Fuel Consumption; Duty Cycle And Overheating - Miller Electric OM-4409 Owner's Manual

4-7. Fuel Consumption

3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
IDLE
0.25
0.00
0 50

4-8. Duty Cycle And Overheating

1000
800
600
500
400
300
250
200
150
100
10
w/ Air Output
100 150 200 250 300 350 400 450 500 550 600
DC WELD AMPERES AT 100% DUTY CYCLE
100% Duty Cycle At 500 Amperes
Continuous Welding
40% Duty Cycle At 600 Amperes
4 Minutes Welding
15 20 25 30
% DUTY CYCLE
6 Minutes Resting
40 50 60 80 100
The curve shows typical fuel use
under weld or generator power
loads.
208 211
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.
202 356
OM-4409 Page 17