CEA RAINBOW 200 HF Manual De Instrucciones página 18

FINAL weld CURRENT (5 ÷ 200 A)
ATTENTION: only programmable with
4 STROKE or CYCLE functions on
POST-GAS time (0,5 ÷ 25 sec)
5) Keep pressing the
SET/PROG key for
about 1 second to
leave the weld parame-
ter setting phase
6) TIG weld as desired
NOTE: The display will
visualize the current value
used for welding if the
GREEN LED I
continuously during wel-
ding
TIG WELDING WITH SPOT-WELD
FUNCTION ON
1) Start up the welder by turning the
main switch to position I
2) Press the "weld mode"
button and set to
SPOT-WELD position
3) Press the SET/PROG
button until the corre-
sponding led starts
flashing
4) Turn the knob to set to
desired SPOT-WELD
TIME (0,5 ÷ 5 sec)
5) Now continue in the same way as
for normal TIG welding, setting the
various parameters as indicated in
the TIG WELD procedures
PULSATING TIG WELD
Pulsating TIG welding can be done in
two ways with RAINBOW 200 HF:
• ON PULSE
Pulsating TIG weld with manually set
weld parameters;
• EASY PULSE
Pulsating TIG weld with weld parame-
ters set in synergy.
NOTE: Pulsation is automatically cut off
while the current is on INITIAL and
FINAL.
1) Start up the welder by turning the
main switch to position I
stays on
1
PEAK CURRENT I
BASIC CURRENT I
PULSATION FREQUENCY f (0,5 ÷ 500
Hz)
4) TIG-weld as desired
2) Press the "pulsation"
button until the desired
function is working
3) Set the following pulsa-
tion parameters by
pressing the SET/
PROG button repeat-
edly
(5 ÷ 200 A)
p
(5 ÷ 200 A)
b
NOTE: setting the value of
a parameter (usually I )
p
while EASY PULSE is
working, will give the
values of the other para-
meters (I , f) in synergy
b
Keep pressing the SET/
PROG key for about 1 sec-
ond to leave the weld
parameter setting phase
18
NOTE: The RED I
GREEN I leds will stay on
1
continuously during the
weld process and the
display will visualize the
current value used for wel-
ding.
TIG PULSATING WELDING WITH
CYCLE FUNCTION ON
2 different levels of pulsating current (I
and I ) can be used for welding with this
2
function. Here also welding can be done
in the two ways ON PULSE and EASY
PULSE.
It is also necessary to set the 2nd level
PEAK CURRENT (I ) (apart from the
2p
pulsating parameters I , I
b
CYCLE function on. The other 2nd level
pulsating parameters (BASIC CUR-
RENT I and FREQUENCY f) are
2b
obtained in synergy. FREQUENCY
remains constant while the 2nd level
BASIC CURRENT (I ) is in proportion to
2b
the ratio between the 1st level currents.
ON PULSE AND EASY PULSE
METHODS
1) Start up the welder by turning the
main switch to position I
2) Press the "weld mode"
button and set on
CYCLE
ON PULSE METHOD
3A)Press the "pulsation"
button until the ON
PULSE function is
working
4A)Press the SET/PROG
key until the GREEN
led I and the RED led
1
I will start flashing;
p
adjust the 1
PEAK CURRENT I
÷ 200 A); value by tur-
ning the special dial.
and
p
1
, f) with the
p
st
level
(5
1p