METREL A 1322, Инструкция по эксплуатации

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A 1322 / A 1422 Measurements with A 1422
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6.4 Insulation resistance (supply circuit of Class II equipment to
accessible surfaces)

Refer to master instrument Instruction manual, chapter Single test
measurements , subchapter Insulation resistance - Riso (Welding equipment)
for detailed information.
Procedure:
Item Comment

Prepare test system. See chapter 4.3 Working
with the adapter.

Connect power supply plug of tested welding
machine into proper test socket.

Connect P/S probe to accessible isolated
conductive part of the welding machine.
See Figure 6.4.

Select Riso (Rw) test function on the master
instrument.

Set Test parameter LN (Class II)-P/S.

Start measurement.

Wait until measurement is finished or stop the
measurement.

Check result(s).

Store result(s). Optional
Figure 6.4: Insulation resistance (supply circuit of Class II equipment to accessible
surfaces)
Notes:

Consider any warning on the display before starting the measurement!

Do not touch or disconnect the DUT during the insulation resistance
measurement or before it is fully discharged!