Thickness Tester

Doryang 221 Coating Thickness Gauge

Product description: Coating Thickness Gauge Dor Yang 221 The coating thickness gauge is widely used in various inspection fields such as electroplating, corrosion protection, aerospace, aviation, chemical industry, autom
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Coating Thickness Gauge Dor Yang 221

The coating thickness gauge is widely used in various inspection fields such as electroplating, corrosion protection, aerospace, aviation, chemical industry, automotive, shipbuilding, light industry, and commercial inspection. It is suitable for both laboratory and on-site engineering applications. With different probe configurations, it is adaptable to various scenarios, making it an essential instrument in the non-destructive testing industry.

Main Functions:

This instrument uses the eddy current measurement method to non-destructively measure the thickness of non-conductive insulating coatings on non-magnetic metal substrates (such as rubber, plastic, paint, and oxide films on aluminum, copper, zinc, and tin).

Full Chinese menu
Two measurement modes
Two working modes
Stores up to 500 measurement values
Data deletion function
Settable limits
Automatic alarm for values exceeding limits
Low battery warning
Manual and automatic shutdown modes

Technical Specifications:

Parameter	Specification
Model	Dor Yang 221
Probe Type	N1
Working Principle	Eddy Current
Measurement Range	0–1250μm
Minimum Resolution	0.1μm
Accuracy	Single-point calibration: ±(3%H+1)
	Two-point calibration: ±[(1–3%)H+1]
Test Conditions
Minimum Curvature Radius (mm)	Convex 1.5, Concave 9
Minimum Measurable Area (mm)	Φ7
Base Material Critical Thickness (mm)	0.5
Operating Environment
Temperature	0–40℃
Humidity	20%–90%
Power Supply	2 × AAA alkaline batteries (1.5V)
Dimensions (mm)	150 × 55.5 × 23 (main unit)
Weight	F1/165g, N1/205g