SOR® pressure and level switches are certified for use in IEC 61508 SIL applications. SOR announced today that the company’s line of pressure, differential pressure, temperature, vacuum and level switches have been certified fit for use in SIL (Safety Integrity Level) environments. SOR is one of only a few manufacturers in the industry to offer its entire range of switches certified to IEC 61508 safety standard. To obtain SIL certification, the products were assessed by FM Approvals per the requirements of IEC 61508 Parts 1, 2, and 3. When implementing Safety Instrumented Systems (SIS) in process plant environments such as power plants, offshore oil platforms, refineries and chemical plants, the SIL certification helps mitigate risk at the process instrument level.