Lincoln Electric IDEALARC SP-255 Service Manual page 82

F-29
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
This is a typical DC output voltage waveform
generated from a properly operating ma-
chine. Note that each vertical division repre-
sents 20 volts and that each horizontal
division represents 2 milliseconds in time.
Note: Scope probes connected at machine
output terminals: (+) probe to electrode, (-)
probe to work.
TROUBLESHOOTING & REPAIR
IDEALARC
SCOPE SETTINGS
Volts/Div . . . . . . . . . . . . . . . . . .20 V/Div.
Horizontal Sweep . . . . . . . . . .2 ms/Div.
Coupling . . . . . . . . . . . . . . . . . . . . . .DC.
Trigger . . . . . . . . . . . . . . . . . . . .Internal.
® SP-255
F-29