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e-Sense Actilume proximity sensor
e-Sense Actilume has a proximity sensor that responds to
infrared radiation from moving objects, such as people. The
sensor is also called a motion sensor/detector. The receiver
component “sees” positive and negative fields through the lens
faceting. When a heat source moves past the boundary bet-
ween two different fields, the sensor perceives a change, which
is interpreted as proximity detection. If the sensor is placed at a
height of 3.5 metres, it will detect 7.4 ⊗ 6 metres to floor level.
The measurement zone of interest is usually higher than floor
level.
e-Sense Actilume has a sensor that responds to light. The
component is placed right inside a cone so that it can read
from a specific surface. The reflected light from the fixture
and incoming sunlight is added up in the sensor’s measure-
ment. The desired setpoint must be set with no interference
from daylight. Small, sharp reflections from glass objects, for
example, may affect the total value. The sensor should be pla-
ced so that it reads the work surface in a workspace. An ideal
position would be directly above the centre of the desk, but if
the sensor is integrated into the end of a fixture it should be
directed away from the window. The placement of the sensor
and fixture must be evaluated for best results and operation.
e-Sense Actilume daylight sensor
Blue zone The blue circle marks a zone with full detection approx. 0.7 metres above ground
level. For a seated person at a workspace with a sensor in a suspended fixture approx. 2.3
metres above ground level, there is an oval detection of approx. 5⊗4 metres.
Windowsill
Window
Y=radius of reading surface
Y= 0,7xH
Sensor
Y
H
Reading surface of light sensor
H(cm)
Y(cm)
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Y should be less than 1.2 metres to ensure that the sensor does not read light outside the
window.
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