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Following on from the earlier reply which mentioned testing of the loop, what we often do these days, assuming the SOV is on a shut-down valve circuit, is to design the loop with a valve partial closure test facility. This allows a technician to start to close the pipeline valve, but the circuit...

Anyone have any RECENT experience with a large Foundation Fieldbus installation. Good or bad, I would be very interested in your opinions, including whether you think the promised benefits are real [reduced cabling, predictive maintenance, ease of loop check etc]. Thanks in advance

If you have to use the European "Zone" system rather than the US "Class/Div" system then EN60079 is the correct standard. However, this does not allow UL/FM etc certified equipment. And on a large "global purchase" project, this can cause difficulty if some package...

To get turbine meter accuracy with an ultrasonic meter you need a multipath time of flight meter. Khrone have a meter that is now accepted for custody transfer of crude oil in at least some of the European countries. There may be others as well. Strap ons are great for general purpose metering...