ESAB Tig 150i Instruction Manual page 11

GB
7.1.4 LiftArct
The lift arc function strikes the arc when the electrode is brought into contact with the
workpiece and then lifted away from it.
Striking the arc with the Lift Arc function. Step 1: the electrode is touched on to the workpiece. Step
2: the trigger switch is pressed, and a low current starts to flow. Step 3: the welder lifts the torch
from the workpiece: the arc strikes, and the current rises automatically to the set value.
7.1.5 Gas post- -flow
This controls the time during which shielding gas flows after the arc is extinguished.
7.1.6 Slope down
TIG welding uses slope down, by which the current falls 'slowly' over a controlled
time, to avoid craters and/or cracks when a weld is finished.
Current
A higher current produces a wider weld pool, with better penetration into the
workpiece.
The current set value can be changed irrespective of which menu is displayed. This
value is displayed in the main menu only.
- - 11 - -
bt26d2e