Intelligent Sensor Management Lowers Maintenance Requirement for PH Systems

Related Vendors

DÜPERTHAL Sicherheitstechnik GmbH & Co. KG

Italvacuum, Srl

Anton Paar GmbH

Mettler-Toledo AG Process Analytics

The Solution: Intelligent Measurement and Control Equipment

Mettler Toledo installed a system based around the InPro 2000i pH electrode. According to the company, this probe is ideal for this application – as it has been designed to function in extreme environments where quick and accurate pH measurement is required. Its gradual outflow of the pressurised liquid electrolyte ensures fast response and long maintenance intervals, while the patented silver-ion trap prevents electrode poisoning from sulphides.

The InPro 2000i is a member of Mettler Toledo’s Intelligent Sensor Management (ISM) family of sensors. ISM, the technology based on additional identification and status data storage, reduces the maintenance requirement for pH systems by sending diagnostics data to the transmitter, informing the operator of required maintenance before measurement is affected.

Predictive maintenance for Reliable Performance

The diagnostics information is displayed on the connected M400 transmitter as the Dynamic Lifetime Indicator, which shows the remaining lifetime of the electrode based on the current process conditions, and adaptive calibration timer, which tells the user when calibration will next be required. The multiparameter M400 also accepts analog sensors.

A suitable housing for the InPro 2000i is the InTrac 776e. Its retractable design includes a built-in flushing chamber, in which the electrode can be cleaned and calibrated when required, without process interruption. For exceptional ease of use, an EasyClean 350 system attached to the housing and transmitter takes care of electrode cleaning and calibration, automatically.

The complete system: electrode, housing, transmitter, automatic cleaning and calibration system, and ISM technology provide a state-of-the-art pH measurement system; giving users process confidence and reliability, plus outstanding performance.

What the Customers Say

The Brazilian sugar company is more than satisfied with the solution offered by Mettler Toledo as far as the performance of the system is concerned. Before implementing the system, sensor maintenance was performed on a scheduled basis, and on many occasions technicians found calibration was not needed.

The Brazilian sugar company therefore appreciates the predictive diagnostics of ISM, as they now perform calibration only when it is required and are forewarned of the need for sensor replacement. The technicians are also impressed with the durability of the InPro 2000i, which has resulted in reduced electrode consumption.

* The author is a Sales Engineer in Mettler Toledo Process Analytics, Brazil. Tel.: +55 11 4166 7400

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