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sounds like a transmitter failure.

Magflow meters rely on flowing conductive fluid. The current flow is minimal so unless you have a non-conductive buildup on the electrodes, you'll get a reading. There are a variety of insitu electrode cleaners.

It is a bit more complex than Laplace transforms. For example, how many trays or in the column?

"The analog inputs are all loop powered in our case and use a non-incendive power supply." Sounds you are getting ground loop surges, from the field (motor starts, etc.). The field grounding, can really show extreme voltages relative to the control room/DCS grounding. We were seeing several...

siraj, are your RTD's sheathed? If so is the sensor electrically connected with the sheath, so called grounded tip sensors?

if flame out is detected, shut the main fluels feeding the burner. burner logic beyond that is a detail engineering issue, well beyond a forum response

state the pressure, temperature, and the fluids involved, and whether single phase or not.

Didn't watch the vid, but am familiar with the Smith predictor, adaptive controls and various matrix methods for continuous and discrete time systems

Interesting class, root locus plots come in handy too with excel and visual basic, the hysterisis mentioned involved occasional valve stem binding.

we had several submariners mechanical managers in the power house, too, they do know how to deal with the plant environment, and smart!

does pole placement address valve hysterisis?

wait until you turn a controller in a heat exchanger loop, it is a multidimensional universe in that case, beyond pole locations, or even more challenging a steam dearator in a boiler feed water loop, with flow, pressure, drum lever, and emergency feed water...every thing is logical and rational...

The Smith Predictor is not always effective, and a derivative action to speed things up only work in a narrow range of applications where you have servo controls (robotics and related automation), minimal dead time, instant measurements, and minimal time constants, but generally ineffective in...

Now if you have thermal mass, warmup times in your heat source, not to mention transport delays of the fluid in the pipe, sensor response time, what ever you do, sort it out first. Fast controller response is meaningless, if the process response time is 20 minutes...

You can use crushed ice or boiling water for a quick check, your lab may have other sources of calibration

Because of the long transport delay or lag times, the controller settings require gradual changes as rapid changes in some system result in over corrections and thermal instabilities.

Weigh-belt feeders are commonly used. They are still used

Most orifice style measurements are useful for higher fluid velocities, your flow is well below 1 meter/sec in 3 in piping. You might have to consider an alternate flow element and 1 inch piping.

what is the surface temperatures close to the bearing using hand held monitor?

Okay, you've provided Fluid Liquid Stated Flow 3200 Kg/hr (suggest small piping not normally measured with orifices) Press 59-64 Barg Temp 40-90 DegC Trans Span 0-6 mBar (Please Explain the discrepancy with you...