Design and function
TIG welding
099-002058-EW501
26.11.2020
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5.2.2.2 Shielding gas hose connection
Figure 5-9
Item Symbol Description
0
1
Connection thread - G¼"
Shielding gas connection (inlet)
• Screw the gas hose connection nipple onto the G¼" connection nipple.
5.2.2.3 Gas test – setting the shielding gas volume
CAUTION
Electric shocks!
When setting the shielding gas quantity, high voltage ignition pulses or open circuit vol-
tage are applied at the welding torch; these can lead to electric shocks and burning on
contact.
• Keep the welding torch electrically insulated from persons, animals or equipment during the
setting procedure.
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.
• Press the torch trigger and set the shielding gas quantity with the flow gauge of the pressure regulator.
