Design and function
Transport and installation
28
099-005325-EW501
01.02.2017
5.1.10.1 Pressure regulator connection
Figure 5-9
Item Symbol
Description
0
1
Pressure regulator
2
Shielding gas cylinder
3
Output side of the pressure regulator
4
Cylinder valve
•
Before connecting the pressure regulator to the gas cylinder, open the cylinder valve briefly to blow
out any dirt.
• Tighten the pressure regulator screw connection on the gas bottle valve to be gas-tight.
• Screw gas hose connection crown nut onto the output side of the pressure regulator.
5.1.10.2 Gas test
– setting the shielding gas volume
CAUTION
Electric shocks!
When setting the shielding gas quantity, high voltage ignition pulses or open circuit
voltage 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.
• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Set the relevant gas quantity for the application on the pressure regulator.
• You can activate the gas test on the machine control (see Control operating instructions) or by
pressing the "Gas test/rinse hose package
"
push-button briefly (welding voltage and wire feed
motor remain switched off
– no unintentional ignition of the arc). Some welding systems have several
push-buttons to set the shielding gas. The push-button is generally found near a wire feeder.
Shielding gas flows for around 25 seconds or until the button is pressed again.
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!
Setting instructions
Welding process
Recommended shielding gas quantity
MAG welding
Wire diameter x 11.5 = l/min
MIG brazing
Wire diameter x 11.5 = l/min
MIG welding (aluminium)
Wire diameter x 13.5 = l/min (100 % argon)
TIG
Gas nozzle diameter in mm corresponds to l/min gas throughput
