Whether you are employing ANSI/ISA 84.00.01-2004 (IEC  61511) methods or your own prior use practice for safety system design and life cycle management,  Endress+Hauser can provide you the right transmitter and safety system support documentation you need for the cost of a standard transmitter. The elimination of separate safety transmitter versions contributes to reduced life cycle costs. We made the choice to provide our instrumentation as a single standard class that can be used for ANSI/ISA 84.00.01-2004 (IEC  61511), prior use or basic process control applications.   We employ IEC 61508 processes required of a manufacturer across the board

The emergence of ANSI/ISA 84.00.01-2004 (IEC  61511) and IEC 61508 standards are giving (SIS) engineers better tools to  model and evaluate Safety Instrumented System (SIS) designs.  Components used in safety systems are available with SIL metrics  that allow Probable Fail on Demand average (PFDAVG) and the Mean Time To Failure Spurious (MTTFSP) to be modeled.  This goes a long way to ensure that the SIS being designed not only addresses the desired Safety Instrumented Function (SIF )and target Safety Integrity Level (SIL) but also the desired vailability. Endress+Hauser provides detailed functional safety manuals and SIL documentation that Safety Instrumented System engineers can use in their design efforts.