Design and function
TIG welding
099-005670-EW501
7.03.2022
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• 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.
5.2.2.2 Shielding gas hose connection
Figure 5-14
Item Symbol Description
0
1
Connection thread - G¼"
Shielding gas connection (inlet)
• Screw the gas hose connection to the shielding gas connection (inlet) on the machine gas-tight.
5.2.2.3 Gas test – setting the shielding gas volume
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!
Rule of thumb for the gas flow rate:
Diameter of gas nozzle in mm corresponds to gas flow in l/min.
Example: 7mm gas nozzle corresponds to 7l/min gas flow.
• Trigger the gas test function on the device control (see control operating instructions). Ignition and
welding voltage remain switched off (no accidental ignition of the arc).
• Set the relevant gas quantity for the application on the pressure regulator.
5.2.3 Welding task selection
For selection of the welding task and for general operation see the relevant Control operating instructions.
