This is a user manual introducing the features of Extech Instruments CG104 Coating Thickness Tester. The meter uses two measurement methods: magnetic induction (for ferrous metal substrates) and eddy current (for non-ferrous metal substrates).
The Extech CG104 is a portable coating thickness tester designed for non-invasive measurements on ferrous and non-ferrous metal substrates. It supports two measurement methods: magnetic induction and eddy current. The device includes features like LED backlighting, auto power-off, zero and two-point calibration, datalogging, and high-low alarm alerts. It is shipped calibrated and ready for use with detailed instructions for setup, calibration, and operation.
Safety precautions are outlined to avoid electromagnetic interference, condensation, and exposure to corrosive environments. The manual includes step-by-step instructions for zeroing, calibration, recording measurements, and setting alarm thresholds. Users are advised to perform substrate-specific zero and two-point calibrations for accurate results.
| Measurement Methods | Magnetic Induction and Eddy Current |
|---|---|
| Auto Power OFF | 30 seconds of inactivity |
| Calibration Range | 0 to 1100μm (0 to 39.6 mils) |
| Alarm Range | 0 to 2000μm (0 to 78.8 mils) |
| Measurement Units | Mils or Microns |
The CG104 supports magnetic induction for ferrous metal substrates and eddy current for non-ferrous metal substrates.
Perform a two-point calibration using an uncoated substrate and a 1006 μm reference film, or two reference films of known thickness.
The alarm range is 0 to 2000μm (0 to 78.8 mils).
The device auto powers off after 30 seconds of inactivity.