Revolutionary: reliable viscosity determination directly in the production line | 16-July-2010

Anton Paar launches an inline viscometer which monitors the viscosity of process liquids round-the-clock.

L-Vis 510 is an inline viscometer from Anton Paar which can be immersed directly in the production liquid in the pipework or tank. It continuously displays the viscosity at the process temperature and reference temperature, allowing 24-hour monitoring of suspensions, lubricants, starch adhesives and many more process liquids. Data exported to a controller is used to keep the production process in a defined viscosity range, ensuring consistent product quality and reducing reject product.

Anton Paar is the established technological leader in the field of rheometry and viscometry. Using Anton Paar’s know-how, viscosity results from L-Vis 510 can be compared with viscosity results from the laboratory, giving insight into production processes. Additional tests can be carried out, i.e. flow curves and temperature ramps with an MCR rheometer, determination of the Viscosity Index, dynamic viscosity and kinematic viscosity with an SVM 3000 or AMVn viscometer. Results from these tests allow better understanding of material properties and behavior. This knowledge can be applied to the production process. The end result: optimized production supported by inline monitoring by L-Vis 510.

As L-Vis 510 is installed directly in the pipeline or tank, no bypass is required. The measuring principle is new, based on the measurement of dynamic fluid pressure, which is proportional to a fluid’s viscosity. Viscosity is covered in the range from 1 to 50,000 mPa.s. The viscosity value is displayed with the temperature as standard. Drops in pressure or flow rate do not affect L-Vis 510. The new measuring principle delivers stable results, even under adverse flow conditions.

“L-Vis 510 also delivers accurate results when measuring the viscosity of suspensions,” reports Martin Joseph-Strasser, product manager for L-Vis 510 at Anton Paar GmbH. “This makes reliable process control a reality for liquids which are difficult or impossible to measure with other types of process viscometer.“