Bio200 BioAlarm System

The Bio200 BAS is a "Detect-To-Warn System". It is based on detecting the UV-fluorescence properties of organic particles. The system has been designed to minimize the false positive alarm rate caused by non-toxic fluorescent particles such as pollen and diesel exhaust.

The low false positive alarm rate is achieved by removing large particles such as pollen from the sample flow, and then dividing the sample into two size fractions for detection; coarse particles larger than 2 μm and fi ne particles smaller than 2 μm.

The detection is based on measuring the biological origin of the particles with a fluorescence method. In addition to this, certain relevant parameters from background particles smaller than 2 μm are measured. The alarm from the system is generated by an algorithm that collects and combines all the information.