Digitalizing pH measurement

State-of-the-art digital pH instruments like the Memosens CPS11E offer extended storage of calibration and process data, enabling better trend identification and providing a basis for predictive maintenance and enhanced IIoT services. When starting on the digital transformation of your processes, pH measurement is the ideal candidate, as it fulfills three essential requirements:

• it is the most frequently maintained measuring point in a plant

• the high level of diagnostics inside the sensor makes data-based decisions possible

• it is HART capable

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Endress+Hauser offers a technical solution integrating an Ex-Zone 2 Field Xpert SMT70 or Ex-Zone 1 Field Xpert SMT77 tablet equipped with the Field Xpert software. This enables maintenance technicians to collect data directly from individual pH probes. Back in the office, and connected to its docking station, the tablet synchronizes its data to the Endress+Hauser cloud solution, Netilion. From here, a wealth of possibilities opens for data analysis and interpretation.

• Combining the application knowledge with data from each pH probe will enable you to identify deviations in key parameters and make decisions to extend the probe maintenance cycles according to their application conditions.

• Netilion Analytics lets you manage all the devices in your chemical plant and improve plant management by eliminating obsolescence and standardizing your installed base.

• Netilion Health is a digital asset management service that provides diagnostics from your field devices and the remedies ready when and wherever you need them.

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Should conditions be too dangerous for data collection in the field, our devices can also be equipped with a WirelessHART dongle. For this application, Endress+Hauser offers the FieldPort SWA50, suitable for transmitting HART signals in hazardous areas. This permanent connection to our cloud services offers the potential for refining the maintenance process, and, by minimizing uncertainties, enables calibrated operating ranges to be optimized for the best process efficiency.

Soon, pH sensors will likely store more information about their use and operating conditions. Availability of this information in cloud-based applications like our Netilion services will enable higher-level monitoring and analysis to improve their performance. These systems will allow users to optimize their maintenance intervals, reduce their costs and extend the life span of their sensors.