Humans respirate Volatile Organic Compounds (VOCs) as well as CO2. The BAPI sensor measures these VOCs and indicates when a space is occupied just as well as a CO2 sensor. The advantage of the VOC sensor is that it measures air contaminants from other sources besides respiration, such as building materials, cleaners, perfume and furniture and carpet off-gassing.
The sensor features 0 to 5 VDC or 0 to 10 VDC output. The VOC level is indicated as “Good, Fair or Poor” by three discrete green, yellow and red LED’s on the front of the unit. If the output reaches 2,000 PPM, the red LED will begin to flash because it has it it’s maximum output.
- Corresponds to ASHRAE’s CO2-based DVC algorithm
- Duct aspiration tube or rough service ventilated BAPI-Box
- 0 to 5 VDC or 0 to 10 VDC output