溶解氧传感器
Technical Data
CompareOxygen
| Measuring Principle | |
| Application | Process control in enzyme production, control of culture growth, biotechnology, food industry, general process applications |
| Installation | Standard process connection Pg 13.5 Installation in standard pH assemblies possible |
| Characteristic | Hygienic, optical sensor for stable oxygen measurement over multiple sterilization cycles Measurement possible in still water |
| Measuring range | 0.004 to 30 mg/l 0.05 to 330 %SAT 0.1 to 700 hPa |
| Measuring principle | Oxygen-sensitive molecules (marker) are integrated in an optical active layer (fluorescence layer). The fluorescence layer surface is in contact with the medium. The sensor optics are directed at the back of the fluorescence layer. The sensor optics transmit green light pulses to the fluorescence layer. The markers respond (fluoresce) with red light pulses. The duration and intensity of the response signals depend directly on the oxygen contents or partial pressure. |
| Design | Optical System, stainless steel |
| Material | Sensor shaft: stainless steel 1.4435 Process seal: FKM (USP , Class VI and FDA) Seal/O-rings: EPDM, FFKM (USP , Class VI and FDA) |
| Dimension | Diameter: 12 mm (0.47 inch) Shaft length: 120, 220, 360 and 420 mm (4.72, 8.66, 14.2 and 16.5 inch) |
| Process temperature | 0 to 140 °C (32 to 284 °F) |
| Process pressure | 0.02 to 13 bar abs (0 to 190 psi) |
| Temperature sensor | Pt1000 (Class A according to DIN IEC 60751) |
| Connection | Memosens-connection head |
| Certificates, declarations and approvals | Material certification 3.1 ASME BPE-2016 Regulation (EC) No. 1935/2004 |
The Memosens COS81D dissolved oxygen sensor is the ideal choice for hygienic applications, such as fermentation processes and inert protection against oxidation. The long-term stable, highly accurate measurement and the integrated continuous self-monitoring of the COS81D sensor guarantee the most reliable measured values, helping users achieve compliant product quality and optimize yield. Thanks to Memosens digital technology, the COS81D not only offers the highest process performance and data integrity, but is also simple to operate. It can be calibrated in the laboratory for predictive maintenance.
Benefits
Hygienic design in accordance with EHEDG and ASME BPE (including USP Cl. VI and FDA compliance) avoids cross-contamination and meets GMP and GLP requirements.
The sensor can be installed in the process and used in fermenters. Measurement results are completely consistent from the initial laboratory scale-up to the final enlarged process and the in-process laboratory.
The sensor can be replaced in just seconds for maximum process uptime: pre-calibrate the sensor in the laboratory, replace the existing sensor directly, plug & play. No polarization time required; measurement can begin immediately.
A built-in reference LED compensates for aging of the measuring LED, ensuring reliable measured values throughout the entire production batch.
Reduced maintenance: the Memosens COS81D contains no complex electrolyte or sensitive membrane. Simply replace the sensor cap and perform calibration.
Important sensor parameters and process data are stored in the Memosens COS81D sensor head. Throughout the sensor service life, the Memobase Plus CYZ71D sensor management software archives all stored parameters, providing fully traceable records and minimizing paperwork.
Suitable for CIP/SIP cleaning and autoclaving, with hazardous area approval.
Applications
The Memosens COS81D measures in demanding applications and aseptic hygienic applications, such as:
Fermentation processes
Inert protection against oxidation
Drinking water production
The Memosens COS81D dissolved oxygen sensor has international explosion-protection approvals, e.g. ATEX and IECEx, and can be used in hazardous areas.
Pharmaceutical certificates matching the sensor serial number are provided.
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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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