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.

Two-year Warranty
Teledyne FLIR LLC warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of
shipment (a six-month limited warranty applies to sensors and cables). To view the full warranty text please visit:
http://www.extech.com/support/warranties.
Calibration and Repair Services
Teledyne FLIR LLC offers calibration and repair services for the Extech brand products we sell. We offer NIST traceable calibration for
most of our products. Contact us for information on calibration and repair availability, refer to the contact information below. Annual
calibrations should be performed to verify meter performance and accuracy. Product specifications are subject to change without notice.
Please visit our website for the most up-to-date product information: www.extech.com.
Contact Customer Support
Customer Support Telephone List: https://support.flir.com/contact
Calibration, Repair, and Returns: [email protected]
Technical Support: https://support.flir.com
Copyright ©2021 Teledyne FLIR LLC
All rights reserved including the right of reproduction in whole or in part in any form
www.extech.com