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6. Push and hold the Test Button. (Holding the test button will continue the test until the button is
released.)
7. With the Test Button pressed, turn the screwdriver until both the red and green lights are on. The
internal buzzer may sound at the calibration point.
8. Now, set the duration of the test. As shipped from the factory, the GF-30AC-T will only test while
the test button is pressed. By inserting the plastic calibration screwdriver into the potentiometer into
the potentiometer marked "DURATION", the test time can be set. A time of approx. 5 seconds is
recommended, subject to approval by safety agency inspection personnel.
Time Duration Adjustment
1.
Connect your GF-30AC-T Tester to a correctly rated source of supply and turn the power switch to
the I or ON position. The tester will perform a self-diagnostic test.
2.
Insert the plastic calibration screwdriver into the potentiometer behind the lower hole in the rear
panel marked "DURATION".
3.
Push and release the Test Button. The test duration is counted from the RELEASE of the Test
Button and is controlled by the setting of the DURATION control. Please note that if a manually
timed test is conducted, the test will continue for the amount of time set during this Procedure after
the Test Button is released. Therefore, we recommend that the Test Duration control be adjusted to
its minimum position when a manual test is conducted.
4.
Adjust the control with the calibration screwdriver until the desired test duration is set.
Operating Techniques
The following paragraphs describe how to operate your GF-30AC-T Tester. In the following sections,
EUT means Equipment Under Test.
Setting the Test Time Duration
1.
Set the test duration as shown in "Time Duration Adjustment" to ensure the production line test
will be done for the desired amount of time. A test time of 5 seconds is recommended, subject to
acceptance by safety agency inspection personnel.
Testing the EUT
This section describes how the Tester is used to conduct an actual test.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the tester.
NOTE
If the EUT uses a detachable power cord, use the Test Power Cord packed with the instrument, not
the EUT power cord. The accuracy of the test procedure depends on use of the same power cord
type for every test.
1. Connect your Tester to a correctly rated source of supply and turn the power switch to the I or ON
position. The tester will perform a self-diagnostic test. Make sure the buzzer sounds and the red
light is illuminated during this test.
Summary of Contents for GF-30AC-T
Page 1: ...GF 30AC T Ground Circuit Tester Instruction Manual...
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