15
RAMP
TIMER
HIPOT
Result
ON
ON
ON
Fully automatic operation. When Test button is pressed, the output voltage will ramp at a rate
determined by the position of the TEST TIME adjustment knob. Test will stop automatically on
all leakage or breakdown failures.
DEFEAT
ON
ON
Voltage Ramp is defeated. Full voltage is produced at the output immediately. Test will stop
automatically on all leakage or breakdown failures. For safety, we recommend that you begin
testing with the front panel voltage knob set at minimum.
ON
DEFEAT
ON
Test Timer is defeated. After full voltage is reached, the test will continue only as long as the
Test button is held in, minimum one second. Test will stop automatically on all leakage or
breakdown failures.
DEFEAT
DEFEAT
ON
Full voltage is produced at the output immediately when the Test button is pressed. The test will
continue only as long as the Test button is held in, minimum one second. Test will stop
automatically on all leakage or breakdown failures. For safety, we recommend that you begin
testing with the front panel voltage knob set at minimum.
ON
ON
DEFEAT
Buzzer will turn sound, It will not allow to test until all the switches are in defeat.
DEFEAT
ON
DEFEAT
Buzzer will turn sound, It will not allow to test until all the switches are in defeat.
ON
DEFEAT
DEFEAT
Buzzer will turn sound, It will not allow to test until all the switches are in defeat.
DEFEAT
DEFEAT
DEFEAT
Full voltage is produced at the output immediately. Test will continue only as long as the TEST
button is held in, minimum one second. The HT-20KVPac will NOT shut down on a dielectric
failure, but the front panel Hipot Fail light will flash to indicate a dielectric breakdown. The
Hipot Pass light will not light at the completion of a successful test. For safety, we recommend,
that you begin testing with the front panel voltage knob set at minimum. For safety reasons,
excessive leakage current, as set by the Leakage knob, will cause the HT-20KVPac to shut down.
Table 4-3: Front Panel Switch Truth Table
