
Specs at a glance
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Measurement range
pH 1 to 12
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Process temperature
0 to 80 °C
(32 to 176 °F) -
Process pressure
1 to 4 bar
(15 to 60 psi)
Field of application
Memosens CPS31D is the digital expert for pH compensation in disinfection processes. Its three diaphragms make it suitable for minimum conductivity while its low drift guarantees stable measurement. The sensor makes sure that swimming pool water is agreeable and drinking water tasteful. Memosens CPS31D is not the latest Memosens generation. To get information on the new Memosens CPS31E sensor with extended functionality, click here.
Drinking water
Swimming pool water
pH compensation for free chlorine measurement
Benefits
Reliable measurement at minimum conductivity thanks to three diaphragms
Low drift by very low level of ion depletion in electrolyte
Optional salt ring for extended operating time
Maximum process safety through non-contact inductive signal transmission
Enables predictive maintenance due to storage of sensor and process-specific data
Reduced operating costs due to minimized process downtime and extended sensor lifetime
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
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Fundamental selection Meet your basic measurement needs |
Technical excellence
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Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
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Technical Information (TI)
Memosens CPS31D and Ceratex CPS31
pH sensors for drinking water and swimming pool water
EN 16/03/202219/04/201301/01/2001Language:
English
Version:
16/03/2022
File size:
863 KB
File name:
TI00030CEN_1422-00.pdf
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Operating Instruction (BA)
pH/ORP sensors and reference half cells
Sensors with Memosens technology and analog sensors
EN 04/05/202031/12/201730/11/2015Language:
English
Version:
04/05/2020
File size:
1.1 MB
File name:
BA01572CEN_0320.pdf
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Ex Safety Instruction (XA)
Memosens pH/ORP Sicherheitshinweise für elektrische Betriebsmittel im explosionsgefährdeten Bereich Safetyinstructions for electrical apparatus for explosion-hazardous areas Conseils de sécurité pour matériels électriques destinés aux zones explosibles Safety Instructions
Safety instructions for electrical apparatus for explosion-hazardous areas
EN 22/02/201604/03/201514/01/201321/10/201001/12/2006Language:
English
Version:
22/02/2016
File size:
4.3 MB
File name:
XA00376CA3_1616.pdf
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Fields of Activities (FA)
Esperti nell’analisi dei liquidi
Dai sensori singoli a soluzioni complete “chiavi in mano”
Language:
Italian
Version:
12/01/2017
File size:
3.9 MB
File name:
FA01018CIT_02.16.pdf
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Fields of Activities (FA)
Catálogo Portfolio Analítica
Desde sensores hasta soluciones completas
Language:
Spanish
Version:
12/01/2017
File size:
1.5 MB
File name:
FA01018CES_Portfolio_Analitica_0216.pdf
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Fields of Activities (FA)
Jistota v analýze kapalin
Od senzorů po kompletní dodávku na klíč
Language:
Czech
Version:
12/01/2017
File size:
740.3 KB
File name:
Analyza_FA01018Ccs_0216.pdf
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Competence Brochure (CP)
Aus Freude an gutem Wasser
Frische Ideen für Wasserwerke, Verteilernetze, Oberflächenwasser und Industrieanlagen
Language:
German
Version:
14/07/2023
File size:
2.1 MB
File name:
CP01335CDE_0223_Kompetenz in Wasser.pdf
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Competence Brochure (CP)
pH-Messung in Industrieprozessen
Auswahl- und Engineering-Hilfe für verschiedene Industriebranchen und Applikationen
Language:
German
Version:
25/03/2020
File size:
3.3 MB
File name:
CP00010CDE_1520_pH-Auswahlhilfe20.pdf
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Competence Brochure (CP)
A turnkey solution for free chlorine measurement
A turnkey solution for free chlorine measurement Complete EPA compliant reagent-less free chlorine measurement system
Language:
English
Version:
05/01/2017
File size:
1.4 MB
File name:
CP01262C24EN0117-A turnkey solution for free chlorine measurement_FV4.pdf
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Competence Brochure (CP)
pH measurement in industrial processes
Selection and engineering guide for different industries and applications
Language:
English
Version:
24/02/2020
File size:
3.3 MB
File name:
CP00010CEN_1520_pH-selection-guide20.pdf
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