Tig Welding; Maintenance; Remote Controls And Accessories - CEA MATRIX 2200 E Manuel D'instructions

A fairly approximate indication of the average current to use in
the welding of electrodes for ordinary steel is given by the follow-
ing formula:
I = 50 × (Øe - 1)
Where:
I = intensity of the welding current
Øe = electrode diameter
Example:
For electrode diameter 4 mm
I = 50 × (4 - 1) = 50 × 3 = 150A

TIG welding

TIG welding melts the metal of the workpiece, using an arc struck
by a tungsten electrode. The fusion bath and the electrode are
protected by gas (Argon). This type of welding is used to weld thin
sheet metal or when elevated quality is required.
1) Connecting the welding cables (Fig. C):
• Connect one end of the gas hose to the gas connecter on
the TIG torch and the other end to the Argon cylinder and
open it.
• With the machine switched off:
- Connect the ground cable to the snap-on connector
marked + (positive).
- Connect the relative ground clamp to the workpiece or
to the workpiece support in an area free of rust, paint,
grease, etc..
FIG. B
FIG. C
- Connect the TIG torch power cable to the snap-on con-
nector marked - (negative).
2) Start the welding machine by selecting Pos. 1 on the line
switch (Pos. 5, Fig. A).
3) Make the adjustments and select the parameters on the MX
22 control panel (read the enclosed manual carefully).
4) Open the gas cylinder and regulate the flow by adjusting the
valve on the TIG torch by hand.
5) Ignite the electric arc by contact, using a decisive, quick move-
ment at the welding current set ("Lift" type ignition - Fig. D).
To end welding:
• Lift the torch slowly, at a certain point the welding current
decreases, and then stop.
• The welding machine follows an automatic down slope
along with extinguishing of the arc.
6) When you have finished welding remember to shut the valve
on the torch and the gas cylinder.

Maintenance

ATTENTION: Before carrying out any inspection of the inside of
the generator, disconnect the system from the supply.
SPARE PARTS
Original spare parts have been specially designed for our equip-
ment. The use of non-original spare parts may cause variations in
performance or reduce the foreseen level of safety.
We decline all responsibility for the use of non-original spare parts.
GENERATOR
As these systems are completely static, proceed as follow:
• Periodic removal of accumulated dirt and dust from the inside
of the generator, using compressed air. Do not aim the air jet
directly onto the electrical components, in order to avoid dam-
aging them.
• Make periodical inspections in order to individuate worn cables
or loose connections that are the cause of overheating.

Remote controls and accessories

MATRIX 2200 E generators can be fitted with various remote con-
trol devices and accessories, including:
• CD 6 manual remote control.
When this accessory is activated the welding current can only be
remote controlled, and this value will be shown on the welding ma-
chine's display.
The digital control unit of the generator is fitted with a control rec-
ognition device which allows it to identify which device is connect-
ed and take action accordingly.
The remote control can be connected whether the welding ma-
chine is on or off.
NOTE: The MX control panel has a STAND-BY function that, when
the remote control is on, switches off the inverter when the mini-
mum welding current value is reached (to reinstate normal, correct
functioning of the machine, increase the welding current value by
rotating the remote control knob).
FIG. D
10