Lincoln Electric WIRE-MATIC 255 SVM 119-A - Manuel (Page 73)

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F-22 TROUBLESHOOTING & REPAIR F-22
WIRE-MATIC 255
This is a typical DC output voltage wave-
form generated from a properly operating
machine. Note that each vertical division
represents 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.
Volts/Div . . . . . . . . . . . . . . . . .20 V/Div.
Horizontal Sweep . . . . . . . . . .2 ms/Div.
Coupling . . . . . . . . . . . . . . . . . . . . .DC.
Trigger . . . . . . . . . . . . . . . . . . .Internal.
SCOPE SETTINGS
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM