Typical Output Voltage Waveform-Machine Loaded - Lincoln Electric IDEALARC R3R-300 Service Manual

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TYPICAL OUTPUT VOLTAGE WAVEFORM – MACHINE LOADED
TROUBLESHOOTING & REPAIR
20 volts
This is the typical DC voltage wave-
form generated from a properly oper-
ating machine. Note that each verti-
cal division represents 20 volts and
that each horizontal division repre-
sents 5 milliseconds in time. The
machine was loaded with a resis-
tance grid bank. The meter reads
500 amps at 40VDC.
Note: Scope probes connected at
machine output terminals: (+) probe
to positive terminal, (-) probe to neg-
ative terminal. (R3R 500 machine)
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
IDEALARC R3R
0 volts
5 ms
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