OM-198 683 Page 10

2-3. Welding Gun Duty Cycle And Overheating

CAUTION

WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty.

•Do not weld at rated load longer than shown below.
•Using gasless flux cored wire reduces gun duty cycle. warn7.1 8/93
Duty Cycle is percentage of 10
minutes that gun can weld at
rated load without overheating.
Continuous Welding SB1.1 8/93
0
10
Minutes
Definition .023 To .045 in (0.6 To 1.1 mm)
Hard Or Flux Cored Wires
100% Duty Cycle At 200 Amperes
Using CO2
100% Duty Cycle At 150 Amperes
Using Mixed Gases
.023 To .045 in (0.6 To 1.1 mm) Hard Or Flux Cored Wires
60% Duty Cycle At 300 Amperes
Using CO2
60% Duty Cycle At 200 Amperes
Using Mixed Gases
6 Minutes Welding 4 Minutes Resting

2-4. Volt-Ampere Curves

ssb1.1 10/91 – 196 844 / S-0700
1 Normal Volt-Ampere Curves
The volt-ampere curves show the
normal minimum and maximum
voltage and amperage output capa-
bilities of the welding power source.
Curves of other settings fall be-
tween the curves shown.
1
0
5
10
15
20
25
30
35
0 100 200 300 400
AMPERES
VOLTS