English
The C-AQ-0002R module is a spatial sensor of gaseous air pollutants. The sensor exhibits a high sensitivity to low concentrations of air pollutants, such as e.g. ammonia, hydrogen sulphide, which are by-products of decomposition of organic waste material, or which are released from the materials used for the interiors of buildings. Therefore it is suitable for the ventilation of spaces polluted by gaseous substances of organic origin, cooking fumes, cigarette smoke, and such like. The sensor is also suitable for preliminary detection of alcohol vapours, leak detection of gases such as methane, propane-butane, natural gas, etc. Measuring the air pollution works on the semiconductor basis. The sensitive element changes its conductivity in relation to the air pollution. The sensor is not sensitive only to the above-mentioned compound, but it exhibits certain sensitivity to other organic vapours, including various deodorants, fragrances, perfumes, odours, and such like. Furthermore, the sensor demonstrates certain sensitivity to relative humidity of air, and good long-term stability.
The sensor is not designed for safety indication, such as gas leakage or smoke detection.
Some examples of detected sources of pollution: Cooking fumes and rotting materials of organic origin. Substances released from furniture, carpets and other materials in buildings.
Applications:Ventilation control in restaurants, bistros, hotels, offices, kitchens, dressing rooms, households, etc.
The sensor is stabilized only after prolonged operation, when it has been continuously supplied voltage for at least 2 days; this is true for most electrochemical sensors. Electrochemical sensors are susceptible to moisture at low temperatures during transportation; they are distributed from the factory with a moisture absorber (silica gel).
Orientation dependence of output voltage on the concentration (the range 0 - 5 ppm for ethanol).
Connecting the sensor to the CIB bus, mechanical dimensions and mounting data are identical with the C-AQ-0001R module.