Tig Welding - Cebora POWER TIG 1665 DC HF Manual De Instrucciones

- Select the MMA procedure by pressing the button A:
LED B lit.
- Adjust the current based on the diameter of the elec-
trode, the welding position and the 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

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 neg-
ative pole (-) of the welding machine.
Connect the torch connector to the welding machine
connector Y.
Connect the torch gas hose fitting to the fitting Z on the
machine, and the gas hose from the cylinder pressure
regulator to the gas fitting AD on the rear panel.
Turn on the machine.
Do not touch live parts and output terminals while the
machine is powered.
The first time the machine is turned on, select the mode
using the push-button A and the welding parameters by
means of the key R and the knob O as described in para-
graph 3.2.
The flow of inert gas must be set to a value (in liters per
minute) approximately 6 times the diameter of the elec-
trode.
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 x10= 16 lt./min of Helium).
Use D.I.N. 10 protective glasses for up to 75A, and D.I.N.
11 from 75A up.
3.6. SAVING
You may save parameters only after welding.
Pressing the push-button Q 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 work-
ing current is displayed. Follow the instructions in para-
12
graphs 3.2 and 3.5, then proceed as follows to save the
data in the program P01:
· Briefly press the push-button Q (mem+mem-) the mes-
sage P01 will appear flashing.
· Press push-button Q 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 Q as many
times as necessary to display the desired program. P01
will be displayed the next time the machine is turned on.
PRESSING THE Q 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 Q briefly and select the desired
program number.
· The symbol of free programs is flashing.
· Press the push-button A and select the welding proce-
dure and mode (paragraph 3.1).
· Turn the knob O and set the welding current.
· If the TIG procedure has been selected, activate the LED
V (post gas) by means of the push-button R, and set the
desired value via the knob O (paragraph 3.1.)
· If you wish to adjust the "slope" times or other parame-
ters, after making these adjustments which are neces-
sary in order to weld, follow the steps described in para-
graph 3.1.
· Weld, even briefly, and decide where to save
· To save in the previously selected program, press the
button Q 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 Q, then hold down the
push-button Q 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
· After turning on the machine, select the parameters to
be edited and edit them.
· Weld, even briefly.
· Hold down the Q 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 Q until the desired program is
displayed.
· Hold down the Q button until the save is confirmed (pro-
gram symbol changes from flashing to steady).