
Specs at a glance
-
Measurement range
Application B:
• pH: 0 to 14
Application H:
• pH: 0 to 12 -
Process temperature
1 to 140 °C (32 to 284 °F)
-
Process pressure
0,8 to 14 bar (11,6 to 203 psi) (absolute)
Field of application
Memosens CPS71E is specially designed for demanding processes. Its unique, contamination-resistant reference and its resistance to moisture ensure reliable measurement even in heavily polluted, aggressive media such as strong acids and bases. Thanks to Memosens 2.0 digital technology, CPS71E offers extended storage of calibration and process data providing the perfect basis for predictive maintenance. Pre-calibration in the lab and quick sensor exchange on site maximize process uptime.
Processes in chemical industry and monitoring of processes with:
High proportion of electrode poisons such as H2S
Quickly changing pH values
With ATEX, IECEx, CSA C/US, NEPSI, Japan, INMETRO approvals for use in hazardous areas, zones 0, 1 and 2.
Benefits
-
The electrode's unique ion trap prevents poisoning of the junction and reference, making it resistant to strong acids and bases and ensuring a long sensor lifetime.
-
The optional pressurized reference allows for reliable measurement in blocking media such as dispersions.
Flexible installation thanks to optional upside-down mounting
-
Inductive cable connection and non-contact signal transmission eliminate any problems due to moisture or corrosion and increase process integrity.
Fast sensor exchange on site reduces process downtime and operating costs.
Memosens 2.0 digital technology makes trend identification and predictive maintenance possible thanks to its extended storage of calibration and process data. The technology paves the way for advanced IIoT services.
Videos
Extended selection
-
High-end products
- Highly functional and convenient
Technical excellence
Simplicity

-
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 |
Predecessor
-
-
Technical Information (TI)
Memosens CPS71E
German version - 03/2021
pH-Sensor für chemische Prozessanwendungen
EN 19/03/2021Language:
German
Version:
19/03/2021
File size:
872.3 KB
File name:
TI01496CDE_0221.pdf
-
-
-
Operating Instruction (BA)
pH-Sensoren CPSx1E, CPFx1E Redox-Sensoren CPSx2E, CPFx2E
German version - 10/2021
pH- und Redox-Messung
EN 14/10/202131/03/202109/07/202019/05/2020Language:
German
Version:
14/10/2021
File size:
1 MB
File name:
BA01988CDE_0421.pdf
-
-
-
Technical Information (TI)
Memosens CPS71E
pH sensor for chemical process applications
EN 19/03/2021Language:
English
Version:
19/03/2021
File size:
868.7 KB
File name:
TI01496CEN_0221.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 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 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 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
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
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 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
-