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Functional description
3.8
Rotating button, voltage and special parameters
The rotating knob for welding voltage [14] allows the arc length and the
steplessly controllable choke to be set steplessly and thus to specify the working
point. Between the minimum and maximum settings, any working point can be
GB
selected. The processor controller automatically makes available all of the
required parameters for the entire welding process.
The Special parameters sub-menu allows the user to select values for the
selected parameters using the rotating knob [14].
The MEGAPULS 250 is fitted with a steplessly controllable choke. The choke
characteristics are dynamically adapted by the processor controller of the
relevant task. This always sets the optimum setting for the choke (except in the
manual program) whilst taking account of the material selection that was made
when welding was started and during welding.
The MEGAPULS 250 offers the opportunity to set the stepless choke effect to
suit your own needs and set the arc harder or softer using the rotating knob [14].
3.10 Push button information and memory, thread
and gas test
3.9.1 Push button information and memory
When setting the synergic welding program, job and manual, the push button
INFO/MEM [18] can be used to display information (e.g. wire diameter, gas type
and material) and in job it is used to manage (save, delete and modify) the jobs.
In the Special parameters sub-menu, longer pressing of the push button
INFO/MEM calls the factory settings of the special parameters (see Chapter
3.11).
3.9.1.1 Information regarding the selected programs
Pressing the push button [22] alongside the lower digital display [21] allows the
user to select the setting type, synergic welding program, job or manual. In the
digital display [21], the selected program number of selected job number is
displayed.
Briefly pressing the INFO/MEM [18] push button displays the information (wire
diameter, gas type and material) for the selected program in the digital display
[21].
3.9.2 Press button, thread
The currentless thread of the welding wire into the torch hose package is carried
out using the Thread push button [16].
3.9.3 Press button, gas test
As long as the Gas test [17] push button is held down, the gas valve is open and
inert gas flows from the torch.
This enables you to set the required gas flow volume without current and without
wire feed at the pressure reducer.
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