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Digital non-glass pH sensor Memosens CPS77E

Memosens 2.0 ISFET pH electrode for food & beverage and life sciences industries

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Digital non-glass pH sensor Memosens CPS77E

Memosens 2.0 ISFET pH electrode for food & beverage and life sciences industries

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Benefits

  • Memosens 2.0 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.
  • Unbreakable PEEK sensor body ensures highest product safety where glass breakage is intolerable.
  • With its certified biocompatibility and pharma compliance (optional Pharma CoC), the sensor protects the quality of your products.
  • The sensor is suitable for hot steam sterilization and autoclaving offering long-term stable measurements.
  • Low maintenance: ISFET technology is insensitive to temperature variations and shows virtually no acid or alkaline errors, allowing for long calibration intervals.
  • Six times higher CIP stability compared to conventional ISFET pH sensors ensures a longer lifetime even when the sensor is exposed to cleaning in place.
  • Maximum process safety: Non-contact inductive signal transmission eliminates all problems due to moisture or corrosion.

Integrated technologies

Memosens technology
Liquiline: cutting-edge transmitter platform
FLEXible answers to individual needs
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Digital non-glass pH sensor Memosens CPS77E

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Xpert selection Master your most challenging applications
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Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

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Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

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Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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Technology
Memosens technology

Memosens 2.0: Cutting-edge sensor technology reloaded

Make life easier, increase process safety and stay connected with Memosens 2.0 digital technology.

Technology

Liquiline: cutting-edge transmitter platform

By choosing the Liquiline platform, you’re effectively choosing to spend less money on stock holding, save installation time and gain operational safety!

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Product information

Memosens CPS77E - ISFET pH sensor for food & beverage and life sciences industries
Memosens CPS77E non-glass pH sensor
Specifications
Measuring / Application task pH
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Description

Memosens CPS77E is the expert for hygienic applications. Its bacteria-proof reference with highly stable gel guarantees reliable measurements. The unbreakable sensor is sterilizable with hot steam, autoclavable and assures highest product safety. CPS77E features Memosens 2.0 digital technology, offering extended storage of calibration and process data for predictive maintenance. The sensor resists moisture and enables lab calibration, enhancing process integrity and increasing process uptime.

Field of application

Hygienic and sterile applications:

  • Food & beverage industry
  • Life sciences
  • Biotechnology

With all relevant approvals for hygienic applications such as EHEDG, 3A, EU1935/2004, USP 87/88.

