Setting the
shielding gas
flow rate
CAUTION!
Risk of injury and damage from electric shock.
As soon as the mains switch is in the "I" position, the tungsten electrode of the welding
torch is LIVE. Make sure that the tungsten electrode does not touch any persons or elec-
trically conductive or earthed parts (e.g. housing, etc.)
If using a gas-valve torch:
1.
Move the mains switch to the "I" position
2.
Open the gas cut-off valve on the torch or press the torch trigger and set the desired
gas flow rate at the pressure regulator
If using welding torch TTG 2200 TCS (TP 2500/3500 TIG only) to set the gas flow rate:
1.
Move the mains switch to the "O" position
2.
Press the process button and simultaneously move the mains switch to the "I" posi-
tion
-
All indicators on the control panel flash
-
The fan switches on
-
The gas solenoid valve picks up
3.
Set the desired shielding gas flow rate using the pressure regulator
4.
Press the "Process" button
-
The indicators on the control panel stop flashing
-
The fan switches off (if the temperature allows)
-
The gas solenoid valve drops out
IMPORTANT!
The test gas flow lasts for a maximum of 15 seconds if it is not interrupted
by pressing the Process button.
Selecting the pro-
cess
1.
Select one of the following processes using the Process button:
-
The following indicator lights up if the TIG welding process is selected:
-
The following indicator lights up if the TIG pulsed arc process is selected:
Adjusting weld-
ing current, ignit-
ing the arc
1.
Select amperage using welding current adjuster
2.
Place the gas nozzle in the ignition location so that there is a gap of 2 - 3 mm (0.08 -
0.12 in.) between the tungsten tip and the workpiece Gap exists
3.
Gradually tilt up the welding torch until the tungsten electrode touches the workpiece
IMPORTANT!
As long as the torch is touching the workpiece, the gas pre-flow takes
place automatically.
If the torch and workpiece remain in contact for more than 3 seconds, the welding cur-
rent switches off automatically. Place the gas nozzle on the ignition location again.
4.
Raise the torch and tilt it into the normal position - the arc now ignites
5.
Carry out welding
27
EN
