Design and function
TIG welding
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099-005211-EW501
23.08.2010
5.5.2
Welding task selection
NOTE
Selection of a welding task involves the interaction of the controls on the welding
machine and the wire feed unit. After the basic settings are made on the welding
machine, the operating point and other parameters can be set on the wire feed unit.
m /m in
JOB-
LIST
0 ,5
1
1 ,5
2
2,5
3
3,5
4
5
6
7 8 9 10
11
12
13
14
15
16
18
2 0
22
24
m /m in
Figure 5-15
Operating
element
Action Result
Display
Wire
Gas
Material
JOB-
LIST
1 x
Select JOB list
(LED
Wire
Gas
Material
is on)
m/min
Set JOB number.
Wait 3s until the setting has been adopted.
m/min
Welding current is set
Setpoint setting
5.5.3
TIG arc ignition
5.5.3.1
Liftarc ignition
a)
b)
c)
Figure 5-16
The arc is ignited on contact with the workpiece:
a) Carefully place the torch gas nozzle and tungsten electrode tip onto the workpiece and press the torch
trigger (liftarc current flowing, regardless of the main current set).
b) Incline the torch over the torch gas nozzle to produce a gap of approx. 2-3 mm between the electrode
tip and the workpiece. The arc ignites and the welding current is increased, depending on the
operating mode set, to the ignition or main current set.
c) Lift off the torch and swivel to the normal position.
Ending the welding process: Release or press the torch trigger depending on the operating mode
selected.
