Protection Gas; Noise; First Aid - Helvi COMPACT 220AC/DC Manual De Instrucciones

Before you start welding, ventilate all areas that
are potentially flammable.
Do not use the equipment in places with signi-
ficant concentrations of dust, flammable gas or
combustible liquid vapor.
The generator must be placed on solid, smooth
floor, and should never lean against walls.
Do not weld or cut containers filled with gaso-
line, lubricant or other flammable substances.
Do not weld or cut near ventilation ducts, gas
ducts or any other installation which could ac-
celerate the spreading of a fire.
After concluding the welding operation, always
make sure that no incandescent or burning ma-
terial has been left in the area.
Make sure the ground connection is good; a
defective ground connection may result in an
electric arc which can become the cause of a
fire.

PROTECTION GAS

Strictly follow all instructions of use and handling
provided by the gas supplier. In particular: the
areas of storage and use must be open and
ventilated, sufficiently away from the working
area and from sources of heat (< 50°C). Fix the
cylinders, protect them from impact and from
any technical accident.
Make sure the cylinder and the pressure gauge
correspond to the gas required for the welding
operation.
Never lubricate the cylinder taps and do not
forget to remove all gas from the same before
connecting the pressure gauge. The protection
gases must be dispensed at the pressures re-
commended for the different welding/cutting
procedures.
Periodically inspect the ducts and rubber tubes
to make sure they are properly sealed. Never
use a source of flame/fire to detect gas leaks;
use a suitable detector or brush the suspected
area with soapy water.
Fig.10
Warning: Improper use of the gas,
in particular in small spaces (cargo
holds, tanks, reservoirs, silos etc), will
expose the user to the following risks:
1 – Suffocation or intoxication with gas and
gassy mixtures containing less than 20% of
carbon dioxide (these gases replace oxygen in
the air);
2 – Fire and explosion with gassy mixtures
containing hydrogen (hydrogen is light and
flammable; it accumulates beneath ceilings or
in nooks, resulting in risk of fire and explosion).

NOISE

The safety prescriptions regarding workers'
protection against the risks derived from expo-
sure to noise are treated by European Directive
2003/10/CE of 6 February 2003, which descri-
bes the need to adopt measures to promote sa-
fety, hygiene and good health in the workplace.
The noise emitted by the welding and cutting
generators depends on the intensity of the
welding/cutting current, on the procedure used
(MIG, pulsed MIG, TIG etc), on the work envi-
ronment (size of the area, reverberation of the
walls etc).
Under normal work conditions, the noise emit-
ted by a welding/cutting generator does not
exceed 80 dBA; should it be necessary to emit
noise above 85 dBA, the worker involved must
be equipped with suitable protections, such as
helmet and ear plugs, and be informed by sui-
table signaling.

FIRST AID

Each country specifies the minimum personal
protection equipment that employers must pro-
vide their first aid team with, for immediate help
in the event of electric shock, suffocation, burns
of different types, eye burns etc.
Beware of electric shock and electric
burns: the workplace may be dange-
rous; do not attempt to help the pa-
tient if the power source is still active.
Cut off the appliance from the power
source and remove all power cables from the
victim using a piece of dry wood or any other
insulating material.
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