How to Correctly Use a Coating Thickness Gauge
How to use the coating thickness gauge correctly: 1. When we use the coating thickness gauge, we often have customers say that our instrument's measurement is inaccurate. In fact, this is not the case. The main reason is that they did not read the user manual in detail before use. This is why we repeatedly emphasize that customers should carefully read the corresponding operating manual of the thickness gauge before use. At the same time, we have also made the following summary based on customer feedback:
Why are there significant differences in the data measured by coating thickness gauges calibrated by metrology and testing research institutes during actual use?
This is also a common problem encountered. Generally, there are two types of customers who buy thickness gauges: one is for production expansion and the need to increase the number of thickness gauges, and the other is for product demand and the purchase of new coating thickness gauge equipment. The situation we encountered is mainly aimed at customers, because the newly purchased thickness gauge and the previously used thickness gauge may not be of the same model,
The reason for such a problem is that the base point and standard plate used for calibration of the coating thickness gauge are different before measurement. In order to maintain consistency, the coating thickness gauge should use the same calibrated zero point substrate for zero point calibration, and also use the same standard plastic film to calibrate on the same calibration substrate. This way, the measurement data of the coating thickness gauge will be unified.
Why is the data measured by the coating thickness gauge calibrated by the National Institute of Metrology and Testing still inaccurate in actual use?
Generally speaking, customers believe that the product has been nationally certified, and the validity period is usually one year. During this year, there should be no problem with use. However, in actual use, calibration must be done before each use. If this is not done, there will be an error of 3-10% in the measurement results over a long period of time. If the measurement value is relatively large, there will be no feeling. As soon as the measurement value is small, problems will arise. For example, if the thickness of the customer's product sprayed is 60 microns (assuming the actual value is also 60 microns), and we measure 40 microns of the value, the error will become 20 microns, which is quite obvious, and we will feel that the instrument is inaccurate. Therefore, we calibrate before each use. This step is necessary, and we suggest that the identification cycle of the coating thickness gauge is generally one year.
