Lincoln Electric SVM148-B Welder User Manual


 
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TROUBLESHOOTING & REPAIR
F-41 F-41
RANGER 300 D AND 300 DLX
This is the typical auxiliary output
voltage generated from a properly
operating machine. Note that each
vertical division represents 50 volts
and that each horizontal division rep-
resents 5 milliseconds in time.
Note: Scope probes connected at
machine 115VAC receptacle.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115VAC SUPPLY)
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
0 volts
5 ms
50 volts
15.8 ms