Setting The Shielding-Gas Flow Rate; Arc Ignition - Generalremarks; Hf Ignition - Fronius TransTig 2200 Operating Instructions Manual

Setting the When using any other TIG welding torch:
shielding-gas -
flow rate -
Important! The test gas-flow lasts for a maximum of 30 seconds. Press the button
again to abort the procedure.
Arc ignition -
For an optimised ignition sequence where the TIG-AC welding process has been
generalremarks
selected, the MagicWave 1700 / 2200 power source takes account of the diameter of
the electrode. It also takes account of the electrode's actual temperature, computed with
reference to the preceding welding and weld-off times. What is more, on the MagicWave
1700 / 2200 the RPI Reverse Polarity Ignition ensures outstandingly good ignition
behaviour in TIG-DC welding.
In addition, the MagicWave 1700 / 2200 power source comes with RPI (Reverse
Polarity Ignition) for the TIG-DC welding process. At the beginning of welding, the
polarity is briefly reversed, causing electrons to emerge from the workpiece and to
impact upon the electrode. This results in rapid heating-up of the electrode - which, in
turn, is an essential precondition for optimum ignition performance.
For details of how to adjust the set-up parameter "rPI", please refer to the section
headed "The set-up menu: Level 2" - sub-section "AC / polarity reversal set-up
parameters".
The factory setting (i.e. in which the power source is delivered) is: Parameter rPI = "ON"
Important! The "OFF" setting is only recommended for welds in the light-gauge range.

HF ignition

For details of how to adjust the set-up parameter "HFt", please refer to the section
headed "The set-up menu: Level 2" - sub-section "TIG set-up parameters".
Use the HFt parameter to set the time interval of the HF impulses to 0.01 s. The factory
setting (i.e. in which the power source is delivered) is: Parameter HFt = "0.01s".
As compared with touchdown ignition, HF ignition eliminates the risk of contamination of
the electrode and of the workpiece.
Press the gas-test button (14)
Set the desired shielding-gas flow rate
Note! If there are problems with sensitive equipment in the immediate vicinity,
increase the parameter HFt to a maximum of 0.4 s.
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