10
Initial Checkout Procedure
The following procedure will allow you to verify that the Tester is working correctly before use. The
only test equipment required is the unit itself, the 10 AWG Test Return Lead, the 14 AWG Test Cord,
and the alligator clip/wire assembly.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the
Tester.
1.
Connect your Tester to a correctly rated source of supply, remove any other test leads, and turn
the power switch to the I or ON position. The tester will perform a self-diagnostic test. Wait
until the red and/or green lights are both out before proceeding. Confirm that the blue test button
is illuminated. If it is not, check the source of supply.
2.
Plug the split end plug of the 10 AWG Test return lead into the Return Lead Receptacle of the
Tester.
3.
Plug the Test Power Cord into the Test Power Receptacle of the Tester. Attach the alligator
clip/wire assembly to the center lead of the IEC connector on the exposed end of the Test Power
Cord. Connect the two Test cords together.
4.
Push the Test Button. The GF-30AC-T should indicate a "Pass" by lighting the green light.
5.
Disconnect the Test leads from each other and carefully lay them on a non-conductive surface.
Push the Test button. The GF-30AC-T should indicate a "Fail" by lighting the red light and
sounding the internal buzzer.
If your Tester yielded the proper results, it is working properly. If it did not, call Compliance West USA
for assistance.
Adjusting the Pass/Fail Point
This adjustment allows the GF-30AC-T to compensate for the resistance of the cordset and test return
lead. If done properly, it allows the GF-30AC-T to measure only the resistance of the ground circuit of
the EUT, while compensating for cord resistance.
It is necessary to check the calibration point each time a different length or gauge Test Lead or Cord is
used, and every time the instrument is returned to service following an annual calibration. The 25 amp
output level is not adjustable. In the following Section, EUT means Equipment Under Test.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the Tester.
NOTE
The duty cycle of the rear-panel mounted calibration resistor is 20%, maximum 5 seconds on, let it
cool down for 15 seconds, to improve the duty cycle, mounting it to a big heatsink and using a fan
can at least double the dutty cycle ratings. Failure to adhere to this duty cycle may damage the
calibration resistor.
NOTE
This adjustment procedure sets the tester Pass/Fail indication point only. It does not take the place
of the required annual calibration required for the GF-30AC-T.
Summary of Contents for GF-30AC-T
Page 1: ...GF 30AC T Ground Circuit Tester Instruction Manual...
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