Convenient Coating Thickness Gauge

Probe Model	F400		F1/(F1/90)		F3	F10	N400		N1	N3
Working Principle	Magnetic Induction						Eddy Current
Measuring Range (μm)	0 – 400		0 – 1250		0 – 3000	0 – 10000	0 – 400		0 – 1250	0 – 3000
Low – limit Resolution (μm)	0.1				1	10	0.1			0.5
One – point Calibration (μm)	± 3%H + 1				± 3%H + 5	± 3%H + 10	± 3%H + 0.7		3%H + 1.5	3%H + 5
Two – point Calibration (μm)	± 3%H + 0.7		± 3%H + 0.7		± 3%H + 5	± 3%H + 10	± 3%H + 0.7		3%H + 1.5	3%H + 5
Minimum Radius of Curvature (mm)	bulge	0.1	1.5	Flat	5	10	bulge	1.5	3
Minimum Area Diameter (mm)	Φ3		Φ7		Φ20	Φ40	Φ4		Φ5
Critical Substrate Thickness (mm)	0.2		0.5		1	2	0.3

Coating Substrate		Non – magnetic organic material coatings (e.g., paint, lacquer, enamel, porcelain enamel, plastic, anodizing, etc.)		Non – magnetic non – ferrous metal coatings (e.g., chromium, zinc, aluminum, copper, tin, silver, etc.)
Coating Substrate		Coating thickness not exceeding 100μm	Coating thickness exceeding 100μm	Coating thickness not exceeding 100μm	Coating thickness exceeding 100μm
Ferromagnetic metals such as iron and steel	Measured area diameter greater than 30mm	F400 probe: 0 – 400μm F1 probe: 0 – 1250μm	F1 probe: 0 – 1250μm F3 probe: 0 – 3mm F10 probe: 0 – 10mm	F400 probe: 0 – 400μm	F400 probe: 0 – 400μm F1 probe: 0 – 1250μm F3 probe: 0 – 3mm F10 probe: 0 – 10mm
Ferromagnetic metals such as iron and steel	Measured area diameter less than 30mm	F400 probe: 0 – 400μm	F400 probe: 0 – 400μm F1 probe: 0 – 1250μm	F400 probe: 0 – 400μm F1 probe: 0 – 1250μm	F400 probe: 0 – 400μm F1 probe: 0 – 1250μm
Non – ferrous metals such as copper, aluminum, brass, zinc, tin	Measured area diameter greater than 5mm	N400 probe: 0 – 400μm	N400 probe: 0 – 400μm	Only for chromium plating on copper N400 probe: 0 – 40μm
	Measured area diameter less than 7mm	N400 probe: 0 – 400μm	N400 probe: 0 – 400μm N3 probe: 0 – 3μm N1 probe: 0 – 1250μm

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