Datasheet

PRODUCT DATASHEET PRODUCT DATASHEET

CG304 Coating Thickness

Tester with Bluetooth

Extech’s CG304 offers a non-destructive way of measuring

the thickness of ferrous and non-ferrous substrates with auto

recognition of the material being measured. Unique Bluetooth

interface feature wirelessly transmits measurement data to your

PC for further analysis and to generate a documented report.

Features

• Dual Technology provides automatic recognition of

ferrous and non-ferrous substrates

• Magnetic induction for ferrous substrates

• Eddy current measurement for non-ferrous substrates

• Easy-to use menu system

• Dot matrix LCD display with backlight and contrast

• Memory stores 2500 readings in 50 groups with

50 readings in each group

• Zero-point calibration function

• Bluetooth interface includes software

• Complete with two AAA batteries, software, hard case,

Steel and Aluminum substrates, and standard ﬁ lms for

calibration

Ordering

CG304 .............. Coating Thickness Tester

CG304-REF ....... Calibration References

www.extech.com

Rev. 6/24/14

Speciﬁ cations

Ferrous Non-Ferrous

Working Principle Magnetic Induction Eddy Current

Measuring Range 0 to 2000μm 0 to 2000μm

0 to 78.7mils 0 to 78.7mils

Accuracy ±(2%+2μm) ±(2%+2μm)

±3.5% (1000 to 2000μm) ±3.5% (1000 to 2000μm)

Resolution 0.1μm (0.01mils) 0.1μm (0.01mils)

Minimum Curvature Radius 1.5mm (59.06mils) 3mm (118.1mils)

Minimum Diameter 7mm (275.6mils) 5mm (196.9mils)

Minimum Thickness 0.5mm (19.69mils) 0.3mm (11.81mils)

Dimensions /Weight 4.7 x 2.4 x 1.25” (120 x 62 x 32mm)/6.17oz (175g)

CG304-REF

Applications:

- Automotive paint thickness to determine if car has been in an accident before

- Quality inspection and monitoring of the process of anodizing or galvanizing

- Suitable for paint manufacturers, painting inspectors, painters, and anti-corrosion

painting contractors

- Machine tools manufacturers, pipeline industry, and aeronautical industry