Thermocouples in catalyst beds???? If yes, they are not redundant measurements. While this might be the voting in the SPLC. This is not the voting in the SIF definition. So a much simpler SIL Calc and beta factor estimation exercise. ------------------------------ ...

Just curious what software platform the end user community is using to: Create calibration procedures, track calibrations, and report results. Create proof testing (e.g. interlock testing) procedures, track proof testing, and report results. Create instrument inspection ...

Hi Sagir, Not that I am aware of. In any case, it always depend on the instrument requirements, which differ from one to another. That been said, it shouldn't be complicated to define a basic set of rules based on standard parameters and do calculation only if a given instrument ...

Hello all, Am looking for an international standard for instrumentation field cable sizing. Something similar to NEC Article 725. One should be able to size cable based on the voltage drop- but is there a standard spec for the permissible voltage drop? Or we should be ...

Jonas, Monitoring of a Thief hatch or the position of any other mechanical device by a proximity switch does not necessitate instrumentation taagging or symbology for the mechanical device. Per iSA-5.1, the proximity switch would be identified by an instrument bubble with ...