Welbach ENTRIX 200D Manual De Instrucciones página 41

AC frequency
Allows you to adjust the cycle frequency of the AC
square wave (transition from + to -) during AC TIG
welding.
Base current
Lower current value in pulse welding mode. The
recommended setting is 30% of the peak current.
Down slope
The time that elapses in the transition from peak to
crater current when the torch trigger is pressed in 4T
mode. The recommended setting is 3 seconds.
Final current ("Crater current")
Allows you to select the amperage required at the
end of the weld.