- February 07, 2019
February 7, 2019 - The NIR backscattering sensor EXspect 271 has an optical measurement system and offers turbidity measurement. One feature of the new sensor is in the spherical design of its optical measurement system. This is intended to minimize the attachment of air bubbles and the build-up of deposits. The focusing of the beam due to the sapphire lens allows for a measurement right on the barrier layer of the medium, meaning only the reflection is measured, and not the proportion of the light beam absorbed. Both the attachment of all kinds of things to the measurement system and the measurement of absorbed proportions are drawbacks on the current market. The measurement takes place in the near-infrared region (NIR) at a wavelength of 880 nm, which allows for colour-neutral measurement. The stainless-steel case of the EXspect 271 has a hygienic design and is suitable for CIP/SIP. As another special feature, NIST-traceable reference standards can be obtained for calibrating or checking the sensors in the field. Due to its hygienic design, the EXspect 271 sensor is suitable for applications in the food and drinks industries, but also for diverse applications in the processing industry. This includes, for example, yeast recovery, phase separation, purification processes in dairy plants, and the measurement of cellulose concentrations.