User Manual

ionTig 200 Pulse PFC
Copyright © Mundaka Welding & Gases, Inc.
12
3.2 Duty cycle and Over-heat
The letter “X” stands for duty cycle, which is defined as the proportion of the time that a machine
can work continuously within a certain time (10 minutes). The rated duty cycle means the proportion of
the time that a machine can work continuously within 10 minutes when it outputs the rated welding
current.
The relation between the duty cycle “X” and the output welding current “I” is shown as the right
figure.
If the welder is over-heat, the IGBT over-heat protection unit inside it will output an instruction to cut
output welding current, and brighten the over-heat pilot lamp on the front panel. At this time, the machine
should be relaxed for 15 minutes to cool the fan. When operating the machine again, the welding output
current or the duty cycle should be reduced.
3.3 Movement and Placement
Please take care for the welder when moving it, and do not make it sloped.
It also can be moved by the handle on the top of the welder. Place the welder well when moving it to