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PRECISION TIG 185
TROUBLESHOOTING & REPAIR
F-32 F-32
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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
DC STICK MODE
CAUTION
HIGH VOLTAGE / HIGH FREQUENCY can damage test equipment.
• Perform all voltage and waveform checks with high frequency circuit OFF.
• Perform High Frequency Disable Procedure.
____________________________________________________________________
50 V
2 ms
0 V
This is the typical DC (+) output voltage
waveform generated from a properly operat-
ing 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 studs: (+) probe to electrode, (–)
probe to work.
Volts/Div. ...............................50 V/Div.
Horizontal Sweep .................2 ms/Div.
Coupling.........................................DC
Trigger .....................................Internal
SCOPE SETTINGS