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UNI-T UT528AU

UNI-T UT528AU
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12
Class 2 Pre-Check
If the unit detects that the appliance appears to be Class 1 as it detects an
earth connection (possibly as a result of a connected earth clip) it will display
a flashing
symbol and you will be prevented from carrying out the Class
2 test. Test the appliance instead using the Class 1 test.
Insulation Resistance Test – Class 2 Appliance
Before the unit carries out the insulation test the unit will attempt to check to

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