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3-2. Duty Cycle and Overheating
300
250
200
150
100
20
6 Minutes Welding
Overheating
3-3. Typical Process Connections
Power cord
To welding power
source weld output
receptacles
Gas in
OM-189 112 Page 6
Model 2F
Model 1-2
25
30
35
40
50
Example: 60% Duty Cycle =
0
Minutes
Remote 14 cord
Welding
Power
Source
High
Frequency Unit
Power cord
Gas out
60 70 80 90 100
4 Minutes Resting
15
OR
Reduce Duty Cycle
14-Pin
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y Exceeding duty cycle can
damage
unit
and
warranty.
A
duty1 4/95 / Ref. SA-168 919
Remote foot or hand control
GTAW –
Work +
void