Safety Trip Alarm SIL2- and SIL3-Certified to IEC 61508

The STA Safety Trip Alarm from Moore Industries has been certified by exida for Safety Instrumented Systems to IEC 61508:2010 for systematic integrity up to SIL 3 and for random integrity up to SIL 2. This means that that the STA is approved for single use in Safety Instrumented Systems up to SIL 2 and in redundant architecture such as 1oo2 and 2oo3 up to SIL 3.

Approval from exida provides independent verification of the integrity of the STA from a leader in industrial safety certifications and ensures that it meets the industry safety standards specified in IEC 61058: Parts 1, 2 and 3. As part of its certification of the STA, exida measured the effectiveness of the product development process to prevent systematic failures along with its strength at protecting against random failures. Certification of the STA by exida ensures product quality and reliability for customers along with reducing risks and lowering lifecycle costs.

The STA comes with comprehensive safety data certified by exida to determine its applicability to specific safety-related applications. In addition, reliability data from the STA certification can be used by engineers to design and verify each Safety Instrumented Function in their system.

The STA provides an alternative method to backing up PLC or DCS soft alarms. It serves as a single-use safety logic solver that acts on hazardous process conditions, provides emergency shutdown and provides on/off control in Safety Instrumented Systems.

Additional information on the STA can be found at http://www.miinet.com/safetyseries. This page also has the new “STA Safety Trip Alarm Demo with Peter Welander” video which provides an informative look at exactly how the STA works and the advantages it provides.