A 1322 / A 1422
Measurements according to IEC / EN 60974-4
34
6.9 No load voltage
Refer to chapter
Measurements – Single tests for welding machines
,
paragraph
No load voltage
in master instrument user manual 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 welding terminals to W1 and W2 terminals
on A 1422.
See
figure below.
Set type (AC or DC) and limits.
Optional
Start measurement on the master instrument.
Wait until measurement is finished.
Check result(s).
Store result(s).
Optional
Figure 6.9:
No load voltage measurement
Warning:
During the test, DUT is powered as for normal operation. Pay attention on
possible electric shock!
Notes:
Consider any displayed warning before starting measurement!
The No load voltage should be checked in all operating modes of the welding
machine.
