How does a Paulmann motion detector work?
The operating principle of a motion detector is that a heat source moves from one sector to another. These sectors are determined by the hemispherical lens of the motion detector. If a person moves straight towards the sensor within a certain sector, the motion detector is switched on delayed. However, if a person crosses several sectors, the motion detector is immediately switched on. In case the motion detector always acts very late, it might be necessary to turn it a little in the ceiling or to look for another mounting position (this might be difficult in many cases).
