Deca DECATIG 200E AC/DC [7/40] Instruction manual
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Deca DECATIG 200E AC/DC [7/40] Instruction manual

Deca DECATIG 200E AC/DC [7/40] Instruction manual
6
950277-04 10/09/14
Connect the earth cable to the workpiece as close as possible to the area to be
welded.
Keep your head and trunk as far as possible from the welding circuit. Do not work
close to the welder, or seated or leaning on it. Minimum distance: Fig. 7 Da = cm 50;
Db = cm.20
Class A equipment
This equipment has been designed to be used in professional and industrial
environments.
If this equipment is used in domestic environments and those directly connected to a
low voltage power supply network which supplies buildings used for domestic purposes,
it may be difcult to ensure compliance to electromagnetic compatibility as the result of
conducted or radiated disturbances.
Welding in conditions of risk
If welding needs to be done in conditions of risk (electric discharges, suffocation, the
presence ofinammableorexplosivematerials), make sure that an authorised expert
evaluates the conditions beforehand. Make sure that trained people are present who can
intervene in the event of an emergency. Use the protective equipment described in 5.10; A.7;
A.9 of the IEC or CLC/TS 62081 technical specication.
If you are required to work in a position raised above ground level, always use a safety
platform.
If more than one welding machine has to be used on the same piece, or in any case on
pieces connected electrically, the sum of the no-load voltages on the electrode holders
or on the torches may exceed the safety levels. Make sure that an authorised expert
evaluates the conditions beforehand to see if such risk exists and adopt the protective
measures described in 5.9 of the IEC or CLC/TS 62081 technical specication if
required.
Additional warnings
Do not use the welding machine for purposes other than those described, for example
to thaw frozen water pipes.
Place the welding machine on a at stable surface, and make sure that it cannot move.
It must be positioned in such a way as to allow it to be controlled during use but without
the risk of being covered with welding sparks.
Do not lift the welding machine. No lifting devices are tted on the machine.
Do not use cables with damaged insulation or loose connections.
Description of the welding machine
The welding machine is a current transformer for manual arc welding using MMA coated
electrodes and TIG HF.
The delivered current is direct or alternate.
The static output of the current generator is of a drooping type.
Main parts Fig. 1
A) MMA / TIG AC / TIG DC selector
B) AC / DC selector
C) TIG 2T / TIG 4T / MMA selector
D) ON / OFF switch
E) Post-gas (TIG)
F) Welding machine power on warning
G) Thermal cutout signal
H) TIG torch 3-pin socket
I) Couplings for welding cables / torch coupling
L) Torch welding gas tting
M) Current adjustment indicator
N) Welding current adjustment
Technical data
A data plate is afxed to the welding machine. Fig. 2 shows an example of this plate.
A) Constructor name and address
B) European reference standard for the construction and safety of welding
equipment
C) Symbol of the welding machine internal structure
D) Symbol of the foreseen welding process: D2: MMA welding; D1: TIG welding
E) Symbol of the current delivered: continous: E2; E1: alternate
F) Input power required: 1˜ alternate single phase voltage, frequency
G) Level of protection from solids and liquids
I) Welding circuit performance
U0V Minimum and maximum open circuit voltage (open welding circuit).
I2, U2 Current and corresponding normalised voltage delivered by the welding
machine.
X Duty cycle. Indicate how long the welding machine can work for and how
long it must rest for in order to cool down. The time is expressed in % on
the basis of a 10 minute cycle (e.g. 60% means 6 min. work and 4 min.
rest).
A/V Current adjustment eld and corresponding arc voltage.
J) Power supply data
U1 Input voltage (permitted tolerance: +/- 10%)
I1 eff Effective absorbed current
I1 max Maximum absorbed current
K) Serial number
L) Weight
M) Safety symbols: Refer to Safety Warnings
Starting up
Connections to the mains must be made by expert or qualied personnel.
Make sure that the welding machine is switched off and the plug is not in the power
EN
Instruction Manual
Read this instruction manual carefully before using the welding machine.
The MMA and TIG coated electrode arc welding systems referred to herein as “welding
machines” are for industrial and professional use.
Make sure that the welding machine is installed and repaired only by qualied persons or
experts, in compliance with the law and with the accident prevention regulations.
Make sure that the operator is trained in the use and risks connected to the arc-welding
processs and in the necessary measures of protection and emergency procedures.
Detailed information can be found in the “Installation and use of arc-welding equipment”
brochure: IEC or CLC/TS 62081.
Safety warnings
Make sure that the power socket to which the welding machine is connected is protected
by suitable safety devices (fuses or automatic switch) and that it is grounded.
Make sure that the plug and power cable are in good condition.
Before plugging into the power socket, make sure that the welding machine is switched
off.
Switch the welding machine off and pull the plug out of the power socket as soon as
you have nished working.
Switch the welding machine off and pull the plug out of the power socket before connecting
the welding cables, installing the continuous wire, replacing any parts in the torch or
wire feeder, carrying out maintenance operations, or moving it (use the carrying handle
on the welding machine).
Do not touch any electried parts with bare skin or wet clothing. Insulate yourself
from the electrode, the piece to be welded and any grounded accessible metal parts.
Use gloves, footwear and clothing designed for this purpose and dry, non-ammable
insulating mats.
Use the welding machine in a dry, ventilated space. Do not expose the welding machine
to rain or direct sunshine.
Use the welding machine only if all panels and guards are in place and mounted
correctly.
Do not use the welding machine if it has been dropped or struck, as it may not be safe.
Have it checked by a qualied person or an expert.
Eliminate any welding fumes through appropriate natural ventilation or using a smoke
exhauster. A systematic approach must be used to assess the limits of exposure
to welding fumes, depending on their composition, concentration and the length of
exposure.
Do not weld materials that have been cleaned with chloride solvents or that have been
near such substances.
Use a welding mask with adiactinic glass suited for welding. Replace the mask if
damaged; it may let in radiation.
Wear reproof gloves, footwear and clothing to protect the skin from the rays produced
by the welding arc and from sparks. Do not wear greasy garments as a spark could set
re to them. Use protective screens to protect people nearby.
Do not allow bare skin to come into contact with hot metal parts, such as the torch,
electrode holder grippers, electrode stubs, or freshly welded pieces.
Metal-working gives off sparks and splinters. Wear safety goggles with protective side
eye guards.
Welding sparks can trigger res.
Do not weld or cut anywhere near inammable materials, gasses or vapours.
Do not weld or cut containers, cylinders, tanks or piping unless a qualied technician
or expert has checked that it is possible to do so, or has made the appropriate
preparations.
Remove the electrode from the electrode holder gripper when you have completed
the welding operations. Make sure that no part of the electrode holder gripper electric
circuit touches the ground or earth circuits: accidental contact could cause overheating
or trigger a re.
EMF Electromagnetic Fields
Welding current creates electromagnetic elds (EMF) near the welding circuits and
the welder. Electromagnetic elds may interfere with medical prostheses such as
pacemakers.
Suitable and sufcient measures should be implemented to protect those operators
having such aids. For instance, they should not be allowed to enter that area where
welding equipment is used. Any operator having such aids should consult their doctor
before coming close to an area where welding equipment is used.
This device meets the specic requirements of the product technical standard and is
intended for professional use in an industrial environment only. Compliance to expected
limits for human exposure to electromagnetic elds at home is not ensured.
Follow these strategies to minimise exposure to electromagnetic elds (EMF):
Do not place your body between the welding cables. Both welding cables should be on
the same side of your body.
Twist both welding cables together and secure them with tape when possible.
Do not wrap the welding cables around your body.

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