Specs at a glance
-
Measurement range
1 to 14 pH
-
Process temperature
0 to 110 °C (32 to 230 °F)
-
Process pressure
0.8 to 14 bar (11.6 to 203 psi) absolute
Field of application
Memosens CPS91E is equipped with Memosens 2.0 digital technology, offering enhanced data storage for predictive maintenance and IIoT. The sensor features an open aperture that prevents fouling and ensures the most reliable measurement in fibrous media or media with a high content of suspended solids such as dispersions, precipitations or emulsions. Memosens CPS91E is completely resistant to moisture and can be pre-calibrated in the lab which facilitates operation and improves process integrity.
Chemical processes
Pulp and paper industry
Contaminated media and suspended solids
- Dispersions
- Precipitations
- Emulsions
With ATEX, IECEx, CSA C/US, NEPSI, Japan, INMETRO approvals for use in hazardous areas, zones 0, 1 and 2.
Benefits
Reliable measurement in heavily soiled media: Open aperture cannot be blocked by fibres or suspended solids.
-
Not affected by fluctuations in pressure and temperature: Thanks to open aperture no diffusion potential can build up at the junction.
-
Stabilized gel filling allows for low maintenance and a long sensor lifetime.
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.
Non-contact, inductive signal transmission eliminates disturbances caused by moisture or corrosion, ensuring highest process safety.
-
Lab calibration and quick sensor exchange in the process maximize process uptime and reduce operating costs.
Videos
Get this product as part of a bundle
-
Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
-
Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Extended selection
-
High-end products
- Highly functional and convenient
Technical excellence
Simplicity
Loading alternative products
Predecessor
Success stories
Could also interest you
34 documents
-
-
Technical Information (TI)
Memosens CPS91E
pH sensor for heavily polluted media
EN 13/10/2020Language:
English
Version:
13/10/2020
File size:
832 KB
File name:
TI01497CEN_0120.pdf
-
-
-
Operating Instruction (BA)
pH sensors CPSx1E, CPFx1E ORP sensors CPSx2E, CPFx2E
pH and ORP measurement
EN 14/10/202131/03/202109/07/202019/05/2020Language:
English
Version:
14/10/2021
File size:
1 MB
File name:
BA01988CEN_0421.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Supplement to BA01988C, BA02142C Safety instructions for electrical apparatus in explosion-hazardous areas EAC Ex 0Ex ia IIC T3/T4/T6 Ga X EAC Ex 0Ex ia IIC T4/T6 Ga X
EN 26/01/2022Language:
English
Version:
26/01/2022
File size:
424.3 KB
File name:
XA02817CEN_0122-00.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Supplement to BA01988C, BA02142C Safety instructions for electrical apparatus in explosion-hazardous areas UK Ex II 1 G Ex ia IIC T3/T4/T6 Ga UK Ex II 1GEx ia IIC T4/T6 Ga
Language:
English
Version:
26/11/2021
File size:
684.7 KB
File name:
XA02588CEN_0221-00.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Safety instructions for electrical apparatus in explosion-hazardous areas
EN 23/04/202118/02/202103/07/2020Language:
English
Version:
23/04/2021
File size:
893.2 KB
File name:
XA01991CEN_0321.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Supplement to: BA01988C, BA02142C Safety instructions for electrical apparatus in explosion-hazardous areas NEPSI Ex ia IIC T3/T4/T6 Ga NEPSI Ex ia IIC T4/T6 Ga
EN 07/09/202105/08/2020Language:
English
Version:
07/09/2021
File size:
529.3 KB
File name:
XA02113CEN_0221.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
CSA C/US IS Cl. I Div. 1 GP A-D T3/T4/T6 + CSA C/US IS Cl. I Zone 0 AEx ia IIC T3/T4/T6 CSA C/US IS Cl. I Div. 1 GP A-D T4/T6 + CSA C/US IS Cl. I Zone 0 AEx ia IIC T4/T6 CSA C/ US Cl. 1 Div 1&2 GP A-D T6…T3 Safety Instructions
EN 01/12/202215/02/202220/08/2020Language:
English
Version:
01/12/2022
File size:
860.7 KB
File name:
XA02235CEN_0422-00.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Safety instructions for electrical apparatus in explosion-hazardous areas
EN 22/04/202131/07/2020Language:
English
