Scattered Light Aerosol Spectrometer System with Fiber-Optic Technology

The Promo® Single operates on the principle of 90° scattered light detection: Particles are guided individually through a defined measurement volume and illuminated by a high-luminance white-light LED. The scattered light is detected at a right angle by a photomultiplier and converted into an electrical signal. The intensity of this signal is a direct measure of particle size. The patented T-aperture eliminates edge-zone errors, and coincidences—the simultaneous presence of multiple particles in the measurement volume—are detected and corrected in the individual signal. The unique calibration curve of the white light source enables precise size assignment across the entire measurement range.

Extensions

Promo^® Aerosol Sensor 2070: dp ≈ 0.2–40 µm | C_{N max} ≈ 10⁶ particles/cm³

Promo^® Aerosol Sensor 2100: dp ≈ 0.2–40 µm |C_{N max} ≈ 5 * 10⁵ particles/cm³

Promo^® Aerosol Sensor 2300: dp ≈ 0.2–105 µm |C_{N max} ≈ 4 * 10⁴ particles/cm³

Promo^® Aerosol Sensor 2500: dp ≈ 0.3–105 µm | C_{N max} ≈ 4 * 10³ particles/cm³

Promo^® Aerosol Sensor 2xx0 P: pressure resistant < 14 bar overpressure | process temperature -20 °C–+150 °C

Promo^® Aerosol Sensor 2xx0 HP: pressure resistant < 14 bar overpressure | T ≤ +250 °C | process temperature -20 °C–+250 °C