Normal Open Circuit Voltage Waveform-Constant Voltage Subarc - Lincoln Electric IDEALARC SVM 122-A Service Manual

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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
MAXIMUM OUTPUT SETTING – NO LOAD
TROUBLESHOOTING & REPAIR
CONSTANT VOLTAGE SUBARC
20 volts
This is the typical DC open circuit
voltage waveform generated from a
properly operating machine. Note
that each vertical division represents
20 volts and that each horizontal divi-
sion represents 5 milliseconds in
time.
Note: Scope probes connected at
machine output terminals: (+) probe
to positive terminal, (-) probe to neg-
ative terminal.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
IDEALARC DC-400
LINCOLN
ELECTRIC
CH1
0 volts
5 ms
®
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