Shielding Gas Hose Connection; Gas Test - Setting The Shielding Gas Volume; Dirt Filter - EWM Picomig 185 puls TKG Operating Instructions Manual

5.1.8.2

Shielding gas hose connection

Item Symbol
1
• Screw the gas hose connection to the shielding gas connection (inlet) on the machine gas-tight.
5.1.8.3 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!
• 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 by briefly pressing the "Gas test " push-button on the machine control
(welding voltage and wire feed motor remain switched off – no unintentional ignition of the arc).
Shielding gas flows for around 25 seconds or until the button is pressed again.
Repeat rinsing process several times.
Setting instructions
Welding process
MAG welding
MIG brazing
MIG welding (aluminium)
TIG
Helium-rich gas mixtures require a higher gas volume!
The table below can be used to correct the gas volume calculated where necessary:
Shielding gas
75% Ar/25% He
50% Ar/50% He
25% Ar/75% He
100% He
5.1.9

Dirt filter

These accessory components can be retrofitted as an option > see 9 chapter.
When using a dirt filter, the cooling air throughput is reduced and the duty cycle of the machine is reduced
as a result. The duty cycle decreases with the increasing contamination of the filter. The dirt filter must be
remove at regular intervals and cleaned by blowing out with compressed air (depending on the level of
soiling).
099-005547-EW501
15.11.2022
Description 0
Connection thread - G¼"
Shielding gas connection (inlet)
Recommended shielding gas quantity
Wire diameter x 11.5 = l/min
Wire diameter x 11.5 = l/min
Wire diameter x 13.5 = l/min (100 % argon)
Gas nozzle diameter in mm corresponds to l/min gas throughput
Design and function
Figure 5-8
Factor
1.14
1.35
1.75
3.16
Transport and installation
27