TIG200–Pulse Duty Cycle (%): 10-90??? How-To?

[Piledriver]

From the specs:
Pulse Duty Cycle (%): 10-90

How does one access/control the pulsed DC function?
(EDIT- or is this a “lost in translation” description of the units basic constant current operation?)

I have some jobs on thin material that pulsed DC would be ideal for.

[Author]

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