8
ENGLISH
Introduction
Thank you for purchasing one of our
products. Before using the equipment
you should carefully read the instruc-
tions included in this manual. In order to
get the best performance from the
system and ensure that its parts last as
long as possible, you must strictly follow
the usage instructions and the mainte-
nance regulations included in this
manual. In the interest of customers,
you are recommended to have mainte-
nance and, where necessary, repairs
carried out by the workshops of our ser-
vice organisation, since they have suita-
ble equipment and specially trained per-
sonnel available. All our machinery and
systems are subject to continual deve-
lopment. We must therefore reserve the
right to modify their construction and
properties.
Descrizione
Built according to the very latest
IGBT
based inverter technology, these DC
power sources thanks to their excellent
arc characteristics, are recommended
for highest standard applications with
any electrode. Suitable to be used in shi-
pyards, steel construction, pipe welding
and maintenance,
MATRIX 250 E
ensure an extraordinary stability of the
welding parameters and their "fast dyna-
mic characteristic" enables to achieve
quality results even with the most diffi-
cult cellulosic and basic electrodes.
MATRIX 250 E
also allows the possibi-
lity of
TIG
welding with
"lift"
mode arc
striking.
FEATURES
• Excellent welding characteristics with
any type of electrode, including cellu-
losic;
• Reduced weight and size, easy-to-
carry;
• Adjustable”arc force”;
• Innovative and compact design;
• Metallic main structure with shock-
proof plastic front panel;
• Control panel protected against acci-
dental impact;
• Robust handle integrated into the
chassis;
• Sloping front panel, easy to read and
adjust and highly visible from any
direction;
• IP 23 protection class and dust-proof
electronic components, thanks to the
innovative "Tunnel" fan cooling
system, allow operation in the tou-
ghest work environments;
• Automatic
"hot start"
to improve the
arc striking with the most difficult
electrodes;
•Electrode
Antisticking
function;
• TIG welding with thermal controlled
(TCS)
"lift"
type striking reducing tun-
gsten inclusions to a minimum and
allowing to also strike on sharp edges;
• The generator also conforms to all
European Union standards and direc-
tives in force.
Introduction 8
Descrizione 8
Technical data 9
Usage limits (ISO/IEC 60974-1) 9
Safety standards 9
Installation 10
Connection to the
electrical supply 10
Norme d’uso 10
Connection of the
welding cables 11
Prior to welding 11
Maintenance 11
The pointing out of any difficulties
and their elimination 12
Adjustment of electronic circuit
board 75
Wiring diagram 76
Key to the electrical diagram 77
Colour key 77
Meaning of graphic symbols on
machine 82
Meaning of graphic symboles on
rating plate 84
Spare parts list 86-88
Ordering spare parts 90
Table 1
Model
MATRIX 250 E
TIG DC MMA
Three phase feeding 50/60 Hz V 400 400
Adjustment field A 5 ÷ 250 5 ÷ 250
Maximum potential kVA 7 7
Secondary idle voltage V 95 95
100% usable current A 170 160
60% usable current A 200 200
35% usable current A 250 250
Usable electrodes 1,6 ÷ 5
Insulation class H
Protection class IP 23
Dimensions
mm 500-425-220
Weight kg 19
UK
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