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The single biggest cause of poor operator alarm performance is an inconsistent set of values of the alarm limits. But search for advice on how to find values for alarm limits and the answer will be: "put the limits at the boundary of where you normally operate". For the practising engineer this advice is next to useless because he or she doesn't have a way to locate that boundary across many hundreds of variables.

The key is an Operating Envelope or Operating Window spanning many hundreds or even thousands of variables, some with alarms defined and some without.

Better operator alarms make money for your plant by reducing operational variability, which contributes to a reduction in operating costs and, in cases where throughput is increased, to a reduction in the unit costs of production. Conversely, poor operator alarms cost you money every single day.

In this webinar, first presented in October 2019, you will discover the modern method of alarm rationalization by locating the Operating Window and Envelope of any chosen set of objectives and setting alarm limits around its boundary. You will see the usefulness of being able to see and compare Windows and Envelopes for different operating objectives and the benefits of predicting Alarm Performance with immediate feedback instead of the delayed feedback inherent in the old method.

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PPCL Webinar: Event Prediction
13th and 14th November

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