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Igniting the arc
Igniting the arc
using high fre-
quency
(HF ignition)
HF ignition is activated when a time value has been set for the HFt setup parameter.
The HF ignition indicator lights up on the control panel.
Compared with touchdown ignition, HF ignition eliminates the risk of contamination of the
tungsten electrode and the workpiece.
Procedure for HF ignition:
Place the gas nozzle down on the igni-
tion location so that there is a gap of
approx. 2 to 3 mm (5/64 to 1/8 in.)
between the tungsten electrode and
the workpiece
Increase the tilt angle of the torch and
actuate the torch trigger according to
the mode you have selected
The arc ignites without the electrode tou-
ching down on the workpiece.
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