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2
3
4-step mode
See the description
to activate 4-step mode.
4-step mode with intermediate lowering I-2
Intermediate lowering means that the welder uses the torch trigger during the
main current phase to lower the welding current to the specified reduced current
I-2.
1
2
3
4
5
6
7
32
Raise the tungsten electrode => arc ignites
Release torch trigger => end of welding
Parameters for TIG welding
I
I-S
GPr
t
t
s
up
1
2
3
Place the tungsten electrode onto the workpiece and then pull the torch trig-
ger back and hold => shielding gas flows
Raise the tungsten electrode => start of welding with starting current I-S
Release torch trigger => welding with main current I-1
Push forward and hold the torch trigger => activation of intermediate lower-
ing with reduced current I-2
Release torch trigger => welding with main current I-1
Pull back and hold the torch trigger => lowering to final current I-E
Release torch trigger => end of welding
I-1
I-2
4
on page
42
for details on how
I-1
t
down
5
6
I-E
t
GPo
t
e
7
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