The meaning of the letters on the coating thickness gauge is as follows
What is the difference between F, N and FN in coating thickness gauges? F stands for ferrous ferromagnetic substrate, F-type coating thickness gauges use the principle of electromagnetic induction to measure non-ferromagnetic coatings and plating on steel, iron and other ferromagnetic metal substrates, such as: lacquer, powder, plastics, rubber, synthetics, phosphating layer, chromium, zinc, lead, aluminium, tin, cadmium, porcelain, enamel, oxidation, etc. N stands for Non ferrous non-ferromagnetic substrate, N-type coating thickness gauges use the principle of eddy current; to measure enamel, rubber, paint, tin on a copper, aluminium, zinc, tin etc. substrate using eddy current sensors. - N stands for Non ferrous non-ferromagnetic substrate, N-type coating thickness gauge adopts eddy current principle; to measure the eddy current sensor to measure the copper, aluminium, zinc, tin and other substrates on the enamel, rubber, paint, plastic layer, etc. FN-type coating thickness gauge adopts the electromagnetic induction principle, as well as the eddy current principle, it is a two-in-one type of F-type and N-type coating thickness gauges. See above for uses. There is a F probe magnetic thickness gauge; FN refers to the magnetic and eddy current dual-use two-in-one coating thickness gauge with two probes. Function: Measure the thickness of non-conductive coatings on magnetically conductive objects and non-conductive coverings on non-magnetic metal substrates Application: Measure non-ferromagnetic coatings and plating on ferromagnetic metal substrates such as steel, iron, etc., with magnetic sensors, e.g., lacquers, powders, plastics, rubbers, synthetics, phosphating layers, chrome, zinc, lead, aluminium, tin, cadmium, porcelain, enamels, oxidation layers, etc. Measurement of enamel, rubber, paint, plastic layers on copper, aluminium, zinc, tin and other substrates with eddy current sensors. Widely used in manufacturing, metal processing industry, chemical industry, commodity inspection and other inspection fields.
