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2. For no-load tap-changer transformer, it is not allowed to switch tap-changer during
measurement.
3. If the power supply is suddenly cut off during the measurement, this opportunity will
automatically start discharging. Please do not dismantle the wiring immediately, and wait
for at least 30 seconds before dismantling the wiring.
4. When measuring, do not short-circuit other untested windings to ground, otherwise the
magnetization process of transformer will be slowed down, the data stabilization time will
be prolonged or the value is wrong.
5. Check the power supply voltage before starting: 220V + 10% AC, 50Hz.
6. Make sure that the equipment under test has been cut off and disconnected from other
live equipment during the test.
7. Shell must be grounded reliably during test.
8. No irrelevant items are allowed to be stacked on and around the equipment panel
during the test.
9. When replacing safety pipes and fittings, please use the same model as this
instrument (see technical specifications for details).
10. This instrument should be moisture-proof and oil-proof.
11. When choosing the current, we should refer to the range in the technical index column.
When exceeding the range, because the current can not reach the preset value, the
instrument has been in the "charging" state. At this time, we should press the reset key to
reset the instrument and re-select the smaller current gear.
IX.After-sales Services
Instrument from the date of purchase within one year, free maintenance of product
quality problems, lifelong maintenance and technical services. If you find any abnormal
condition or malfunction of the instrument, please contact the company in time, so as to
arrange the most convenient solution for you, and provide you with the fastest on-site
service.
