Nuisance Alarms are one of the most common alarm management issues (Nuisance Alarm: “an alarm that annunciates excessively, unnecessarily, or does not return to normal after the correct response is taken (e.g., chattering, fleeting, or stale alarms.) – ISA-18.2”). You may recognize one source of nuisance alarms as the alarms that are “permanently” displayed on the alarm summary screen).
They are bad because they desensitize the operator, causing them to ignore, and potentially miss, critical alarms. This is sometimes called “The Boy Who Cried Wolf” phenomenon. They also undermine the integrity of the entire alarm system (an alarm is supposed to require a timely response from the operator to prevent an unwanted consequence).
The attached you tube video (based on the children’s story “The Boy Who Cried Wolf” and on an actual incident) is designed to raise awareness about the impact of nuisance alarms and hopefully drive action to eliminate them.
There are many powerful capabilities within DeltaV to help users identify and eliminate Nuisance Alarms. For more information about DeltaV Alarm Management, check out http://emrsn.co/AlarmExperts