Purpose: SIL or Safety Integrity Level is the target statistical representation of the reliability of a Safety Instrumented System (SIS). In order to achieve the target SIL rating, all components of the SIS must realize the target SIL. To support the safety goals of machinery and processes that strive to comply with SIL, all risks must be adequately mitigated. Even after all possible design criteria and complementary safety barriers are considered, a risk gap may still remain for many circumstances.
In such situations, a signaling solution will help narrow the risk gap. Pfannenberg offers audible and visual signaling devices that are specifically designed to meet SIL 1 and SIL 2 requirements. Backed with documented statistical data, self monitoring, and fault reporting, these units eliminate the need for redundant devices.