Electricity + Control February 2019

SENSORS, SWITCHES + TRANSDUCERS

The FMR62 ultrasonic level trans- mitter provides a high degree of accuracy in level measurement.

the FMR62 to the customer and a defined assess- ment matrix was developed. Three test units from different manufacturers were run on the mixing tanks and assessed on the following criteria, as

factory’s maintenance manager emphasised how impressed he was with Endress+Hauser’s ultra- sonic level transmitter’s accuracy at low levels. His initial assumption was that the level transmitter was drifting at the zero point after the tank was emptied. However, on closer inspection it became evident that the FMR62 was detecting the residual from the sidewalls that was pooling in the vessel cone. None of the other trial devices had revealed this inherent process condition. The manager further commented that this measure represented excellent accuracy in the most difficult part of the tank (the cone). The ac- curacy delivered was better than he had hoped for and this could aid operators to ensure the tanks were truly empty before starting a new production batch. This positive feedback has resulted in the site planning a migration strategy for its mixing tanks that will leverage the technology benefits of the FMR62.

The accuracy delivered was

better than hoped for.

determined by the customer: • Process fit and integration • Ease of use • Service and support • Performance • Total cost of ownership

The solution provided by Endress+Hauser proved to be the best overall, scoring highest in the eval- uation. The performance demonstrated by the unit allowed the customer to determine minimal levels that accumulated in the vessel via the sprayball during cleaning in place (CIP). This offered the cus- tomer a new degree of traceability and the capa- bility to ascertain from a single trend view if a CIP had been carried out between batches. When reviewing the results of the trial, the

Electricity + Control

FEBRUARY 2019

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