Sensor assures fast, stable and precise free chlorine measurement

Mike Edwards   

Products Endress+Hauser sensor

The Memosens CCS51D sensor for free chlorine introduced by Endress+Hauser is designed to keep drinking, process or pool water safe even at low water volumes.

Precise dosing control of free chlorine requires fast and sensitive measuring capability, according to Endress+Hauser, so the sensor features a special membrane design that assures an extremely fast response time, helping plant operators run their disinfection processes on tight limits and with only as much chemical usage as is required.

The sensor’s convex membrane made of dense, dirt-repellent material prevents soiling and makes it resistant to biofouling.

Ultrasonic welding of the membrane to the sensor cap ensures its integrity, preventing dilution of the electrolyte and thus a drift of the measuring signal.

The free chlorine sensor is equipped with the proven Memosens technology that allows for direct commissioning of new sensors without further calibration. (See Memosens video introduction below.)

During on-going operation, plant operators can pre-calibrate sensors in the lab, swap them into the process with plug & play, and thus continue measuring faster.

Finally, non-contact data transmission eliminates all measurement errors or even failures caused by humidity or corrosion.

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