Miller Electric OM-4409 - Manual (Page 21)

OM-4409 Page 17
4-7. Fuel Consumption
The curve shows typical fuel use
under weld or generator power
loads.
208 211
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
0 50 100 150 200 250 300 350 400 450 500 550 600
DC WELD AMPERES AT 100% DUTY CYCLE
US Gal./Hr
.
IDLE
w/ Air Output
Continuous Welding
4-8. Duty Cycle And Overheating
202 356
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
100% Duty Cycle At 500 Amperes
4 Minutes Welding 6 Minutes Resting
40% Duty Cycle At 600 Amperes
10
100
15 20 25 30 40 50 60 80 100
150
200
250
300
400
500
600
800
1000
% DUTY CYCLE
WELD AMPERES