Model: VD7504GFI
OPERATING INSTRUCTIONS
Sperry Instruments - N85 W12545 Westbrook Crossing Menomonee Falls, WI USA 53051
Technical Support:
1-800-624-4320, press 2
4. Activate the test button on the GFCI tester for a minimum of 6 seconds when testing the GFCI condition. Visible
indication on the GFCI tester must cease when tripped.
5. If the tester fails to trip the GFCI, it suggests: a.) a wiring problem with a totally operable GFCI, or b.) proper wiring
with a faulty GFCI. Consult with an electrician to check the condition of the wiring and GFCI.
Caution:
GFCIs are sometimes installed in 2- wire systems (no ground wire available). This may or may not meet the
local code. This tester will not trip GFCI outlets installed without a ground wire. On two wire systems use the test and
reset buttons on the GFCI outlet to demonstrate proper operation. To detect which downstream outlets are protected
by the GFCI place the tester in these outlets and use the test and reset buttons. Watch for the LEDs on the tester to turn
off, this will indicate proper operation.
Non-Contact Voltage Detection Operation:
1. Before use test the battery
by pressing the black button at the NVC detection end. The LED will flash and the speaker
will chirp momentarily if the battery is good. If the indicators do not function or the chirp continually cycles, then replace
the battery.
2. To test for voltage press and hold the black button at the NVC detection end. Place the probe tip on or near the wire,
device or circuit to be tested. If AC voltage greater than 50 VAC is present the LED will flash and the speaker will chirp
continuously.
Battery Instructions:
Product comes complete with one LR44 BATTERY in package
To Install or Replace:
1) Orient the tester backside up, locate the battery compartment marked with the battery symbol secured with screw
2) Once battery compartment is located, use a small Phillips head screwdriver to remove screw & release battery cover
3) Remove the LR44 battery using caution to prevent damage or injury to the internal components
4) Place battery into tester as shown on the battery cover (Positive terminal facing toward the NCV end of the product)
5) Replace battery cover and screw
6) Test on known live circuit to verify tester functionality
NOTICE:
1. Static Electricity – The tester is subject to electrical static interference. If the LED or tone activate momentarily it is
detecting static electricity. When detecting voltage the LED and tone will cycle continuously.
2. NCV detection antennae interference – The presence of objects near the probe tip can decrease the sensitivity of the
tester. Keep your finger away from the LED lens and probe tip to ensure adequate detection range.
CAUTION:
REFER TO THIS MANUAL BEFORE USING THIS TESTER
DO NOT ATTEMPT TO REPAIR THIS TESTER. IT CONTAINS NO SERVICEABLE PARTS
Double Insulation:
The tester is protected throughout by double insulation or reinforced insulation.
Warning –
This product does not sense DC voltage or potentially hazardous voltages below 50 volts.
Warning –
To assure the unit is operating, always test on a known live circuit before use.
Warning –
This tester will not detect voltages in wires that are electrically shielded by metal conduit or
grounded electrical enclosures.