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F20034 REV 0.0
INSTALLATION AND USER MANUAL MDO-O
The MDO-O is an intelligent presence detector switch,
intended to switch lighting on/off.
To detect presence, the MDO uses a pyro-electric
infrared (PIR) sensor and microphone.
When the MDO-O is switched off, it will switch on the
lighting as soon as any motion is detected. Subsequent-
ly, sound detection will also become active. Together they
determine whether there is still a presence in the room.
As the MDO-O is not intended to switch off the moment
presence is no longer detected, it uses a so-called turn-
off delay. The motion sensor as well as the sound sensor
has its own timer, which is always reset with a matching
detection.
If the time for one of these timers expires, the lighting is
switched off.
The MDO-O features a twilight sensor with which it is
possible to stop the light from being switched on if the
amount of daylight exceeds a certain value.
Motion detection
Sound
detection
The MD-O can be installed on a ceiling and is available
in a build-in [MDO-I ] and a surface mount [MDO-O]
version. For both versions, the detection angle of the
motion sensor is approximately 130°-140°. This means a
diameter of 6 - 7 metres at a ceiling height of 2.5 metres.
The optimal installation height is 2.5 - 3 metres. A higher
installation position leads to reduced sensitivity of the
motion sensor.
Note: At the limits of the detection range,
the sensitivity of the motion sensor is always
impaired. To get the best performance, the
MDO-O should be placed in the middle of
the room
. The following factors have an adverse effect:
- The direct air flow of, for example,
warm air heating or air conditioning.
- Direct radiation [lamps, reflected sunlight
[for example by water].
For the horizontal distance from MDO-O to access to the
room, allow at least 2.5m.
Rotate the sensor unit and remove it from its holder.
Screw the holder to the ceiling. Check whether the con-
nector has been installed correctly [it ‘clicks’ into place
when pushed] and place the sensor in the holder. Rotate
it clockwise until the bayonet fitting is seated correctly.
Install the lid on the holder. Rotate it clockwise until the
bayonet fitting is seated correctly.
Activation method
As a standard, the MDO-O is switched
on when motion is detected. Subse-
quently, motion and sound detection are
used to determine the moment it should
be switched off again.
INTRODUCTION
CHOOSING THE LOCATION
INSTALLATION ON CEILING
SETTINGS
