Troubleshooting & repair, Typical output voltage waveform - machine loaded – Lincoln Electric IDEALARC SP-250 Manuel d'utilisation
Page 80
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F-33
TROUBLESHOOTING & REPAIR
F-33
IDEALARC SP-250
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 5 milliseconds in time.
The machine was loaded with a resistance
grid bank.
Note: Scope probes connected at machine
output terminals: (+) probe to electrode, (-)
probe to work.
Volts/Div . . . . . . . . . . . . . . . . .20 V/Div.
Horizontal Sweep . . . . . . . . . .5 ms/Div.
Coupling . . . . . . . . . . . . . . . . . . . . .DC.
Trigger . . . . . . . . . . . . . . . . . . .Internal.
SCOPE SETTINGS
MACHINE LOADED TO 250 AMPS AT 26 VDC
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
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