Instruction manual

14
5.3 Connecting the gas hose.
WARNING!!
CYLINDERS CAN EXPLODE
IF DAMAGED
• Keep the cylinders in an upright position by chaining them
to their support.
• Keep the cylinders in a place where they cannot be
damaged.
• Do not lift the machine with the cylinder on its support.
• Never touch the cylinder with an electrode.
• Keep the cylinder away from the welding area and uninsu-
lated electric circuits.
• Cylinders containing inert gas have to be equipped with a
pressure reducer and a flowmeter.
• After having positioned the cylinder, connect the gas hose
that comes out from the rear of machine to the pressure
reducer output.
6 WELDING PERAMETER GUIDELINES
6.1 SHIELDING GAS
• The most commonly used shieling gas is ARGON ,however,
ARGON mixtures with a max. of 2% HYDROGEN can also
be used for welding stainless steel, and HELIUM or
ARGON/HELIUM mixtures can be used for welding copper.
These mixtures increase the heat generated by the arc.
If you are using helium gas, increase the flow rate (l/min) so
as to obtain a ratio 10 times the size of the electrode
(example: diam. 1.6x10 = 16 l./min. helium).
• Use protection lenses with shades D.I.N. 10 for up to 75A
and D.I.N. 11 for 75A and above.
• Inert gas flow must be regulated to a value ( l/min.)
approximately 6 times the diameter of the electrode.
• If accessories such as gas lenses are used, the gas flow
can be reduced to approx. 3 times the diameter of the
electrode.
• The diameter of the ceramic nozzle must be 4 to 6 times
larger than diameter of the electrode.
6.2 AC TIG WELDING is used for welding: Aluminium,
Magnesium, and Bronze
• To achieve the best welding results, you must become
familiar with all of the machine's functions
• Position selector (R) on A.C., selector (M) on and
selector (C) on (TIG). All other settings depend on the
Ø
▲
▲
1.6mm - 1/16"
1mm - 0.04"
0.5mm - 0.02"
2.4mm - 3/32"
3.2mm - 1/8"
4mm - 5/32"
70A ÷ 150A
25A ÷ 85A
15A ÷ 40A
150A ÷ 250A
200A ÷ 350A
300A ÷ 400A
50A ÷ 100A
-
-
100A ÷ 160A
150A ÷ 210A
200A ÷ 275A
70A ÷ 150A
-
-
140A ÷ 235A
225A ÷ 325A
300A ÷ 400A
30A ÷ 60A
20A ÷ 30A
10A ÷ 20A
60A ÷ 120A
80A ÷ 160A
100A ÷ 240A
50A ÷ 80A
20A ÷ 60A
5A ÷ 20A
80A ÷ 140A
100A ÷ 180A
150A ÷ 280A
20A ÷ 40A
-
-
40A ÷ 100A
60A ÷ 140A
80A ÷ 200A
30A ÷ 60A
-
-
60A ÷ 120A
80A ÷ 160A
150A ÷ 250A
Max. Penetration pos.
Zero balanced pos.
Max. Cleanness pos.
Tungsten
2% Thorium
Tungsten
0.8 % ZR
Tungsten
0.8 % ZR
tungsteno
0.8 % ZR
Tungsten
pure
Tungsten
pure
Tungsten
pure
Electrode. Type
4.1.2 TIG welding: Set selector (C) to then push the
torch button and regulate the current using knob (V).
5 OUTPUT WELDING CONNECTIONS
• The welding circuit should not deliberately be in direct or
iindirect contact with the ground conductor if not in the
workpiece.
• If grounding is deliberately done with the workpiece by
means of a ground wire, the connection must be as direct as
possible and it must be made with a wire having a section at
least equal to the ground lead. The connection must be
made to the workpiece and it msut be in the same place as
the ground lead either by using the ground lead clamp or a
second ground clamp placed close by.
5.1 Connecting the TIG torch.
Based on your work requirements, always use the shortest
torch (the length of the torch cable is intended) possilbe in
order to reduce the risk of HF interference to a minimum.
WARNING!!
ELECTRIC SHOCK CAN KILL
• Do not touch uninsulated live electric parts
• Do not touch the hot electrode either with your hands
or with your clothes.
• Insulate yourself both from the ground and the work-
piece.
• To avoid receiving high-frequency discharges, keep
the torch in good condition.
• Before connecting the torch turn the machine off.
• Insert the male plug of the torch cable into the negative
terminal and turn to the right until the connector locks. Make
sure that the fit is tight.
Select the diameter and type of electrode on the basis of
the metal to be welded and its thickness . The number of
output Amps needed and DC or AC welding will also
condition the selection of the proper electrode.
Connect the gas hose which comes out from the torch to
the 1/4 gas fitting (letter P) on the machine's front panel.
Insert the torch control plug into receptacle (Q) also located
on the machine's front panel.
5.2 Connecting the ground clamp
• Connect the male plug of the work lead (ground cable) to
the + or - terminal in accordance with the procedure used.
Insert and turn clockwise until the connector is snug.
• Connect clamp end of the work lead to the workpiece.
ELECTRODE AND CURRENT SELECTION GUIDE