Effective pH monitoring pays off in the chemical industry

William Blythe’s portfolio features tin, copper and iodine compounds that are used in a wide range of markets. One major growth area is in the polymer additives market, with the company offering flame-retardant synergist products under the brand Flamtard. During the manufacturing of Flamtard, careful monitoring of the pH values is required to achieve the performance required, but the pH sensors being used were failing more frequently than in other applications.

In 2022/23, advice was sought from Endress+Hauser and the type of probe was changed to the digital pH sensor Memosens CPS71E. The sensor measures reliably even in extreme pH ranges or hazardous areas. The completely sealed inductive connection prevents moisture ingress and Memosens 2.0 digital technology enables best-practice offline calibration as the data is stored in the sensor. This increases process safety, simplifies operation and minimises downtime.

The pre-calibrated sensors are simply replaced in the process as required, without the need for awkward maintenance activities in the production area. Endress+Hauser also supplied a spreadsheet template to monitor the results of calibration and other sensor history to help William Blythe develop a proactive maintenance plan. That means sensors can be swapped before they fail while in use.