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Amprobe ST-102B User Manual

Amprobe ST-102B
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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.
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.
ST-102B GFCI Socket Tester
Safety Information
May 2021© Amprobe Test Tools. All rights reserved.
WARNINGS AND PRECAUTIONS
WARNING: Use extreme caution when testing live electrical
circuits due to risk of injury from electric shock.
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
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Amprobe ST-102B Specifications

General IconGeneral
BrandAmprobe
ModelST-102B
CategoryTest Equipment
LanguageEnglish

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