Würth MM 230 Originalbetriebsanleitung Seite 15

Noise emission
The noise emission measured in accordance with
EN 60974-1 at regular load and maximum operating
point is less than 70 dB(A).
Electromagnetic compatibility
This appliance conforms to the current EMC standards.
Please note:
Welding machines consume so much power that
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they may affect public electricity networks. For this
reason the mains supply is subject to requirements
regarding the maximum permissible network
impedance. The maximum permissible mains
impedance (Z ) of the interface to the mains grid
max
(mains power supply) is specified in the technical
data. Contact the electricity network operator if
required.
The appliance is designed for welding both
■
in commercial and industrial environments
(CISPR 11 class A). Using the appliance in an-
other environment (e.g. in a residential area) may
affect electrical equipment in that area.
During start-up, electromagnetic problems may be
■
caused in:
(EMC)
• Power cables, control lines, signal and telecom-
munication lines in the vicinity of the welding /
cutting appliance
• TV and radio stations / sets
• Computers and other control equipment
• Security equipment in commercial buildings
(e.g. alarm systems)
• Cardiac pacemakers and hearing aids
• Calibrating and measuring equipment
• Appliances with an insufficient interference
resistance
If any other facility or equipment in the surrounding
area is affected, additional protective barriers may
become necessary.
The surrounding area to be taken into considera-
■
tion may extend beyond the boundaries of the
premises. This depends both on the type of the
building and on the other activities performed at
the site.
Always observe information and instructions provided
by the manufacturer when operating the appliance.
The company operating the appliance is responsible
for the setup and the operation of the appliance. If
electromagnetic disturbances occur, the operating
company is responsible for the elimination of this
distubances (with technical help from the manufacturer
if necessary).
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