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F-42 TROUBLESHOOTING & REPAIRF-42
NORMAL OPEN CIRCUIT DC WELD VOLTAGE WAVEFORM
HIGH IDLE – NO LOAD – FINE CURRENT CONTROL RHEOSTAT AND SELECTOR
SWITCH AT MAXIMUM
0 volts
50 volts | 5 ms |
This is the typical DC welding output voltage generated from a properly operating machine. Note that each vertical division represents 50 volts and that each horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at machine output terminals.
SCOPE SETTINGS | |
Volts/Div | 50V/Div. |
Horizontal Sweep | 5 ms/Div. |
Coupling | DC |
Trigger | Internal |
