Reliable Free Chlorine Monitoring for Disinfection Control

The Memosens CCS51E is designed for applications where maintaining the correct free chlorine concentration is essential for effective disinfection.

Continuous monitoring helps operators maintain stable disinfectant levels, improve process control and avoid unnecessary chemical consumption.

Digital Memosens Technology for Easier Operation

The CCS51E uses Memosens 2.0 digital technology, storing sensor information and calibration data directly inside the sensor.

This allows easier sensor replacement, simplified commissioning and improved data integrity during operation.

Stable Amperometric Measurement

The sensor uses a closed, membrane-covered amperometric measuring cell to measure dissolved free chlorine.

The free chlorine is reduced at the cathode, generating a measurement signal proportional to the chlorine concentration. This proven principle provides reliable monitoring for continuous disinfection applications.

Designed for Water Treatment and Hygienic Applications

The CCS51E is suitable for various water qualities and disinfection processes, including:

• 
  Drinking water treatment
  
• 
  Process water monitoring
  
• 
  Food and beverage production water
  
• 
  Pool water disinfection
  
• 
  Utility water systems
  

It helps ensure effective disinfection while supporting safe and stable process operation.

Fast Response for Efficient Process Control

The sensor provides fast response times, including applications with low water volumes.

Combined with Liquiline transmitters, the CCS51E can be integrated into complete liquid analysis systems with additional parameters such as pH and ORP.

Key Features

• 
  Digital free chlorine sensor
  
• 
  Memosens 2.0 technology
  
• 
  Amperometric measurement principle
  
• 
  Measuring ranges:
  
  
  0–5 mg/l HOCl
  
  
  0–20 mg/l HOCl
  
  
  0–200 mg/l HOCl
  
  
  
• 
  Process temperature 0–55°C
  
• 
  Maximum process pressure 1 bar
  
• 
  Closed membrane-covered measuring cell
  
• 
  Two-electrode measuring system
  
• 
  Integrated temperature sensor
  
• 
  Fast response time
  
• 
  Compatible with Liquiline transmitters
  
• 
  Suitable for drinking water and process water applications
  

Typical Applications

Drinking Water Disinfection

Monitoring free chlorine levels to ensure reliable drinking water disinfection.

Food and Beverage Production

Checking disinfectant concentration in process water and supporting hygienic production conditions.

Pool Water Treatment

Helping optimize disinfectant dosing and maintain suitable chlorine levels.

Utility Water Systems

Monitoring free chlorine to protect processes and maintain water quality.

Frequently Asked Questions

What is the Endress+Hauser Memosens CCS51E used for?

The CCS51E is a digital sensor for measuring free chlorine (HOCl) concentration in water and process applications.

Is CCS51E a chlorine dioxide sensor?

No. The CCS51E measures free chlorine, while products such as CCS50E are designed for chlorine dioxide (ClO₂) measurement.

What measurement principle does CCS51E use?

The sensor uses an amperometric measurement principle with a closed membrane-covered measuring cell.

What is the measuring range of CCS51E?

Depending on the selected version, the measuring ranges are:

• 
  0–5 mg/l HOCl
  
• 
  0–20 mg/l HOCl
  
• 
  0–200 mg/l HOCl
  

What industries use CCS51E?

Typical applications include drinking water treatment, food and beverage process water, pool water and industrial utility systems.

Which transmitter is used with CCS51E?

The CCS51E is designed for connection with compatible Endress+Hauser Liquiline transmitters using Memosens technology.

What are the advantages of Memosens technology?

Memosens stores calibration and sensor data digitally, helping simplify maintenance, improve data reliability and support predictive maintenance strategies.