In closed loop control there are several “blocks” used to show the interactions between the process and the control system. These blocks are referred to as the “process” and the “controller.” Describe the relationship between these two blocks when creating a well tuned control loop.

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draw the block diagram of a level transmitter ?

0 Answers   Hira Group, Samsung,

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Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

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what is skin thermocouple?

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what is Green field /brown field exposure in chemicals /oil /petrochemicals /refineries /paints /speciality chemicals /gas /FMCG /glass industry

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What is the three element? And how it work?

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Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plants instrumentation field , which one field is give long life & which one field is best ,I confused a lot And also I'm studying AMIE, can I choose which field from Section B examination?

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I have a close vessel tank which is under vaccum when in running condition so pl. Provide it's range for dp type tx whose flange to flange distance is 440 mm and density is 1

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what is cavitation ?

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why are use only 4 to 20ma. signal.

9 Answers   Otsuka,

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if we mount flow tube in arrow direction then flow comes in negative & if we mount it another direction then flow comes positive,So what will be the problem

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what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly

2 Answers  

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