Typical Dc Weld Voltage Waveform, Machine Loaded - Lincoln Electric CLASSIC I SVM134-A Service Manual

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TYPICAL DC WELD VOLTAGE WAVEFORM
MACHINE LOADED – SELECTOR SWITCH AT MAXIMUM
TROUBLESHOOTING & REPAIR
20 volts
MACHINE LOADED TO 200 AMPS AT 40VDC
This is the typical DC welding output
voltage generated from a properly
operating machine. Note that each
vertical division represents 20 volts
and that each horizontal division
represents 5 milliseconds in time.
The machine was loaded with a
resistance grid bank.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div .....................20V/Div.
Horizontal Sweep .....5 ms/Div.
Coupling.............................DC
Trigger .........................Internal
CLASSIC I
0 volts
5 ms
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