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 2 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.....2 ms/Div.
Coupling ............................DC
Trigger .........................Internal

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM

CONSTANT VOLTAGE FCAW/GMAW

MAXIMUM OUTPUT SETTING – NO LOAD

CH1

0 volts

2 ms

20 volts

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