39
EN-US
- Test voltage for all measurements 500
V DC
- The insulation resistance must not be
less than the values specified in the ta-
ble below
- The lowest measured value must be
entered in the log
Key:
1 Measuring instrument
2 Test object
9 Measuring line
NOTE!
If the current sockets and the contacts on the mains plug do not have a conductive
connection during the measurement, the measurement must be carried out with
each individual current socket / line.
Open circuit volt-
age
- Peak value measurement of the open circuit voltage at the current sockets of the pow-
er source
- The measurement must be carried out with the "measuring circuit for U
0
measure-
ment" (43,0001,0945)
- Measurement must be performed using the electrode mode
- The open circuit voltage must not exceed the value specified on the rating plate when
supplying the power source with rated welding voltage - tolerance +/- 10%
Open circuit voltage test sequence:
- Connect test circuit and multimeter to power source
- Set multimeter to voltage measurement DC and measuring circuit to U
PEAK
- Briefly press the Reset button to discharge the capacitors
- Turn the device on
- Adjust the potentiometer until the maximum voltage value is displayed
Measurement Measurement point Measured
value
Primary Secondary Mains plug L / N current sockets 5 M
Primary Ground Mains plug L / N ground 2.5 M
Secondary Ground Current sockets Ground 2.5 M
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