MDT SCN-CO2MGS.02 handleiding

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Technical Manual
CO2 / VOC Combi Sensor 55 [SCN-CO2MGS.02]
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Germany
Phone: +49-2263-880 • knx@mdt.de • www.mdt.de
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2.2 Special functions
Environment measuring channels
In addition to the measuring channels for CO2 and VOC, the combi-sensor also records the room
temperature and relative humidity. With these measured values, it can control temperature and air
quality. The air quality traffic light alerts you to excessive CO2 or VOC concentrations in the room.
VOC is the abbreviation for volatile organic compounds, which can be produced during evaporation
at room temperature and impair the quality of the room air.
Air quality traffic light
The output of the air quality traffic light can be set as [1 bit] step-, scene-, RGB- or HSV-objects. For
example, the lighting colour can change automatically and remind you to ventilate the room. The
CO2 or VOC value can be used as input variable. The threshold values of the air quality traffic light
are freely adjustable in [ppm] "parts per million" or in the case of VOC, alternatively as [IAQ]
"Indoor Air Quality" Index. The hysteresis between the traffic light levels can be applied in
[percent], [ppm] or [IAQ]. The IAQ index from 0 to 500 provides general information about the
quality of indoor air, which has an impact on people's well-being.
Air quality controller
The air quality control can be activated as a step switch (bit-, binary-, byte-coded) or as PI control.
The measured value for the control can be both the CO2 and the VOC value - in each case in
combination with the relative humidity. Used as central ventilation control, up to 10 external
sensors can be integrated into the regulation via communication objects. A wide range of
adjustment options allows you to adapt the air quality control to your own needs. For example, the
hysteresis of the step controller, or the reset time and proportional coefficient of the PI control
can be adjusted. The setpoints or ventilation levels can be different for day and night. The air
quality control can be overridden at any time via the adjustable lock object.
Room temperature controller
The actual temperature of the internal or an external temperature sensor is sufficient for the PI
controller to start the regulation. The setpoints for "Comfort", "Standby" and "Night" can be
individually configured independently of the "Basic Comfort" setpoint. This ensures a high level of
compatibility with many visualisations. The setpoint shift can be done classically via 1 bit (step), 1
byte (counting pulses) and via
2 bytes (temperature difference and absolute values). This also provides a high degree of
compatibility with a wide variety of visualisations. Set values and the operating mode can be saved
and restored in the event of a bus voltage failure.
To shorten the heating phases, the temperature controller has an additional heating level-
optionally as a 2-point control or as PWM (switching PI control).
The CO2 / VOC Combi Sensor has a plain text diagnosis and outputs the status of the temperature
controller via a 14-byte object. This allows errors to be localised in a short time and makes
commissioning much easier for the system integrator.
Long Frame Support
Support of sending longer telegrams and thus the integration of more user data per telegram. This
significantly shortens the programming time.
Updateable via DCA
With the help of the MDT Update Tool, the devices can be updated if necessary. The download is
available free of charge at www.mdt.de and www.knx.org.

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Productinformatie

MerkMDT
ModelSCN-CO2MGS.02
CategorieNiet gecategoriseerd
TaalNederlands
Grootte0 MB