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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Operating Instruction (BA)
pH/ORP sensors and reference half cells
English version - 05/2020
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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Technical Information (TI)
Memosens CPS31D and Ceratex CPS31
English version - 03/2022
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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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
areasEN 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)
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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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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Competence Brochure (CP)
Aus Freude an gutem Wasser
Frische Ideen für Wasserwerke, Verteilernetze, Oberflächenwasser und
IndustrieanlagenLanguage:
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)
A turnkey solution for free chlorine measurement
A turnkey solution for free chlorine measurement
Complete EPA compliant
reagent-less free chlorine measurement systemLanguage:
English
Version:
02/05/2024
File size:
4.5 MB
File name:
CP01262C24EN0224-TurnkeySolutionDisinfectionMeasmnt_0524.pdf
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Competence Brochure (CP)
For the love of quality water
Fresh ideas for waterworks, distribution networks, surface waters and
industrial plants.Language:
English
Version:
14/07/2023
File size:
2 MB
File name:
CP01335CEN_0223_Competence in water_LoRes.pdf
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Case Study (CS)
Une mesure de chlore libre pour le suivi de la désinfection de l’eau
Le Syndicat des Eaux de Basse-Vigneulles et Faulquemont fait confiance
aux platines
d’analyse d’Endress+HauserLanguage:
French
Version:
17/06/2021
File size:
358.2 KB
File name:
CS01658X-SEBVF-BD.pdf
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Case Study (CS)
Free chlorine measurement for monitoring water disinfection
Trusted analysis panels for drinking water
Language:
English
Version:
17/06/2021
File size:
500.8 KB
File name:
CS01658_Free chlorine measurement for monitoring water disinfection.pdf
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Case Study (CS)
Messung des freien Chlors zur Überwachung der Wasserdesinfektion
Bewährte Analysepanels für Trinkwasser
Language:
German
Version:
17/06/2021
File size:
698.3 KB
File name:
CS01658_Messung des freien Chlors zur Ueberwachung der Trinkwasserdesinfektion.pdf
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White paper (WP)
Damit bei der pH-Messung höchste Genauigkeit garantiert ist
Kalibrierung,Justierung und Verifizierung
Language:
German
Version:
07/04/2021
File size:
605.2 KB
File name:
WP01154C07DE_01.21_Damit bei der pH-Messung hoechste Genauigkeit garantiert ist.pdf
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White paper (WP)
Ensuring maximum accuracy in pH measurement
Calibration, adjustment and verification
Language:
English
Version:
07/04/2021
File size:
600 KB
File name:
WP01154C07EN_01.21_Ensuring maximum accuracy in pH measurement.pdf
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Manufacturer Declaration
Product family: CeraGel, CeraLiquid, Memosens, OrbiPore, OrbiSint
Product root: CPS11-, CPS11D-, CPS12D-, CPS31D-, CPS41-, CPS41D-,
CPS71D-, CPS72D-, CPS91D-
Declaration number: HE_01182_01.19
Manufacturer specification: RoHSLanguage:
Chinese
Version:
18/09/2019
File size:
425.1 KB
File name:
HE_01182_01.19.pdf
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Manufacturer Declaration
Product family: Memosens, OrbiPore, OrbiSint
Product root: CPF81E-, CPF82E-, CPS11D-, CPS11E-, CPS12D-, CPS12E-, CPS16E-, CPS31D-, CPS31E-, CPS41E-, CPS42E-, CPS47E-, CPS61E-, C
PS71E-, CPS72E-, CPS76E-, CPS77E-, CPS91D-, CPS91E-, CPS92D-, CPS92E-, CPS96E-, CPS97E-
Declaration number: HE_01379_03.23
Manufacturer specification: PED
Additional information: CRNEN 10/05/2023Language:
English
Version:
10/05/2023
File size:
306.9 KB
File name:
CPSxxE_CRN_HE_01379_03.23.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, InduMax H, InduMax P, Liquiline, Memosens, Messkabel, Orbi Pac, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS54D-, CLS82D-,
CML18-, COS21D-, COS22D-, COS51D-, COS81D-, CPF82D-, CPL51E-
,
CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-,
CPS42D-, CPS441D-, CPS471D-, CPS47D-, CPS491D-, CPS71D-,
CPS72D-,
CPS77D-, CPS91D-, CPS92D-, CPS96D-, CPS97D-, CYK10-, CYK20-
Declaration number: EC_00828_02.20EN 14/02/2022Language:
English
Version:
14/02/2022
File size:
281.9 KB
File name:
EC_00828_03.22_D-Sensoren CML18 EMV_RoHS.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Ceramax, Memocheck, Memosens, MESSKABEL, ORBIPORE, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-,
CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS7
1D-,
CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-,
CYP02D-, CYP03D-
Declaration number: E
C_00105_02.15EN 06/01/2023Language:
English
Version:
06/01/2023
File size:
280.5 KB
File name:
EC_00105_03.23_CPSxxD_nonEx.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, Memocheck, Memosens, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-,
CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP0
2D-
Region: International (IECEx)
Approval agency: DEKRA EXAM
Protection: Ex i Zone 0Language:
English
Version:
01/07/2011
File size:
451.2 KB
File name:
Memosens IECEx_BVS_11.0052X_CoC_N10.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, Messkabel, OrbiPore, OrbiSint
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-,
CYK10-, CYK20-
Region: China
Approval agency: NEPSI
Protection: Ex i Zone 0Language:
Chinese
Version:
09/08/2019
File size:
2.5 MB
File name:
CPSxxD Ex ic GYJ19.1158X valid until 5-May-24.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, Messkabel, OrbiPore, OrbiSint
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-,
CYK10-, CYK20-
Region: China
Approval agency: NEPSI
Protection: Ex i Zone 0Language:
Chinese
Version:
09/08/2019
File size:
2.6 MB
File name:
CPSxxD Ex ia GYJ19.1156X valild untl 05-May-24.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, Memocheck, Memosens, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-,
CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-
Region: Great Britain
Approval agency: CML
Protection: Ex i Zone 0Language:
English
Version:
20/09/2021
File size:
223.5 KB
File name:
CML 21UKEX2902X.pdf
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Pressure Equipment
Product family: CeraGel, CeraLiquid, Memosens, OrbiPore, OrbiSint
Product root: CPF81E-, CPF82E-, CPS11D-, CPS11E-, CPS12D-, CPS12E-, CPS16D-, CPS16E-, CPS31D-, CPS31E-, CPS41D-, CPS41E-, CPS42D-, C
PS42E-, CPS47E-, CPS61E-, CPS62E-, CPS71D-, CPS71E-, CPS72D-, CPS72E-, CPS76D-, CPS76E-, CPS77E-, CPS91D-, CPS91E-, CPS92D-, CPS92E-
, CPS96D-, CPS96E-, CPS97E-
Region: Canada (CRN)
Approval agency: CRNLanguage:
English
Version:
15/02/2023
File size:
13.5 MB
File name:
0F15714.5R3 - Complette.pdf
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