CEA RAINBOW 200 HF Manual De Instrucciones página 17

ATTENTION: iThe correct "lift" type
arc strike is only obtained by pressing
the torch button after touching the piece
to be welded with the electrode befo-
rehand.
3) Press the "weld mode" button and
set on one of the 4 options avail-
able:
• 2 STROKE
The TIG weld cycle is
done by pressing the
torch button, while weld-
ing will stop when you
release it.
• 4 STROKE
TIG welding is done as
follows:
A) Pressing the torch
button strikes up the
arc and the current
stays at the INITIAL
value
B) Peleasing the torch
button will start the
SLOPE UP (if pre-
sent) and the PRIN-
CIPAL CURRENT
will take itself to
value I
C) Pressing the torch
button will start the
SLOPE DOWN (if
present) and the cur-
rent will take itself to
the FINAL value
(crater current)
D) Releasing the button
will finish the weld
cycle.
1
PRE-GAS time (0,05 ÷ 1 sec)
INITIAL weld CURRENT (5 ÷ 200A)
ATTENTION: only programmable with
4 STROKE or CYCLE functions on
• CYCLE
TIG welding is done as
follows with this function
on:
• pressing the torch but-
ton will strike up the
arc and the current
stays at the INITIAL
value
• releasing the torch
button will start the
SLOPE UP (if present)
and the current will
take itself to the PRIN-
CIPAL value (I )
1
• pressing and releasing
the torch button for
less than 1 second,
the weld current will
take itself to the DI
CYCLE (I
) value; it
2
will be possible to
move an infinite num-
ber of times between
the two current levels
(I , I ) by repeating this
1 2
operation
• pressing the torch but-
ton and keeping it
pressed down (for
more than 2 seconds)
will start the SLOPE
DOWN (if present)
and the current will
take itself to the FINAL
value (crater current)
• releasing the torch
button will finish the
weld cycle
• SPOT-WELDING
Spot-welding can be
done for the set time (in
seconds) by pressing
the torch button after
which the arc will auto-
matically switch off
4) The following weld
parameters can be set
by pressing the SET/
PROG button repeat-
edly
17
SLOPE UP time (0 ÷ 5 sec)
PRINCIPAL weld CURRENT I
A)
CYCLE CURRENT I (5 ÷ 200 A)
2
ATTENTION: programmable only with
CYCLE function on
PEAK CURRENT I (5 ÷ 200 A)
p
ATTENTION: programmable only with
ON PULSE or EASY PULSE functions
on
BASIC CURRENT I (5 ÷ 200 A)
b
ATTENTION: only programmable with
ON PULSE or EASY PULSE on
PULSATION FREQUENCY f (0,5 ÷ 500
Hz)
ATTENTION: programmable only with
ON PULSE or EASY PULSE functions
on
SLOPE-DOWN time (0 ÷ 8 sec)
(5 ÷ 200
1