The SSX and SST family of safety isolators and splitters from Moore Industries have been approved by exida for use in a Safety Instrumented System (SIS) up to SIL 3 in monitor mode, where only the input circuit is part of the safety function. It is the latest product in the FS Functional Safety Series to receive SIL 3 approval, joining the STA Safety Trip Alarm. The SSX and SST are also approved for single use in an SIS up to SIL 2, as is the SRM Safety Relay Module.
These three products form the core of Moore Industries’ growing line of safety-related instrumentation. They have been designed and built to strict IEC 61508 standards, ensuring safe and reliable function – particularly in environments where hazardous or emergency situations are likely to occur. Detailed FMEDA reports are also available for all FS Functional Safety Series Products.
Although using Proven In Use data is an acceptable approach per the IEC 61508 standard, designing instruments in accordance with the standard from the ground up forces the components and circuit design to undergo additional scrutiny that ensures the highest level of reliability. Leading third-party safety auditing firm exida audits Moore Industries products and processes to ensure they are in compliance with the IEC 61508 standard. With this certification, end users can rely on these instruments to perform as expected and when demanded.
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