Shielding Gas Setting; Gas Test; Purge Hose Package" Function - EWM Tetrix 352 Synergic Operating Instructions Manual

5.8.2

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 5.8.3 Gas test chapter
• Set the required amount of shielding gas on the pressure reducer, about 4 - 15 l/min depending on the
current strength and the material.
5.8.3

Gas test

Operating
element
5.8.4

"Purge hose package" function

Operating
element
If the "Rinse hose package" function is not ended by pressing the "Gas and current parameters"
button again, shielding gas will flow until the gas cylinder is empty!
099-000141-EW501
12.01.2016
Shielding gas supply (shielding gas cylinder for welding machine)
Action Result
Select gas test
1 x "Gas pre-flow time (TIG)" signal light is on. Shielding gas flows for
approx. 20 seconds. The gas test can be ended immediately by
pressing it once more.
Action Result
Select hose package rinsing
5 s
"Gas pre-flow time (TIG)" signal light flashes.
The function is ended by pressing the button again.
Design and function
35