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Idiomas disponibles
Idiomas disponibles
Post-flow [s]
Post-flow is the period of time for which gas
flows after the arc is extinguished and is
variable 0-20 sec.
Synergic post-flow (option) can be activated by
adjusting time to less than 0 secs, if the IGC kit has
been mounted. The displays shows then IGC and the
current post-flow. The synergic post-flow can be
adjusted +/- 50% by pressing the
adjusting the control knob (when the function is
active).
IGC Gas control kit (option)
Adjustment of the gas flow is possible
if a gas control kit has been installed
as special equipment. Press on the
the gas pre-flow and gas post-flow icons are turned
on. The gas flow is variable 4 - 26
Synergic gas flow can be activated by setting l/min to
less than 1 l. The display shows then IGC and the
current gas flow level. The synergic gas flow can be
adjusted +/- 50% by pressing the
adjusting the control knob (when the function is
active).
The gas valve will be completely open and the gas
adjustment is disconnected when the gas flow rate is
set to 27l.
CWF wire program (option)
Press on the
slope-up and slope-down icons are
turned on. The display will show X.YY where X is the
CWF unit and YY is the relative program number to be
used. Rotate the encoder to select unit/program. 0.00
is used when NO CWF must be activated. (default)
Current type
It is possible to select either AC (alternating
current) or DC (direct current). In the TIG-
welding process, AC is used for welding of aluminium
and its alloys, while DC is used for the welding of other
materials.
AC-t-balance (based on time) (TIG)
Adjustment of the refinement function during
the AC TIG welding of aluminium and its
alloys. The function is a balance based on time
between the positive and negative half period.
Adjustment is possible between 20 and 80 percent as
the statement in percent is based on the negative part
of the period time. Adjustment continues until a
suitable refinement zone is established around the
molten pool. In MMA the value is fixed to 50%.
By forcing the parameter to 100%, in TIG MODE the
machine executes a standard "Electrode Preheat" in
polarity DC+ then reverse the polarity to DC– like a
standard DC TIG. This function is used to clean the
workpiece when the arc is turned on.
-key pad and
-key pad until
l/min.
-key pad and
-key pad until the
22
AC-frequency
The AC frequency can be adjusted from 25 to
150 Hz for TIG welding. A low frequency
during TIG welding increases the tendency for the
formation of a large ball at the end of the tungsten
electrode. Increasing the frequency will reduce this
tendency. The frequency for MMA-welding can be
adjusted from 25 to 100 Hz. Forcing the Frequency to
0 Hz in MMA just reverse the polarity of
Electrode (+/-), avoiding the need of exchanging
Electrode Clamp and Ground cable.
Depending from the selected value of current, the AC
frequency is regulated and limited according to the
following criteria: higher is the current, lower will be the
AC frequency – see diagram. When selecting an AC
frequency not compatible with the selected current,
the display will start flashing. The requested AC
frequency value will only be active in case the current
is lowered.
During welding, the automatic reduction of AC-
frequency is indicated by continuous flashing of the
green indicator above the keypad. If the current is
lowered according to the diagram the indicator will
switch off to indicate the restored full compatibility
between Hertz and Amperes.
Maximum AC frequency as function of welding current
Electrode preheating
The length of the preheat period depends on
both the diameter of the electrode and the
angle of the point of the electrode, as well as the size
of the ball at the end of the electrode.
Adjustment is possible from 1 to 20, with 1 being the
minimum and 20 being the maximum preheat periods.
If the period is too short the pilot arc will extinguish
shortly after ignition. The size of the ball at the end of
the electrode will increase if the pre-heat period is too
long.
AC-I-balance, current intensity based
(only TIG)
The purpose of the function is also adjustment
of the refinement zone during AC TIG welding.
However, this balance is
based on the current
intensity of the positive
period proportional to the
current intensity of the
negative period. A
reduction of the positive
refinement current may
have the effect that the lifetime of the tungsten
electrode improves. Adjustment is possible between
30 and 170%. In MMA the value is fixed to 100%.
100%
150%
50%
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