Process System Instrumentation and Alarms

Suggested control and instrumentation for the management of process components are shown in API RP I4C which is still relatively the standard within the industry. All process control systems are usually reviewed by a Process Hazard Analysis, which will deem if the provided mechanism area is adequate to prevent a catastrophic incident. 

Any critical safety related control function should be protected from impairment from an accidental event that would render the device unable to fulfill its function. 

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