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WELDER OPERATION
DUTY CYCLE
Full output and duty cycle may not be obtained from all power sources. The output and duty cycle may be limited by the 40 amp input power limitation of the Demo Zone. The duty cycle of the power source must be adjusted to be within the capability of the 40 amp input supply.
Duty cycle is based upon a ten minute period. A 10% duty cycle represents 1 minute of welding and 9 min- utes of idling in a ten minute period.
Some examples of allowable duty cycles of the Demo Zone are given. If the duty cycle or input currents exceed the capability of the 40 amp circuit breaker, the breaker will trip off. For lower output currents, the duty cycle is extended from what is listed.
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200A at 28v | 100% duty cycle | 41A input |
275A at 31V | 10% duty cycle | 62A input |
Power MIG 255 (machine limited) |
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200A at 28v | 60% duty cycle | 37A input |
250A at 30v | 40% duty cycle | 46A input |
Pro Cut 55 |
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55A | 15% duty cycle | 55A input |
Square Wave TIG 175 |
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150A | 10% duty cycle | 65A input |
AUXILIARY POWER OPERATION
Duty cycle and maximum current may be less than rated value if the power sources are powered from the Ranger 250.
(Refer to Ranger 250 Operator’s Manual).
DEMO ZONE
