Routine Maintenance
6 Routine Maintenance
This chapter describes general maintenance items and maintenance methods
of the IT-M7700 series power source.
♦ Instrument Self-Test
♦ Cleaning and Maintenance
♦ Prompt Information Reference
♦ Contact of ITECH Engineers
♦ Return for Repair
6.1 Instrument Self-Test
Self-test checks that the minimum set of logic and power mesh systems are
functioning properly. Self-test does not enable the output or place any voltages
on the output. Self-test can be achieved in two ways:
• Re-start the instrument. Each time the instrument is powered on, the selftest
is performed. This test assumes that the instrument is running.
• SCPI command: *TST?. If the return value is 0, the self-test passes; if it is 1,
the self-test fails. If the self-test fails, please send command SYSTem:ER-
Ror? to view the self-test error. Please refer to IT-M7700 Programming
Guide for the list of error codes.
6.2 Cleaning and Maintenance
To ensure the safety function and performance of the instrument, please clean
and maintain the instrument properly.
• 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.
Copyright © Itech Electronic Co., Ltd.
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