
Specs at a glance
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Measurement range
pH 0 to 14
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Process temperature
Version LH: 0 to 110 °C (32 to 230 °F)
Version NN: 0 to 80 °C (32 to 170 °F) -
Process pressure
1 to 10 bar abs at 80 °C
(15 to 145 psi at 176 °F)
Field of application
Orbipac CPF81D is the digital, simple solution for harsh environments. It measures reliably and accurately even in fibrous media and at high flow rates. With its integrated assembly, the electrode saves space and time during flow or immersion installation. Orbipac CPF81D is not the latest Memosens generation. To get information on the new Memosens CPF81E sensor with extended functionality, click here.
Orbipac CPF81D is the robust pH sensor for processes in mining industries and treatment of industrial water and wastewater. It monitors:
Flotation
Leaching
Neutralization
Inlet and outlet
Benefits
Suitable for flow and immersion installation
Long time stable: Second electrolyte bridge for better protection against electrode poisoning ions such as S2- or CN-
Robust polymer housing protects against mechanical damage
Optional flat membrane suitable for high flow rates and fibrous media
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)
Orbipac CPF81D/CPF82D and CPF81/CPF82
English version - 07/2020
pH/ORP sensors, with digital Memosens technology or analog For mining operations, industrial water and wastewater treatment
EN 15/07/202004/06/202030/11/201401/01/2001Language:
English
Version:
15/07/2020
File size:
499.2 KB
File name:
TI00191CEN_1520.pdf
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Technical Information (TI)
Orbipac CPF81D/CPF82D and CPF81/CPF82
pH/ORP sensors, with digital Memosens technology or analog For mining operations, industrial water and wastewater treatment
EN 15/07/202004/06/202030/11/201401/01/2001Language:
English
Version:
15/07/2020
File size:
499.2 KB
File name:
TI00191CEN_1520.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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Special Documentation (SD)
Special Documentation Liquiline CM14 pH kit 3
For pH measurement in wastewater
EN 16/07/2012Language:
English
Version:
16/07/2012
File size:
343.1 KB
File name:
SD167_CM14_A5_71154948.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)
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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Case Study (CS)
Monitoring water quality in fish farms
Digitalizing fish farming in the Petite Camargue Alsacienne
Language:
English
Version:
24/09/2021
File size:
699.3 KB
File name:
CS01722X_Monitoring water quality in fish farms.pdf
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Case Study (CS)
L’automatisation des process vaut son pesant d’or
Memosens Les sondes de pH améliorent les process chez Agnico Eagle
Language:
French
Version:
01/07/2016
File size:
673.1 KB
File name:
CS01496CFR-0216-Agnico Eagle.pdf
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Case Study (CS)
Überwachung der Wasserqualität in Fischzuchtbecken
Digitalisierung der Fischzucht in der Petite Camargue Alsacienne
Language:
German
Version:
24/09/2021
File size:
706.6 KB
File name:
CS01722X_Ueberwachung der Wasserqualitaet in Fischbecken.pdf
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Case Study (CS)
Process automation worth its weight in gold
Memosens pH sensors improve processes at Agnico Eagle
Language:
English
Version:
01/07/2016
File size:
1.5 MB
File name:
CS01496CEN_0116_Agnico Eagle goldmine.pdf
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Case Study (CS)
Prozessautomatisierung, die Gold wert ist
Memosens pH-Sensoren verbessernProzesse bei Agnico Eagle
Language:
German
Version:
01/07/2016
File size:
1.5 MB
File name:
CS01496CDE_0116_Agnico Eagle Goldmine.pdf
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