Duty Cycle And Overheating - Air Liquide M 130 Owner's Manual

2.4 DUTY CYCLE AND OVERHEATING:

Duty cycle is the percentage of 10 minutes that the unit can weld at its rated output without overheating. If the
unit overheats, the weld output will stop. To correct this situation, wait fifteen minutes for the unit to cool. Reduce
amperage or duty cycle before starting to weld again.
120
100
80
60
40
20
0
140
120
100
80
60
40
20
0
• Exceeding duty cycle can damage unit and void warranty.
M 130 Duty Cycle
DUTY CHART M 130
10 20 30 40
M 170 Duty Cycle
DUTY CHART M 170
10 20 25 30 40 50 60 70 80 90 100
50 60
% DUTY CYCLE
% DUTY CYCLE
8
70 80 90 100