Endress Hauser Digital non-glass pH sensor Memosens CPS77E CPS97E CPS47E
The Memosens CPS77E, CPS97E, and CPS47E are digital non-glass pH sensors from Endress+Hauser, utilizing ISFET (Ion-Sensitive Field-Effect Transistor) technology for reliable measurement without the risk of glass breakage. Each sensor is engineered for specific application profiles while sharing Memosens 2.0 digital technology for enhanced process safety and predictive maintenance capabilities.
Key Features and Benefits
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Application-Specific Design: The CPS77E is the specialist for hygienic and sterile applications in food and beverage, biotechnology, and pharmaceutical industries, featuring a bacteria-proof ceramic junction and stabilized gel reference. The CPS97E is designed for heavily contaminated media with high fibre or suspended solids content, featuring an open aperture that prevents clogging in dispersions, precipitations, and emulsions. The CPS47E is the high performer with liquid KCl reference for media with low conductivity or high organic load, making it suitable for boiler feedwater and water for injection applications.
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No Glass Breakage Risk: All sensors feature a non-glass PEEK sensor body, ensuring highest product safety where glass breakage is intolerable.
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Memosens 2.0 Digital Technology: Offers extended storage of calibration and process data, enabling better trend identification and providing a future-proof basis for predictive maintenance and enhanced IIoT services.
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Low Maintenance with ISFET Technology: ISFET technology is insensitive to temperature fluctuations and shows virtually no acid or alkaline errors, allowing for long calibration intervals.
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Maximum Process Safety: Non-contact, inductive signal transmission eliminates all problems caused by moisture or corrosion, and enables laboratory calibration while the process is running.
Technical Specifications (at a Glance)
| Specification | CPS77E | CPS97E | CPS47E |
|---|---|---|---|
| Application | Hygienic/sterile applications (food, biotech, pharma) | Contaminated media with suspended solids (chemical, pulp & paper, minerals) | Low conductivity/high organic load media (chemical, power, life sciences) |
| Measuring Range | pH 0 to 14 | pH 0 to 14 | pH 0 to 14 |
| Process Temperature | –15 to 135°C (5 to 275°F) | –15 to 110°C (5 to 230°F) | –15 to 135°C (5 to 275°F) |
| Process Pressure | Max. 11 bar abs at 100°C | Max. 11 bar abs at 100°C | Max. 11 bar abs at 100°C |
| Reference System | Stabilized gel, ceramic junction | Stabilized gel, open aperture | Liquid KCl, separate reference lead |
| Wetted Materials | PEEK shaft, FFKM seals, ceramic junction | PEEK shaft, FFKM seals, open aperture | PEEK shaft, FFKM seals, ceramic junction |
| Connection | Inductive, digital Memosens 2.0 | Inductive, digital Memosens 2.0 | Inductive, digital Memosens 2.0 |
| Ingress Protection | IP68 | IP68 | IP68 |
| Hygienic Approvals | EHEDG, 3A, EU1935/2004, USP 87/88 | EHEDG, 3A, EU1935/2004, USP 87/88 | EHEDG, 3A, EU1935/2004, USP 87/88 |
| Hazardous Area Approvals | ATEX, IECEx, CSA C/US, NEPSI, JPN Ex, INMETRO, UKCA, Korea Ex | ATEX, IECEx, CSA C/US, NEPSI, JPN Ex, INMETRO, UKCA, Korea Ex | ATEX, IECEx, CSA C/US, NEPSI, JPN Ex, INMETRO, UKCA, Korea Ex |
The Memosens CPS77E, CPS97E, and CPS47E deliver reliable, application-specific non-glass pH measurement, combining ISFET technology for glass-free operation, Memosens 2.0 for advanced diagnostics, and comprehensive hygienic and hazardous area approvals.
Endress Hauser Digital non-glass pH sensor Memosens CPS77E CPS97E CPS47E
The Memosens CPS77E, CPS97E, and CPS47E are digital non-glass pH sensors from Endress+Hauser, utilizing ISFET (Ion-Sensitive Field-Effect Transistor) technology for reliable measurement without the risk of glass breakage. Each sensor is engineered for specific application profiles while sharing Memosens 2.0 digital technology for enhanced process safety and predictive maintenance capabilities.
The Memosens CPS77E is the specialist for hygienic and sterile applications in the food and beverage, biotechnology, and pharmaceutical industries. It features a bacteria-proof ceramic junction and stabilized gel reference, ensuring reliable measurement in demanding hygienic environments. The sensor handles process temperatures from –15 to 135°C (5 to 275°F) and pressures up to 11 bar absolute at 100°C. It holds comprehensive hygienic approvals including EHEDG, 3A, EU1935/2004, and USP 87/88.
The Memosens CPS97E is designed for heavily contaminated media with high fibre or suspended solids content. Its open aperture prevents clogging in dispersions, precipitations, and emulsions, making it ideal for chemical, pulp and paper, and minerals applications. The sensor handles process temperatures from –15 to 110°C (5 to 230°F) and pressures up to 11 bar absolute at 100°C. It also holds hygienic approvals including EHEDG, 3A, EU1935/2004, and USP 87/88.
The Memosens CPS47E is the high performer with liquid KCl reference for media with low conductivity or high organic load. It is suitable for boiler feedwater and water for injection applications in the chemical, power, and life sciences industries. The sensor handles process temperatures from –15 to 135°C (5 to 275°F) and pressures up to 11 bar absolute at 100°C. It features a separate reference lead for reliable measurement in challenging conditions and holds hygienic approvals including EHEDG, 3A, EU1935/2004, and USP 87/88.
All three sensors feature a non-glass PEEK sensor body, ensuring highest product safety where glass breakage is intolerable. ISFET technology is insensitive to temperature fluctuations and shows virtually no acid or alkaline errors, allowing for long calibration intervals and low maintenance requirements.
Memosens 2.0 digital technology offers extended storage of calibration and process data, enabling better trend identification and providing a future-proof basis for predictive maintenance and enhanced IIoT services. Non-contact, inductive signal transmission eliminates all problems caused by moisture or corrosion, and enables laboratory calibration while the process is running.
All sensors connect via an inductive, digital connection head with Memosens 2.0 technology and are rated IP68 for ingress protection. They hold comprehensive hazardous area approvals including ATEX, IECEx, CSA C/US, NEPSI, JPN Ex, INMETRO, UKCA, and Korea Ex.
The Memosens CPS77E, CPS97E, and CPS47E deliver reliable, application-specific non-glass pH measurement, combining ISFET technology for glass-free operation, Memosens 2.0 for advanced diagnostics, and comprehensive hygienic and hazardous area approvals.








