Disinfection processes are set to become increasingly important in the future in light of current challenges such as climate change, water shortages and population growth.

The new generation of Endress+Hauser disinfection sensors with Memosens 2.0 technology helps both the water management sector and industry to overcome these challenges and safeguard a clean water supply for the future. 

In contrast to the frequently used DPD measuring method, amperometric sensors can output measured values continuously and instantly. Endress+Hauser disinfection sensors for chlorine dioxide, free chlorine, total chlorine, free bromine and ozone make use of this amperometric measuring principle.

According to Johannes Kienle, product manager at Endress+Hauser Liquid Analysis: "This real-time measurement enables our partners and customers to react immediately to process changes and thus improve dosing of the disinfectant, thereby saving costs." 

This is a special feature of the chlorine sensors as it is often difficult for these sensors to deliver reliable measurements after longer periods in which no chlorine is present. "They fall asleep, so to speak."

Endress+Hauser chlorine sensors, on the other hand, remain alert and are not deactivated even after periods where there is no chlorine. They start to measure immediately once chlorine is present.

Ready for Industry 4.0 thanks to Memosens 2.0 technology

Memosens technology has been revolutionizing liquid analysis. Digital Memosens sensors can be easily and quickly replaced with pre-calibrated sensors directly in the field via a plug-in connection. They convert the measured value into a robust digital signal and transmit it inductively, irrespective of moisture or other environmental influences.

Enhanced Memosens 2.0 technology unlocks even more potential from measured data by storing significantly more data. This means that the new generation of disinfection sensors offer additional functionality: they enable improved trend identification and form the basis for predictive maintenance and Industrial Internet of Things services. For example, the electrolyte counter and collected data (such as uptime, calibration history and load matrices) allow for application-specific maintenance intervals.

Simplicity means cost efficiency

All of these functions ensure maximum simplicity during installation, commissioning and maintenance and thus guarantee time savings in waterworks, sewage treatment plants and industrial plants. The following ensure even more simplicity leading to cost savings:

  • Reagents are not required: Using the amperometric measuring principle, no costly reagents are required. This also eliminates the need for their disposal and the associated workload. 
  • Faster polarisation time: The optimised polarisation time means that the disinfection sensors reach a stable display value faster after commissioning. This reduces system downtime and extends production time.
  • Low maintenance requirements and predictive maintenance: In addition to the Memosens 2.0 predictive maintenance capabilities described, robust components guarantee that the sensors are low-maintenance. One example for that is the convex membrane made of dense and stain-resistant material.

The measured value's journey from the liquid to the system – from a single source

Disinfection applications are versatile: Not only in waterworks, sewage treatment plants and in swimming pools, but also in food production and in many other industrial processes that are relevant to everyday life.

Endress+Hauser has expanded its disinfection portfolio continuously in recent years and, with the newly launched total chlorine sensor, now offers a tailored sensor for every measuring task: Memosens CCS50E for chlorine dioxide, Memosens CCS51E for free chlorine, Memosens CCS53E for total chlorine, Memosens CCS55E for free bromine and Memosens CCS58E for ozone.

Combined with the Liquiline transmitter platform and the Flowfit modular flow assembly, the global leader in measurement instrumentation offers all the components needed to complete the measuring point and digitally transfer measured data to the higher-level system from where you can make use of them. 

The Endress+Hauser Group

Endress+Hauser is a global leader in measurement and automation technology for process and laboratory applications. The family company, headquartered in Reinach, Switzerland, achieved net sales of over 3.7 billion euros in 2023 with a total workforce of almost 17,000.

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