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5.7.4
Shielding gas setting
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.
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!
•
Slowly open the gas cylinder valve. Conduct a gas test (see chapter "gas test")
•
Set the required amount of shielding gas on the pressure reducer, about 4 - 15 l/min depending on the
current strength and the material.
5.7.4.1
Gas test
Operating
element
5.7.4.2
"Rinse tube package" function
Operating
element
5.7.4.3
Automatic gas post-flow
When the automatic gas post-flow function is activated, the gas post-flow time is defined by the machine
control depending on the application (4.0 s to 40.0 s). The gas post-flow time can be adjusted if
necessary on the machine control. This value is then saved for the current application.
When the automatic gas post-flow function is deactivated, the gas post-flow time can be set absolutely by
the user to between 0.0 s and 40.0 s.
To adjust or switch this machine function on or off, see chapter "Menus and submenus
on the machine control"
099-000098-EW501
03.08.2011
Action
Result
Select gas test.
1 x
Shielding gas flows for approx. 20 seconds.
The gas test can be ended immediately by pressing it once
more.
Action
Result
Select rinse hose package.
Shielding gas flows continuously until the gas test button is
5 sec.
pressed again. "AMP%" LED flashes.
Design and function
NOTE
NOTE
TIG welding
Displays
Displays
29
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