Routine Maintenance
• To prevent electrical shock, disconnect the instrument from AC
mains power and disconnect all test leads before cleaning.
• Do not use detergent or solvents.
• Do not disassemble the instrument and attempt to clean internally.
Clean the outside and the front panel screen of the instrument using a soft, lint-
free, cloth slightly dampened with water. Use a brush to clean the dust on the
vent and cooling fans.
7.3 Contact of ITECH Engineers
This section describes operations to be carried out by the user in case of failure
of the instrument.
Preparation before contact
When the instrument fails, you should make the following preparations before
returning the instrument to ITECH for repair or contacting engineers.
• Check all the items listed in the Self-inspection of equipment faults and con-
firm whether there are still some problems.
• Collect the SN of the instrument.
For details, see Collect the SN number.
If there are still some problems, carefully read the Warranty and Limitation of
Warranty in the preface of the manual. Confirm that your instrument complies
with warranty service conditions. If after your warranty expires, ITECH offers re-
pair services at competitive prices.
Self-inspection of equipment faults
When the instrument fails, make the following checks to ensure that the failure
is in the instrument rather than any external connections. If the instrument fail-
ure can be eliminated via simple inspection, the maintenance cost and time can
be saved.
• Check whether the AC power cord is securely connected to the instrument
and to a AC distribution panel.
• Check whether the front-panel Power On switch has been turned on.
• Check whether self-inspection of the instrument is successful and whether
the specifications and performance are within the indicator ranges.
Copyright © Itech Electronic Co., Ltd.
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