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•A movement detector switches the light on dependent on brightness and off
independent of brightness when no movements are detected anymore.
•An alarm detector reports movements to the central alarm unit independent of
brightness.
•A presence detector serves the purpose of switching on the light in rooms on
detection of movements and dependent on brightness and to switch it off again
when it is no longer needed, i.e.when it is bright enough without artificial lighting
or when nobody is present anymore.The device therefore senses the „presence“
of a person dependent on a preset brightness level. A presence detector is
moreover capable of sensing also small movements (fine motoricity) which are
typical of work in offices.
3. Presence detector function
The presence detector for surface-mounting applications responds to thermal
movements triggered by persons, animals or objects.
On detection of a movement below an adjustable brightness threshold, the load is
switched on.
The device remains on as long as further movements are being detected and
lighting is needed.
The lighting is switched off if one of the following conditions is fulfilled.
•No movement is being detected anymore. The lighting is switched off after the
preset turn-off delay has elapsed.
•The brightness on the monitored surface exceeds durably at least twice the
preset value (e.g.due to more daylight), the presence detector switches off after
ca.10 minutes even if movements continue.Exceeding of the preset brightness is
signalled by flashing of the LED.
To enlarge the field of detection, several presence detector ‘Kompakt’ can be
connected in parallel.
The presence detector for surface-mounting applications is not suited for use in
alarm systems.
1. Safety Instructions
Attention:
Electrical equipment must be installed
and fitted by qualified electricians
only.
Not suitable for safe disconnection
of the mains.
The load is not electrically isolated
from the mains when the device is
off.
To prevent electric shocks,disconnect
the mains supply (by cutting out the
circuit breaker) before working on the
presence detector for surface
mounting applications or before
replacing the lamp.
Failure to observe any of the
installation instructions may result in
fire and in other hazards.
2. Different types of detectors
Like a movement detector or a detector for alarm systems, this presence detector,
too, belongs to the group of PIR detectors (Passive Infrared Sensor).
Depending on their internal design and on signal detection and evaluation, these
devices have different applications: