OM-284794 Page 17
F
Complete Parts List is available at www.MillerWelds.com
4-8. Duty Cycle And Overheating
Duty Cycle is percentage of 10 minutes that
unit can weld at rated load without
overheating.
If unit overheats, output stops, a Help mes-
sage is displayed (see Section 8-4), and cool-
ing fan runs. Wait fifteen minutes for unit to
cool. Reduce amperage or voltage, or duty
cycle before welding.
NOTICE – Exceeding duty cycle can damage
machine or torch and void warranty.
0
10 60 100
150
200
250
Output Current (A)
300
30
TIG
247219-B
STICK
Rated Duty Cycle (%)
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
4-9. Static Characteristics
The static (output) characteristics of the welding power source can be described as 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.
4-10. Environmental Specifications
A. IP Rating
IP Rating
IP23
This equipment is designed for outdoor use.
B. Temperature Specifications
Operating Temperature Range* Storage/Transportation Temperature Range
14 to 104°F (-10 to 40°C) -4 to 131°F (-20 to 55°C)
*Output is derated at temperatures above 104°F (40°C).
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