GFCI Test
To test a GFCI:
1.
Before you plug the Product into a GFCI socket, push the GFCI test button to trip the
GFCI socket. If the GFCI does not trip, the socket is faulty and should be replaced.
2.
After the GFCI trips, push the RESET button on the outlet.
3.
Plug in the Product and push the blue GFCI test button on the Product for a minimum
of 6 seconds. As you push the Product GFCI button, but before the GFCI trips, the LED
to the left of the Product GFCI button briefly turns on. Once the GFCI trips, all of the
LEDs on the Product go out. If the GFCI does not trip, or if any of the LEDs on the
Product remain on, there is a problem with the wiring of the socket, the socket itself, or
the Product. Consult an electrician to determine the problem.
Beeper (ST120+ only)
The ST120+ includes a switchable beeper that emits a tone when voltage is present on the
Product and the beeper is switched on. To switch off the beeper, slide the beeper switch to
the left position.
Contact Fluke
Fluke Corporation operates worldwide. For local contact information, go to our website:
www.fluke.com
To register your product, view, print, or download the latest manual or manual supplement,
go to our website.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
+1-425-446-5500
