For non-contact sensor models air gap and alignment of sensor and position magnet has to be observed. The
linearity will degrade in case of misalignment.
Adjacent magnetic fields or ferromagnetic materials can influence the measurement results of the PRAS and
PRDS sensors of the posirot®product family. Therefore, the angle sensors and position magnets should be
mounted solely with non-magnetic screws and washers.
The angle sensors PRAS2/PRDS2, PRAS3/PRDS3, PRAS4, PRAS5/PRDS5,PRAS6/PRDS6 and
PRAS7/PRDS7 are equipped with an integrated magnetic shield which minimizes the sensitivity against
external magnetic fields.
Optional shield plates are available for the angle sensors PRAS20, PRAS21, PRAS26, PRAS27/PRDS27 and
PRAS29/PRDS29. They can reduce the effect of residual magnetizing in case the sensor has to be mounted
on a ferromagnetic material.
It is however not possible to exclude the effect of lateral external magnetic fields.
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Reference position incremental output
For ease of mounting there are reference markings at housing, position magnet or shaft. If both markings
match, the reference output Z/ Z will be activated.
Reference position SSI output
The zero point of the characteristic is given when markings on magnet and housing match.
Reference position CAN output (CANopen, J1939)
The average value of the characteristic is given when markings on magnet and housing match. The
characteristic can be defined by configuration via CAN bus.
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