Coating thickness gauge

PhaseIICoating thickness gaugePTG-3500 has two different measurement methods, which use eddy current and magnetic induction principles to measure thickness

Non destructive measurement and its

This thickness gauge allows you to conveniently measure the thickness of non-magnetic coatings on magnetic substrates or non-conductive coatings on non-magnetic substrates by using an integrated built-in probe or a separate external probe,

The PTG-3500 of Phase II brand has been applied in multiple industries including manufacturing, general engineering, inspection, and more

Technical Specifications

• Measurement range: 0-1000 µ m

• The resolution measurement value is 0.1 µ m between 0-99 µ m; when the measurement value is ≥ 100 µ m, it is 1 µ m

• Accuracy of indication:+/-1-3% n or ± 2 µ m after one point calibration Display screen type: 4-digit LCD

• Small measurement area 5mm x 5mm

• Small curvature radius: convex surface is 3mm, concave surface is 30mm, small substrate thickness: iron substrate is 0.5mm, non-ferrous substrate is 50mm. Ji calibration: zero point calibration and random specimen calibration. Surface temperature of the tested object: 150 ℃ (contact time is 2 seconds). Power supply: 4 AA batteries

• 尺寸形状 161 x 69 x 32mm

• Weight: (260g)

The PTG-3500 uses an integrated probe to automatically measure magnetic or non-magnetic substrates, and is randomly equipped with 2 standard substrates (iron aluminum), 4 calibrated thickness test pieces, a portable battery, and an instruction manual

Coating thickness gaugeOther applications include measuring the paint thickness of steel or aluminum shells for cars, trucks, and tractors

Measurement principle of non-destructive testing thickness

1)Principle of Electromagnetic Induction

The PHASE II PTG series utilizes non-destructive measurement principles to measure coatings on magnetic substrates, such as iron and steel The coating must be non-magnetic, such as paint, ceramics, aluminum chromium alloy, copper brass

2)Principle of eddy current
The Phase II PTG series thickness gauge uses non-destructive testing principles to measure coatings on non-magnetic substrates, such as aluminum aluminum alloy bronze, copper, brass tin rust resistant magnetic steel coatings that must be non-conductive, such as paint, enamel plastic anodized layers, and ceramicsCalibration steps

Before leaving the factory, all PTG series thickness gauges are inspected and calibrated using a 2-point calibration method

1) OnePoint calibrationThis process is accomplished by machine zeroing on uncoated samples To complete the calibration steps, please refer to the methods mentioned in the manual Although this calibration method is comparative, it is not as good as two-point calibration

2) OnePoint calibrationTwo point calibration is completed through the following steps Zero the machine on a randomly provided iron or aluminum substrate, then place the random test piece on the substrate to calibrate the machine, making the machine's reading close to the known thickness of the test piece Use samples with a thickness close to the known workpiece for calibration Very simple, there are detailed instructions in our manual Using two-point calibration is the method, and we also use the same method to calibrate our machine before it leaves the factory.

3)Calibration frequencyOnce the PTG series thickness gauge is calibrated, the technical parameters will be stored and the calibration steps do not need to be repeated After countless uses or leaving unused for a few days, we recommend using the previously calibrated machine's substrate and test piece to recheck the degree