Gas Test - Setting The Shielding Gas Volume; Protective Flap, Welding Machine Control - EWM Drive XQ AC Operating Instructions Manual

Item Symbol
4
• Before connecting the pressure regulator to the gas cylinder, open the cylinder valve briefly to blow
out any dirt.
• Tighten the pressure regulator screw connection on the gas bottle valve to be gas-tight.
• Screw the gas hose connection to the outlet side of the pressure regulator gas-tight.
5.1.6.2 Gas test – setting the shielding gas volume
• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Trigger gas test > see 5.1.6.2 chapter function (welding voltage and wire feed motor remain switched
off – no accidental arc ignition).
• Set the relevant gas quantity for the application on the pressure regulator.
Welding process
MAG welding
MIG brazing
MIG welding (aluminium)
Helium-rich gas mixtures require a higher gas volume!
The table below can be used to correct the gas volume calculated where necessary:
Shielding gas
75% Ar/25% He
50% Ar/50% He
25% Ar/75% He
100% He
If the shielding gas setting is too low or too high, this can introduce air to the weld pool and may cause
pores to form. Adjust the shielding gas quantity to suit the welding task!
5.1.7

Protective flap, welding machine control

Item Symbol
1
• Carefully click the suspension of the protective cap towards front top.
099-005613-EW501
05.12.2023
Description 0
Cylinder valve
Recommended shielding gas quantity
Wire diameter x 11.5 = l/min
Wire diameter x 11.5 = l/min
Wire diameter x 13.5 = l/min (100 % argon)
Description 0
Protective cap
Design and function
Factor
1.14
1.35
1.75
3.16
Figure 5-8
Transport and installation
25