EWM Phoenix Expert drive 4L M3.70 Operating Instructions Manual page 58

Design and function
TIG welding
Latched mode
Selection
•
Select latched operating mode
Step 1
•
Press and hold torch trigger
•
Shielding gas is expelled (gas pre-flows)
The arc is ignited using liftarc.
•
Welding current flows with pre-selected setting.
Step 2
•
Release torch trigger (no effect)
Step 3
•
Press torch trigger (no effect)
Step 4
•
Release torch trigger
•
Arc is extinguished.
•
Gas post-flow time elapses.
58
Figure 5-23
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099-004846-EW501
8.01.2014