Saf-Fro PRESTOTIG 315 AC/DC Manual De Instrucciones página 26

In order to allow maximum flexibility to advanced users
that need complete control over the welding process, the
AC starting parameters can be modified by selecting
MANL for the TSTR (Tig Starting Parameters) option in
Menu C.
User can change polarity,
values of the other parameters creating its personal
waveform for starting.
NOTE: the changing of the parameters above, could
affect the striking of the arc if not correcting set.
Restart 2S, Restart 4S, Spot and Bi-Level
See GTAW section above for details about mode of
working.
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