Compliance West HT-10KVDC, Instruction Manual

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with a buzzer. The Full Voltage, Hipot Fail and/or Excess Leakage, and red RESET lamps
should be lit.
With the exception of lamp replacement of the TEST and RESET buttons with type 73 14 volt
lamps, if the results of the performance test are not in accordance with the above, service is
required. Remove the Tester from service and contact the manufacturer for servicing
information.
Calibration Procedure
The Calibration Procedure should be used any time your instrument has been repaired or fails to
pass the performance test. The calibration procedure consists of the following:
•
The Voltage Calibration adjustment calibrates the voltage output to agree with the meter
reading.
Before starting the Calibration procedure, perform the Calibration access procedure given earlier
in this Section.
NOTE
Allow the instrument to stabilize for approximately five minutes. Perform all calibration
adjustments at an ambient temperature of 23
° C ± 5 ° C (73 ° F ± 9 ° F).
WARNING
CALIBRATION ADJUSTMENTS ARE PERFORMED ON ENERGIZED CIRCUITS.
EXERCISE CAUTION AT ALL TIMES, AND USE A NON-CONDUCTIVE TOOL FOR
ALL ADJUSTMENTS.
Meter Calibration Adjustment
Use the following procedure to calibrate the output voltage. Pot R326 is located on the lower
PWB, in the left front corner, and is used to adjust the meter reading.
1.
Ensure that all test leads are removed.
2. Connect the DMM between the red high voltage jack and the black return jack. Both jacks
are located on the front panel.
3.
Push the RESET, then the TEST Button on the front panel. Wait for the full voltage LED
on the front panel to light. Read the voltage on the DMM and compare it to the front panel
meter. Using a non-conductive screwdriver, adjust R326 to bring both meters into
agreement. If necessary, the Test Time control on the rear panel may need to be increased
to allow the test to continue for a sufficient time.