Telwin TIG 222, Instruction Manual

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INVERTER WELDING MACHINES FOR TIG AND MMA WELDING DESIGNED FOR in an industrial environment for professional purposes. It does not assure
INDUSTRIAL AND PROFESSIONAL USE. compliance with the basic limits relative to human exposure to electromagnetic
fields in the domestic environment.
Note: In the following text the term “welding machine" will be used.
The operator must adopt the following procedures in order to reduce exposure to
1. GENERAL SAFETY CONSIDERATIONS FOR ARC
electromagnetic fields:
- Fasten the two welding cables as close together as possible.
WELDING
- Keep head and trunk as far away as possible from the welding circuit.
The operator should be properly trained to use the welding machine safely and
- Never wind welding cables around the body.
should be informed about the risks related to arc welding procedures, the
- Avoid welding with the body within the welding circuit. Keep both cables on the
associated protection measures and emergency procedures.
same side of the body.
(Refer also to the “IEC TECHNICAL SPECIFICATION or CLC/TS 62081”:
- Connect the welding current return cable to the piece being welded, as close
INSTALLATION AND USE OF EQUIPMENT FOR ARC WELDING).
as possible to the welding joint.
- Do not weld while close to, sitting on or leaning against the welding machine
(keep at least 50 cm away from it).
- Do not leave objects in ferromagnetic material in proximity of the welding
circuit.
- Avoid direct contact with the welding circuit: the no-load voltage supplied by
- Minimum distance d= 20 cm (Fig. O).
the welding machine can be dangerous under certain circumstances.
- When the welding cables are being connected or checks and repairs are
carried out the welding machine should be switched off and disconnected
from the power supply outlet.
- Class A equipment: - Switch off the welding machine and disconnect it from the power supply outlet
This welding machine conforms to technical product standards for exclusive use
before replacing consumable torch parts.
in an industrial environment and for professional purposes. It does not assure
- Make the electrical connections and installation according to the safety rules
compliance with electromagnetic compatibility in domestic dwellings and in
and legislation in force.
premises directly connected to a low-voltage power supply system feeding
- The welding machine should be connected only and exclusively to a power
buildings for domestic use.
source with the neutral lead 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 EXTRA PRECAUTIONS
rain.
WELDING OPERATIONS:
- Do not use cables with worn insulation or loose connections.
- 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
- Do not weld on containers or piping that contains or has contained flammable
emergencies.
liquid or gaseous products.
Technical protection measures MUST BE taken as described in 5.10; A.7; A.9.
- Do not operate on materials cleaned with chlorinated solvents or near such
of the “IEC TECHNICAL SPECIFICATION or CLC/TS 62081”.
substances.
- The operator MUST NOT BE ALLOWED to weld in raised positions unless
- Do not weld on containers under pressure.
safety platforms are used.
- Remove all flammable materials (e.g. wood, paper, rags etc.) from the working
- VOLTAGE BETWEEN ELECTRODE HOLDERS OR TORCHES: working with
area.
more than one welding machine on a single piece or on pieces that are
- Provide adequate ventilation or facilities for the removal of welding fumes
connected electrically may generate a dangerous accumulation of no-load
near the arc; a systematic approach is needed in evaluating the exposure
voltage between two different electrode holders or torches, the value of which
limits for the welding fumes, which will depend on their composition,
may reach double the allowed limit.
concentration and the length of exposure itself.
An expert coordinator must use measuring instruments to determine the
- Keep the gas bottle (if used) away from heat sources, including direct
existence of a risk and should take suitable protection measures as detailed in
sunlight.
5.9 of the “IEC TECHNICAL SPECIFICATION or CLC/TS 62081”.
RESIDUAL RISKS
- Use adequate electrical insulation with regard to the electrode, the work piece
- IMPROPER USE: it is hazardous to use the welding machine for any work other
and any (accessible) earthed metal parts in the vicinity.
than that for which it was designed (e.g. de-icing mains water pipes).
