Compliance West GFM-40ac, Инструкция по эксплуатации

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11
Section 3
Maintenance
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.
Introduction
This section of the manual contains maintenance
information for the Model GFM-40ac High
Current Ground Tester. This maintenance
information is divided into service information,
general maintenance, a performance test, a
calibration procedure, and a troubleshooting
procedure. The performance test is
recommended as an acceptance test when the
instrument is first received, and later as a
preventative maintence tool to verify proper
instrument operation. A 1-year calibration cycle
is recommended to maintain the specifications
given in Section 1. The Test equipment required
for both the performance test and calibration
procedure is a DMM able to read true rms 0-
4VAC
±
1%.
Service Information
The GFM-40ac is warranted to the original
purchaser for a period of 1 year . The 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 Information
Interior Access
NOTE
To avoid contaminating the PWB with
oil from your fingers, handle it by the
edges or wear gloves. If the PWB
becomes contaminated, refer to the
cleaning procedures given later in this
section.
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.