SIL Certified Siemens SITRANS TH200 and TH300

risknowlogy 2009-05-13

Proven in use study on Siemens temperature transmitters

ZUG, Switzerland – – 13 May 2009 – – Risknowlogy®, a leading provider of risk, reliability, safety and certification solutions, announced today that it completed a proven in use study on the TH200 and TH300 temperature transmitters of the Siemens SITRANS series. Both transmitters are used in the process industries and can be used in SIL 2 applications.

Siemens Sitrans TH200

Risknowlogy has performed an extended proven in use study and verified the functionality of the devices, the conditions of use, the field data, and the modifications history for the hardware and software. Based on these results Risknowlogy carried out an reliability study including a data analysis, an FMEDA and Markov study. The results of the proven in use study results in a technical report including functional safety data sheets(tm). The functional safety data sheets(tm) hold the most important functional safety properties like SIL level, SFF, failure rates, MTTFs, MTTFd, and Diagnostic Coverage.

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Risknowlogy is a leading provider of technical risk management solutions including knowledge, services, and products in the functional safety industry. Risknowlogy’s key focus is on the clients in need of risk, reliability, security and safety engineering solutions. For more information visit