Answer / rameez_rz2000

1st of all we have to open the control valve 50% and then
the feed back link of positioner will came at 180 degree to
control vale and now we will adjust the screw

Answer / rk

think positioner is nothing but a control valve.installation of positioner is done by closing the valve,then it has flange which helps to b screwed with pipes.

why we use 4-20 mA to do calibration of the instruments.why we cant use 0-20 mA?

8 Answers   Emerson, IEM,

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Define cryogenic?

0 Answers  

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my data card only does run in my mobile so how can change it that it run other mobile & computer and i can stor data in my data card

0 Answers  

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Explain the working of an electronic level troll.

0 Answers  

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what is diffrence between cascade & three element system.

3 Answers  

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what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question

0 Answers  

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1.In which princeple DP transmeter works? 2.Why UPS system is use for DCS? 3.How drum lvel controller works? 4.What is the difference between glob valve and gate valve? 5.How axial shift probe work & in which princeple it works?

1 Answers   Luberef, Qatar Gas, Reliance,

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what is meant by nuclear collector?

0 Answers  

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How to work & calculated output of the Derivative action in pid controller (Explain Derivative controller)

0 Answers  

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If we increase D what will be the controller action?

2 Answers  

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in split range control valve,two valve should be in two different line and that should have some distance,and we have only one positioner feed back link.so how we connect one feed back in two control valves?if you have picture please forward me.my email id kb.syamkumar@gmail.com

2 Answers  

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What are de-saturators?

0 Answers  

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