Paton ProMIG-200, User Manual

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PATON ProMIG DC MMA/TIG/MIG/MAG
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the risk of scalding the eyes by accidentally striking the arc. After the electrode is detached
from the workpiece, the welding process can be continued unobstructed.
3.5 CURRENT-VOLTAGE CHARACTERISTIC SLOPE CONTROL FUNCTION
This function is primarily intended for comfortable welding with electrodes with
various types of coatings. By default, the current-voltage characteristic slope [CVS] is set to
1.4 V/A, which corresponds to the most common rutile-coated electrodes (ANO-4, MR-3). It
is not mandatory for a more comfortable operation with electrodes with the main type of
coating (UONI-13/45, LKZ-70), but we recommend setting the slope [CVS] to 1.0 V/A. In turn,
the cellulose-coated electrodes (CC-1, VSC-4A) even require setting the slope [CVS] to a
value of 0.2...0.6 V/A, and sometimes it is necessary to raise the level of operation of the
"Arc-Force" function [u.AF] up to the value of 18V. See paragraph 6.1 to change the value of
any function in the current welding mode
3.6 SHORT-ARC WELDING FUNCTION
This function is especially relevant when welding ceiling joints, when you need to
make sure that the welding arc does not stretch too much. To do this, you can put the "Short
Arc" function [Sh.A] to the ON position. By default, it is in the OFF position. See paragraph
6.1 to change the value of any function in the current welding mode.
3.7 NO-LOAD VOLTAGE REDUCTION UNIT FUNCTION
When performing welding operations in the containers, tanks, and where an
enhanced electrical safety system is required, the no-load voltage reduction function can be
activated.
When the electrode is detached from the workpiece, after 0.1 seconds, the voltage
at the source terminals decreases to a safe level below 12V.
To do this, you need a no-load voltage reduction unit [BSn], which is available in this
model, but by default, it is in the OFF position, i.e., off, since it is known that turning on any
such function slightly worsens arc striking. See paragraph 6.1 to change the value of any
function in the current welding mode.
3.8 PULSE CURRENT WELDING FUNCTION
This function is designed to facilitate the control of the welding process in spatial
positions other than the lower one, as well as when welding non-ferrous metals. The effect
occurs directly on the mixing of the molten metal of the seam and on the transfer of the drop
into the weld pool, and this, in turn, affects the stability of the seam formation and the
welding process. In other words, this process replaces the welder's hand movements to some
extent, which is especially important in hard-to-reach places. The correct setting determines
the shape and quality of the seam formation, which reduces the likelihood of pores and
reduces the grain structure, and thus increasing the strength of the welded joint.