Shielding Gas Hose Connection; Shielding Gas Volume Settings - EWM Taurus 355 Basic TKM Operating Instructions Manual

5.1.8.2

Shielding gas hose connection

Item Symbol
1
2
• Screw the gas hose connection to the shielding gas connection (inlet) on the machine gas-tight.
5.1.8.3

Shielding gas volume settings

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!
• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Trigger gas test > see 5.1.8.4 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.
Setting instructions
Welding process
MAG welding
MIG brazing
MIG welding (aluminium)
TIG
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
099-005406-EW501
30.03.2022
Description 0
Shielding gas cylinder / pressure regulator
Connection thread - G¼"
Shielding gas connection (inlet)
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)
Gas nozzle diameter in mm corresponds to l/min gas throughput
Design and function
Figure 5-8
Factor
1.14
1.35
1.75
3.16
Transport and installation
25