AnHui TianKang Liquid Level Meter Safety Integrity Level Certificate SIL2
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No. 1N180829.ATSTD49 Technical Construction File no. SIL-CLK(15)-03
Certificate’s Holder: Anhui Tiankang (Group) Shares Co.,Ltd.
No.20, RenHe Road, TianChang City, Anhui Province, China.
Product: Bimetallic Thermometer
Model(s): WSS series, WSSX series
Standard: Standard: Has been assessed per the relevant requirements of: IEC 61508:2010 Parts 1-7
And meets requirements providing a level of integrity to: Systematic Capability: SC 3 (SIL 3 Capable)
Random Capability: Type A Element
SIL 2 @ HFT= 0; SIL 3@ HFT=1; Route 2H
PFDAVG and Architecture Constraints must be verified each application
* Safety Function:
When the temperature changes, the thermal expansion of the two metals is different, driving the pointer deflection to indicate the temperature.
* Application Restrictions: The unit must be properly designed into a Safety Instrumented Function per the Safety Manual requirements.
* Is suitable to be safety function according to the description and the configuration defined in Annex I.

