Normal Open Circuit Weld Voltage Waveform (115 Vac Supply - Lincoln Electric POWER-ARC SVM103-C Service Manual

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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115 VAC SUPPLY)
1 Period = 16.2 ms @ 3700 rpm
TROUBLESHOOTING & REPAIR
HIGH IDLE – NO LOAD
20 volts
This is the typical AC output voltage
generated from a properly operating
machine. Note that each vertical divi-
sion represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine 115 VAC receptacle.
SCOPE SETTINGS
Volts/Div ....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger.........................Internal
POWER-ARC 4000
CH1
0 volts
5 ms
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