Carbon dioxide gas (CO2) is a component of the earth‘s atmosphere. Although carbon dioxide is invisible and odorless, an increased CO2 content in the indoor air leads to fatigue and reduced concentration for humans.
In rooms with high occupancy, such as conference rooms and theatres, the negative effects on humans becomes all the more evident.
The SCD-P series duct mount transmitters are designed for the measurement of Carbon Dioxide (CO2) in Heating Ventilating and Air Conditioning applications where Demand Control Ventilation (DCV), fresh air and indoor Air Quality (IAQ), and rooftop air handling economizer control systems are often required.
The SCD-Pxxxx sensors incorporate the a dual wavelength NDIR CO2 sensor, which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability.
The SCD-PxM0 transducer with Modbus interface has 2 additional analogue 0..10 V outputs. Depending on the type, CO2, VOC, temperature and relative humidity are available as measured variables.
SCD-P5M0-00-00
Duct sensor for air quality - MODBUS
Features
- Support demand control ventilation - Offer potential for 10 to 70% energy savings
- Single beam dual wavelength NDIR CO2 sensor - Highly insensitive to pollution and outstanding long term stability
- Easy mounting and service - No expertise required, the hinged lid housing, the removable cable entry and the removable plug-in terminal reduce installation time and costs
- High protection grade - The IP65 enclosure make it suitable for several environments
MeasuringCO2, VOC, Temperature, relative humidity
TypeDuct
Accuracy CO2±50 ppm +3% of measured value (typ. @ 21°C, 50% rH)
Accuracy Temperature±0,5 K (typ. at 21°C)
Accuracy RH±2% between 10..90% rH (typ. at 21°C)
Protection ClassIP65 according to EN 60529
Power supply15..35 V = / 19..29 V ~ SELV
Network technologyRS485 Modbus
SensorNDIR (non-dispersive, infrared) with self-calibration, Dual Channel
VOC SensorVOC sensor (heated metal oxide semiconductor)
