Normal Open Circuit Voltage Waveform Constant Voltage - Lincoln Electric IDEALARC DC 1000 SVM123-A Service Manual

F-39
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
CONSTANT VOLTAGE INNERSHIELD - MAXIMUM
This is the typical DC open circuit volt-
age waveform generated from a proper-
ly operating machine. Note that each
vertical division represents 50 volts and
that each horizontal division represents
2 milliseconds in time.
Note: Scope probes connected at
machine output terminals: (+) probe to
positive 1000 Amp terminal, (-) probe to
negative terminal.
TROUBLESHOOTING & REPAIR
OUTPUT SETTING - NO LOAD
IDEALARC DC-1000
SCOPE SETTINGS
Volts/Div. . . . . . . . . . . . . 50 V/Div.
Horizontal Sweep . . . . . 2 ms/Div.
Coupling . . . . . . . . . . . . . . . . . DC
Trigger . . . . . . . . . . . . . . . Internal
F-39