Rationalizing Plant Alarms » ANSI/ISA 18.2 Alarm Management Lifecycle

ANSI/ISA 18.2 Alarm Management Lifecycle

Rationalization is one step in the alarm management lifecycle defined in ANSI/ISA-18.2-2009 Management of Alarm Systems for the Process Industries.

In this step, identified candidate alarms are judged against principles established in an alarm philosophy document to qualify which are legitimate alarms, to specify their design, and to capture rationale and other information to guide operator response.


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