Design and function
Commissioning
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099-002025-EW501
29.11.2017
5.2
Commissioning
5.2.1
Preparations
Let the plasma gas flow through the torch for several minutes so as to purge it from any air humidity and
avoid ignition problems.
5.2.2
Start of welding
Before starting to weld, the arc has to briefly stabilise.
At this stage, the burning pilot arc is not centred.
Figure 5-2
5.2.3
Setting the electrode
When starting a new welding task, the electrode has to be re-set.
Turn the collet casing adjusting ring to optimally set the arc.
You can transfer the electrode position to the electrode gauge to keep using it for the same task.
5.2.4
Selecting the nozzle
To ensure an optimum service life of the nozzles, don’t operate the nozzle above the maximum current.
If necessary, switch to a nozzle of the next size.
The nozzle service life is also affected by the plasma gas quantity used.
The following applies:
The lower the plasma gas quantity, the shorter the service life
.
As a reference, take the nozzle diameter (same value or multiplied by factor 1.5) as distance between
plasma nozzle and workpiece.
