Endress+hauser COS51E Digital oxygen sensor Memosens
- Precise dissolved oxygen measurement
- Memosens 2.0 digital technology
- Wide, stable measuring range
- Ideal for hazardous areas
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Description
COS51E: Your Advanced Dissolved Oxygen Sensor
The Endress+Hauser Memosens COS51E is a state-of-the-art sensor, perfectly engineered for the precise measurement of dissolved oxygen across a wide array of applications. It is exceptionally well-suited for all wastewater and utility sector requirements, including those in hazardous areas, ensuring robust performance where it matters most. The COS51E boasts high accuracy and superior moisture resistance, critically safeguarding the integrity and safety of your processes. At its heart is the Memosens 2.0 digital technology, which allows for the storage of extensive calibration and process data. This capability forms the perfect foundation for implementing predictive maintenance strategies and advanced IIoT (Industrial Internet of Things) services, enhancing operational efficiency and foresight.
Wastewater Excellence: Aeration and Treatment
Within wastewater treatment plants, the COS51E sensor plays a pivotal role in optimizing crucial processes. Its primary application includes precise oxygen (O2) control in the aeration basin, a fundamental stage for biological treatment where microorganisms consume organic pollutants. By maintaining the correct dissolved oxygen levels, the sensor ensures efficient biological activity, leading to improved water quality and reduced energy consumption in aeration systems. Additionally, it is ideal for process water treatment and monitoring throughout the plant, providing continuous data that allows for effective management and troubleshooting of water quality parameters, ensuring compliance and operational stability.
Industrial Utilities: Biological and Process Water
The COS51E’s versatility extends to the utilities of all industries, where maintaining optimal water quality is essential. In biological treatment processes across various industrial sectors, accurate dissolved oxygen measurement is key to supporting the health and efficiency of bioreactors and microbial processes. The sensor facilitates precise O2 control, ensuring that these biological systems function at their peak performance. Furthermore, it is invaluable for process water treatment and monitoring. Whether it’s for cooling systems, boiler feed water, or other industrial water applications, the COS51E provides the reliable dissolved oxygen data needed to prevent issues like corrosion, scaling, and microbial growth, thereby enhancing plant longevity and reducing maintenance costs.
Water Works: Drinking Water and Quality Monitoring
For water works and municipal water treatment facilities, the Memosens COS51E offers critical insights into drinking water status and overall water quality. It is perfectly suited for monitoring the oxygen enrichment levels in drinking water distribution systems, which can impact taste, odor, and corrosion processes. The sensor aids in corrosion protection monitoring by ensuring optimal dissolved oxygen levels are maintained, preventing premature degradation of pipes and infrastructure. Moreover, its application extends to general water quality monitoring in natural water bodies like rivers, lakes, and seas. This capability allows environmental agencies and water authorities to track the health of aquatic ecosystems and manage water resources more effectively, detecting changes and potential pollution events early.
Memosens 2.0: Future-Proofing Your Measurements
The integration of Memosens 2.0 digital technology within the COS51E sensor represents a significant advancement in sensor capabilities. This digital platform allows the sensor to store a substantially larger amount of calibration and process data compared to previous generations. This enriched data set is crucial for implementing sophisticated analytics, enabling predictive maintenance strategies by monitoring sensor health and performance trends. It also lays a robust foundation for seamless integration with IIoT services, facilitating remote diagnostics, data aggregation, and optimized process management. This forward-thinking technology ensures your investment in the COS51E is ready for the future of industrial automation and data utilization.
Amperometric Precision for Wide-Ranging Applications
The COS51E utilizes an amperometric, three-electrode measuring principle, which is specifically designed to offer a wide measuring range suitable for all wastewater applications, from small municipal plants to large industrial facilities. This principle, coupled with a carefully designed cathode, ensures the sensor is robust and reliable even in challenging media containing sulfides or other interfering substances commonly found in wastewater. The amperometric method provides highly accurate and long-term stable measurements with characteristically low drift, meaning fewer recalibrations are needed, and you can trust the data over extended periods, contributing to increased plant availability and reduced operational costs.
Enhanced Plant Availability Through Plug & Play
Increased plant availability is a key benefit delivered by the COS51E, largely due to the synergy between Memosens technology and compatible Liquiline transmitters. This combination enables a true “plug & play” experience for sensor commissioning and exchange. When a sensor needs maintenance or replacement, it can be quickly swapped out with a pre-calibrated Memosens sensor without the need for extensive recalibration on-site. This drastically reduces downtime, particularly during critical process phases. Furthermore, the non-contact, inductive signal transmission between the sensor and the transmitter head ensures maximum process integrity, preventing potential leaks or contamination risks often associated with physical connectors.
Specifications
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Measuring principle
Amperometric oxygen measurement
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Application
Typical applications are:
– Wastewater treatment plants: oxygen control in aeration basin, process water treatment and monitoring
.
– Water plants: status monitoring of drinking water, water quality monitoring in rivers, lakes or seas
.
– Utilities of all industries: Oxygen control in biological treatment, process water treatment and monitoring. -
Characteristic
Digital amperometric 3-electrode longterm-stable sensor to measure dissolved oxygen
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Measuring range
0.01 to 100 mg/l
0.00 to 1000 %SAT
0 to 2000 hPa -
Measuring principle
Measuring principle
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Design
Design
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Material
Sensor shaft: POM
Membrane cap: POM
Working electrode: Gold
Counter and reference electrode: silver/silver halide
Membrane: ETFE (COS51-TN), FEP (COS51-TF) -
Dimension
Diameter: 40mm (1.57 inch)
Shaft length: 146 mm (5.74 inch) -
Process temperature
-5 to 60 °C
(20 to 140 °F) -
Process pressure
Max. 5 bar abs
(Max. 72.5 psi abs) -
Temperature sensor
NTC 30k
-
Ex certification
With ATEX, IECEx, CSA C/US, NEPSI, JapanEx and INMETRO approval for use in Zone 0, Zone 1 and Zone 2 hazardous areas. With CSA
C/US approval also in Class I Division 1 hazardous areas in the
Gas Ex area. Additionally suitable for Class I Division 2. -
Connection
Inductive, contactless connection head with Memosens 2.0 technology
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Ingress protection
IP 68







