Lincoln Electric BULLDOG SVM208-A - Manual (Page 78)

This is the typical AC output voltage
generated from a properly operating
machine. Note that each vertical divi-
sion represents 20 volts and that
each horizontal division represents 5
milliseconds in time. The machine
was loaded with a resistance grid
bank.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal
TYPICAL WELD OUTPUT WAVEFORM
MACHINE LOADED
0 volts
5ms 20 volts
50V
TROUBLESHOOTING AND REPAIR F-30 F-30
BULLDOG® 140
MACHINE LOADED TO 125 AMPS AT 23 VAC
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