I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

3 Answers   OPaL,

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What is fault tolerent system

2 Answers   GNFC,

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What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?

0 Answers   Kentz,

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how to convert bar to mA?

1 Answers  

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define feed forward control loop with example and drawing?

0 Answers   Honeywell,

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Why 1-5 vdc a standard?

1 Answers   Process Control Technologies,

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For a diafhram 1.5 d =kn(p-p0) D4 Where d in deflection in inch k=constant n=no of capdule (P-P0)=Applied pressure in psi D In active dia at capsule. -1.5 d=k to p d being constant -1.5

0 Answers   L&T, Shiv Tech Marine Control,

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how to relay switch sense the fault?

0 Answers   ME,

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What is the cascade control

0 Answers  

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how to check electrical health of vibration probe?

1 Answers  

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How does a redundant controller comes in line when the main controller fails??

3 Answers   Yokogawa,

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What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?

0 Answers  

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