6932400020
13
3) With the Encoder
15
select a program number
from 0 to 59 (the 60 is a factory default).
4) Press button
13
to store the parameters.
RECALL THE PARAMETER
1) Press buttons
10
and
12
together
2) The Display will show the wording "PRG"
3) With the Encoder
15
select the number of
program stored.
4) Press button
14
(Set Prg) to recall the
parameter.
MAIN FUNCTIONS
TIG 2T
TIG 4T
TIG DUAL-TIG™
The function Dual-Tig™ allows to use 2 current
level switching from the main and base current by
simply press quickly the trigger torch.
TIG AC
Use Encoder
8
for fine adjustment of the AC
Squarewave Frequency from 20 - 200 Hz
Use Encoder
9
for fine adjustment of the
Positive/Negative Balance from 10% - 90%.
Percentage of Balance shown refers to the
Negative ‘melting effect’ of the arc. Below an
example of 2 extreme conditions.
Case
A
: Maximum cleaning, minimum penetration,
Tungsten burn-back.
Case
B
: Maximum penetration, minimum cleaning,
limited Tungsten electrode wear out.
After many years of experience and study an
optimum compromise is estimated with a balance
of 80% and 80Hz of Frequency.
On
Arc on
Arc off
Post Gas time
t
t
Off
t
slope
1/4 t
On
Off
Arc on
t
t
On/Off
t slope
Arc off
Post Gas time
On
Off
1/4 t
On
Off
Arc on
Arc off
Post Gas time
t
t
On/Off
t
slope
1/4 t
I
OUT
(A)
A
Pre Gas
A
Pre Gas
A
Torch trigger
Pre Gas
Torch trigger
Torch trigger
Summary of Contents for 600344000L
Page 29: ...6932400020 29 EXPLODED VIEW TIG uP 293H AC DC EXPLODED VIEW TIG uP 403H AC DC 66 ...
Page 31: ...6932400020 31 WIRING DIAGRAM TIG uP 293H AC DC WIRING DIAGRAM TIG uP 403H AC DC ...
Page 33: ...6932400020 33 WELDING TABLE STEEL ...
Page 34: ...6932400020 34 WELDING TABLE ALLUMINIUM ...
Page 35: ...6932400020 35 Info www stelgroup it tel 39 0444 639525 ...
