Compliance West HT-10KVDC, Instruction Manual

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Section 5
Maintenance and Calibration
WARNING
THESE SERVICE INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL
ONLY. TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING
OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS
YOU ARE QUALIFIED TO DO SO.
This section of the manual contains maintenance information for the Model HT-10KVDC
Dielectric Withstand Tester. This maintenance information is divided into service information,
general maintenance, a performance test, and a calibration procedure. The performance test is
recommended as an acceptance test when the instrument is first received, and later as a
preventative maintenance tool to verify proper instrument operation. A 1-year calibration cycle
is recommended to maintain the specifications given in Section 1.
No test equipment is required to conduct the performance test.
The test equipment required for the calibration procedure is a DMM able to read true rms
0-14000 Vdc
±
1%.
Service Information
The HT-10KVDC is warranted to the original purchaser for a period of 1 year. This warranty
does not cover problems due to misuse or neglect.
Malfunctions which occur within the limits of the warranty will be corrected at no charge. Mail
the instrument post paid to the manufacturer. Dated proof of purchase is required for all in-
warranty repairs.
The manufacturer is also available for calibration and / or repair of instruments that are beyond
their warranty period. Contact the manufacturer for a cost quotation. Ship the instrument and
your remittance according to the instructions given by the manufacturer.
General Maintenance
Calibration Access
Use the following procedures to gain access to the calibration adjustments of your instrument.
1. Set Line Power switch to OFF.
2. Disconnect the power cord from the rear of the instrument.
3. Remove the two upper screws on each side of the unit.
4. Grasp the top of the enclosure clamshell and lift it off the front and rear panels.
5. All calibration adjustments are now accessible.
WARNING
Dangerous voltages exist when energized. Exercise extreme care when working on an
energized circuit.