9
with the technical prescriptions of the
EN 50199 standard and is foreseen to
be used in all industrial spaces and
not in spaces for domestic use. If elec-
tromagnetic disturbances should
occur, it is the user’s responsibility to
resolve the situation with the technical
assistance of the producer. In some
cases the remedy is to schormare the
welder and introduce suitable filters
into the supply line.
MATERIALS AND DISPOSAL
• These machines are
built with materials that
do not contain sub-
stances that are toxic or
poisonous to the opera-
tor.
• During the disposal phase the
machine should be disassembled and
its components should be separated
according to the type of material they
are made from.
HANDLING AND STOCKING
COMPRESSED GASES
• Always avoid contact
between cables carry-
ing welding current and
compressed gases cyl-
inder and their storage
systems.
• Always close the valves on the com-
pressed gas cylinders when not in
use.
• The valves on Inert gas cylinder
should always be fully opened when in
use.
• The valves on flammable gases
should only be opened full turn so that
quick shut off con be mode in an
emergency.
• Care should be taken when moving
compressed gas cylinders to avoid
damage and accidents which could
result in injury.
• Do not attempt to refill compressed
gas cylinders, always use the correct
pressure reduction regulators and
suitable base fined with the correct
connectors.
• For further information consult the
safety regulation governing the use of
welding gases.
Installation
The installation site for the system must
be carefully chosen in order to ensure its
satisfactory and safe use.
The user is responsible for the installa-
tion and use of the system in accor-
dance with the producer’s instructions
contained in this manual.
Before installing the system the user
must take into consideration the poten-
tial electromagnetic problems in the
work area. In particular, we suggest that
you should avoid installing the system
close to :
• signalling, control and telephone
cables
• radio and television transmitters and
receivers
• computers and control and measure-
ment instruments
• security and protection instruments
Persons fitted with pace-makers, hear-
ing aids and similar equipment must
consult their doctor before going near a
machine in operation. The equipment’s
installation environment must comply to
the protection level of the frame i.e. IP
23 (IEC 529 publication). This system is
cooled by means of the forced circula-
tion of air, and must therefore be placed
in such a way that the air may be easily
sucked in and expelled through the
apertures made in the frame.
Connection to the
electrical supply
Before connecting the welder to the
electrical supply, check that the
machine’s plate rating corresponds
to the supply voltage and frequency
and that the line switch of the welder
is in the "O" position.
Use the welder’s own plug to connect it
up to the main power supply. Proceed as
follows if you have to replace the plug:
• 2 conducting wires are needed for
connecting the machine to the supply
• the third, which is YELLOW GREEN in
colour is used for making the
"EARTH"
connection.
Connect a suitable load of norma-
lised plug (2p + t) to the power cable
and provide for an electrical socket
complete with fuses or an automatic
switch. The earth terminal must be
connected to the earth conducting
wire (YELLOW-GREEN) of the supply.
Table 2 shows the recommended load
values for retardant supply fuses chosen
according to the maximum nominal cur-
rent supplied to the welder and the nom-
inal supply voltage.
NOTE 1:
any extensions to the power
cable must be of a suitable diameter,
and absolutely not of a smaller diameter
than the special cable supplied with the
machine.
NOTE 2:
it is better not to connect the
welder to motor generators, as the volt-
age supplied by these systems is well
known for its instability.
Table 2
Model
RAINBOW 170 HF
TIG DC
MMA
I
2
Max nominal
A
170 (20%)*
150 (25%)*
Installation power
kVA
3,2
3,9
Nominal current "gl" class fuses
A
16
16
U1=220 V - 230 V - 240 V
Supply connection cable
Length
m
2,2
2,2
Section
mm
2
2,5
2,5
Earth cable
mm
2
16
16
* Service factor
