Duty Cycle And Overheating; Volt-Ampere Curves - Miller SRH-444 Manuel D'utilisation

4-4. Duty Cycle And Overheating

6 Minutes Welding
Overheating

4-5. Volt-Ampere Curves

60%dutycycle
4 Minutes Resting
0
15
Minutes
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit or gun and void
warranty.
V
OR
Reduce Duty Cycle
Volt-ampere curves show
mum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall be-
tween curves shown.
va_curve1 − 4/95 − 144 521-A
144 523-B
mini-
OM-2230 Page 13