The Memosens CCS51E digital free chlorine sensor quickly outputs stable measured values in drinking water, pool water, process water and utility applications. The sensor quickly outputs free chlorine measured values and requires only a small water sample. This ensures efficient process control and safe plant operation. The CCS51E uses Memosens 2.0 digital technology, guaranteeing high process safety and data integrity with simple device operation. It genuinely supports the implementation of predictive maintenance and IIoT applications.
Advantages
Compared to the colorimetric measuring principle, membrane-covered sensors have lower maintenance requirements, significantly reducing operating costs.
Extended uptime: allows laboratory pre-calibration of the sensor, true plug-and-play in the field, and effectively shortens the polarization time with Memosens 2.0 digital technology.
Fast response (t90 < 25 seconds), precise display of the process status, allowing the user to take timely measures in response to process changes and implement process control efficiently.
High process safety and efficient disinfectant dosing: long-term stable output of high-precision measured values, supports continuous process monitoring and flexible adjustment of the disinfectant dosage on demand.
Wide range of applications and broad measuring range: from trace free chlorine measurement to applications with free chlorine concentrations up to 200 mg/l.
Used with Liquiline multiparameter transmitters to simultaneously measure other relevant water analysis parameters such as pH and ORP.
Field of application
The Memosens CCS51E digital free chlorine sensor is suitable for measurement applications in all kinds of water quality:
Drinking water: guarantees the disinfection effect
Utilities: detecting the free chlorine concentration to avoid losses
Process water: ensures safe and hygienic food packaging and bottling processes
Pool water: ensures proper dosing of disinfectant
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Source:Endress+Hauserpublic information from the website
Technical Data
CompareDisinfection
| Measuring Principle | Free chlorine |
| Application | Ensuring reliable disinfection in drinking water Process water Dosing disinfectant efficiently in pool water Detect the absence or presence of free chlorine in Utilities Guarantee food safety and provide hygienic packaging and bottling |
| Characteristic | Amperometric measurement of dissolved free chlorine |
| Measuring range | Trace: 0 to 5 mg/l HOCl Standard: 0 to 20 mg/l HOCl High: 0 to 200 mg/l HOCl |
| Measuring method | Closed, membrane covered measuring cell Reduction of free chlorine at the cathode |
| Design | Closed amperometric 2-electrode measuring cell with PVDF membrane |
| Material | Sensor shaft: POM Membrane: PVDF Membrane cap: PVDF Sealing ring: FKM |
| Dimension | Diameter: 25 mm (0.98 inch) Length: 161 mm (6.34 inch) |
| Process temperature | 0 to 55 °C (32 to 130 °F), non-freezing |
| Process pressure | Max. 1 bar (max. 14.5 psi) |
| Temperature sensor | 10k NTC integrated (Memosens) |
| Connection | Inductive, digital connection head with Memosens |
Related Models
Case Studies
市政污水处理污水处理厂 · 消毒应用案例
项目背景
市政污水处理客户在污水处理厂环节,长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移,影响达标排放」的困扰,对消毒的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的消毒,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应市政污水处理复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
食品饮料食品生产线 · 消毒应用案例
项目背景
食品饮料客户在食品生产线环节,长期面临「卫生级测量要求高,在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰,对消毒的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的消毒,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应食品饮料复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
化工制药反应釜与储罐 · 消毒应用案例
项目背景
化工制药客户在反应釜与储罐环节,长期面临「介质腐蚀性强、工况复杂,仪表需耐腐蚀且防爆」的困扰,对消毒的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的消毒,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应化工制药复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
电力能源电厂锅炉与汽机 · 消毒应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节,长期面临「高温高压工况下测量不稳定,维护停机成本高」的困扰,对消毒的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的消毒,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应电力能源复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。





