Answer / raju b

yes you can use the liquid with density. you need to
workout the density calculation In E&H Txr this facility is
there

Answer / rajkumar

A fluid column generates a specific hydrostatic pressure as
a function of density and filling level. A pressure sensor
attached to the bottom of a tank measures this pressure with
respect to a reference pressure (generally ambient
pressure). Conclusions are then drawn as to the filling
level with the aid of the known fluid density. Hydrostatic
level measurement is suitable for virtually all types of
fluids and produces very precise measured values, dependent
on the accuracy of the pressure transmitter.

Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

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List three types Level Transmitters with their working principles

1 Answers   ABB, Bapco Bahrain Petroleum Company,

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what is the working principle of dis-placer type level transmitter

1 Answers   Sendan,

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In control valve , Failure position : Close If it is Fail close(FC) during failure of AIR.. what will be the initial/ normal position of control valve is it normally open or close? please some one explain soon..

2 Answers  

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whats the diff b/w zero pressure and obsolute pressure

4 Answers  

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how the actually positioner of control valve working? where we gave 3-15psi pressure to I/P converter where it is firstly applied ?- on I/P to positioner then what happen? is control valve operate on 3-15 psi or its bench pressure?

2 Answers  

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How find CGPA? when marks are 515/850 & 2559/3350. Plz any one tell me.

1 Answers  

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A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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what is the difference between Cv and air consumption? why the customer needs Air consumption details?

0 Answers  

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What is rtd output signal

4 Answers   Nestle,

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I am pujita completed Electronics and Instrumentation Engineering.As a fresher i am going to attend the interviews.Could anybody guide the topics/questions covered mostly in interviews.

11 Answers  

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Which is your favourite subject & explain any one topic of it.

0 Answers   L&T,

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