The channel sensor QPM2102D of the STANDARD series is used to measure air quality in pipes and channels . The sensor checks the level of CO2 and VOC in the flowing air in ventilation or air conditioning systems . Sensing is based on the principle of optical measurement of infrared absorption (CO2) and the principle of a heated zinc oxide semiconductor (VOC). Sensors can be used to regulate supply or exhaust air or as elements of the building control system. The sensor is ideally suited for rooms where a large number of people gather and where there may be an increased indication of vapors and an undesirable concentration of various smells. These can be schools, conference halls, halls, cultural social facilities, schools, canteens and restaurants and others.

This model has an integrated display. The display shows the currently measured data. In this case, CO2 and VOC are shown as a bar graph.

This sensor is not intended as a smoke or gas leak warning. At the same time, the sensors are not intended for outdoor use.

Properties

• 24 VAC/VDC power supply
• measuring range 0...2000 ppm
• adjustable VOC sensitivity slow / normal / fast
• 100% VOC measurement
• continuous output 0...10 V or 0...5 V
• display screen
• protection IP65
• no recalibration is required
• max air speed in the system 10 m/s