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2 Safety instructions
2.1 General
Adhere to the operating instructions� Non-observance of the instructions, operati-
on which is not in accordance with use as prescribed below, wrong installation or
incorrect handling can affect the safety of operators and machinery�
The installation and connection must comply with the applicable national and inter-
national standards. Responsibility lies with the person installing the device.
The system installer is responsible for the safety of the system into which the
device is integrated�
2.2 Target group
The device must be installed, connected and put into operation by a qualified
electrician�
2.3 Electrical connection
Disconnect the device externally before handling it�
Make sure that the external voltage is generated and supplied according to the
requirements for safety extra-low voltage (SELV) since this voltage is supplied
without further measures to the connected sensors�
The wiring of all signals in connection with the SELV circuit of the device must also
comply with the SELV criteria (safety extra-low voltage, safe electrical isolation
from other electric circuits)�
If the externally supplied or internally generated SELV voltage is externally groun-
ded, the responsibility lies with the user in accordance with the applicable national
installation regulations� All statements in these operating instructions refer to the
unit the SELV voltage of which is not grounded�
The consumption of current which exceeds the value given in the technical data is
not allowed�
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