Extech Instruments CG104 User Manual

User Manual

Coating Thickness Tester

Model CG104

Additional User Manual Translations available at www.extech.com

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Introduction

Thank you for selecting the Extech Instruments CG104 Coating Thickness Tester. The CG104 is a
portable meter designed for non-invasive coating thickness measurements with automatic
recognition of the material under test.

The meter uses two measurement methods: magnetic induction (for ferrous metal substrates)
and eddy current (for non-ferrous metal substrates).

This device is shipped fully tested and calibrated and, with proper use, will provide years of
reliable service. Please visit our website (www.extech.com) to check for the latest version of this
User Guide, Product Updates, Product Registration, and Customer Support.

Features

• LED backlighting

• Reversible LCD orientation

• Auto Power OFF

• Low-Battery Indication

• Zero Function and Two-Point Calibration

• Datalogging function

• High-Low Alarm Alerts

• Selectable Measurement Units

• Supplied Zero and Standard Coating Substrates

Description

Meter Description

1. Ferrous/non-ferrous or auto (AT) indicator

2. Unit of measure

3. Measurement reading

4. MENU / Return button

5. Down arrow button

6. ZERO / CLEAR button

7. Backlight and Reverse Display arrow button

8. Escape / Delete button

9. Up Arrow button

10. Sensor

Note: Battery compartment on rear of meter

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Function Keys

Access the Menu / Enter for confirming an edit

Reverse the display orientation/ press > 2 seconds for Backlight

Revert to previous mode / Delete an entry

Selecting functions, scrolling and setting values

Substrate Zero CAL (short press) / Calibration point clear (press > 2 secs.)

Function Key Notes:

ESC and Arrow keys are disabled in the Measurement mode

Backlight and ZERO buttons are disabled in the ‘Options’ menu

Display Icon Description

Fe, nFe Ferrous and Non-ferrous substrates

AT Auto metal sensing mode

▲▼ High-Low Alarm indicators

MEM MIN-MAX-AVG Recording is active

CAL Calibration is active

µm Micrometer unit of measure

mils mils (unit of measure) = millimeters * 2.54/100

MAX-MIN Maximum minus Minimum reading

MIN, MAX, AVG Minimum, Maximum, or Average reading

n Recalled data point storage serial number

Low battery

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