Tig Welding; General Notes - Cebora INVERTER TIG Manual De Instrucciones

W - Slope down Led.
This is the time in which the current re-
aches the minimum value and the arc
shuts down (0-10 sec.).
X - Post-gas Led.
Sets gas output time when welding is
over. (0-30 sec.).
LEDS THAT MAY BE SELECTED ONLY IN TIG AC (AL-
TERNATING CURRENT) WELDING MODE:
AO Start led
Sets the "hot start" level to maximize TIC
AC ignitions for each electrode diameter
When this led lights the display O will display a digital va-
lue referred to the electrode diameters and the operator
may use the knob AA to set the diameter being used and
obtain a good start immediately. Range from 0.5 to 4.0.
Hz Q led
Sets the frequency of the alternating cur-
rent Range from 50 to 150 Hz.
Led R - Wave balance setting
Sets the percentage of the negative semi-
wave PEn (penetration ) by means of knob
AA; the value may change from 1 to 10.
Sets the percentage of the positive semi-wave CLn (clea-
ning ) by means of knob AA; the value may change from
1 to 10. The recommended setting value is 0.
Y Led.
Led that shows the correct operation of
the device which reduces risks of electric shock.
BC - 10-pin connector
Remote controls described in paragraph 5
must be connected to this connector.
Between pin 3 and 6 a clean contact is
available that signals the arc ignition (Max 0.5 A - 125
VAC / 0.3 A - 110 VDC / 1A - 30 VDC).

3.3. GENERAL NOTES

Before using this welding machine read carefully CEI 26-
23 / IEC-TS 62081 standards and check integrity of cable
isolation, electrode clamp, sockets and plugs and that
the section and length of welding cables conform to the
used power.
3.4. MMA WELDING WITH COVERED ELECTRODES
- This welding machine is suitable for welding all types of
electrodes, with the exception of cellulosic (AWS 6010).
- Check that switch BE is in O position, then connect the
welding cables in compliance with the polarity requested
by the manufacturer of the electrodes you are going to
use; connect the earth cable terminal to the workpiece as
close as possible to the welding point and make sure that
there is a good electric contact.
- Do NOT touch the torch or electrode clamp simultane-
14
ously and the mass terminal.
- Turn the machine on using the switch BE.
- Select MMA process, by pressing button AT, led AW
is on.
- Adjust the current according to the electrode diameter,
welding position and type of joint to be made.
- Always remember to shut off the machine and remove
the electrode from the clamp after welding.

3.5. TIG WELDING

If the TIG AC is selected you can weld aluminium,
aluminium alloys, brass and magnesium; if the TIG DC
mode is selected you can weld stainless steel,
iron and copper.
Connect the mass cable connector to the positive pole (+)
of the welding machine, and the terminal to the workpiece
as close as possible to the welding point, making sure
there is good electrical contact.
Connect the power connector of the TIG torch to the neg-
ative pole (-) of the welding machine.
Connect the torch connector to connector BC of the
welding machine.
Connect the fi tting of the torch gas hose to the BD ma-
chine connector and the gas hose coming from the cyl-
inder pressure regulator to the gas fi tting BH.
3.5.1 Cooling unit(optional for Art. 1341).
If you use a water cooled welding torch, use the cooling
unit.
Insert the torch cooling hoses into the fi ttings of the cool-
ing unit, being careful to correctly place the delivery and
return.
3.5.1.1 Description of protections.
- Coolant pressure protective device.
This protection is achieved by means of a pressure switch,
inserted in the fl uid delivery circuit, which controls a micro
switch. Low pressure is indicated by the fl ashing mes-
sage H2O on the display U.
3.5.1.2 Instructions
Unscrew the cap and fi ll the tank (the unit is supplied with
approximately one liter of fl uid).
It is important to periodically check, through the slot , that
the fl uid remains at the "max" level".
As a coolant, use water (preferably deionised) mixed with
alcohol in percentages defi ned according to the following
table:
temperature
-0°C up to –5°C
-5°C up to –10°C
If the pump turns with no coolant present, you must re-
move all air from the tubes.
In this case shut off the power source, fi ll the tank, con-
nect one hose to fi tting (
the tank.
Insert the pressure switch connector and the power cord
into the sockets BR and BQ.
- Turn the power source on for approximately 10 to 15
seconds and the N connect the hoses again.
Water/alcohol
4L/1L
3.8L/1.2L
) and insert the hose end into