Design and function
TIG welding
099-000151-EW501
18.01.2013
31
5.6.9
TIG runtime parameters
Figure 5-10
Display Setting/selection
Main current I1 (AMP)
Main current setting
Secondary current (AMP%)
Setting range in percent: 1% to 100% (depending on main current).
Setting range, absolute: Imin to Imax.
Downslope time
0.00 s to 20.0 s (0.1 s increments). The downslope time can be set separately for latched
and non-latched operation.
End-crater current
Setting range in percent: depending on main current
Setting range, absolute: Imin to Imax.
Gas post-flow time
Setting range: 0.1 s to 20.0 s (0.1 s increments).
Diameter of tungsten electrode/ignition optimisation
1 mm to 4 mm or larger (0.1 mm increments)
Alternating current balance (AC)
Max. setting range: -30% to +30% (1% increments).
Optimisation of cleaning and fusion penetration.
Alternating current frequency (AC)
Setting range: 50 Hz to 200 Hz (1 Hz increments).
Constriction and stabilisation of the arc: The cleaning effect increases with a higher
frequency. Particularly thin panels (welding with a low current), anodised sheet
aluminium or highly contaminated articles for welding can be welded and cleaned
perfectly at a higher frequency.
