Coating Thickness Gauge Troubleshooting Techniques
1. The display is unstable
The cause of the unstable display of the coating thickness gauge is mainly due to the particularity of the material and structure of the workpiece itself, such as whether the workpiece itself is a magnetically permeable material. If it is a magnetically permeable material, we must choose a magnetic coating thickness gauge. , if the workpiece is a conductor, we have to choose an eddy current coating thickness gauge, and the surface roughness and attachments of the workpiece are also the reasons why the instrument shows no temperature. The surface roughness of the workpiece is too large and the surface attachments are too large. many. The main point of troubleshooting is to polish the workpiece with relatively large roughness to remove the attachment, and then choose a suitable coating thickness gauge.
2. There are too many errors in the measurement results
The reasons for the large measurement error of the coating thickness gauge have been introduced clearly in the previous article. Here we briefly introduce the main reasons for the large measurement error: the magnetization of the base metal, the thickness of the base metal is too small, the edge effect, workpiece curvature is too small, surface roughness is too large, the placement method of the magnetic field interference probe, etc. Newcomers can refer to the article of the instrument to familiarize themselves, we will not introduce them one by one.
3. Do not display numbers
The simple reason why the coating thickness gauge does not display numbers is to check whether the battery is fully charged, and if the measurement is found to be sufficient after confirming that the battery is fully charged, the value will not be displayed.
