Sensors, transmitters,compact devices and assemblies

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Experts in liquid analysis

Fully automated measurement, cleaning and calibration

Continuous maintenance of the sensor guarantees a high degree of accuracy and the highest level of availability of a pH measuring point. However, this causes a hike in operating and maintenance costs, particularly in applications with strict requirements, such as in the chemical, food and life sciences industries or with measuring points with aggressive process conditions. Endress+Hauser offers fully automatic measuring, cleaning and calibration systems for up to two Memosens pH sensors to keep these costs to a minimum. We conduct Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT) to make sure that the systems meet your requirements. Liquiline Control CDC90 Liquiline Control CDC90 offers high sensor availability and maximum reproducibility of calibrations, ensuring reliable measurement results and a long sensor lifetime, particularly in aggressive and highly contaminated media. Thanks to its web-based technology, Liquiline Control CDC90 supports remote access from anywhere at any time. Access is possible via process control systems or any mobile device such as tablets, smartphones or notebooks.

When do I use Liquiline Control CDC90? • The pH sensor must be cleaned and calibrated frequently. • The pH measuring point is difficult to access. • The process demands reproducible precise pH measurements. • Appropriate maintenance of the pH measuring points is difficult due to lack of resources. • The pH sensor must be calibrated frequently between batch processes or even during a batch process.

High product safety and product yield • Optimized cleaning and calibration cycles ensure reliable measured values. • Automated calibration and adjustment guarantee maximum reproducibility. Maximized occupational safety • Reduction in plant personnel visits to potentially dangerous sites. • Elimination of the need for manual cleaning and calibration. • The status of difficult-to-access measuring points can be checked and controlled remotely.

Reduced operating and maintenance costs • Process integration is easy and seamless thanks to a number of fieldbus protocols and interfaces. • Preset cleaning and calibration programs enable fast adaptation to the process. • Unnecessary maintenance checks are eliminated because Liquiline Control CDC90 actively reports potential errors to the process control system. • Even event-triggered cleaning or calibration can be controlled remotely. • Maintenance work is limited to scheduled replacement of the pH electrodes, buffers and cleaning solution.

1 CDC90 control unit 2 Pneumatic control unit 3 Double-membrane pumps 4 Cleaner and buffer canisters

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