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Gys TIG 168 DC HF Manual

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14
TIG 168 / TIG 200 DC
MADE IN FRANCE
EN
EMC CLASSIFICATION
These Class A devices are not intended to be used on a residential site where the electric current is
supplied by the public network, with a low voltage power supply. There may be potential difculties in
ensuring electromagnetic compatibility on these sites, because of the interferences, as well as radio
frequencies.
This equipment does not comply with IEC 61000-3-12 and is intended to be connected to private
low-voltage systems interfacing with the public supply only at the medium- or high-voltage level. On
a public low-voltage power grid, it is the responsibility of the installer or user of the device to ensure,
by checking with the operator of the distribution network, which device can be connected.
ELECTROMAGNETIC INTERFERENCES
The electric currents owing through a conductor cause electrical and magnetic elds (EMF). The
welding current generates an EMF eld around the welding circuit and the welding equipment.
The EMF elds may disrupt some medical implants, such as pacemakers. Protection measures should be taken for
people wearing medical implants. For example, access restrictions for passers-by or an individual risk evaluation for the
welders.
All welders should take the following precautions in order to minimise exposure to the electromagnetic elds (EMF)
generated by the welding circuit::
• position the welding cables together – if possible, attach them;
• keep your head and torso as far as possible from the welding circuit;
• never enroll the cables around your body;
• never position your 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 you’re carrying the welding machine or its wire feeder.
People wearing pacemakers are advised to consult their doctor before using this device.
Exposure to electromagnetic elds while welding may have other health effects which are not yet
known.
RECOMMENDATIONS TO ASSESS THE WELDING AREA AND WELDING INSTALLATION
Overview
The user is responsible for installing and using the arc welding equipment in accordance with the manufacturer’s
instructions. If electromagnetic disturbances are detected, it is the responsibility of the user of the arc welding equipment
to resolve the situation with the manufacturer’s technical assistance. In some cases, this remedial 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 tting input lters. In all cases, electromagnetic interferences
must be reduced until they are no longer bothersome.
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.
. In particular, it should consider the following:
a) the presence of other power cables (power supply cables, telephone cables, command cable, etc...)above, below and
on the sides of the arc welding machine.
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
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