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Entries tagged with: HMI Design

Delivering Situation Awareness During an Alarm Flood: Throw Your Operators a Lifeline

Delivering Situation Awareness During an Alarm Flood: Throw Your Operators a Lifeline

Alarm floods are periods of alarm activity during which the alarm rate is greater than the operator can effectively manage (e.g., when the operator receives ≥10 alarms in 10 minutes). During a flood situation awareness is compromised and alarms are likely to be missed. In the eleven minutes prior to the explosion…

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Human Factors in Alarm Management

Human Factors in Alarm Management

Question:

Which one of these layers of protection (operator response to alarm, relief valves, dikes, and safety instrumented systems) is not like the other? 

Answer:

Operator response to alarm (Operator Intervention), because of the “Human” factor.

It is very difficult to calculate the probability…

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