CEA MATRIX 250 AC/DC Manual De Instrucciones página 25

ATTENTION: with EASY PULSE working and adjusting the
st
value of the 1 level PEAK CURRENT (I
values of the other 1st level parameters (I
5B)Press the SET key until the RED led of the 2
level PEAK CURRENT I
flashing
• Adjust the parameter by turning the special dial
ATTENTION: adjusting the value of the 2
RENT (I ) while EASY PULSE is working, you will have the
2p
values of the other 2nd level parameters (I
9) If you want a test weld, the led of the selected
parameter will flash and the value of the
parameter being set will be visualized on the
display while this is being done
10) Keep pressing the SET key for more than 1
second to leave the weld parameter setting
phase
11) Use the CYCLE function for PULSATING TIG welding
NOTE: The RED LED I
remain on continuously during the welding proc-
ess and the current value being used for welding
will be visualized on the display
NOTE: The RED LED I
remain on continuously during the welding proc-
ess and the current value being used for welding
will be visualized on the display
) you will have the
1p
,f) in synergy
1b
nd
(5÷250 A) starts
2p
nd
level PEAK CUR-
, f) in synergy
2b
and the GREEN LED I
p 1
and the RED LED I
2 p
TIG AC WELDING
WAVE SHAPES
The MATRIX 250 AC/DC offers the possibility of
choosing between 3 different types of wave
shapes:
• SQUARE WAVE: highly arc stability; ideal for
all thickness, both narrow and medium.
ATTENTION: During pre-setting and welding, the
display indicates "peak" current.
• MIXED WAVE: ideal for narrow thickness and
vertical welding; it increases thermal arc control
and service life of electrode.
ATTENTION: During pre-setting and welding, the
display indicates "peak" current.
• SINE WAVE: guarantees a quieter and softer
arc: ideal for medium thickness and head-head
welding.
ATTENTION: The display shows the current
"RMS" value in pre-setting and welding.
ELECTRODE DIAMETER SELECTION
The MATRIX 250 AC/DC offer the possibility of
setting the diameter of the electrode being used
to achieve the best synergetic control over strik-
ing.
WELD CURRENT WAVE BALANCING AND FREQUENCY
• BALANCING: graduating the negative and
positive half wave of the electrode appropri-
ately increases the penetration of the welding
or cleanliness on the surface of the piece.
• FREQUENCY: adjust the wave frequency to
achieve arc concentration and reduce wear on
electrode.
INPUT STORAGE
ATTENTION: The GREEN LED I
enter the input storage phase
1) Keep pressing the PROG key (for about 3
seconds) until the letters Pr appear on the
display
25
must be on continuously to
1