Lincoln Electric IDEALARC R3R 500-I Operating Manual page 9

INTERNATIONAL SYMBOLOGY REFERENCE
The R3R nameplates feature international symbols in describing
the function of the various components.
Below are the symbols used and an explanation of what each
represents.
A. POWER ON-OFF SWITCH
On
Off
Power Input
B. ARC FORCE CONTROL DIAL
Arc Force
Increase/Decrease of Arc
Force
D. OUTPUT CURRENT CONTROL RANGE SWITCH
Output Current Control Dial
Range A
Output Current Control Dial
Range B
E. OUTPUT CURRENT CONTROL "MACHINE-
REMOTE" SWITCH
Remote Output Current
Control
F. POLARITY SWITCH
domestic models only)
Electrode Polarity Positive
Electrode Polarity Negative
Do Not Switch While Welding
IM 6000
(Factory installed option on
Idealarc R3R 500-I & 600-I
G. RATING PLATE
Three Phase Power
Transformer
Rectifier
Rectified DC Output
Constant Current
Characteristics
Shielded Metal Arc Welding
Line Connection
H. HIGH TEMPERATURE WARNING LIGHT
High Temperature Limit
I. Warning
Warning Identification
J. Ground
Signifying the Earth (Ground)
Connection
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