Benefits
  • Memosens 2.0 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.
  • Unbreakable PEEK sensor body ensures highest product safety where glass breakage is intolerable.
  • With its certified biocompatibility and pharma compliance (optional Pharma CoC), the sensor protects the quality of your products.
  • The sensor is suitable for hot steam sterilization and autoclaving offering long-term stable measurements.
  • Low maintenance: ISFET technology is insensitive to temperature variations and shows virtually no acid or alkaline errors, allowing for long calibration intervals.
  • Six times higher CIP stability compared to conventional ISFET pH sensors ensures a longer lifetime even when the sensor is exposed to cleaning in place.
  • Maximum process safety: Non-contact inductive signal transmission eliminates all problems due to moisture or corrosion.
Downloads
Most downloaded
Technical Information (TI)
TI Memosens CPS77E ISFET sensor for pH measurement
English version - 10/2023
Download
Operating Instruction (BA)
BA Memosens ISFET sensors CPS47E, CPS77E, CPS97E pH measurement
English version - 07/2026
Download
Ex Safety Instruction (XA)
Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus in explosion-hazardous
areas
KOR Ex ia IIC T3/T4/T6 Ga
KOR Ex ia IIC T4/T6 Ga
English version - 10/2021
Download
The CAD Drawings will be available after the configuration.
All downloads
47 Downloads
Technical Information (TI)
Most downloaded
TI Memosens CPS77E ISFET sensor for pH measurement
English version - 10/2023
Download
Operating Instruction (BA)
Most downloaded
BA Memosens ISFET sensors CPS47E, CPS77E, CPS97E pH measurement
English version - 07/2026
Download
Ex Safety Instruction (XA)
Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus in explosion-hazardous
areas
KOR Ex ia IIC T3/T4/T6 Ga
KOR Ex ia IIC T4/T6 Ga
English version - 10/2021
Download
Ex Safety Instruction (XA)
Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus in explosion-hazardous
areas
UK Ex II 1 G Ex ia IIC T3/T4/T6 Ga
Uk Ex II 1 G Ex ia IIC T4/T6 Ga
English version - 08/2021
Download
Ex Safety Instruction (XA)
XA Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus in explosion-hazardous
areas
NEPSI Ex ia IIC T3/T4/T6 Ga
NEPSI Ex ia IIC T4/T6 Ga
English version - 11/2024
Download
Ex Safety Instruction (XA)
XA Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
CSA C/US IS Cl. 1 Div. 1 GP A-D T3/T4/T6 + CSA C/US IS Cl. 1 Zone 0 AEx ia IIC T3/T4/T6
CSA C/US IS Cl. 1 Div. 1 GP A-D T4/T6 + CSA C/US IS Cl. 1 Zone 0 AEx ia IIC T4/T6
CSA C/ US Cl. 1 Div 1&2 GP A-D T6…T3
English version - 05/2026
Download
Ex Safety Instruction (XA)
XA Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus for explosion-hazardous areas
ATEX II 1G Ex ia IIC T3/T4/T6 Ga
ATEX II 1G Ex ia IIC T4/T6 Ga
IECEx Ex ia IIC T3/T4/T6 Ga
IECEx Ex ia IIC T4/T6 Ga
English version - 01/2025
Download
Ex Safety Instruction (XA)
XA Memosens ISFET pH sensors pH measurement
Safety instructions for electrical apparatus in explosion-hazardous
areas
English version - 11/2024
Download
Ex Safety Instruction (XA)
XA Memosens ISFET pH sensors pH measurement
EAC Ex 0Ex ia IIC T3/T4/T6 Ga X
EAC Ex 0Ex ia IIC T4/T6 Ga X
English version - 04/2025
Download
Ex Safety Instruction (XA)
Memosens ISFET pH sensors pH measurement
Supplement to BA02154C
Safety instructions for electrical apparatus in explosion-hazardous
areas
JPN Ex ia IIC T3/T4/T6 Ga
JPN Ex ia IIC T4/T6 Ga
English version - 08/2021
Download
Special Documentation (SD)
SD Hygienic applications Liquid analysis equipment
English version - 08/2023
Download
PU (Publication)
ライフサイエンスにおけるラボからプロセスまでの監視と制御 バイオプロセスの物理的・化学的特性の信頼性の高い測定 この製品リストは、ライフサイエンス業界におけるバイオプロセス
用途向けに、光学分析および液体分析の両方から提供される分析機
器をまとめたものです。含まれる製品には、Raman Rxn2アナライザ
、Raman Rxn4アナライザ、Rxn-10プローブ、バイオマルチオプティ
ックおよびバイオスリーブ、ラマンフローアセンブリ、Rxn-45プロ
ーブ、Rxn-46プローブ、シングルユース向けラマンオプティックシ
ステム、Memosens CPS61E、Memosens COS81E、OUSBT66、Memosens
CPS77E、Memosens CLS82E、OUSAF44、Memosens CPS11E、Memosens
CLS16E、TOCアナライザーCA79、Liquiline変換器プラットフォーム
、およびMemobaseソフトウェアが含まれています。
Japanese version - 08/2025
Download
PU (Publication)
Lab-to-process monitoring & control in Life Sciences - Reliable measurement of bioprocess physical and chemical properties A combined product list of analysis offerings from both Optical Analysis
and LIquid Analysis for bioprocessing applications in the life science
industry (including Raman Rxn2 analyzer, Raman Rxn4 analyzer,
Rxn-10 probe, bio multi optic and bio sleeve, Raman flow assembly,
Rxn-45 probe, Rxn-46 probe, Raman optic system for single use,
Memosens CPS61E, Memosens COS81E, OUSBT66, Memosens CPS61E,
Memosens CPS77E, Memosens CLS82E, OUSAF44, Memosens CPS11E,
Memosens CLS16E, TOC Analyzer CA79, Liquiline transmitter platform, and
Memobase software).
English version - 04/2024
Download
Fields of Activities (FA)
Sensors, transmitters, compact devices and assemblies Experts in Liquid Analysis
English version - 02/2026
Download
Fields of Activities (FA)
水質分析の専門知識 センサからすべてを備えた
ターンキーソリューションまで
Japanese version - 06/2025
Download
Fields of Activities (FA)
Kompetenz in der Flüssigkeitsanalyse Vom Sensor bis zur schlüsselfertigen Komplettlösung
German version - 09/2022
Download
Fields of Activities (FA)
Sıvı analizinde uzmanlık Sensörlerden komple anahtar teslim çözümlere
Turkish version - 11/2023
Download
Fields of Activities (FA)
Expertise in liquid analysis From sensors to complete turnkey solutions
English version - 09/2022
Download
Fields of Activities (FA)
Sensoren, Messumformer, Kompaktgeräte and Armaturen Kompetenz in der Flüssigkeitsanalyse
German version - 02/2026
Download
Fields of Activities (FA)
Sensori, trasmettitori, dispositivi compatti e armature Sensori, trasmettitori,
dispositivi compatti e armature
Esperti in materia di analisi dei
liquidi
Italian version - 06/2026
Download
Fields of Activities (FA)
Endress+Hauser 水質分析計ファミリ ラインナップと事例
Japanese version - 03/2017
Download
Competence Brochure (CP)
pH-Messung in Industrieprozessen Auswahl- und Engineering-Hilfe für verschiedene Industriebranchen und
Applikationen
German version - 12/2021
Download
Competence Brochure (CP)
pH 測定セレクションガイド 産業プロセスにおけるpH測定
Japanese version - 06/2026
Download
Competence Brochure (CP)
pH measurement in industrial processes Selection and engineering guide for different industries and
applications
English version - 12/2021
Download

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further parts
further parts

Kit CPSxx protective caps

further parts
further parts
Order code 71538217

Memoclip label Memosens sensor

Order code 71038228

Memoclip label memosens cable

Order code 71038229

KCL-Electrolyte solution CPY4

Order code CPY4-
Spare parts & accessories
Memosens CPS77E - ISFET pH sensor for food & beverage and life sciences industries
Memosens CPS77E non-glass pH sensor

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Spare parts and accessories

further parts
further parts

Kit CPSxx protective caps

further parts
further parts
Order code 71538217

Memoclip label Memosens sensor

Order code 71038228

Memoclip label memosens cable

Order code 71038229

KCL-Electrolyte solution CPY4

Order code CPY4-
Spare parts & accessories