Product Overview
E+H Memosens CPS77E Digital ISFET pH Sensor
Memosens CPS77E
The Endress+Hauser Memosens CPS77E is a shatterproof digital ISFET pH sensor designed for hygienic applications in the food, beverage, and life sciences industries where glass contamination must be strictly prevented. Operating on inductive Memosens 2.0 digital technology, it provides fast, stable pH measurements and withstands harsh Clean-In-Place (CIP) and Sterilization-In-Place (SIP) cycles.
Hygienic Glass-Free pH Measurement with Endress+Hauser Memosens CPS77E
The Endress+Hauser Memosens CPS77E is a premier digital ISFET (Ion-Selective Field-Effect Transistor) pH sensor engineered specifically for hygienic processes in the food, beverage, pharmaceutical, and biotechnology sectors. In processes where traditional glass pH electrodes pose a risk of glass breakage and batch contamination, the CPS77E provides a 100% glass-free, shatterproof alternative that maintains strict compliance with sanitary production guidelines.
Advanced ISFET Chip & Shatterproof PEEK Design
Unlike conventional pH glass bulbs, the Memosens CPS77E utilizes an integrated semiconductor ISFET chip embedded in a biocompatible PEEK (Polyether ether ketone) shaft. The ISFET chip directly measures hydrogen ion activity at the gate surface, yielding exceptionally fast response times even at low temperatures. Its completely non-glass, robust physical construction prevents physical breakage during installation, manual handling, or intense vessel agitator operation, safeguarding product integrity across high-value hygienic batches.
Memosens 2.0 Digital Technology & Contactless Signal Transmission
Equipped with cutting-edge Memosens 2.0 technology, the CPS77E converts analog pH signals into a digital protocol directly inside the sensor head. Inductive, non-contact signal transmission eliminates corrosion and moisture interference commonly caused by humidity, steam, or washdowns in hygienic processing environments. The sensor stores calibration history, operating hours, and process load data internally, enabling offline lab calibration and true plug-and-play field replacement without recalibration on the plant floor.
Key Performance Features & Technical Advantages
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100% Glass-Free & Shatterproof: PEEK shaft and semiconductor ISFET chip protect hygienic production lines from glass contamination.
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Memosens 2.0 Digital Signal: Non-contact inductive coupling resists moisture, humidity, and cable interference.
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CIP/SIP Steam Resistance: Engineered to withstand automated Clean-In-Place (CIP) chemical washes and high-temperature Sterilization-In-Place (SIP) cycles up to 135 °C (275 °F).
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Predictive IIoT Maintenance: Stores sensor lifetime analytics and calibration history to support IIoT condition monitoring via Heartbeat Technology.
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Hygienic Certifications: Fully compliant with EHEDG, 3-A, USP <87>/<88> Class VI, and FDA sanitary standards for food and pharmaceutical contact.
Optimized Operational Safety in Food & Pharma
By eliminating glass breakage risks while delivering continuous, high-speed pH tracking, the Memosens CPS77E reduces batch discard risks, lowers maintenance downtime, and simplifies regulatory compliance across automated hygienic production processes.
Applications
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Food & Beverage Industry: Dairy processing, cheese production, fruit juice processing, baby food manufacturing, and sauce blending.
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Pharmaceuticals & Biotechnology: Bioreactor fermentation, cell culture media, purification loops, and liquid dosage manufacturing.
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Hygienic Fine Chemicals: High-purity chemical processing where glass contamination or hydrofluoric acid presence restricts glass electrode usage.
Technical Specifications
| Parameter / Feature | Specification Details |
| Measuring Principle | ISFET (Ion-Selective Field-Effect Transistor) semiconductor pH sensor |
| Communication / Protocol | Memosens 2.0 digital technology (Contactless inductive connection) |
| Measuring Range | pH 0 to 14 |
| Process Temperature | -15 °C to +135 °C (+5 °F to +275 °F) |
| Process Pressure (Abs.) | 0.8 bar to 11 bar (11.6 psi to 159.5 psi) |
| Sensor Body / Shaft Material | PEEK (Polyether ether ketone) – Biocompatible |
| Reference System | Gel-filled reference with ceramic diaphragm or open aperture |
| Process Connections | Pg 13.5 thread (fits standard sanitary assemblies) |
| Ingress Protection | IP68 / NEMA 6P |
| Sanitary Approvals | EHEDG, 3-A, FDA compliant, USP <87>/<88> Class VI, TSE/BSE free |
| Explosion Protection | ATEX, IECEx, CSA, NEPSI, EAC Ex approvals |
FAQ
Q1: Why choose an ISFET pH sensor like the Memosens CPS77E over a traditional glass electrode?
Answer: The CPS77E is completely glass-free, eliminating the risk of glass breakage and batch contamination in food, beverage, and pharmaceutical processes where glass is strictly prohibited.
Q2: How does Memosens 2.0 digital technology benefit process operations?
Answer: Memosens 2.0 provides contactless inductive signal transmission that is completely immune to moisture and corrosion, while storing calibration data inside the sensor for fast, offline lab calibration.
Q3: Can the Memosens CPS77E withstand high-temperature SIP sterilization?
Answer: Yes, the CPS77E is built to endure automated CIP chemical cleaning and SIP steam sterilization cycles up to 135 °C (275 °F).
Q4: What hygienic certifications does the CPS77E hold?
Answer: The CPS77E complies with international sanitary and biocompatibility standards, including EHEDG, 3-A, FDA, and USP Class VI.
Product documents
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