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•  The cable must not be bent or folded at the outlet of the metal sensor housing.
•  Earthing of the metal sensing head is made via the metal machine chassis which is con-

nected to the sensor.

•  The sensor must be installed so that no twisting forces can act on the cable or sensor.
•  The connection cable of the sensor must only be connected to power supplies for passive 

resistance sensors, intended and approved for the operation of the installation according 
to DIN EN 60751.

•  The electrical characteristic values of the unit must not be exceeded.

Max. operating voltage: 6 V
Max. operating current: 10 mA
Max. Power: 20 mW.

•  Wiring: 

RD

RD

WH

WH

Core colours:
WH = white
RD = red

•  Avoid electrostatic charging on units and cables.
•  To avoid electrostatic charging clean the sensor with a damp cloth only.
•  Do not mount the sensor in the dust flow.
•  Avoid dust deposits on the sensors.
•  In any case the user must check whether the supplied fixing accessories are appropriate 

for the corresponding application with respect to the ATEX requirements. The supplied 
fixing accessories are not to be considered as a recommendation by the manufacturer for 
ATEX-conform installation.

•  Steps must be taken to ensure the equalisation of potential of metal parts (housing and 

fixing accessories).

•  Note on the installation in dust atmosphere according to classification II 3D:

The end of the cable must be protected against the ingress of dust or be outside the 
hazardous area.

Special conditions for safe operation

•  The cable must not be subject to tensile strain of more than 50 newton.
•  Between the cable and the metal housing of the sensor no tensile strain of more than 50 

newton must be applied.

•  Units or sensors without direct earthing must be installed in an earthed metallic system 

ensuring a permanent electrical connection, and so indirectly earthed.

UK

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