Bedienungsanleitung Telwin EURARC 422 (Seite 4 von 72) (Alle Sprachen)

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The operator must adopt the following procedures in order to

reduce exposure to electromagnetic fields:

- Fasten the two welding cables as close together as possible.

INSTRUCTION MANUAL

- Keep head and trunk as far away as possible from the welding

circuit.

- Never wind welding cables around the body.

- Avoid welding with the body within the welding circuit. Keep

both cables on the same side of the body.

WARNING! BEFORE USING THE WELDING MACHINE READ THE

- Connect the welding current return cable to the piece being

INSTRUCTION MANUAL CAREFULLY.

welded, as close as possible to the welding joint.

- Do not weld while close to, sitting on or leaning against the

ARC WELDING MACHINES FOR COATED ELECTRODES (MMA)

welding machine (keep at least 50 cm away from it).

FOR INDUSTRIAL AND PROFESSIONAL USE.

- Do not leave objects in ferromagnetic material in proximity of

Note: In the following text the term “welding machine" will be used.

the welding circuit.

- Minimum distance d= 20 cm (Fig. L).

1. GENERAL SAFETY CONSIDERATIONS FOR ARC WELDING

The operator should be properly trained to use the welding

machine safely and should be informed about the risks related to

arc welding procedures, the associated protection measures and

- Class A equipment:

emergency procedures.

This welding machine conforms to technical product standards

(Refer also to the “IEC TECHNICAL SPECIFICATION or CLC/TS

for exclusive use in an industrial environment and for professional

62081”: INSTALLATION AND USE OF EQUIPMENT FOR ARC

purposes. It does not assure compliance with electromagnetic

WELDING).

compatibility in domestic dwellings and in premises directly

connected to a low-voltage power supply system feeding

buildings for domestic use.

- Avoid direct contact with the welding circuit: the no-load

EXTRA PRECAUTIONS

voltage supplied by the welding machine can be dangerous

under certain circumstances.

WELDING OPERATIONS:

- When the welding cables are being connected or checks and

- In environments with increased risk of electric shock.

repairs are carried out the welding machine should be

- In confined spaces.

switched off and disconnected from the power supply outlet.

- In the presence of flammable or explosive materials.

- Make the electrical connections and installation according to

MUST BE evaluated in advance by an “Expert supervisor” and

the safety rules and legislation in force.

must always be carried out in the presence of other people

- The welding machine should be connected only and

trained to intervene in emergencies.

exclusively to a power source with the neutral lead connected

Technical protection measures MUST BE taken as described in

to earth.

5.10; A.7; A.9. of the “IEC TECHNICAL SPECIFICATION or

- Make sure that the power supply plug is correctly connected to

CLC/TS 62081”.

the earth protection outlet.

- Welding MUST NOT be allowed if the welding machine or wire

- Do not use the welding machine in damp or wet places and do

feeder is supported by the operator (e.g. using belts).

not weld in the rain.

- The operator MUST NOT BE ALLOWED to weld in raised

- Do not use cables with worn insulation or loose connections.

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

- Do not weld on containers or piping that contains or has

dangerous accumulation of no-load voltage between two

contained flammable liquid or gaseous products.

different electrode holders or torches, the value of which may

- Do not operate on materials cleaned with chlorinated solvents

reach double the allowed limit.

or near such substances.

An expert coordinator must use measuring instruments to

- Do not weld on containers under pressure.

determine the existence of a risk and should take suitable

- Remove all flammable materials (e.g. wood, paper, rags etc.)

protection measures as detailed in 5.9 of the “IEC TECHNICAL

from the working area.

SPECIFICATION or CLC/TS 62081”.

- Provide adequate ventilation or facilities for the removal of

welding fumes near the arc; a systematic approach is needed

RESIDUAL RISKS

in evaluating the exposure limits for the welding fumes, which

will depend on their composition, concentration and the length

- OVERTURNING: position the welding machine on a

of exposure itself.

horizontal surface that is able to support the weight:

otherwise (e.g. inclined or uneven floors etc.) there is danger

of overturning.

- IMPROPER USE: it is hazardous to use the welding machine for

any work other than that for which it was designed (e.g. de-

- Use adequate electrical insulation with regard to the electrode,

icing mains water pipes).

the work piece and any (accessible) earthed metal parts in the

vicinity.

- Do not use the handle to hang up the welding machine.

This is normally achieved by wearing gloves, shoes, head

coverings and clothing designed for this purpose and by using

insulating platforms or mats.

2.INTRODUCTION AND GENERAL DESCRIPTION

This welding machine is a power source for arc welding, made

- Always protect your eyes using masks or helmets fitted with

specifically for MMA welding in alternating current (AC) and (for the

apprpriate lenses.

AC/DC models) in direct current (DC) with coated electrodes (rutile,

Use special fire-resistant protective clothing and do not allow

acid, basic).

the skin to be exposed to the ultraviolet and infrared rays

produced by the arc; other people in the vicinity of the arc

STANDARD ACCESSORIES:

should be protected by shields of non-reflecting curtains.

- Wheels kit.

OPTIONAL ACCESSORIES:

- MMA welding Kit.

3. TECHNICAL DATA

- The flow of the welding current generates electromagnetic

DATA PLATE

fields (EMF) around the welding circuit.

The most important data regarding use and performance of the welding

machine are summarised on the rating plate and have the following

Electromagnetic fields can interfere with certain medical

equipment (e.g. Pace-makers, respiratory equipment, metallic

meaning:

prostheses etc.).

Fig. A

Adequate protective measures must be adopted for persons with

1- Protection rating of the covering.

these types of medical apparatus. For example, they must be

2- Symbol for power supply line:

forbidden access to the area in which welding machines are in

1~: single phase alternating voltage;

3~: three phase alternating voltage.

operation.

3- Symbol for welding procedure provided.

This welding machine conforms to technical product standards

4- Symbol for internal structure of the welding machine.

for exclusive use in an industrial environment for professional

5- EUROPEAN standard of reference, for safety and construction of

purposes. It does not assure compliance with the basic limits

arc welding machines.

relative to human exposure to electromagnetic fields in the

6- Manufacturer's serial number for welding machine identification

domestic environment.

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Telwin EURARC 422 Seite 4

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