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.
2. INTRODUCTION AND GENERAL DESCRIPTION
Use special fire-resistant protective clothing and do not allow the skin to be
2.1 INTRODUCTION
exposed to the ultraviolet and infrared rays produced by the arc; other people
This welding machine is a power source for arc welding, made specifically for TIG (DC)
in the vicinity of the arc should be protected by shields of non-reflecting
(AC/DC) welding with HF or LIFT strike and MMA welding with coated electrodes (rutile,
curtains.
acid, basic).
The particular features of this welding machine (INVERTER), such as high-speed and
precise adjustment, result in excellent quality welds.
The inverter system of regulation at the power supply input (primary) also leads to a
drastic decrease in the volume of both the transformer and the levelling reactance so
that it is possible to build a considerably smaller, lighter welding machine, highlighting its
advantages of easy handling and transport.
- The flow of the welding current generates electromagnetic fields (EMF) around
the welding circuit.
2.2 OPTIONAL ACCESSORIES
Electromagnetic fields can interfere with certain medical equipment (e.g. Pace-
- Argon bottle adapter.
makers, respiratory equipment, metallic prostheses etc.).
- Welding current return cable complete with earth clamp.
Adequate protective measures must be adopted for persons with these types of
- Manual remote control with 1 potentiometer.
medical apparatus. For example, they must be forbidden access to the area in
- Manual remote control with 2 potentiometers.
which welding machines are in operation.
- Pedal remote control.
This welding machine conforms to technical product standards for exclusive use
1. GENERAL SAFETY CONSIDERATIONS FOR ARC WELDING ...................... 5 5.3CONNECTION TO THE MAIN POWER SUPPLY ....................................... 7
5.3.1 Plug and outlet ................................................................................... 7
2. INTRODUCTION AND GENERAL DESCRIPTION......................................... 5
5.4CONNECTION OF THE WELDING CABLES ............................................. 7 2.1INTRODUCTION ........................................................................................ 5
5.4.1 TIG welding ........................................................................................ 7
2.2OPTIONAL ACCESSORIES ....................................................................... 5
5.4.2 MMA WELDING ................................................................................. 7
3. TECHNICAL DATA .......................................................................................... 6
6. WELDING: DESCRIPTION OF THE PROCEDURE........................................ 7 3.1DATA PLATE ............................................................................................... 6
6.1TIG WELDING ............................................................................................ 7
3.2OTHER TECHNICAL DATA......................................................................... 6
6.1.1 HF and LIFT strike ............................................................................. 7
4. DESCRIPTION OF THE WELDING MACHINE ............................................... 6
6.1.2 TIG DC welding.................................................................................. 8
4.1BLOCK DIAGRAM ...................................................................................... 6
6.1.3 TIG AC welding ................................................................................. 8
4.2 CONTROL, ADJUSTMENT AND CONNECTION DEVICES..................... 6
6.1.4 Procedure .......................................................................................... 8
4.2.1 BACK PANEL ..................................................................................... 6
6.2MMA WELDING .......................................................................................... 8
4.2.2 FRONT PANEL .................................................................................. 6
6.2.1 Procedure .......................................................................................... 8
5. INSTALLATION ............................................................................................... 7
7. MAINTENANCE .............................................................................................. 8
5.1PREPARATION ........................................................................................... 7
7.1ROUTINE MAINTENANCE......................................................................... 8
5.1.1 Assembling the return cable-clamp.................................................... 7
7.1.1 Torch .................................................................................................. 8
5.1.2 Assembling the welding cable-electrode holder clamp (MMA) .......... 7
7.2EXTRAORDINARY MAINTENANCE .......................................................... 8
5.1.3 How to lift the welding machine ......................................................... 7
8. TROUBLESHOOTING..................................................................................... 8
5.2POSITION OF THE WELDING MACHINE.................................................. 7
INDEX
ENGLISH
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