Handling of Coating Thickness Gauge Common Issues

May 29, 2023

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Handling of Coating Thickness Gauge Common Issues

 

1. What should I do if the instrument does not respond when it is turned on?
Answer: First check whether the battery is installed backwards; or consider whether the battery is out of power, if the battery still cannot be turned on after troubleshooting, you need to contact the manufacturer.


2. Normal startup, but no response to the test?
Answer: First of all, it is excluded whether the empty zero position is corrected, and the normal operation can be achieved by re-calibrating the zero.


3. Why is the measured value "inaccurate" when measuring the workpiece after calibration on the attached calibration test piece?
Answer: There are many factors that affect the measured value, which is described in detail in the instruction manual. The properties of metal materials, surface roughness, etc. all have an impact on the measured value. The base material that comes with the machine is often very different from the metal base material on the user's site. Therefore, we suggest that the base material and test piece provided with the machine are only used for instrument calibration, and the same material that has not been sprayed on site should be used as the base material when actually measuring the workpiece on site.


4. Why is it "not allowed" to measure curved surface materials such as pipes and bars?
Answer: The curvature change has a great influence on the coating thickness gauge. If you directly measure the curved surface after calibrating the zero point on the flat substrate, the measured value must be biased. The correct operation must be on the unpainted workpiece with the same curvature radius Zero point calibration is performed on the substrate, and then the coating thickness is measured, and the measured value at this time is accurate.


5. How to judge when there is a "deviation" when the instrument measures the test piece accurately and the coating of the workpiece is measured?
Answer: Some users may find that the measurement on the random matrix test piece is accurate during use, but there is a deviation in the measurement on the workpiece, or there is a deviation in the measurement of the same workpiece by instruments from different manufacturers. In this case, users often do not know the cause The problem with your own craft is still the problem of the instrument itself. This problem is easy to solve, we just need to put the test piece that comes with it on the user's own unpainted workpiece substrate to measure it, because the value of the test piece is constant. If the measurement of the test piece on the workpiece is also accurate, it means that there is nothing wrong with the instrument.

 

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