Memosens COS51E
Technical Data
CompareOxygen
| Measuring Principle | Amperometric oxygen measurement |
| 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 |
| Measuring range | 0.01 to 100 mg/l 0.00 to 1000 %SAT 0 to 2000 hPa |
| 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 |
| Ingress protection | IP 68 |
Applications
The Memosens COS51E is particularly suitable for all kinds of wastewater treatment and utility applications and can measure in hazardous areas. The sensor offers high measurement accuracy; humid environments do not interfere with the measurement results, making the process safer. The COS51E uses Memosens 2.0 digital technology. A large number of calibration and process parameters are stored in the sensor, making it the perfect basis for predictive maintenance and IIoT technology. Low maintenance and long service life make the sensor extremely cost-effective.
The Memosens COS51E dissolved oxygen sensor is suitable for:
Wastewater treatment plants:
- Oxygen input control in aeration basins (O2)
- Process water treatment and monitoring
Utilities:
- O2 control in biological treatment processes
- Process water treatment and monitoring
Waterworks:
- Drinking water condition monitoring (oxygen enrichment, corrosion protection, etc.)
- Water quality monitoring of river, lake or sea water
The sensor can measure in hazardous areas (ATEX, FM, CSA).
Benefits
Wide measuring range: membrane-covered measuring principle with cathode design; the sensor is suitable for all kinds of wastewater measurement, including industrial and municipal wastewater treatment plants.
High measurement accuracy: membrane-covered three-electrode design for long-term stable measurement with low drift.
Higher plant availability: Memosens technology combined with the Liquiline transmitter enables plug & play, fast sensor commissioning and replacement.
Non-contact inductive signal transmission for high process safety.
The sensor uses Memosens 2.0 digital technology and stores calibration and process parameters, making it the perfect basis for predictive maintenance and IIoT technology.
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Measurement principle video
Source: Endress+Hauserpublic information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Dissolved Oxygen Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Dissolved Oxygen.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Dissolved Oxygen for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Dissolved Oxygen Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Dissolved Oxygen.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Dissolved Oxygen for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Dissolved Oxygen Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Dissolved Oxygen.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Dissolved Oxygen for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Dissolved Oxygen Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Dissolved Oxygen.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Dissolved Oxygen for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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