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Translation of the original instructions
Provided that the impedance of the low-voltage public electrical network at the common coupling point
is less than Zmax = x Ohms, this equipment complies with IEC 61000-3-11 and can be connected to
public low-voltage electrical mains.
It is the responsibility of the installer or user of the equipment to ensure, in consultation with the
distribution netwtork operator if necessary, that the network impedance complies with the impedance
restrictions.
This equipment complies with the CEI 61000-3-12 standard.
ELECTROMAGNETIC EMISSIONS
The electric current flowing through any conductor causes electrical and magnetic fields (EMF). The
welding current generates an EMF around the welding circuit and the welding equipment.
The EMF electromagnetic fields can interfere with certain medical implants, such as pacemakers. Protective measures
must be taken for people having medical implants. For example, by restricting access to passers-by or conducting an
individual risk evaluation for the welders.
All welders must use the following procedures to minimize exposure to electromagnetic fields from the welding circuit:
• position the welding cables together - fix them with a clamp, if possible;
• position yourself (torso and head) as far away from the welding circuit as possible;
• never wrap the welding cables around the body;
• do not position the body between the welding cables. Hold both welding cables on the same side of your body;
• connect the earth clamp as close as possible to the area being welded;
• do not work too close to, do not lean and do not sit on the welding machine
• do not weld when transporting the welding machine or its wire feeder.
People wearing pacemakers are advised to consult their doctor before using this device.
Exposure to electromagnetic fields while welding may have other health effects which are not
yet identified.
RECOMMENDATIONS TO ASSESS THE WELDING AREA AND WELDING INSTALLATION
Overview
The user is responsible for the installation and use of the arc welding equipment according to the manufacturer's
instructions. If electromagnetic disturbances are detected, the user is responsible for resolving the situation with the
manufacturer's technical assistance. In some cases, this corrective action may be as simple as earthing the welding
circuit. In other cases, it may be necessary to construct an electromagnetic shield around the welding power source and
around the entire piece by fitting input filters. In all cases, electromagnetic interferences must be reduced until they are
no longer inconvenient.
Welding area assessment
Before installing the machine, the user must evaluate the possible electromagnetic problems that may arise in the area
where the installation is planned. The following elements should be taken into account:
a) the presence (above, below and next to the arc welding machine) of other power cables, remote cables and telephone
cables;
b) television transmitters and receivers;
c) computers and other hardware;
d) critical safety equipment such as industrial machine protections;
e) the health and safety of the people in the area such as people with pacemakers or hearing aids;
f) calibration and measuring equipment;
g) the isolation of other pieces of equipment which are in the same area.
The operator has to ensure that the devices and equipment used in the same area are compatible with each other. This
may require extra precautions;
h) the time of day during the welding or other activities have to be performed.
The dimension of the cutting area that has to be considered depends on the size and shape of the building and the type
of work undertaken. The area taken into consideration might go beyond the limits of the installations.
Welding area assessment
Besides the welding area assessment, the assessment of the arc welding systems installation itself can be used to
identify and resolve cases of disturbances. The assessment of emissions must include in situ measurements as specified
in Article 10 of CISPR 11: 2009. In situ measurements can also be used to confirm the effectiveness of mitigation
measures.
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TIG PRO 201 AC/DC - TIG PRO 201L AC/DC
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