CEA MATRIX 250 AC/DC Manual De Instrucciones página 20

Weld parameters
ATTENTION: parameters shown on the display in the pic-
tures are purely meant as an indication.
RESETTING FACTORY SETTINGS
To reset the factory settings, proceed as follows:
1) With the welding machine switched off, press and hold
down the "welding mode" (Pos. 1, Fig. B) and "welding
process" (Pos. 2, Fig. B) buttons.
2) Starts the welder by turning the power switch to I.
3) After a few seconds, during which the display remains off,
the preset current value (80A) appears.
ATTENTION: Resetting factory settings deleted all previously
memorised welding programmes.
SOFTWARE VERSION DISPLAY
MATRIX 250 AC/DC is equipped with a digital control with
software pre-set in the factory on board. This software is sub-
ject to being continuously evolved and improved. The software
is identified by a specific number visualized on the display as
follows:
1) With the welding machine switched off, press
and hold down the SAVE button
2) Start up the welder by turning the main switch to position I
3) The type of software on board (e.g. b.01)
appears on the display for a few seconds
ELECTRODE WELDING (MMA)
1) Start up the welder by turning the main switch to position I
2) Press the "weld process" button and set on position:
• ELECTRODE for basic electrode welding with
automatic "arc force" and "hot start" devices
3) The following weld parameters can be set by
pressing the SET button repeatedly
• HOT START (0 ÷ 100): this supplies a current peak which
facilitates triggering the arc and the formation of the ideal
crater
• ARC FORCE (0 ÷ 100): this increases the energy of the arc
on poor welding conditions
• PRINCIPAL weld CURRENT I
4) Keep pressing the SET key for about 1 sec-
ond to leave the weld parameter setting
phase
• The GREEN LIGHT I
1
5) It is now ready for welding
6) The digital display visualizes effective current
used during welding
TIG WELDING AC/DC
1) Start up the welder by turning the main switch to position I
2) Press the "weld process" button and set on:
• TIG "HF AC" for TIG weld on alternating cur-
rent with high frequency arc strike
• TIG "HF DC" for TIG weld on direct current
with high frequency arc strike
• TIG "lift" for TIG weld on direct current without
high frequency arc strike
ATTENTION: The correct "lift" type arc strike is only obtained
by pressing the torch button after touching the piece to be
welded with the electrode beforehand.
3) Press the "weld mode" button and set on one of the 4
options available:
20
(5 ÷ 250 A)
1
is on
OR
OR