AMPROBE ST-102B GFCI Socket Tester Instruction Manual

AMPROBE ST-102B GFCI Socket Tester

EXPLANATION OF SYMBOLS

• Attention! Refer to Operating Instructions
• Consult user documentation.
• Canadian Standards Association. [Note: Canadian and US.]
• Do not dispose of this product as unsorted municipal waste

WARNINGS AND PRECAUTIONS

WARNING: Use extreme caution when testing live electrical circuits due to risk of injury from electric shock.

• For use on 110-125 VAC sockets only

• All appliances or equipment on the circuit being tested should be unplugged to help avoid erroneous readings

• Not a comprehensive diagnostic instrument but a simple instrument to detect nearly all probable common improper wiring conditions

• Refer all indicated problems to a qualified electrician

• Will not indicate quality of ground

• Will not detect 2 hot wires in circuit

• Will not detect a combination of defects

• Will not indicate reversal of grounded and grounding conductors

• Consult the GFCI manufacturer’s installation instructions to determine that the GFCI is installed in accordance with the manufacturer’s specifications

• Check for correct wiring of receptacle and all remotely connected receptacles on the branch circuit

• Operate the test button on the GFCI installed in the circuit. The GFCI must trip. If it does not – do not use the circuit -consult an electrician. If the GFCI does trip, reset the GFCI. Then, insert the GFCI tester into the receptacle to be tested.

• Activate the test button on the GFCI tester for a minimum of 6 seconds when testing the GFCI condition. An audible or visible indication on the GFCI tester must cease when tripped

• If the tester fails to trip the GFCI, it suggests:
  1) A wiring problem with a totally operable GFCI
  or
  2) Proper wiring with a faulty GFCI.
  Consult with an electrician to check the condition of the wiring and GFCI.”

• CAUTION: When testing GFCIs installed in 2-wire systems (no ground wire available), the tester may give a false indication that the GFCI is not functioning properly. If this occurs, recheck the operation of the GFCI using the test and reset buttons. The GFCI button test function will demonstrate proper operation.

Basic Instructions

1. Unplug all appliances and equipment on the circuit being tested for best results.
2. Plug the tester into the socket and note which indicators light.
3. Refer to the table to determine the wiring.

Before plugging the tester into a GFCI socket, trip the GFCI socket by pressing its TEST button. The GFCI should trip. If the GFCI does not trip the socket is faulty and should be replaced. After the GFCI trips, press the RESET button on the socket.
Plug in the GFCI socket tester and press the Black Test button on the tester for at least 6 seconds. LED indicator lights when GFCI testing is in progress. The GFCI should trip, shutting off the red and amber indicator lights. If the GFCI does not trip there is either a problem with the wiring of the socket or the socket itself. Consult an electrician to determine the problem.
Note: For use on 110-125 VAC sockets only. Does not indicate the quality of the ground. Will not detect 2 hot wires in circuit, two or more faults in combination, or reversal of grounded and grounding connectors.

5/2021, 6013929 B
©2021 Amprobe
All rights reserved. Printed in China

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