Emerson 2-Wire Transmitters Approved For Safety Instrumented Systems

Emerson Process Management's Rosemount 5400 series of noncontacting radar level transmitters are now approved for safety instrumented systems. Following successful third-party evaluation, the 5400 series comes with the required failure m odes, effects and diagnostic analysis (FMEDA) report.
 
This means that companies in the oil and gas production, refining, petrochemical, chemical and power industries can utilize performance of radar technology while ensuring compliance with the associated IEC industry standards.

The FMEDA report provides safety instrumentation engineers with the required failure rates per IEC 61508 and with proof test recommendations. With a longer proof test interval, the proof test can be coordinated with plant turnaround.

The Rosemount 5400 Series (with 4-20 mA output) was evaluated in accordance with the hardware assessment IEC 61508 by the Technical Research Institute of Sweden. The resulting FMEDA report, with safe failure fraction over 80%, shows SIL 1 suitability with a hardware fault tolerance (HFT) of zero or SIL 2 suitability with a HFT of 1 or with proven-in-use demonstration according to IEC 61511 (type B subsystem).

For more information, visit http://www.emersonprocess.com.

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