Lincoln Electric R3R-300, R3R-500 service manual Typical Output Voltage Waveform Machine Loaded

Models: R3R-500 R3R-300

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F-36

F-36

TROUBLESHOOTING & REPAIR

TYPICAL OUTPUT VOLTAGE WAVEFORM – MACHINE LOADED

0 volts

20 volts

5 ms

This is the typical DC voltage wave- form generated from a properly oper- ating machine. Note that each verti- cal division represents 20 volts and that each horizontal division repre- sents 5 milliseconds in time. The machine was loaded with a resis- tance grid bank. The meter reads 500 amps at 40VDC.

Note: Scope probes connected at

machine output terminals: (+) probe to positive terminal, (-) probe to neg- ative terminal. (R3R 500 machine)

SCOPE SETTINGS

Volts/Div

20V/Div.

Horizontal Sweep

5 ms/Div.

Coupling

DC

Trigger

Internal

 

 

IDEALARC R3R

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Lincoln Electric R3R-300, R3R-500 service manual Typical Output Voltage Waveform Machine Loaded