KLQ-W 0-10V / 4...20mA and Changeover contact, Channel Air Quality Sensor (VOC), Pleuroform, TYR I

The self-calibrating microprocessor-controlled duct air quality sensor AERASGARD~ KLQ serves to determine air quality based on a mixed gas sensor / VOC sensor (volatile organic compounds = volatile organic substances). It is applied: - for measuring air quality in offices, hotels, meeting and conference rooms, homes, business premises, restaurants and the like. - for quantitative assessment of the room air pollution load by contaminated gases (cigarette smoke, body odors, respiratory air, solvent vapors, emissions from building materials and cleaning agents) - for adjustable sensitivity regarding the maximum air pollution expected - for usage-dependent room air exchange, as only contaminated air is exchanged, thus saving energy. The air quality sensor does not measure the concentration of a single gas, but measures the gas mixture, this means: the measurement of the gas concentration is not done selectively. Therefore, a result of the gas concentration in the unit ppm is also not possible. Detectable gases: mixed gases, vapors of alkanols, cigarette smoke, car gases, exhaled air, combustion smoke (from wood, paper, plastics). The group that can be measured via VOC detection includes alkenes, alkanes, aromatics, terpenes, halogenated hydrocarbons, esters, aldehydes and ketones. In addition, substances that occur freely, such as terpenes and isoprene. Also VOC gases from building chemicals such as paints, adhesives or insulating materials, cleaning and polishing agents, chemicals for cleaning carpets and desks. The lifetime of the sensor depends on the load and gas concentration and is > 60 months under normal load. The new design offers the possibility to choose between three sensitivities, similar to three measuring ranges, by means of dip switches. Selectable is LOW for low, MEDIUM (default, corresponds to the version of this sensor delivered so far) for medium and HIGH for high VOC sensitivity.