Automated pH and ORP Measurement Maintenance
The Liquiline Control CDC90 is designed for process applications where pH or ORP sensors require frequent cleaning and calibration. Instead of relying on regular manual intervention, the system automates these routine tasks and helps keep the measuring point ready for operation.
It is designed around Memosens pH and ORP measuring points and can automatically clean, calibrate and adjust up to two sensors.
Designed for Difficult Measuring Points
The CDC90 is particularly useful when sensors are difficult to reach, located in potentially harmful environments, or need to be checked and maintained frequently. Automating these tasks can reduce the amount of routine work carried out directly at the measuring point.
Complete System for Cleaning and Calibration
Rather than being just a controller, the CDC90 is a complete cleaning and calibration solution. The system includes the control unit together with pneumatic and media-handling components for cleaning and calibration operations. Its design allows connection to suitable retractable assemblies and Memosens sensors.
Easy Operation and Integration
The CDC90 can be configured and operated through its touchscreen and web server. It can also be integrated into existing plant infrastructure and connected to process control systems. Supported communication options include 0/4–20 mA, PROFIBUS DP, Modbus TCP, EtherNet/IP and PROFINET, depending on the selected configuration.
Key Features
Automatic cleaning and calibration of Memosens pH and ORP sensors
Supports up to two measuring points
Customizable cleaning and calibration cycles
Automatic sensor adjustment after calibration
Touchscreen and web server operation
Integrated dosing and media distribution
Helps reduce manual maintenance at difficult-to-access measuring points
Suitable for demanding and potentially harmful process environments
Supports integration with existing process control systems
Communication options include 4–20 mA, PROFIBUS DP, Modbus TCP, EtherNet/IP and PROFINET
Complete system with control, pneumatic and media-handling components
Typical Applications
Water & Wastewater Treatment
For pH monitoring points that require frequent cleaning and calibration during water and wastewater treatment processes.
Chemical Processing
Useful where pH measurements are important to process control and sensors may require regular maintenance.
Food & Beverage
Suitable for processes where reliable pH monitoring and repeatable sensor maintenance are required.
Mining & Minerals
Can help automate pH measuring points in demanding process environments and reduce routine maintenance work.
Power & Energy
Suitable for process water and other applications where pH measurement needs to remain stable and regularly controlled.
Life Sciences
Can be applied to process measurement points where reproducible pH measurement and documented measuring-point performance are important.
These application areas are consistent with Endress+Hauser's listed industries for the CDC90, including food & beverage, water and wastewater, chemical, life sciences, power & energy, mining and utilities.
FAQ
What is the Endress+Hauser Liquiline Control CDC90?
The CDC90 is an automated cleaning and calibration system for Memosens pH and ORP measuring points. It is designed to automate routine sensor maintenance rather than function as a standalone pH sensor.
How many sensors can the CDC90 handle?
The system can automatically clean, calibrate and adjust up to two sensors.
What type of sensors does the CDC90 work with?
The CDC90 is designed for Memosens pH and ORP sensors installed in suitable retractable assemblies.
Can the CDC90 be connected to a plant control system?
Yes. The system can be integrated into existing plant infrastructure and connected to process control systems. Depending on the configuration, communication options include 4–20 mA, PROFIBUS DP, Modbus TCP, EtherNet/IP and PROFINET.
When is an automatic cleaning and calibration system useful?
The CDC90 is particularly suitable when sensors require frequent cleaning or calibration, when the measuring point is difficult to access, when the environment is potentially harmful, or when reproducible pH measurement and frequent performance checks are required.
Does the CDC90 include the cleaning and calibration equipment?
Yes. The CDC90 is supplied as a complete system concept including the control unit, pneumatic control components and media-handling components such as pumps and canisters, depending on configuration.
