3
Function specification
3/5
3.2
Function sequence of TIG non-latched operation without
UP/DOWN-SLOPE
E1
Set the rotary switch to the position (non-latched without slope)
N1
Set the changeover switch to the position
(HF ignition on)
1st step:
•
Operate the torch trigger.
•
The gas pre-flow time passes.
•
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 welding current I
1
.
•
HF is switched off.
2nd step:
•
Release the torch trigger.
•
The arc extinguishes.
•
The gas post-flow time set begins.
Fig. 2
Function sequence of non-latched operation without Slope
