Introduction
The SCHMIDT+HAENSCH On-Line Purity Analyser is an innovative system designed for the automatic measurement of sugar factory juices. It addresses the limitations of traditional laboratory analysis by providing real-time data, reducing human labor, and minimizing time delays.

System Overview
The analyser operates by taking samples from continuous sugar production lines via pipelines. It measures these samples in a 10-minute cycle using a combination of refractometric concentration measurements (Brix) and NIR polarimetry. The system is housed in an air-conditioned, splash-proof rack that includes a refractometer, an NIR polarimeter, and a control PC. An external process refractometer measures the dry substance content of the original juices.

Sample Processing
The system can handle up to six samples, selected pneumatically, and processes them in a reactor where they are diluted and cooled. The diluted samples are then analyzed for purity, and the data is transmitted to the control room. The system allows for flexible measurement sequences and prioritization of specific samples.

Maintenance and Reliability
The analyser is equipped with automatic rinse cycles and zero checks to ensure reliable operation. Cleaning nozzles prevent contamination build-up, maintaining the accuracy of measurements.

Advantages
The Purity Analyser offers a narrow measuring grid for precise process control. It provides more detailed and stable data compared to manual laboratory methods, as demonstrated by comparative data graphs.

Technical Specifications
Purity is calculated using the ICUMSA methods book Method GS 5/7-1(1994) with density correction. The formula used is: Purity % = (0.2607 - 0.00099 * Brix) * Pol / Brix * 100.

Contact Information
SCHMIDT+HAENSCH GmbH & Co., Waldstraße 80/81, D-13403 Berlin, Germany. Tel.: +49 30 / 41 70 72-0, Fax: +49 30 / 41 70 72-99, Email: [email protected], Website: www.schmidt-haensch.com

Conclusion
The On-Line Purity Analyser by SCHMIDT+HAENSCH represents a significant advancement in sugar production quality control, offering adaptability to specific production needs and enhancing overall process efficiency.