Version:
22/04/2021
File size:
505.2 KB
File name:
XA02082CEN_0221.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Supplement to BA01988C, BA02142C Safety instructions for electrical apparatus in explosion-hazardous areas KOR Ex ia IIC T3/T4/T6 Ga KOR Ex ia IIC T4/T6 Ga
EN 22/10/2021Language:
English
Version:
22/10/2021
File size:
425.6 KB
File name:
XA02739CEN_0121.pdf
-
-
-
Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Safety instructions for electrical apparatus in explosion-hazardous areas
EN 22/04/202115/10/2020Language:
English
Version:
22/04/2021
File size:
491.8 KB
File name:
XA02244CEN_0221.pdf
-
-
-
Fields of Activities (FA)
Expertise in liquid analysis
From sensors to complete turnkey solutions
EN 21/09/2022Language:
English
Version:
21/09/2022
File size:
1.2 MB
File name:
FA01018CEN_0422_Analysis_Portfolio_lowres.pdf
-
-
-
Competence Brochure (CP)
pH measurement in industrial processes
Selection and engineering guide for different industries and applications
Language:
English
Version:
02/12/2021
File size:
3.2 MB
File name:
CP00010CEN_1621_pH selection guide_2021.pdf
-
-
-
Competence Brochure (CP)
pH-Messung in Industrieprozessen
Auswahl- und Engineering-Hilfe für verschiedene Industriebranchen und Applikationen
Language:
German
Version:
01/12/2021
File size:
3.3 MB
File name:
CP00010CDE_1621_pH Auswahlhilfe_2021.pdf
-
-
-
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
-
-
-
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
-
-
-
Manufacturer Declaration
Product family: Memosens, OrbiPore, OrbiSint
Product root: CPS11D-, CPS11E-, CPS12D-, CPS12E-, CPS41E-, CPS61E-, CPS71E-, CPS91D-, CPS91E-, CPS92D- {ZMMM_DECLARATI ON_NUMBER}: HE_01379_01.20 Additional information: CRN
EN 03/03/2022Language:
English
Version:
03/03/2022
File size:
274.6 KB
File name:
CPSxxE_CRN_HE_01379_02.22.pdf
-
-
-
Manufacturer Declaration
Product family: Memosens
Product root: CPS11E-, CPS31E-, CPS41E-, CPS61E-, CPS71E-, CPS91E- Declaration number: HE_01504_01.21 Manufacturer specification: RoHS Additional information: China-RoHS
Language:
Chinese
Version:
20/10/2021
File size:
416.8 KB
File name:
HE_01504_01.21_CPSx1E_China-RoH_orange50.pdf
-
-
-
EU Declaration
Product family: Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS91E-, CPS92E-, CPS96E- Declaration number: EC_00831_03.20
EN 15/03/2021Language:
English
Version:
15/03/2021
File size:
236.8 KB
File name:
EC_00831_03.20 CPSxxE nonEx unterschrieben.pdf
-
-
-
EU Declaration
Product family: Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS91E-, CPS92E-, CPS96E- Declaration number: EC_00832_03.20
EN 15/03/2021Language:
English
Version:
15/03/2021
File size:
297.6 KB
File name:
EC_00832_03.20 CPSxxE Ex unterschrieben.pdf
-
-
-
UK Conformity Assessed
Product family: Memocheck, Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS91E-, CPS92E-,C PS96E- Declaration number: UK_00279_02.21
Language:
English
Version:
19/10/2021
File size:
285.1 KB
File name:
UK_00279_02.21_CPSxxE.pdf
-
-
-
UK Conformity Assessed
Product family: Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS91E-, CPS92E-, C PS96E- Declaration number: UK_00393_01.21
Language:
English
Version:
10/08/2021
File size:
279.5 KB
File name:
UK_00393_01.21 CPSxxE NonEx.pdf
-
-
-
Miscellaneous
Product family: Absorbance, Analog, Cell growth, CeraGel, CeraLiquid, Ceramax, CeraTex, ConduMax H, ConduMax W, InduMax H, InduMax P , Isemax, Memosens, OrbiPac, OrbiPore, OrbiSint, OrbiTex, OxyMax H, OxyMax W, PuriSys, Sensor, Spectrometer, TopHit, Turbidity and t otal suspended solids, Turbimax, UV, Viomax
Product root: CAS40D-, CAS51D-, CCS120-, CCS120D-, CCS50-, CCS50D-, CCS51-, CCS51D-, CCS55D-, CCS58D-, CFS51-, CKF50-, CKI50-, CLS12 -, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS19-, CLS21D-, CLS30-, CLS50-, CLS50D-, CLS54-, CLS54D-, CLS82D-, COS22-, COS22D-, CO S41-, COS51D-, COS61-, COS61D-, COS81D-, CUS50D-, CUS51D-, CUS52D-, CVF52-, CVI52-, OUSAF11-, OUSAF12-, OUSAF21-, OUSAF22-, OUSAF44- , OUSAF46-, OUSBT66-, OUSTF10- Region: Eurasian Economic Union Approval agency: EAC Approval number: EAEC N RU D-DE.PA05.B.03690_22
