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Main switch "On/Off"
At the rear of the apparatus (see fig. 7)
Digital display
o
The digital screen displays the desired welding
current level.
o
It may display the usual settings required for TIG
welding as well (see
Welding process selector
o
manual coated stick electrode (MMA)
o
in TIG
o
in pulsed TIG
o
Each short action on this key allows to jump from
one process to the next, downwards, in loop.
The corresponding LED indicates which process
is on.
TIG process control selector
o
Mode 2 steps: ignition by contact
o
Mode 4 steps: ignition by contact
o
Mode 2 steps: contact free ignition via HF
o
Mode 4 steps: contact free ignition via HF
o
Each short action on this key allows to jump from
one process to the next, downward, in loop. The
corresponding LED indicates which mode has
been selected. This selector is operative only
when TIG or pulsed TIG mode has been
selected by
.
Incremental potentiometer
o
Stepless adjustment of the welding curent value
within the range 5 A - 140 A.
o
Setting of parameters
welding after selection by
TIG parameters selector
o
Allows to call in a preset ranking all parameters
for which an adjustment is required (gas preflow
duration
, current upslope
, current downslope
and gas post-flow duration
o
Each short action on this key allows to jump from
one parameter to the next, from the left end to
the right end of welding cycle pictogram, in loop.
The corresponding LED
parameter is selected. The required value is
adjusted by either clockwise or counter-
clockwise
rotation
potentionmeter
.
o
Should the potentiometer
over 3 seconds, the display automatically
switches back to "welding current setting" and
the LED
is lit.
Overheating warning signal
o
This LED lights up in case of overheating.
.)
-
specific to TIG
.
, pulse fequency
, crater filler current
.)
-
indicates which
of
the
incremental
stay motionless for
Gas pre-flow duration
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
between 0 and 10 seconds.
o
Valid only if TIG process with contact free
ignition (HF) has been selected.
Current upslope
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
between 0 and 20 seconds with the potentio-
meter
.
Pulse frequency
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
between 0,5 and 250 Hz (stepwise variation).
o
Valid only if pulsed TIG process has been
selected.
Welding current value
o
As soon as the apparatus is switched on, the
LED
automatically lights up.
o
Actuate the potentiometer
value between 5 and 140 A.
Current downslope
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
between 0 and 20 seconds.
Crater filler intensity
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
value between 5 and 140 A.
Gas post-flow duration
o
Actuate the selector
the LED
lights up.
o
Actuate the potentiometer
between 0 and 25 seconds.
"Reset" function
o
All TIG parameters can be set back to the
Castolin original factory settings.
o
This is achieved by simultaneously depressing
and holding down for about 3 seconds the two
selectors
switched on.
o
Once setting back is completed, the digital
display
indicates "80 A".
o
Factory settings are:
- Gas pre-flow:
- Current upslope:
- Frequency:
- Welding current:
- Downslope:
- Crater filler current:
- Gas post-flow:
18
to call for this parameter;
to set a value
to call for this parameter;
to set a value
to call for this parameter,
to set a value
to set a current
to call for this parameter;
to set a value
to call for this parameter;
to set a current
to call for this parameter;
to set a value
and
, while the machine is
0 seconds
0 seconds
125 Hz
80 A
0 seconds
5 A
3 seconds
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