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Chapter 10 Maintenance Guide
10.1 Routine maintenance
1. The tester should be used in a well-ventilated, dry, dust-free, and strong
electromagnetic interference environment.
2. If the tester is not used for a long time, it should be powered on periodically. It is
usually powered on once a month for at least 30 minutes.
3．After the tester works for a long time (8 hours), the power should be turned off for
more than 10 minutes to keep the tester in good working condition.
4． After long-term use of the test leads, poor contact or open circuit may occur, it
should be regularly repaired.
10.2 Simple troubleshooting
After booting, there is no
display and the buttons do not
respond
Please check whether the power supply is
normal and whether the fuse on the rear
panel is blown. If it is blown, replace the
fuse.
After starting, the high-voltage
indicator is off, but there is test
voltage
The high voltage indicator is broken.
The alarm indicator is off after
the test fails
Alarm indicator is broken
After starting, the voltage is
normal but no current output
Please check whether the test lead is
open, the measured object is not in good
contact, or the measured object is open.
If any fault cannot be removed in time, please contact our company or Hoptech's
authorized distributor as soon as possible for further support.
10.3 Quality Assurance
We guarantees that the products manufactured by Hopetech are subject to strict
quality confirmation. The factory quality guarantee period for products is two years.
Product manufacturing defects or failures during this period will be repaired free of
charge.
For users who modify the circuit, function by themselves or beyond quality warranty
period, the maintenance fee will be charged according to the actual situation.
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