Common error handling of high precision coating thickness gauges
Common errors in high-precision coating thickness gauges are concentrated on two points, one is zero adjusting on the coated metal and the other is not zeroing after changing the type of material being measured.
One of the most prominent features of the high-precision coating thickness gauge is its high precision, but no matter how high the accuracy is, once the operation is wrong, the result of the instrument test is definitely not accurate.
Common error 1: Zero adjusting on a coated metal
This is a mistake that many people will have. Many metals seem to be naked, but in fact they may be coated with a rust-proof and anti-corrosive paint coating, but the coating is thin or the color is colorless, so it seems there is no coating. Once the high-precision coating thickness gauge is used to zero adjusting on this metal, and then use this gauge to measure the other materials, the following interface may appear, and the instrument test is incorrect.
Common error 2: Direct measurement after the material or temperature change without zero adjustment
This is another common mistakes that many people will occur. Although the high-precision coating thickness gauge is used for both iron and aluminum, it can measure the thickness of non-magnetic coating on magnetic metal substrates such as steel, and can also measure the non-conductive coating on the non-magnetic metal substrate such as copper and aluminum. However, the magnetic and conductive properties of the material are different, which may cause certain measurement errors. In order to reduce the measurement error and make the data more precise, it is recommended to use the corresponding zero-adjusting plate or the uncoated original substrate for zero adjustment after replacing the test material. Many users ignore this operation when they use it, so the data tested is not accurate enough.
The Linshang LS220 high-precision coating thickness gauge is equipped with iron zero-adjusting plate and non-ferrous zero-adjusting plate at the factory to ensure the accuracy of the measured data.
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