UNI-T UT528, Руководство по эксплуатации

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Please note: when testing Surge Protected Extension Leads this test may fail.
This is normal and a result of circuitry within the surge protection device.
3. Polarity Test
The polarity test is the final test to be carried out and will check that the cord
or extension is wired correctly. It will check for open circuit, short circuit or
Line / Neutral reversal.
If the Polarity is correct then the meter will display “
√ Good”
If the Polarity test detects a fault, the meter will display “× Cross” or “× Open”
4.
Overall Result
After the above measurements are completed, the meter will indicate
whether the measured appliance is compliant with the requirements of
cord testing with “PASS” or “FAIL”
Testing a Surge Protected Extension Lead or Appliance
When you press and hold the Class II appliance button for 5 seconds the tester