Fronius TransTig 170, Operating Instructions Manual

Page: 40 / 100

40
Connecting the
Welding Torch to
the Power Source
NOTE!
Do not use pure tungsten electrodes for TransTig power sources (color code:
green).
Fit parts to the welding torch according to the welding torch's Operating Instructions
3 4
Establishing a
Ground Earth
Connection with
the Workpiece
1
Measuring the
welding circuit re -
sistance "r"
IMPORTANT! For optimum welding results, determine the welding circuit resistance " r "
before starting welding.
The welding circuit resistance " r " must also be determined if one of the following compo -
nents of the welding system is changed:
- Torch hosepack
- Welding torch
- Grounding cable
For more information on determining the welding circuit resistance, refer to the 2nd TIG
menu (see page 70 ).
1
TT 170
TT 210
TT 170 MV
TT 210 MV
2
+
-
3
+
1