Design and function
TIG welding
36
099-000143-BOC01
16.11.2009
Sequence:
• Press and hold torch trigger 1.
• The gas pre-flow time elapses.
• HF ignition pulses jump from the electrode to the workpiece, the arc ignites.
• The welding current flows and immediately assumes the value set for the ignition current I
start
.
• HF
is
switched
off.
• The welding current increases in the adjusted up-slope time to the main current AMP.
NOTE
The process ends when the set SpotArc time elapses or if the torch trigger is released
prematurely.
spotArc/pulse variants table:
Process Pulse
variants
Automated pulses (factory setting)
sec
(lights up in green)
Pulses (thermal pulses)
TIG DC
No pulses
sec
(lights up in green)
Pulses (thermal pulses)
AC special
TIG AC
No pulses