Introduction And General Description; Technical Data - Telwin TECNICA 114 Manual De Instrucciones

connected to earth.
- Make sure that the power supply plug is correctly
connected to the earth protection outlet.
- Do not use the welding machine in damp or wet
places and do not weld in the rain.
- Do not use cables with worn insulation or loose
connections.
- Do not weld on containers or piping that contains or
has contained flammable liquid or gaseous
products.
- Do not operate on materials cleaned with chlorinated
solvents or near such substances.
- Do not weld on containers under pressure.
- Remove all flammable materials (e.g. wood, paper,
rags etc.) from the working area.
- Provide adequate ventilation or facilities for the
removal of welding fumes near the arc; a systematic
approach is needed in evaluating the exposure limits
for the welding fumes, which will depend on their
composition, concentration and the length of
exposure itself.
- Keep the gas bottle (if used) away from heat sources,
including direct sunlight.
- Use adequate electrical insulation with regard to the
electrode, the work piece and any (accessible)
earthed metal parts in the vicinity.
This is normally achieved by wearing gloves, shoes,
head coverings and clothing designed for this
purpose and by using insulating platforms or mats.
- Always protect your eyes using masks or helmets
with special actinic glass.
Use special fire-resistant protective clothing and do
not allow the skin to be exposed to the ultraviolet and
infrared rays produced by the arc; other people in the
vicinity of the arc should be protected by shields of
non-reflecting curtains.
- The electromagnetic fields generated by the welding
process may interfere with the operation of electrical
and electronic equipment.
Users of vital electrical or electronic devices (e.g.
pace-makers, respirators etc.) should consult a
doctor before stopping in the vicinity of areas where
this welding machine is used.
Users of vital electrical or electronic devices should
not use the welding machine.
- This welding machine complies with the
requirements of the technical standard for the
product for use only and exclusively in industrial
environments and for professional purposes. It is
not guaranteed to meet electromagnetic
compatibility requirements in the home.
EXTRA PRECAUTIONS
- WELDING OPERATIONS:
- In environments with increased risk of electric
shock
- In confined spaces
- In the presence of flammable or explosive
materials
MUST BE evaluated in advance by an "Expert
supervisor" and must always be carried out in the
presence of other people trained to intervene in
emergencies.
Technical protection measures MUST BE taken as
described in 5.10; A.7; A.9. of the "IEC TECHNICAL
SPECIFICATION or CLC/TS 62081".
- The operator MUST NOT BE ALLOWED to weld in
raised positions unless safety platforms are used.
- VOLTAGE BETWEEN ELECTRODE HOLDERS OR
TORCHES: working with more than one welding
machine on a single piece or on pieces that are
connected electrically may generate a dangerous
accumulation of no-load voltage between two
different electrode holders or torches, the value of
which may reach double the allowed limit.
An expert coordinator must use measuring
instruments to determine the existence of a risk and
should take suitable protection measures as detailed
in 5.9 of the "IEC TECHNICAL SPECIFICATION or
CLC/TS 62081".
RESIDUAL RISKS
- IMPROPER USE: it is hazardous to use the welding
machine for any work other than that for which it was
designed (e.g. de-icing mains water pipes).
2. INTRODUCTION AND GENERAL
DESCRIPTION
This welding machine is a power source for arc welding,
made specifically for direct current (DC) .
The specific characteristics of this regulation system
(INVERTER), i.e. high speed and precise regulation, mean
the welding machine gives excellent results when welding
both with coated electrodes (rutile, acid, basic).
Regulation with the "inverter" system at the input of the
power supply line (primary) means there is a drastic
reduction in the volume of both the transformer and the
levelling reactance. This allows the construction of a welding
machine with extremely reduced weight and volume,
enhancing its advantages of easy handling and
transportation.
OPTIONAL ACCESSORIES:
- MMA welding Kit.
- TIG welding Kit.
- Argon gas bottle adapter.
- Pressure reducing valve with gauge.
- TIG welding torch.

3. TECHNICAL DATA

DAT A PLATE
The most important data regarding use and performance of
the welding machine are summarised on the rating plate
and have the following meaning:
1- Protection rating of the covering.
2- Symbol for power supply line:
1~: single phase alternating voltage;
3~: three phase alternating voltage.
3- Symbol S: indicates that welding operations may be
carried out in environments with heightened risk of
electric shock (e.g. very close to large metallic volumes).
4- Symbol for welding procedure provided.
5- Symbol for internal structure of the welding machine.
6- EUROPEAN standard of reference, for safety and
construction of arc welding machines.
7- Manufacturer's serial number for welding machine
identification (indispensable for technical assistance,
requesting spare parts, discovering product origin).
8- Performance of the welding circuit:
- U : maximum no-load voltage.
0
- I /U : current and corresponding normalised voltage
2 2
- 11 -
Fig. A