Commissioning
Shielding gas supply
60
Item No.: 099-004934-EWM01
6.9.2
Gas test or "rinse tube package"
NOTE
For machines with M2.40 or M2.20 control, the gas test is carried out by pressing the
appropriate button on the control; for machines with M1.02 control, the gas test is made
on the internal operating elements (see "Machine description") of the compact welding
machine or on the internal operating elements of the wire feed.
• Slowly open the gas cylinder valve.
• Open the pressure reducer.
• 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 reducer.
• Press button. Gas flows for a maximum of 25 seconds or until
button is pressed again.
6.9.3
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
NOTE
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!
