TESTA Analytical: Fast & Accurate Measurement of MassFlow from Peristaltic Pumps

TESTA Analytical Solutions e.K reports how its real time flowmeter can be used to determineaverage flow rate as well as peak values of pulsation, thereby enablingselection of the most appropriate setting for any peristaltic pumpapplication.  Benefiting from their affordability,ease-of-use, and flexibility – peristaltic pumps are used for a wide range ofapplications ranging from simple solvent transfer to more complex flowchemistries and lab scale reactions.  Carlo Dessy – Technical Director of TESTAAnalytical commented “As simple and dependable as peristaltic pumps are, theydo however come with drawbacks intrinsic to their design and principle ofoperation. The flow rate of a peristaltic pump cannot be determined just by thephysical dimensions of the peristaltic wheel and tubing and its speed ofrotation.
 

 

Other factors including the viscosity of the transported liquid, flowpulsations, back pressure and aging of the pump tubing are known to have asignificant influence on obtained flow rate.”  He added “While simple applications likesolvent transfer may not require a constant and known flow rate. More complexapplications, such as reagent mixing for lab scale reactions and flow chemistriesdemand an accurate measure of flow rate to obtain reproducible and accurateexperimental results. In independent testing by a major pharmaceutical company,our real-time flowmeter has been shown to be a valuable tool to improve globalperformance of systems equipped with peristaltic pumps by  supplying fast and accurate values of flowrate and average flow rate. This data enables easy calculation of deliveredquantities (mass flow) of reagent and the velocity of their introductioninto the reactor. Also, the high sensitivity of our flowmeter has been shown toprovide early detection of tube aging and loss of performance, thereforehelping avoid unnecessary peristaltic pump failure, costly downtime, and lossof expensive reagents.”

Compact in size, and conveniently poweredvia a USB connection, the TESTA Analytical real time liquid flowmeteruses a thermal flow sensor that is not only extremely accurate, sensitive, andhigh-resolution – but it also offers the advantage of being non-invasive.As the sensor does not interfere with the measurement it canoperate over a wide dynamic range and has been demonstrated to be the perfectreal-time liquid flow monitoring tool for a growing range of applications.  
 
For further information on the real-time flowmeterplease visit https://www.testa-analytical.com/flowmeter-request.html or contact Testa Analytical Solutions on +49-30-864-24076 / info@testa-analytical.com.
 
TESTA Analytical Solutions is a leading specialist supplier of liquid chromatographyinstruments and detectors. Drawing upon over 30-years’ experience, TESTAAnalytical Solutions has established itself as a respected creator and supplierof top quality, innovative, high performance chromatography instrument kits,and detectors with OEM clients around the world.