Conductivity promises optimum ROI

Clean-in-place (CIP) procedures are widely used after each batch run in a range of industries to prevent bacterial growth and contamination and to maintain the highest product quality. One of the biggest challenges to the CIP process comes at the sanitising stage, when various ratios of acid, caustic and antibacterial agents are involved. Such non-binary solutions make it difficult for users to determine optimum concentrations and temperatures and the result is excess chemical and neutralisation costs, plus longer cleaning cycles. For optimum return on investment (ROI), users need conductivity measurement equipment with the ability to consecutively and accurately measure conductivity by auto-switching between all applications with just one loop. Invensys Foxboro 875EC analysers offer this solution, being able to auto switch applications one of two ways by using a set point for high or low conductivity and a digital contact signal from a host such as a PLC. Any combination of electrodeless conductivity or flow-through sensors (871FT or 871EC) together with either analyser (870ITEC or 875EC) provide rapid, accurate interface detection. The 871FT flow-through non-invasive electrodeless conductivity sensor can be vertically or horizontally adapted to any process by threaded or flanged end connections and is available in line sizes from 0.5 to 4.0 inches and a variety of construction materials to ensure compatibility. The 871EC invasive electrodeless sensor installation requires a minimum three inch diameter pipe (to avoid errors in conductivity readings due to wall effect) or can be vessel mounted; the 875EC is a microprocessor-based, menu-driven AC powered analyser that provides a dual measurement indication and dual 4-20 mA isolated analogue outputs; and the 870ITEC is a microprocessor based two-wire intelligent transmitter that provides a measurement indication and a single 4-20 mA output. Enquiry card number: 108