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Model: HGT6520
OPERATING INSTRUCTIONS
Sperry Instruments - N85 W12545 Westbrook Crossing Menomonee Falls, WI USA 53051
Technical Support:
1-800-624-4320, press 2
www.sperryinstruments.com
Before Use:
READ ALL OPERATING INSTRUCTIONS BEFORE USE.
Use extreme caution when checking electrical circuits to avoid
injury due to electric shock. Sperry Instruments assumes basic knowledge of electricity on the part of the user and is not
responsible for any injury or damages due to improper use of this tester.
OBSERVE AND FOLLOW
all standard industry safety rules and electrical codes. When necessary call a qualified
electrician to troubleshoot and repair the defective electrical circuit.
Specifications:
Operating Range
: 115 – 125 VAC, 60 Hz;
Certifications and compliance
: Conforms to UL 1436,
Indicators:
Visual Only
Operating Environment
: 32° - 90° F (0 - 32° C)
80% RH max., 50% RH above 30° C Altitude up to 2000 meters. Indoor use. Pollution degree 2. Accordance with IED-664.
Cleaning:
Remove grease and grime with clean, dry cloth.
Outlet Circuit Tester Operation:
1. Plug the tester into any 120 Volt standard or GFCI outlet.
2. Only a single LED should illuminate
3. The text adjacent to the lit LED will indicated the wiring condition.
4. If no LED illuminates then the hot is open
5. If the tester indicates a wiring problem then turn off all power to the outlet and repair wiring.
6. Restore power to the outlet and repeat steps 1-3
NOTICE:
1. All appliances or equipment on the circuit being tested should be unplugged to help avoid erroneous readings.
2. Not a comprehensive diagnostic instrument but a simple instrument to detect nearly all probable common improper
wiring conditions.
3. Refer all indicated problems to a qualified electrician.
4. Will not detect two hot wires in a circuit.
5. Will not detect a combination of defects.
6. Will not indicate a reversal of grounded and grounding conductors.
TO TEST GFCI PROTECTED OUTLETS:
1. To test GFCI (Ground Fault Circuit Interrupter) protected circuits plug tester into GFCI protected outlet. View the LED
indicators to verify that the power is on and that the outlet is wired properly.
2. Press the GFCI test button.
3. If circuit is wired properly the main GFCI outlet should trip and power to the circuit will be cut off (this is indicated by
the LED lights on the tester going off).
GROUND RESISTANCE TEST:
The unit automatically tests circuits for proper ground wiring. If the resistance of the ground wiring is greater than ~10
Ohms then the red indicator adjacent “Bad Ground” will illuminate indicating a bad ground.