Shielding Gas Hose Connection; Gas Test - Setting The Shielding Gas Volume; Gas Test; Purge Hose Package" Function - EWM Tetrix 352 AC/DC Synergic Operating Instructions Manual

Design and function
Transport and installation
5.1.9.2

Shielding gas hose connection

Item Symbol
1
• Screw the crown nut on the shielding gas lead gastight to the connecting thread (G¼").
5.1.9.3 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.
• Press the torch trigger and set the shielding gas quantity with the flow gauge of the pressure regulator.
5.1.9.4

Gas test

Operating ele-
ment
5.1.9.5

"Purge hose package" function

Operating ele-
ment
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!

5.1.10 Intermediate hose package strain relief

Property damage due to strain relief not installed or not installed correctly!
The strain relief absorbs tensile forces on cables, plugs and sockets.
If strain reliefs are not installed or not installed correctly, the connector plugs or sockets may be
damaged.
• The attachment must always take place on both sides of the intermediate hose package!
• The connections of the hose package must be locked properly!
34
Description 0
Connection thread - G¼"
Shielding gas connection (inlet)
Action Result
Select gas test
1 x
"Gas pre-flow time (TIG)" signal light is on. Shielding gas flows for ap-
prox. 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.
Figure 5-8
099-000140-EW501
30.01.2024