OM-278174 Page 16
F
Complete Parts List is available at www.MillerWelds.com
4-11. Duty Cycle And Overheating For TIG
Duty Cycle is percentage of 10 minutes that
unit can weld at rated load without
overheating.
If unit overheats, output stops. Wait fifteen
minutes for unit to cool. Reduce amperage or
duty cycle before starting to weld again.
NOTICE – Exceeding duty cycle can damage
unit and void warranty.
60% Duty Cycle At 275A
6 Minutes Welding 4 Minutes Resting
100% Duty Cycle At 230A
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
4-12. Static Characteristics
The static (output) characteristics of the welding power source can be described as flat during the GMAW process and drooping during the
SMAW and GTAW processes. Static characteristics are also affected by control settings (including software), electrode, shielding gas, weldment
material, and other factors. Contact the factory for specific information on the static characteristics of the welding power source.
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