E+H Memosens CPF82E Digital ORP Sensor

Advanced Digital ORP Monitoring with Endress+Hauser Memosens CPF82E

The Endress+Hauser Memosens CPF82E is an all-in-one digital ORP electrode engineered specifically for demanding industrial water treatment, mineral processing, and heavy chemical effluent monitoring. Operating in process media characterized by high flow rates, elevated suspended solids, and chemical contaminants, the CPF82E provides a robust, highly reliable solution for continuous redox potential evaluation in modern automated industrial plants.

Rugged All-In-One Body & Clog-Resistant Flat Membrane Design

Unlike delicate glass lab sensors, the Memosens CPF82E features a rugged compact body crafted with integrated NPT 3/4″ male threads on both the top and process ends. This versatile design allows direct inline installation into process piping or top-down immersion into open basins, tanks, and sumps. To tackle heavy slurries and fouling media, the sensor offers a choice of an extended dome bulb or a completely flat membrane surface. The flat membrane leverages fluid velocity across the sensor face to continuously sweep away debris and abrasive particles, preventing cake buildup and reducing sensor cleaning frequency.

Memosens 2.0 Digital Technology & Contactless Data Transmission

Equipped with cutting-edge Memosens 2.0 technology, the CPF82E converts analog oxidation-reduction potential signals into a digital protocol directly inside the sensor head. Inductive, non-contact signal transmission eliminates corrosion and moisture interference commonly caused by humidity, steam, or washdowns in industrial process environments. The sensor stores calibration history, operating hours, and process load data internally, enabling offline lab calibration and true plug-and-play field replacement without recalibration on the plant floor.

Poison-Resistant Reference System & Integrated Temperature Sensor

In industrial wastewater and mining circuits, reference electrode poisoning from sulfides, cyanides, or heavy metals is a primary cause of sensor drift. The CPF82E combats this through a double-chamber reference system containing a gel electrolyte and an internal ion trap, shielding the reference element from chemical degradation. Additionally, an integrated Pt100 temperature sensor provides real-time temperature tracking for simultaneous process monitoring and signal compensation in connected transmitters.

Key Performance Features & Technical Advantages

• Direct NPT Threaded Body: Threaded NPT 3/4″ design allows easy inline pipe or tank immersion mounting.

• Self-Cleaning Flat Glass: Smooth membrane face utilizes process flow to prevent solids and slurry buildup.

• Memosens 2.0 Digital Transmission: Inductive digital signal is completely immune to moisture, corrosion, and cable noise.

• Poison-Resistant Double Chamber: Ion trap protects the gel reference from sulfide and heavy metal contamination.

• Integrated Pt100 Sensor: Provides fast, accurate process temperature data alongside redox measurement.

• IIoT Predictive Maintenance: Stores calibration data and sensor health analytics for advanced asset management.

Applications 

• Industrial Wastewater & Effluent Control: Detoxification of electroplating baths, cyanide destruction, chromate reduction, and neutralization basins.

• Mining & Mineral Processing: Flotation processes, leaching circuits, tailings treatment, and ore slurry monitoring.

• Power Generation & Utilities: Flue gas desulfurization (FGD) scrubbers, cooling tower water monitoring, and intake water treatment.

• Pulp, Paper & Primary Metals: Process water conditioning, bleaching circuits, and heavy industrial washdown sumps.

Technical Specifications

Parameter / Feature	Specification Details
Measuring Principle	Digital ORP (Oxidation-Reduction Potential / Redox) sensor
Sensor Technology	Memosens 2.0 digital technology (Contactless inductive connection)
Measuring Range	-1500 mV to +1500 mV
Measuring Element	High-purity Platinum ring electrode
Temperature Sensor	Integrated Pt100 resistance element
Membrane Options	Flat glass membrane (self-cleaning) or heavy-duty dome bulb
Diaphragm Type	Large annular porous PTFE diaphragm
Reference System	Double-chamber gel reference with ion trap (poison-resistant)
Process Temperature	0 °C to +80 °C (32 °F to +176 °F)
Process Pressure (Abs.)	Up to 10 bar (145 psi) at 20 °C
Process Connections	Integrated NPT 3/4″ top and bottom threads
Wetted Materials	PPS (Polyphenylene sulfide), Glass, Platinum, PTFE, EPDM / Viton
Ingress Protection	IP68 (NEMA 6) – Submersible

FAQ 

Q1: What installation options does the Memosens CPF82E support?

Answer: The CPF82E features integrated NPT 3/4″ threads at both ends, allowing direct screw-in inline pipe mounting, bypass flow assembly insertion, or top-down immersion into open tanks and basins.

Q2: How does Memosens 2.0 digital technology benefit industrial operations?

Answer: Memosens 2.0 provides contactless inductive signal transmission that is completely immune to moisture and corrosion, while storing calibration data inside the sensor for fast, offline lab calibration.

Q3: How does the flat membrane option benefit high-solids applications?

Answer: The flat glass membrane surface allows process fluid velocity to sweep across the sensor face, naturally removing particles and preventing solid cake buildup in slurries or wastewater.

Q4: What protects the CPF82E from chemical reference poisoning?

Answer: It utilizes a double-chamber reference system with a gel electrolyte and an integrated ion trap that blocks hostile ions (like silver-poisoning sulfides) from reaching the reference element.

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