20
13. Connect the green alligator of the
J3
lead to the alligator clip of the
GL
return
lead (make
a short circuit between the return and the grounding jack).
WARNING:
The RED alligator clip of the
J3
connector is connected directly to the high
voltage of the HT-PR, maintain a clear space for placing this connector.
14. Press the offset ground button in the rear panel of the tester, release the button and wait
until the tester shows the resistance value.
15. Set the Resistance setting to 1.50
Ω
.
16. Push the red
RESET
button and then the yellow
TEST
button.
17. The tester should conduct a test sequence. At test termination, the
Ground OK
,
Full
Voltage
,
Hipot Pass
, and Red
RESET
LED’s should be lit, see figure 6 test result C.
18. Disconnect the
J3
Green alligator clip from the
GL return
lead and Turn the
Ground
Check
switch on the rear panel to the OFF position.
19. Connect the RED alligator clip of the
J3
to the Green alligator clip of the
GL return
lead.
Keep clear of the wire while the test is in progress
.
20. Push the red
RESET
button and then push the yellow
TEST
button.
21. The tester should conduct a test sequence, terminated with a buzzer. At test termination,
the
Ground OK
,
Ground Open
,
Excess Leakage
, and red
RESET
LED’s should be lit,
see figure 6 test result D.
WARNING
:
The following procedure tests the "Hipot Breakdown" circuit of the
HT-PR and involves high voltage. The only exposed parts during this test are at
ground potential. However, the voltage inside the High Voltage Device socket may
be as much as 2000 Volts AC or 2800 Volts DC. Proceed with caution, is highly
recommended to use the
HTT-1
instead of this procedure for test the Hipot
Breakdown.
22. Make sure the black lead is still plugged into the
RETURN
jack on the front panel.
23. Make sure the
Ground Check
switch on the rear panel is in the
OFF
position.
24. With the
J3
connected to the HT-PR, on a clear area place the RED alligator clip of the
J3
very close (1 mm or less, should not touch each other) to the GREEN alligator clip of the
GL return
lead, stay away from that connection, press the
RESET
button and then the
START
button on the HT-PR.
25. The test should immediately terminate with a buzzer. The
Ground OK
,
Ground Open
,
Full Voltage
,
Hipot Fail
and red
RESET
LED’s should be lit, the
FULL VOLTAGE
led
may or may not be lit. See figure 6 test result E.
Summary of Contents for HT-2000PR
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