Design and function
Shielding gas supply (shielding gas cylinder for welding machine)
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099-005444-EW501
17.03.2015
5.8.1
Gas test
• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Initiate gas test function on the machine control.
• Set the relevant gas quantity for the application on the pressure regulator.
• The gas test is triggered on the machine control by pressing the
button briefly.
Shielding gas flows for around 25 seconds or until the button is pressed again.
5.8.2
Rinse hose package function
Operating
Element
Action
Result
5 s
Select rinse hose package.
Shielding gas flows continuously until the Gas Test button is pressed
again.
5.8.3
Setting the shielding gas quantity
Welding process
Recommended shielding gas quantity
MAG welding
Wire diameter x 11.5 = l/min
MIG brazing
Wire diameter x 11.5 = l/min
MIG welding (aluminium)
Wire diameter x 13.5 = l/min (100 % argon)
TIG
Gas nozzle diameter in mm corresponds to l/min gas throughput
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
Factor
75% Ar/25% He
1.14
50% Ar/50% He
1.35
25% Ar/75% He
1.75
100% He
3.16
Incorrect shielding gas setting!
• 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!
