Extech Instruments ET10 - User Manual

USER MANUAL
Model ET10
GFCI Receptacle Tester
Standard Receptacle
1. Always test on a known good circuit before use.
2. Refer all indicated problems to a qualified electrician.
3. Lights will indicate circuit condition: Correct, Open Ground, Open Neutral, Open Hot, Hot/Ground Reversed, or Hot/Neutral Reversed.
4. The tester will not indicate the quality of the ground connection, 2 hot wires in a circuit, a combination of defects, a combination of defects, or reversal of ground and
neutral conductors.
GFCI Receptacle
1. Before using the tester, press the TEST button on the installed GFCI receptacle, the GFCI should trip. If it does not, do not use the circuit and call a qualified electrician. If it
does trip, press the RESET button on the receptacle and plug in the tester.
2. Verify that the wiring is correct.
3. Press and hold the test button on the tester for at least 6 seconds, the indicator lights on the tester will shut off when the GFCI trips.
4. If the circuit does not trip, either the GFCI is operable but the wiring is incorrect, or the wiring is correct and the GFCI is inoperable.
5. When testing a GFCI installed in a 2-wire (non-grounded) system, the tester may indicate a faulty GFCI. If this occurs, press the TEST and RESET buttons on the GFCI to
determine proper operation.
6. GFCI test current is 6~9mA.

Summary

GFCI Receptacle Tester Operation

Standard Receptacle Testing

Explains how to test standard receptacles, listing conditions and tester limitations.

GFCI Receptacle Testing Procedure

Details the steps for testing GFCI receptacles, including pre-testing and tester usage.

Tester Indicator Lights

Lists the visual indicators on the tester and their corresponding wiring faults or correct wiring.

Product Support and Warranty

Two-year Warranty Policy

Details the two-year warranty for Extech instruments, including sensor/cable limitations.

Calibration and Repair Services

Describes Extech's NIST traceable calibration and repair services for its products.

Contacting Customer Support

Provides contact information for customer support, technical assistance, and repair/returns.

Extech Instruments ET10 Specifications