 
                  Specs at a glance
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                              Measuring rangeTrace: 0 to 5 mg/l HOCl 
 Standard: 0 to 20 mg/l HOCl
 High: 0 to 200 mg/l HOCl
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                              Process temperature0 to 55 °C (32 to 130 °F), non-freezing 
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                              Process pressureMax. 1 bar (max. 14.5 psi) 
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                              Measuring methodClosed, membrane covered measuring cell 
 Reduction of free chlorine at the cathode
Field of application
Memosens CCS51E ensures precise and consistent disinfection monitoring in drinking water, pool and process water and in utilities. This sensor for determining free chlorine features extremely fast response times even at low water volumes. This guarantees efficient process control and safe processes. Thanks to Memosens 2.0 technology, CCS51E combines maximum process and data integrity with simple operation. This provides the perfect basis for predictive maintenance and IIoT connectivity.
The free chlorine sensor Memosens CCS51E is suitable for a wide range of water qualities:
- Drinking water: to secure disinfection 
- Utilities: to detect free chlorine and avoid any damage 
- Process water: for hygienic and safe packaging and bottling of products in food processing 
- Pool water: to dose disinfectant efficiently 
Benefits
- The low-maintenance, amperometric sensor reduces the cost of ownership of the measuring point, particularly compared to colorimetric measuring systems. 
- Increased process up-time: pre-calibration of the sensor allows for real plug & play and faster polarization time thanks to Memosens 2.0 technology. 
- Fast response time (t90 < 25 s) provides an accurate process view and enables prompt reaction to process changes as well as efficient process control. 
- High process safety and efficient dosing: precise and long-term stable measurement ensures consistent process monitoring and permits individually adapted disinfectant dosing. 
- Suitable sensor versions for every measurement range: From trace measurement up to free chlorine concentrations of 200 mg/l. 
- Connection to the Liquiline multiparameter transmitter facilitates easy combination with other parameters of liquid analysis such as pH and ORP. 
Videos
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        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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        Specialized products 
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
| 
 Fundamental selection Meet your basic measurement needs | Technical excellence | Simplicity | 
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 Lean selection Handle your core processes easily | Technical excellence | Simplicity | 
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 Extended selection Optimize your processes with innovative technologies | Technical excellence | Simplicity | 
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 Xpert selection Master your most challenging applications | Technical excellence | Simplicity Variable | 
Extended selection
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        High-end products 
- Highly functional and convenient
Technical excellence
Simplicity
 
                              Predecessor
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                                                    Technical Information (TI)
 TI Memosens CCS51EEnglish version - 10/2023 Digital sensor with Memosens technology for determining free chlorine EN 23/10/2023Language: English Version: 23/10/2023 File size: 1.4 MB File name: TI01768CEN_0123-00.pdf 
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                                                    Operating Instruction (BA)
 BA Memosens CCS51EEnglish version - 09/2023 Digital sensor with Memosens technology for determining free chlorine EN 27/09/2023Language: English Version: 27/09/2023 File size: 1.7 MB File name: BA02314CEN_0123-00.pdf 
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                                                            Technical Information (TI)
 TI Memosens CCS51EDigital sensor with Memosens technology for determining free chlorine EN 23/10/2023Language: English Version: 23/10/2023 File size: 1.4 MB File name: TI01768CEN_0123-00.pdf 
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                                                            Operating Instruction (BA)
 BA Memosens CCS51EDigital sensor with Memosens technology for determining free chlorine EN 27/09/2023Language: English Version: 27/09/2023 File size: 1.7 MB File name: BA02314CEN_0123-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA Memosens disinfection sensorsNI Class I Div 2 Groups A, B, C, D T6 
 Ex ic IIC T6 Gc
 Class I Zone 2 AEx ic IIC T6 Gc
 Safety instructions for electrical apparatus in explosion-hazardous
 areasEN 13/08/2024Language: English Version: 13/08/2024 File size: 571.9 KB File name: XA03332CEN_0124-00.pdf 
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                                                            PU (Publication)
 Disinfection applicationsMeasuring ranges and suitable sensors Language: English Version: 16/06/2023 File size: 603.1 KB File name: PU01405CEN-disinfection-sensor-application.pdf 
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                                                            PU (Publication)
 Infographic disinfection portfolioInfographic on disinfection sensors with Memosens 2.0 technology Language: German Version: 13/06/2024 File size: 2.2 MB File name: EHLA_de_24_FO-Disinfection_infographic-PU01581C07DE0124.pdf 
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                                                            PU (Publication)
 DesinfektionsanwendungenMessbereiche und geeignete 
 SensorenLanguage: German Version: 03/11/2023 File size: 678.7 KB File name: PU01405CDE_02.23_Desinfektionsanwendungen.pdf 
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                                                            PU (Publication)
 Infografika portfolia dezinfekceInfografika o dezinfekčních senzorech s technologií Memosens 2.0 Language: Czech Version: 08/10/2024 File size: 198.2 KB File name: FO_Disinfection_script_infographic-PU01581C07_CS.pdf 
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                                                            PU (Publication)
 Infographic disinfection portfolioInfographic on disinfection sensors with Memosens 2.0 technology Language: English Version: 13/06/2024 File size: 2.2 MB File name: EHLA_en_24_FO-Disinfection_infographic-PU01581C07EN0124.pdf 
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                                                            Competence Brochure (CP)
 Desinfektion ist überallSauberes und sicheres Wasser für Wasserwerke, Kläranlagen und Industrie Language: German Version: 07/09/2023 File size: 1.6 MB File name: CP01548CDE_Desinfektion.pdf 
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                                                            Competence Brochure (CP)
 Disinfection is all around usClean and safe water for waterworks, wastewater treatment plants and ind Language: English Version: 22/06/2023 File size: 1.5 MB File name: CP01548CEN_Disinfection.pdf 
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