There are many different brands of thickness measurement equipment on the market. From the perspective of the tested substrates, there are three types. The first type is for aluminum substrate only, the second type is for iron substrate only and the third type can be used for both iron and aluminum.
Customers often ask why there is no reaction when testing iron with a thickness measurement equipment. There are two reasons:
1.The thickness measurement equipment is specially designed for testing aluminum substrates, so there is no reaction when measuring iron. Customers can verify this problem through the user manual or with the manufacturer.
2.The thickness measurement equipment is used for both iron and aluminum, but if we have set the aluminum mode there will be no respond when testing iron.
Therefore, when purchasing a thickness measurement equipment, customers should understand whether the coating thickness meter can be used for both iron and aluminum or just single mode. It is generally recommended that customers choose a thickness measurement equipment which can be used for both iron and aluminum and can automatically identifies the substrate. For example, the Linshang LS220 thickness measurement equipment is an iron-aluminum dual-use instrument. In the auto mode, the conversion of different substrates can be realized quickly in 0.5 seconds. When testing non-metallic materials such as plastics, "non-metallic substrate" will also be indicated.
In order to avoid abnormal situations such as unresponsiveness during testing, it is recommended that customers choose a thickness measurement equipment which can be used for both iron and aluminum.