How to deal with common faults of coating thickness gauge
Coating thickness gauge is an indispensable testing instrument for controlling and guaranteeing products. It has the characteristics of small measurement error, high reliability, good stability, and easy operation. It is widely used in many fields. The coating thickness gauge will have certain faults during use. The following editor will introduce the common faults and treatment methods of the coating thickness gauge in detail, hoping to help everyone.
The display value is unstable.
The reason for the unstable display of the coating thickness gauge is mainly from the particularity of the material and structure of the workpiece itself, such as whether the workpiece itself is a magnetic material. If it is a magnetic 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.
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.
no numbers
The simplest reason why the coating thickness gauge does not display numbers is to check whether the battery is fully charged, and if it is found that the battery is fully charged, the measurement still does not display the value.
