CEA MATRIX 2200 AC/DC, Operator'S Manual

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7
5B) BALANCING the AMPLITUDE of the CURRENT (I) (-50÷+20)
It is possible to adjust the amplitude of the current (I) while the
electrode stays in place independently, using positive or neg-
ative values, guaranteeing perfect control of penetration and
cleanliness, drastically reducing side incisions.
Display - +
-50 150% 50%
I (A)
t (s)
Display - +
0 100% 100%
I (A)
t (s)
Display - +
+20 80% 120%
I (A)
t (s)
Press the BALANCING and FREQUENCY (T4) key once, wait
a few seconds, and hold the same key down for at least 2 sec-
onds. Then use the ENCODER Knob (E) to adjust the value
shown on the DISPLAY (D).
I
2
HOT
START
ARC
FORCE
PULSE
CYCLE
T
b
f
T
p
I
1 I
p
I
b PULSE
SYN
FAST
SLOW
WAVE
VRD
CYCLE
Ø
PULSE
SYN
FAST
SLOW
WAVE
T4
E
D
LED L30 flashing intermittently.
To exit, simply push the BALANCING and FREQUENCY (T4)
key again (BALANCING LED off).
5C) BALANCING (BALANCE PLUS)
It is possible to adjust the time (t) and amplitude of the cur-
rent (I) while the electrode stays in place simultaneously and
independently, using positive or negative values, guarantee-
ing perfect control of penetration and cleanliness, drastically
reducing side incisions.
For simultaneous setting of the parameters, following the in-
structions given in points 5A and 5B in succession, with the
help (if necessary) of the example shown below.
Display - +
t -15 65% 35%
I -20 120% 80%
I (A)
t (s)
6) FREQUENCY CONTROL IN AC (40 ÷ 250 Hz)
This controls the frequency for the various wave shapes, for
better directional control, reducing the thermally altered area,
with greater penetration and lower electrode consumption.
The high frequency makes it possible to weld very small thick-
nesses with excellent results, while the low frequency is ideal
for welding average thicknesses, or where edge preparation
is poor.
I
(A)
t
(s)
I
(A)
MIN 40 Hz
MAX 250 Hz
t
(s)
To regulate the FREQUENCY push the BALANCING and
FREQUENCY key (T4) twice (FREQUENCY LED flashing)
and use the ENCODER Knob (E) to regulate the value indi-
cated on the DISPLAY (D).
I
2
HOT
START
ARC
FORCE
PULSE
CYCLE
T
b
f
T
p
I
1
I
p
I
b PULSE
SYN
FAST
SLOW
WAVE
VRD
CYCLE
Ø
PULSE
SYN
FAST
SLOW
WAVE
T4
E
D
To exit, simply push the BALANCING and FREQUENCY (T4)
key again (FREQUENCY LED off).
7) Press the WELDING MODE SELECTION Key (T9) and go to
one of the 4 options available:
L5
2T
L6 4T
L7 CYCLE
L8 SPOT WELD
8) By pushing the WELDING PARAMETERS SE-
LECTION key a number of times it is possible to
set the various TIG WELDING PARAMETERS
(see the “TIG AC and DC Welding” paragraph -
WELDING PARAMETERS).
9) Once the all the selections/regulations indicated
above have been made, welding can begin.
10) During the welding process the DISPLAY shows the real Amps
(A) at which the operator is actually welding.
T9
L5
L6
L7
L8