Tig Welding - Elettro TIG 4080 DC HF Manual De Instrucciones

If you wish to adjust the Hot-start (LED G) and Arc force
functions (LED I), see the previous paragraph.

3.5 . TIG WELDING

This welding machine is suitable for welding stainless steel,
iron, or copper using the TIG procedure. Connect the earth
cable connector to the positive pole (+) of the welding
machine, and the clamp 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
negative pole (-) of the welding machine.
Connect the torch connector to the welding machine
connector B1.
Connect the torch gas hose fitting to the fitting A8 on the
machine, and the gas hose from the cylinder pressure
regulator to the gas fitting B4 on the rear panel.
If using a water-cooled torch, use the cooling unit.
After filling the tank with coolant, connect the plug of the
mains cable to the socket B6 of the welding machine, then
connect the 10-pin male patch connector to the connector
B3.
Turn on the machine.
Do not touch live parts and output terminals while the
machine is powered.
The first rime the machine is turned on, select the mode
using the push-buttons C, Z and A4 and the welding
parameters by means of the key H and the knob Q as
described in paragraph 3.2 The flow of inert gas must be set
to a value (in liters per minute) approximately 6 times the
diameter of the electrode.
If you are using gas-lens type accessories, the gas
throughput may be reduced to approximately 3 times the
diameter of the electrode. The diameter of the ceramic
nozzle must be 4 to 6 times the diameter of the electrode.
The most commonly used gas is normally ARGON, because
it is less costly than other inert gases, but you may also use
blends of ARGON with a maximum of 2% HYDROGEN for
welding stainless steel, and HELIUM or ARGON-HELIUM
blends for welding copper.
These blends increase the heat of the arc while welding, but
are much more expensive.
If you are using HELIUM gas, increase the liters per minute
to 10 times the diameter of the electrode (Ex. diameter 1.6 x
10= 16 It./min of Helium).
Use D.I.N. 10 protective glasses for up to 75A, and D.I.N. 11
from 75A up.
3.5.1 Cooling unit (optional art. 560101).
When using a water-cooled torch, use the cooling unit.
To select the cooling unit working mode, proceed as follows:
1. Select any TIG procedure.
2. Press the key U and while holding it down, press the key
H. Hold both keys down until the display T reads H2O.
3. Select the working mode with the knob Q
1 = Unit off,
2 = Continuous operation,
3 = Automatic operation.
To exit the selection menu briefly press U.
N.B. "Automatic operation" means that the cooling unit is
started when the torch button is pressed and stopped after
approximately 2 minutes from releasing the torch button.
Caution! If electrode welding is selected, cooling is not
active and cannot be selected. Upon machine power-on, the
display T may show the flashing message H2O.
3.6. SAVING
You may save parameters only after welding.
Pressing the push-button U briefly makes a selection; held
down for more than 3 seconds, it saves the data.
Each time it is turned on, the machine always shows the
last welding condition used.
3.6.1. Saving data from the PL program
Using the machine for the first time
When the machine is turned on, the display shows the
symbol PL; this disappears after 5 seconds, and a working
current is displayed. Follow the instructions in paragraphs
3.2 and 3.5, then proceed as follows to save the data in the
program P01:
• Briefly press the push-button U the message P01 will
appear flashing.
• Press push-button U for more than 3 seconds, until the
symbol P01 stops flashing: at this point, the data have been
saved.
• Obviously, if you wish to save in a program other than
P01, you should briefly press the push-button U as many
times as necessary to display the desired program. P01 will
be displayed the next rime the machine is turned on.
PRESSING THE U PUSH-BUTTON BRIEFLY MAKES A
SELECTION, WHILE HOLDING IT DOWN FOR MORE
THAN 3 SECONDS SAVES THE DATA.
3.6.2. Save from a free program
The operator may edit and save a selected program by
proceeding as follows:
• Press the push-button U briefly and select the desired
program number.
• The symbol of free programs is flashing.
• Press the push buttons C, Z and A4 and select the
welding procedure and mode (paragraph 3.2).
• Turn the knob Q and set the welding current.
• If the TIG procedure has been selected, activate the LED
A5 (post gas) by means of the push-button H, and set the
desired value via the knob Q (paragraph 3.2.)
• If you wish to adjust the "slope" times or other parameters,
after making these adjustments which are necessary in
order to weld, follow the steps described in paragraph 3.2.
• Weld, even briefly, and decide where to save
• To save in the previously selected program, press the
button U for more than 3 seconds, until the number stops
flashing.
• To save in a different program, make your selection by
briefly pressing the push-button U, then hold down the push
button U for more than 3 seconds.
3.6.3. Save from a saved program
Beginning with a previously saved program, the operator
may edit the data in memory to update the program itself, or
to find new parameters to save in another program.
3.6.3.1 Update
• Alter turning on the machine, select the parameters to be
edited and edit them.
• Weld, even briefly.
• Hold down the U button for more than 3 seconds, until the
save is confirmed (program symbol changes from flashing
to steady).
3.6.3.2 Save in a new program
• After turning on the machine, select the parameters to be
edited and edit them.
• Weld, even briefly.
• Briefly press the selector U until the desired program is
displayed.
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