Endress+Hauser CPF81E Digital pH Sensor with IP68 Rating Robust PPS Housing and Dual-Chamber Reference System

​Product Overview​

The Endress+Hauser CPF81E is a ​digital pH sensor​ designed for demanding industrial environments such as mining, wastewater treatment, and chemical processes. It incorporates ​Memosens 2.0 digital technology, enabling contactless signal transmission, laboratory pre-calibration, and embedded data storage for predictive maintenance. With a robust PPS housing, dual-chamber reference system, and IP68 rating, the CPF81E ensures long-term stability in corrosive, high-flow, or particle-laden media while minimizing operational downtime .

​Technical Specifications​

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Key Features​

1. ​Digital Reliability with Memosens 2.0: The sensor uses inductive signal transmission to eliminate moisture corrosion and cable faults. It stores calibration data and process parameters directly in the electrode, enabling plug-and-play replacement and trend analysis for predictive maintenance .

2. ​Robust Design for Harsh Conditions: The PPS housing and PTFE planar diaphragm resist abrasion, chemical exposure, and high-flow media (e.g., mining slurries or fibrous wastewater). The dual-chamber reference system reduces ion poisoning (e.g., from S²⁻ or CN⁻) .

3. ​Pre-Maintenance Capabilities: Historical data tracking allows users to monitor sensor health and plan maintenance proactively. Laboratory calibration ensures accuracy before field deployment, cutting downtime by up to 50% .

4. ​Easy Integration and Installation: The compact design includes a built-in mounting bracket for immersion or flow-through setups. Compatibility with Endress+Hauser transmitters (e.g., Liquiline series) simplifies integration into automated systems .

5. ​Explosion-Proof Safety: Optional ATEX/FM certifications enable use in hazardous areas, such as chemical plants or mining facilities, without external isolators .

​Application Scenarios​

• ​Mining and Metallurgy: Monitors pH in flotation, leaching, and neutralization processes, withstanding abrasive slurries and corrosive ions .

• ​Wastewater Treatment: Treated water inlet/outlet pH control in municipal or industrial plants, resistant to clogging from fibers or solids .

• ​Chemical and Process Industries: Suitable for high-pH or acidic media in chemical reactors, pipelines, and effluent streams, ensuring precise measurement under variable temperatures and pressures .

• ​Water Management: Continuous monitoring in drinking water systems or surface water bodies, with IP68 rating for submerged installations .

Note: Specifications are based on manufacturer documentation and industry sources. Verify parameters against the latest technical guides for specific applications .

About Achievers Automation Limited

Achievers Automation Limited is a well-established player in the field of industrial automation with over 12 years of experience. The company provides a comprehensive range of industrial automation components and instruments to customers in over 45 countries worldwide.