SIL 2 systems are meeting a growing number of safety system requirements in process plants as users are trying to reduce the hazards in their plants to acceptable levels. Many companies have determined that if an operation requires a SIL 3 rating, then it's too hazardous and needs to be redesigned. After working to reduce the risks in their plants to SIL 2 or lower, customers are then looking to optimize their investments in safety related systems with the appropriate level of risk reduction. In these applications, a SIL 2 safety system provides a very cost effective solution.

Dave Reynolds