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2.3 COOLING, OPERATING TEMPERATURE, WEIGHT
AND DIMENSIONS
Cooling
Operating temperature
Net weight
Dimensions in mm
(Lenght x Depth x Height)
2.4 GASES: SPECIFICATIONS AND WORKING CON-
DITIONS
Following are described the specifications of the used
gases, with their purity and working conditions:
GAS
TITLE
USED
Clean, dry and oil
free as per ISO
8573-1: 2010
Air
standard. Class
1.4.2 (particulate-
*
water-oil)
Argon
99.997%
*
for the Class 1.4.2, the ISO 8573-1 2010 standard
requires:
≤ 20,000 solid particles per m3 of air
• Particulate:
with size between 0.1 and 0.5 µm;
≤ 400 solid particles per m3 of air with
size between 0.5 and 1.0 µm;
≤ 10 solid particles per m3 of air with size
between 1.0 and 5.0 µm.
• Water:
the air pressure dew point must be below
or same as 3°C.
• Oil:
the total oil concentration must be below
or equal to 0.1 mg per m3 of air.
3 INSTALLATION
3.1 UNPACKING AND PLACING
The use of proper lifting and moving equipments is
strongly recommended.
The power source draws air from the rear and makes it
leak from the front grilles. Place the generator in order
to have a large ventilation area and keep a distance of at
least 1 m from any walls.
Do not stack the power source, nor overlay objects on it.
Place the power source on a substantially flat surface
and with a slope of not more than 10 °.
3.2 WELDING TORCH ASSEMBLY
After introducing the mobile fitting M into the protection
K, insert it onto the fixed fitting J, by screwing down the
fitting collar M to avoid air leaking that may jeopardize a
Air, with forced ventilation
-10 °C ÷ +40 °C
23 kg
286x590 x 406
MAX INLET
FLOW
PRESSURE
RATE
0.9 MPa
230 l/min
(9 bar/ 130 psi)
0.9 MPa
230 l/min
(9 bar/ 130 psi)
good operation.
Do not dent the contact tip, do not bend the mobile
fitting M pins.
Screw the protection K onto the panel.
3.3 START-UP
Only skilled personnel should install the machine.
All connections must be carried out according to
current regulations, and in full observance of safety
laws (CEI 26-36/IEC 60974-9 standards).
Connect the gas supply to C fitting making sure that the
equipment can supply adequate capacity and pressure to
the torch being used.
If the air is supplied from a compressed air cylinder, the
cylinder must be equipped with a pressure regulator;
never connect a compressed air cylinder to the ma-
chine reducer direct. Pressure may be higher than the
reducer capacity with consequent possible explosion
Connect the power cord A: the yellow-green cable wire
must be connected to an efficient system grounding
socket; the remaining wires must be connected to the
power supply line by means of a switch placed as close
as possible to the cutting area, to allow it to be quickly
shut off in case of emergency.
The capacity of the switch or fuses installed in series with
the switch must be equal to I1eff current drawn by the
device.
The current I1eff max absorbed is determined by reading
the technical data shown on the unit in correspondence
of the available supply voltage U1.
Any extension cords must be sized appropriately for the
absorbed current I1eff max.
4. USE
The type of torch is automatically recognised. Therefore,
when using a DAR torch, use of the interface kit (art. 441)
is required
4.1 CUTTING ( "CUT" OPERATING MODE)
Adjust the cutting current using knob H depending on:
- the type of material chosen and the thickness to cut;
- the gas used
following directions shown in the cutting tables.
To set the correct operating pressure, indicated on the
rear plate, proceed as follows:
- briefly press the torch button to command opening of
the output gas flow (given that the arc does not strike, the
torch releases gas for approx. 5 seconds);
- in this condition, using knob D, adjust the pressure to
the value indicated on the rear plate (5.5 – 6.0 bar for a
6 - 15 metre long torch).
The pressure is measured by pressure gauge Z.
- once the pressure is adjusted, lock knob D by pushing
it downward.
Press the torch trigger to strike the pilot arc. If you do not
start cutting, after 2 seconds the pilot arc goes out; to
turn it back on, press the trigger again.
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