Alarm management is more than just rationalization

DuPont's global alarm management leader, Nick Sands, walks Stan and Greg through the elements of ANSI/ISA-18.2-2016, “Management of Alarm Systems for the Process Industry.”

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Stan: I remember the alarm panels in the good old days of analog controllers. You had to be selective as to the type and number of alarms because there were so few windows available due to cost and space. Each alarm demanded a specific action and was well documented. “First Out” sequences were common, so the operator knew the initiating event. Then the DCS came along, and we now had Lo-Lo, Lo, Hi-Hi, Hi and deviation alarms sitting there with default settings. They were waiting to be set. In the process of doing so, the configuration and process engineer started to come up with creative uses when the real thought should have been how not to use them. Greg: Suddenly,…

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    Full Story
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