Language:
Russian
Version:
26/07/2022
File size:
338.6 KB
File name:
EAEC N RU D-DE.PA05.B.03690_22.pdf
-
-
-
Miscellaneous
Product family: CeraGel, CeraLiquid, Ceramax, CeraTex, Memosens, OrbiPore, OrbiSint, OrbiTex
Product root: CLS15E-, CLS16E-, CLS21E-, CLS82E-, COS22E-, COS51E-, COS81E-, CPF81E-, CPF82E-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS 12D-, CPS12E-, CPS16D-, CPS16E-, CPS171D-, CPS21-, CPS31-, CPS31D-, CPS31E-, CPS341D-, CPS41-, CPS41D-, CPS41E-, CPS42-, CPS42D-, CP S42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS72E-, CPS76D-, CPS76E-, CPS77D-, CPS77E-, C PS91-, CPS91D-, CPS91E-, CPS92-, CPS92D-, CPS92E-, CPS96D-, CPS96E-, CPS97D-, CPS97E- Region: Eurasian Economic Union Approval agency: NANIO Approval number: EAEC N RU D-DE.PA05.B.03690_22
Language:
Russian
Version:
26/07/2022
File size:
338.6 KB
File name:
EAEC N RU D-DE.PA05.B.03690_22.pdf
-
-
-
Explosion Protection
Product family: Memocheck, Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS77D-, CPS77E-, CPS91E-, CPS92E-, CPS96E-, CPS97D-, CPS97E-, CYP02E- Region: International (IECEx) Approval agency: DEKRA Protection: Ex ia IIC T6 Gb, Ex ia IIC T6...T3 Ga, Ex ia 020 055 005
Language:
English
Version:
08/02/2021
File size:
302.8 KB
File name:
IECEx_BVS_19.0056X_002.pdf
-
-
-
Explosion Protection
Product family: Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS47E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS77E-, C PS91E-,CPS92E-, CPS96E-, CPS97E- Region: South Korea Approval agency: KTL Protection: Ex i Zone 0
Language:
Korean
Version:
17/09/2021
File size:
685.4 KB
File name:
21-KA4BO-0621X(2021-051598-01)_KCs certificate.pdf
-
-
-
Explosion Protection
Product family: Memocheck, Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-,< bProduct root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-,< b r/>CPS76E-, CPS77D-, CPS77E-, CPS91E-, CPS92E-, CPS96E-, CPS97D-, CPS97E-, CYP02E- Region: Japan
Language:
Japanese
Version:
19/02/2023
File size:
417.3 KB
File name:
CML 19JPN2485X JP Issue 4.pdf
-
-
-
Explosion Protection
Product family: Memocheck, Memosens
Product root: CPS11E-, CPS12E-, CPS41E-, CPS47D-, CPS61E-, CPS71E-, CPS77D-, CPS91E-, CPS97D-, CYP02E- Region: 030 Approval agency: NEPSI Protection: Ex ia IIC T6 Gb, Ex ia IIC T6...T3 Ga, Ex ia 020 055 005
Language:
Chinese
Version:
28/12/2021
File size:
2.3 MB
File name:
GYJ19.1375X_S2_CPSxxE.pdf
-
-
-
Explosion Protection
Product family: Memocheck, Memosens
Product root: CLS15E-, CLS16E-, CLS21E-, CLS82E-, CPS11E-, CPS12E-, CPS31E-, CPS41E-, CPS42E-, CPS47D-, CPS47E-, CPS61E-, CPS71E-, CPS72E-, CPS77D-, CPS77E-, CPS91E-, CPS92E-, CPS97D-, CPS97E-, CYP02E- Region: Canada, USA {ZMMM_APPROVAL_A GENCY}: 150
Language:
English
Version:
10/02/2022
File size:
2 MB
File name:
CoFC_80086777_EN with Control_Drawing.pdf
-
-
-
Explosion Protection
Product family: CeraGel, CeraLiquid, ConduMax W, Memosens, OrbiPore, OrbiSint, TopHit
Product root: CLS15D-, CLS15E-, CLS16E-, CLS21E-, CLS82D-, CLS82E-, COS22E-, COS51E-, COS81E-, CPS11D-, CPS11E-, CPS12D-, CPS12E-, C PS16E-, CPS31E-, CPS41D-, CPS41E-, CPS42D-, CPS42E-, CPS441D-, CPS471D-, CPS47D-, CPS47E-, CPS491D-, CPS61E-, CPS62E-, CPS71D-, CPS7 1E-, CPS72D-, CPS72E-, CPS76E-, CPS77D-, CPS77E-, CPS91D-, CPS91E-, CPS92D-, CPS92E-, CPS96E-, CPS97D-, CPS97E- Region: Eurasian Economic Union Approval agency: NANIO Protection: Ex e Cl. III Zone 0, Ex e Zone 0, Ex e Zone 20
Language:
Russian
Version:
15/11/2021
File size:
5 MB
File name:
EAEC_RU_C-DE.AA87.B.0083321.pdf
-
-
-
Explosion Protection
Product family: Memocheck, Memosens
Product root: CPS11E-, CPS12E-, CPS16E-, CPS31E-, CPS41E-, CPS42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71E-, CPS72E-, CPS76E-, CPS77D-, CPS77E-, CPS91E-, CPS92E-, CPS96E-, CPS97D-, CPS97E-, CYP02E- Region: Europe (ATEX) Approval agency: DEKRA Protection: Ex ia IIC T6 Gb, Ex ia IIC T6...T3 Ga, Ex ia 020 055 005
EN 03/02/2021Language:
English
Version:
03/02/2021
File size:
10.1 MB
File name:
BVS_19_ATEX_E_062_X_N2_DE_EN.pdf
-
6 products & bundles
