foil that is closest to the actual known thickness of your own samples to be tested. This is a very simple procedure that is explained in the operation manual. By using the two-point calibration procedure, you are making sure that the gage will be at its most accurate when testing your own coated samples. This is the same method used to calibrate every gage prior to shipment.

Frequency of Calibration: Once the PTG series of Coating Thickness Gages have been calibrated, the parameters are saved in the memory and the calibration procedure does not need to be repeated.

We do recommend that after numerous hours of operation or if the gage has not been used for a few days you should check the accuracy using the same calibrated substrate/foil combination previously used to calibrate the gage.

Techequip are the leading source of thickness gages for the accurate measurement of nearly any material in Australia. For more details on Thickness Gauge and Thickness Meter than please visit our website.