EWM SATURN MIG 200, Operating Manual

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8 Commissioning
8/6
8.7 Shielding Gas Supply
8.7.1 Fitting the gas connections
Place the shielding gas cylinders in the their support and secure them with
the chain against accidents!
No impurities may be allowed to get into the shielding gas lines as
these could cause blockages.
Open the cylinder valve briefly before connecting the pressure regulatorto blow out any dirt
present.
All shielding gas connections must be made gas-tight!
•
Install the pressure regulator onto the gas cylinder.
•
Screw the gas hose to the regulator on the gas cylinder with the G ¼“ connection.
•
Screw the gas hose to the rear of the welding machine with the G ¼“ connection
(Chapter 4.: F2).
8.7.2 Shielding gas settings
As standard, a gas flow limitation nozzle for a gas flow of.
0 - 16 l/min is installed. For applications such as Aluminium where a greater gas flow rate is
needed, a gas flow limitation nozzle for 0 - 32 l/min (see Accessories) should be fitted.
Results of wrong shielding gas settings:
Too little shielding gas:
incomplete gas shield, the intruding air causes porosity in the weld
seam.
Too much shielding gas: turbulence can arise allowing air to intrude and cause porosity,
in the weld seam.
•
Open the cylinder valve slowly.
•
Open the pressure regulator.
•
Switch the power source on with the "ON/OFF" switch.
•
Select "2-Stroke" operating mode.
•
Release the knurled nut on the wire-feed and swing up the tensioner with the counter roller.
The welding wire may not be fed any more!
•
Press and hold the torch trigger, the shielding gas flows.
Do not touch the welding wire! Open circuit voltage!
•
Adjust shielding gas quantity on the pressure regulator to suit the application (see setting
instructions).
9 Setting Instructions
in working