Noise emission
909.4119.9-02 - 27 -07.19
8 Electromagnetic
compatibility (EMC)
This product is manufactured in conformance
with the current EMC standard. Please note the
following:
Due to their high power consumption, weld-
ing machines can cause problems in the pub-
lic power grid. The mains connection is there-
fore subject to requirements with regard to
the maximum permissible system impedance.
The maximum permissible system imped-
ance (Zmax) of the interface to the power grid
(mains connection) is indicated in the techni-
cal data. If in doubt, please contact your power
grid operator.
The machine is intended for welding in both
commercial and industrial applications (CISPR
11 class A). Use in other surroundings (for ex-
ample in residential areas) may disturb other
electronic devices.
Electromagnetic problems during start-up can
arise in:
– Mains cables, control cables, signal and tel-
ecommunication lines near the welding or
cutting machine
– TV/radio transmitters/receivers
– Computers and other control devices
– Protection equipment such as alarm systems
– Pacemakers and hearing aids
– Measurement and calibration devices
– Equipment with too little protection against
interference
If other equipment is disturbed, it may be neces-
sary to provide additional shielding.
The aected area may go beyond the bounda-
ries of the property concerned. This depends
on the layout of the building and the other ac-
tivities that may be going on there.
Please use the machine in compliance with the
manufacturer's instructions. The operator of the
equipment is responsible for the installation and
use of the machine. The owner is responsible for
eliminating the interference caused by electro-
magnetic elds (possibly with technical assis-
tance by the manufacturer).
9 Mains connection
The machine complies with the requirements of
EN / IEC 61000-3-12 provided that the maximum
network impedance Zmax is smaller or equal to
the impedance Zmax of the machine at the con-
necting point to the public low-voltage network
specied in the technical specications. The tter
or user of the machine is responsible to ensure
that, where applicable by coordination with the
public power supplier, the machine is only con-
nected to a public low-voltage network when the
maximum network impedance Zmax is smaller
or equal to the impedance Zmax of the machine
specied in the technical specications.
WARNING: Permanent use of the machine at
maximum performance with an actual switching
period that is greater than fteen percent leads
to the limit values for Rsce dened according to
IEC 61000-3-12 being exceeded, If the machine is
to be operated with a respectively high loading
on a public low-voltage network, the permission
of the power supplier must be obtained by the
user with regard to the connection of the device.
10 Noise emission
The noise level of the unit is less than 70 dB(A),
measured under standard load in accordance
with EN 60974-1 in the maximum working point.
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General