Why are Rate of Change Alarms used?

Rate of change alarms are used to predict an event that is abnormal behaviour for a system or process. The objective being in order to take preventative action in order to avoid system or process failure or damage. If a process value suddenly increases at a rate beyond the normal, then it indicates something unusual has changed in the system or process. This is different to an absolute (low or high) alarm. Continue reading "Why are Rate of Change Alarms used?"

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