Design and function
Transport and installation
30
099-007033-EW501
4.1.2022
Item Symbol Description
0
2
Plasma gas
3
G1/4" connecting nipple, shielding gas connection
Connection to the pressure reducer
4
Connecting nipple G1/4“ plasma gas, inlet
Connection to pressure regulator
• Check correct condition and sealing of tubes. Blow through gas hoses.
• Screw the connection coupling of the plasma gas line onto the G1/4" connecting nipple, plasma gas
connection.
• Screw the connection coupling of the shielding gas line onto the G1/4" connecting nipple, shielding
gas connection.
5.1.7.3 Gas test
The connected gas lines should each have a pre-pressure of 4.5 bar (tolerance limits: plasma gas
4 bar to 5 bar, shielding gas 4 bar to 5 bar).
The functional sequence for the gas test is carried out in the same way for shielding gas and
plasma gas. The gas test is only possible if:
• the pilot arc is not ignited and
• no welding process is being carried out.
Shielding and plasma gas setting can be checked without welding current flowing (currentless) and set if
required. Activation of the gas test button releases both gas valves simultaneously and the gas setting
can be made at the corresponding flow regulator.
• Press and hold the shielding or plasma gas test pushbutton.
• Release the pushbutton (test procedure complete).
• Press the torch trigger and set the shielding gas quantity with the flow gauge of the pressure regulator.
The flow quantity cannot be set higher on the gas flow regulator for fine adjustment of the gas flow than
specified on the shielding gas cylinder pressure reducer.
5.1.7.4 Automatic gas post-flow
If the function is active, the gas post-flow time is defined by the machine control unit in dependence on
power output. The defined gas post-flow time can also be adjusted if required. This value is then saved
for the current welding task. The automatic gas post-flow function
can be activated or deactivated in
the machine configuration menu
> see 5.9 chapter
.
