Two issues with the instruments; seeking solutions.
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1. Is the wiring in our DCS normally powered via floating voltage? 2. Have Romon’s transmitters achieved SIL3 certification? Seek a solution
Are Rosemount transmitters generally powered floatingly by SIL2 DCS? I don’t quite understand
So does that mean it still can’t be used on SIS? Aren’t all those requirements SIL3?
According to the safety instrument system specifications, it is not allowed to use it; if it is to be used, a 3-out-of-2 selection is required
According to the standards, \"Safety Instrumented Systems are classified into SIL1, SIL2, SIL3, and SIL4 levels based on the requirements of safety integrity levels.\" The higher the safety integrity level, the stronger the safety functions that the safety instrumented system can achieve. Petrochemical projects should not be at a SIL3 level or higher. ”Why can’t SIL2 be used in SIS systems?
To achieve SIL3 through redundancy of multiple SIL2 transmitters, it is a prerequisite that the system capability of a single transmitter must reach SC3, that is, SIL3.