Lincoln Electric SVM144-B service manual Normal Open Circuit Voltage Waveform, Volts

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

F-31 TROUBLESHOOTING & REPAIR F-31

NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM

0 VOLTS

20.0 V 2.5 ms

Return to Section TOC

Return to Master TOC

This is a typical DC output voltage waveform generated from a properly operating machine. Note that each vertical division represents 20 volts and that each horizontal division represents 2.5 milliseconds in time.

NOTE: Scope probes connected at

machine output terminals: (+) probe to elec- trode, (-) probe to work.

SCOPE SETTINGS

Volts/Div . . . . . . . . . . . . . . . . . . 20 V/Div

Horizontal Sweep . . . . . . . . . 2.5 ms/Div

Coupling . . . . . . . . . . . . . . . . . . . . . . DC

Trigger . . . . . . . . . . . . . . . . . . . . Internal

Return to Section TOC

Return to Master TOC

POWER MIG 255