The Memosens CCS51D free chlorine sensor is robust and requires low maintenance. The sensor performs high-precision measurement with high long-term stability in drinking water, pool water and process water; it reliably monitors the disinfection process even at low flow rates. The short response time of the free chlorine sensor ensures efficient process control and process safety. The CCS51D uses Memosens digital technology for the highest process and data integrity, and is easy to operate.
Benefits
A suitable sensor for every application: from trace measurement up to a free chlorine concentration of no more than 200 mg/l.
Short response time (t90 < 25 seconds) with high-precision indication of process status, enabling prompt action in response to process changes and efficient process control.
Greater process safety: accurate and long-term stable measurement enables permanent process monitoring, with flexible on-demand adjustment of the disinfectant concentration.
The fluorescence-based sensor requires low maintenance and, compared with colorimetric measuring systems, significantly reduces the operating costs of the measuring point.
Fast and convenient sensor replacement for longer uptime: laboratory pre-calibrated sensor, plug-and-play on site.
Used together with the Liquiline multiparameter transmitter, it can simultaneously measure other relevant water analysis parameters such as pH and ORP.
Applications
The Memosens CCS51D free chlorine sensor meets the requirements of skid manufacturers and end users. It reliably measures:
Drinking water: ensures reliable disinfection
Food: ensures food safety and hygienic bagged and bottled products
Utilities: detects the presence of free chlorine
Pool water: efficient dosing of disinfectant
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Measurement principle video
Source: Endress+Hauserpublic information from the website
Technical Data
CompareDisinfection
| Measuring Principle | |
| 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
| Model | Name |
|---|---|
| CCS51D-AA11AD | 余氯传感器 |
| CCS51D-AA11AD+NC | 余氯传感器 |
| CCS51D-AA11AD+NCZ1 | 余氯传感器 |
| CCS51D-AA11BF | 余氯传感器 |
| CCS51D-AA11BF+NC | 余氯传感器 |
| CCS51D-AA11CJ+NC | 余氯传感器 |
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。




