what is the difference b/w magnetic flow meter&mass flow meter? which one is best?

1 Answers  

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Can u tell me the principle of the tc,rtd,level switch,pressure switch ,transmitter(pr flow level temp.),vibration...plz

0 Answers   Adani, SRF,

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How can I map a tank?  Tank 15m h and 42m dia. we just fixed radar type lit. its reading shows over range. Now its required mapping ?

1 Answers   CMC,

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Why we not use 2-20Ma or 1-20Ma

5 Answers  

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I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )

4 Answers  

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Draw symbols of the following :

0 Answers   CCIE,

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what is piezoelectric transducer?give an example in power plant n state its principle?

0 Answers   Jindal,

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How to erection of DCS Panel at site step by step

0 Answers  

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What is the Working principle of Dozing valve?

0 Answers   Shree Cement,

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What are the interlocks we have to check during the start up of LP/HP compressor?

0 Answers   Hamsco,

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if a tank is contaning oil and water than how can we measure the oil and water level seperately

3 Answers  

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If i want use the 6 kg/cm2 pressure gauge then how to calculate its pressure gauge range?

1 Answers  

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