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ZD730 Coating Thickness Gauge
  • ZD730 Coating Thickness Gauge

ZD730 Coating Thickness Gauge

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Overview

  The instrument adopts the magnetic and eddy current principle to measure in a non-destructive way .The instrument is a portable thickness-measuring meter, it can measure the thickness of coating and plating rapidly, non-destructively and precisely.It can be used both in lab and the work site.This instrument can be widely used in the inspection fields, e.g. manufacturing, metal processing, chemical industry and commodity inspection, etc.It is a gauge essential for the material protection.

The meter meets the following standards:

GB/T 4956─2003 Measuring Thickness of the Nonmagnetic Coating on a Magnetic Metallic Substrate, Magnetic 

GB/T 4957─2003 Measuring Thickness of all electrically insulating coating on nonferrous metals, Eddy current Way


Measuring Principle

The instrument adopts the magnetic and eddy current principle to measure in a non-destructive way

Magnetic way (type F probe)

measure the thickness of non-magnetic coatings on magnetic metallic base (e.g. zinc, aluminum, Cr. Copper, rubber, paint, coating on the base of steel, iron, alloy and hard magnetic steel etc.)

eddy current  way (type N probe)

measure all electrically insulating coating layers,such as lacquer,Varnish, paint,anodizing coating on nonferrous metals,also on austenitic VA steel materials.

 

 

 

Technical Specifications


Probe

F400

F1

F1/90°

F10

Measuring Principle

Magnetic method

Measuring range(mm)

0400

01250

010000

Min resolution(mm)

0.1

0.1

10

Tolerance

One-point calibration (mm)

±(3%H+0.7)

±(3%H+1)

±(3%H+10)

Two-point calibration (mm)

±(1%H+

0.7)

±((1%H+1)

±(1%H+10)

Minimum radius of curvature (convex) (mm)

1

1.5

flat

10

 Minimum measuring area(mm)

F3

F7

F7

F40

Minimum thickness ofbasematerial(mm)

0.2

0.5

0.5

2

 

















Type N probe 

Probe

N400

N1

CN02

Measuring Principle

Eddy current method

 Measuring range (mm)

0400

01250

10200

 Min resolution(mm)

0.1

0.1

1

Tolerance

 One-point calibration (mm)

±(3%H+0.7)

±(3%H+1.5)

±(3%H+1)

Two-point calibration (mm)

±(1%H+0.7)

±1%H+1.5

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Minimum radius of curvature (convex) (mm)

1.5

3

flat

Minimum measuring area(mm)

F4

F5

F7

Minimum thickness of base material(mm)

0.3

0.3

0