Specifications

UT525/526 Operating Manual

VIII. RCD Testing (see Picture 3 for the connection diagram)

Make the dial plate point to RCD/V and press I/VOLT key to set up test current

(test current: 10mA\30mA\100mA\300mA) to start RCD testing.

Connection Method:

Connect the red, green and blue testing wires of three-wire plug with the red

(L), green (E) and blue (N) ports respectively, and then insert the three-wire

plug into the 220V civil jack and press TEST key.

Note

1. During testing RCD, the earth terminal of power jack must be grounded

reliably.

2. During testing RCD, make sure that connection of L (live wire), N (null wire)

and E (earth wire) of power jack are connected rightly.

3. This testing is made under high voltage, pay attention to personnel safety