The Pointing Out Of Any Difficulties And Their Elimination; Procedure For Welder Assembly And Disassembly; Special Functions - CEA Matrix 250 HF Bedienungsanleitung

NOTE: Programme sequences can be created by placing an
empty programme between saved ones.
NOTE: The value shown on the display during welding repre-
sents the effective current output with all types of control.
The digital control unit of the generator is fitted with a control
recognition device which allows it to identify which device is
connected and take action accordingly. To allow the command
recognition device to work correctly, connect (with the
machine switched off) the required accessory to the relative
connector and then switch on the welding machine with the
on/off switch.
NOTE: It is not possible to memorize or open programmes
when the remote controls are connected (except for the
torch with UP/DOWN commands).
If a remote control is connected (followed by self-acknowl-
edgement procedure) the machine will automatically return to
the manual-welding phase if it has been pre-set for automatic
welding.
The pointing out of any difficulties
and their elimination
The supply line is attributed with the cause of the most
common difficulties. In the case of breakdown, proceed as
follows:
1) Check the value of the supply voltage
2) Check that the power cable is perfectly connected to the
plug and the supply switch
3) Check that the power fuses are not burned out or loose
4) Check whether the following are defective:
• the switch that supplies the machine
• the plug socket in the wall
• the generator switch
NOTE: Given the required technical skills necessary for the
repair of the generator, in case of breakdown we advise you to
contact skilled personnel or our technical service department.
Procedure for cover assembly and
disassembly
Proceed as follows:
1) Unscrew the two screws fastening the handle.
2) Take off handle pulling it backwards.
3) Take off covering lid and unscrew the 3 screws fastening
the top.
4) Use both hands to push the top towards the front part free-
ing the back part.
5) Remove top by lifting with both hands.
Proceed vice versa for assembly.
Procedure for welder assembly
and disassembly
• Unscrew the 4 screws fastening the front rack panel.
• Remove control dials.
• Extract wiring connectors from electronic control board.
• Unscrew small supporting columns.
• Remove electronic control board by lifting it out of its sup-
ports.
• Proceed vice versa to assemble new electronic control
board.

Special functions

The MATRIX 250 HF allows some welding parameters to be
modified, thus providing a more versatile welding machine for
more expert welders.
Two special functions are provided for welders:
• Changing the minimum and maximum limits of parameters;
• Activation of special parameters (only valid for the TIG 'weld-
ing process' with HF ignition).
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