Normal Open Circuit Voltage Waveform - Lincoln Electric WIRE-MATIC 255 SVM 119-A Service Manual

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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM

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.
TROUBLESHOOTING & REPAIR
WIRE-MATIC 255
SCOPE SETTINGS
Volts/Div . . . . . . . . . . . . . . . . .20 V/Div.
Horizontal Sweep . . . . . . . . . .2 ms/Div.
Coupling . . . . . . . . . . . . . . . . . . . . .DC.
Trigger . . . . . . . . . . . . . . . . . . .Internal.
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