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through them, e.g. by using
suitable paint.
z EMC Device Classification
According to the standard
IEC 60974-10 this is a welder
in electromagnetic compatibility
Class A. Class A devices are
devices that are suitable for use
in all other areas except resi-
dential areas and areas that are
directly connected to a low-volt-
age supply system that (also)
supplies residential buildings.
Class A devices must adhere to
the Class A limit values.
WARNING NOTICE: Class A
devices are intended for use in
an industrial environment. Due to
the power-related as well as the
radiated interference variables,
difficulties might arise in ensuring
electromagnetic compatibility in
other environments.
Even if the device complies
with the emission limit values in
accordance with the standard,
such devices can still cause
electromagnetic interference in
sensitive systems and devices.
The user is responsible for faults
caused by the arc while working,
and the user must take suitable
protective measures. In doing
82
GB/MT
so, the user must consider the
following:
– network, control, signal and
telecommunication lines
– computers and other micropro-
cessor-controlled devices
– TVs, radios and other playback
devices
– electronic and electrical safety
equipment
– people with cardiac pacemak-
ers or hearing aids
– measurement and calibration
devices
– interference immunity of other
equipment nearby
– the time of day at which the
work is being done.
The following is recommended
to reduce possible interference
radiation:
– equip the mains connection
with a mains filter
– service the device regularly and
keep it in good condition
– welding cables should be
completely uncoiled and run as
close to parallel with the floor
as possible
– if possible, devices and systems
at risk from interference radi-
ation should be removed from
the work area or shielded.
Note!
This device complies with
IEC 61000-3-12, provided that
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