Technically well-engineered and modularly expandable, the handy spectrometer is a globally popular and top class device. The aerosol spectrometer 11-B detects every single airborne particle (single particle count) from 0.25 to 32 µm in real-time with highest precision, and classifies them in 31 size channels. Every aerosol particle is detected in the optical measuring cell and allocated to a defined particle size, based on the intensity of the scattering light signal. In order to guarantee the precision of the measurement and to protect the measuring cell from impurities, part of the constant 1.2 l/min particle sample volume flow is filtered and brought back into the measuring device as rinsing air. The readiness for use of the model series 11-B is checked per self-test after each start-up.
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