Fronius TransTig 2200 Instructions De Service page 161

Available set-up GPr ..... Gas pre-flow time ... 0.0 to 9.9 s
parameters
G-L ..... Gas-Low ... Gas post-flow at minimum welding amperage (minimum gas post-
G-H ..... Gas-High ... Increase in the gas post-flow time at maximum welding amperage
The value set for G-H only applies if the maximum welding current really has been set.
The actual value is derived from the instantaneous welding amperage. With a medium
welding amperage, for example, the actual value will be one-half of the value set for G-
H.
Important! The values for the set-up parameters G-L and G-H are added together. For
example, if both parameters are on maximum (25 s), the gas post-flow will last:
-
-
-
Fig.27a
Factory setting: 0.4 s
flow time) ... 0 to 25 s; factory setting: 5 s
... 0 to 25 s; factory setting: 15 s
25 s at minimum welding amperage
50 s at maximum welding amperage
27.5 s where the welding amperage is e.g. exactly half of the maximum
t
G-H
G-L
I
min
Gas post-flow time as a function of the welding amperage
Instantaneous
welding amperage
53
I
I
max