OUSBT66

Absorbance measurement is based on the Lambert-Beer law, which states that absorbance is linearly proportional to the concentration of the absorbing substance. A light source emits light through the process medium, and a detector measures the transmitted light. A beam splitter divides the light into two paths: one for measurement and the other as a reference to compensate for the effects of particles, air bubbles, and light source aging. A filter selects the required wavelength, while a photodiode detects the light intensity and converts it into a photocurrent. The transmitter then converts the photocurrent into absorbance units (AU or OD).

Standard

OUSBT66 is a near-infrared (NIR) absorption sensor for monitoring cell growth, biomass, algae concentration, and crystallization processes. It provides reliable, precise real-time measurements to optimize processes and improve product yields. The hygienic design is suitable for CIP/SIP cleaning and high-temperature sterilization. Easy calibration and verification are enabled by traceable clip-on filters. Suitable for: • Cell density, biomass, and suspended solids measurement in life sciences • Cell growth monitoring in bacterial fermentation • Mammalian cell culture applications • Biomass monitoring during fermentation • Algae concentration monitoring • Crystallization process monitoring • Suspended solids measurement • Laboratory, pilot-scale, fermentation, and bioreactor applications