9
Initial Checkout Procedure
Use this procedure to verify that the HT-20KVPac tester is working correctly. Refer to
table 4-1, figure 4-1 and table 4-2 for location of items.
CAUTION
High voltage, risk of shock, use with care.
1.
Turn the Tester on using the AC Power switch.
2.
Set the Voltage Ramp switch, Test Timer switch, and Failure Shutdown switch to ON
position.
3.
Disconnect leads from the Output and Return jacks.
4.
Set the Test Time to 30 seconds.
5.
Push the RESET button. The TEST button should light.
6.
Push the TEST button.
7.
The HT-20KVPac tester will conduct a test. The meter will read a voltage, hold, and return
to zero. During the test, the voltage can be adjusted using the Voltage Adjustment knob. At
the end of the test, the Full Voltage, Hipot Pass, and RESET switch indicators should be lit.
8.
Connect the red lead to the Output receptacle, and the black lead to the Return receptacle.
9.
Connect the two leads together to simulate a high leakage current condition. Push the RESET
button and then push the TEST button.
10.
Test should terminate immediately and the buzzer should sound. The Excess Leakage
Indicator and RESET button indicators should be lit. If a spark occurred, the Hipot Fail
indicator will also be lit.
11.
Leaving the red and black leads connected together, disconnect the red lead from the HT-
20KVPac.
12.
Enable the voltage output by pressing the RESET button, then the TEST button. When the
full voltage indicator lights, adjust the Voltage knob so the output is approx. 2500 volts. Press
the RESET button to disable high voltage output.
13.
Verify that the red and black leads are connected together, the black lead is connected to the
Return receptacle, and the red lead is disconnected from the HT-20KVPac.
14.
(This test simulates a dielectric breakdown. High voltage could exist on the alligator clips.
Exercise caution to avoid shock.) Push the RESET button, then the TEST button. After the
full voltage indicator lights, pick up the red lead and insert it into the HV Output. The test
will immediately terminate with a buzzer. The Full Voltage, Hipot Fail, and RESET button
indicators should be lit.
15.
Adjust the voltage and time to the desired settings
If any of these tests give unexpected results, service may be required. Please check the
test setup and if further information is needed, contact our Service hotline for assistance.
Setting up the HT-20KVPac for Laboratory Testing
