Motion sensor operating principle
Operating principle refers to the sensor-switched type (SC)
or to the manually operated type (C) in combination with a
Bluetooth sensor product.
– The integrated infrared sensor detects the heat radiated
from moving objects (e.g. people, animals). The heat
detected in this way is converted electronically into a
signal that switches the unit ON automatically.
– The most reliable way of detecting motion is to install
the unit with the sensor aimed across the direction in
which a person would walk.
– Motion detection reach is restricted when the unit is
approached head on.
– Obstacles (such as trees, walls or panes of glass) may
restrict or prevent the detection of movement.
– Sudden fluctuations in temperature as a result of
changes in weather are not distinguished from sources
of heat.
– 5 –
Index