Answer / vinoth.s

Turndown RATIO= MAXIMUM ALLOWABLE VALUE/ MINIMUM CONTROLABLE
VALUE.... SIMPLY DIVIDING THE UPPER RANGE/ LWER RANGE

how to calibrate a control valve?

7 Answers   Reliance, Telecon Systems,

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why 4 to 20 ma? why cant some other range?

3 Answers  

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How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,

0 Answers   TATA,

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Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?

0 Answers  

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what is the difference between plant earth and instrument earth? and what type of cable( cable size ) used for both? and why ?

0 Answers  

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what is the difference between(Flame proof/Explosion proof)& Fire proof instruments.Both are same or different & if different in which way because the transmitter which have approved ATEX flame proof enclouser but it use PTPE O ring & PTFE Head Gasket,so its (fire safe/fire proof)????????

4 Answers  

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In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

1 Answers   Process Control Technologies,

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Is there devices to convert mechanical energy/rotational energy into electrical energy.......? PLease suggest me....

6 Answers  

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Explain an adaptive / self-tuning controller’s major draw card.

0 Answers  

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What is zener diode? What is voltage regulator?

0 Answers  

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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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When can a bypass not used on a positioner?

1 Answers   CCIE,

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