1. The difference between LS220 and LS220B car paint meter?
The Bluetooth automotive paint meter LS220B has mobile phone APP. The instrument can be connected to the mobile phone APP through Bluetooth and record test data, while the conventional automotive paint meter LS220 has this function.
2. The difference between LS220 and LS235 car paint meter?
LS220 and LS235 car paint meter both can identify metallic puttty and iron galvanized car body. When discovered metallic putty, the screen of LS235 will turn red while turns green recognizing iron galvanized car body.
3. How to judge whether the car has been repainted or not?
At present, the paint thickness of different brands of cars on the market is not exactly the same. Therefore, when measuring the paint film thickness of a certain car, you can first measure the paint thickness on the car roof, because car roof is rarely affected by external forces and scratches, dents or deformation, it is more likely to retain the original paint thickness.
To test the specfic position of the car, you can take the upper, lower, left, right, and middle five points to test and calculate the average value of the five data. If the value of one point is greater than the average value of more than 30μm, this position may have been repainted.
4. Under what circumstances we need to make zero adjustment?