Shielding Gas Hose Connection; Gas Test - Setting The Shielding Gas Volume; Gas Test - EWM Tetrix 352 Synergic Operating Instructions Manual

Design and function
TIG welding
5.2.1.2

Shielding gas hose connection

Item Symbol
1
•
Screw the crown nut on the shielding gas lead gastight to the connecting thread (G¼").
Gas test – setting the shielding gas volume
5.2.2
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.
5.2.2.1

Gas test

Operating
element
28
Description 0
G¼" connecting nipple
Shielding gas connection on the pressure regulator.
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.
Figure 5-7
099-000141-EW501
20.11.2017