Smart Connectivity and Enhanced Safety with Memosens 2.0

The Liquisys CPM253 represents a significant advancement in pH/Redox measurement technology, featuring full compatibility with Memosens 2.0 digital sensor technology. This innovative system enables plug-and-play functionality between sensors and transmitters while delivering unprecedented data reliability. The digital signal transmission eliminates interference issues common with analog systems, ensuring measurement stability even in demanding industrial environments.

Memosens 2.0 incorporates digital data storage capabilities within the sensor itself, facilitating process traceability and diagnostic functions. The technology significantly enhances operational safety through continuous sensor monitoring and automatic recognition of pre-calibrated sensors, streamlining installation and maintenance procedures.

Comprehensive Monitoring and Process Safety

Engineered for rigorous industrial applications, the Liquisys CPM253 provides precise measurement of both pH values and oxidation-reduction potential (Redox). The system's integrated diagnostic capabilities continuously verify sensor and process integrity, detecting potential issues before they impact operations.

Advanced features include real-time monitoring of pH glass and reference electrode conditions, evaluation of calibration reliability, and configurable alarm settings. These proactive safety measures help prevent process interruptions and maintain product quality by enabling immediate response to measurement anomalies.

Modular Design for Flexible Configuration

Recognizing the diverse requirements of industrial measurement applications, the CPM253 employs a modular architecture that allows customization through various hardware and software options. Users can select additional relay outputs for complex control logic or integrate fieldbus communication interfaces (including HART and PROFIBUS DP/PA) to seamlessly connect with existing automation systems.

This adaptable design not only ensures optimal performance for specific measurement tasks but also provides future-proofing through straightforward module upgrades. The approach reduces long-term investment costs by eliminating the need for complete system replacements when requirements evolve.

Simplified Operation and Reduced Maintenance

The CPM253 prioritizes user experience with an intuitive interface and streamlined menu navigation that simplifies both configuration and daily operation. Even first-time users can quickly perform sensor calibration through an efficient two-point calibration process.

The system incorporates innovative automated cleaning functionality (compatible with Chemoclean technology) that can be triggered by alarm signals or limit switches. This feature extends sensor lifespan while reducing maintenance frequency and associated costs, allowing personnel to focus on core production activities.

Industry Applications and Technical Specifications

The Liquisys CPM253 is suitable for pH/Redox measurement in non-explosive environments across multiple industries:

• Chemical Processing: Precise control of reaction pH and redox conditions to ensure product quality and process stability
• Food & Beverage: Monitoring critical phases including fermentation and sterilization to maintain safety and flavor profiles
• Power Generation: Water quality monitoring for boiler feedwater and cooling systems to enhance efficiency and equipment protection
• Water/Wastewater Treatment: Optimization of chemical dosing processes to meet environmental standards
• Primary Metals Processing: Monitoring of plating, pickling, and other surface treatment processes

Key Technical Features:

• Continuous process and sensor verification with programmable alarms
• Reliable Memosens digital interface technology
• Comprehensive self-diagnostics for sensor health monitoring
• Simplified two-point calibration procedure
• Optional automated cleaning system integration

Communication Protocol Support:

• 0/4 ... 20 mA (with HART option)
• HART
• PROFIBUS DP
• PROFIBUS PA

Technical Specifications

• Measurement Principle: Potentiometric (pH/ORP/Redox)
• Housing Material: PC/ABS
• Protection Rating: IP67 (IEC/EN 60529 compliant)
• Operating Temperature: -20°C to +60°C
• Power Supply: 100-230 V AC or 24 V AC/DC (modular option)
• Certifications: CSA (General Purpose)