Answer / bunny

A closed control loop in a very basic manner consists of
sensor, transmitter, controller,signal converters and final
control elements.Actually in a practical loop there will be
many other instruments apart from this to support the
working of above mentioned instruments.

two common seiling liquid used in seal pots are:

1 Answers   Thermax,

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WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN

0 Answers  

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An electronic p controller has an input range of 1-5v, and output range of 4-20mA, while testing a step change of 0.4 was applied at the input , the PB setting was 50% ,what should be the change in the output ?

1 Answers   Reliance,

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why the derivative in PID is always set to zero?

3 Answers  

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We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia Oxygen analyser which is Yokogawa make. I kept the analyser in Flue gas path at Air pre heater area. My plant is 7.5MW Biomass power plant. For a particular fuel, Coconut Husk which contains Sodium and Potassium chlorides iam not getting proper reading, Analyser output always Zero. I calibrated the analyser and it is OK. For Other fuels like Wood chips, Cholam waste, DOB, Groundnutshells, Ply wood waste and all iam getting actual percentage of Oxygen. What is the main reason behind this draw back?

2 Answers  

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I have one problem for masoneilan displacer type LT.I give some imformation in data shéet given for liquid level range 0 to 600 mm and sg .955 problem is 0% is ok 25%(23%) or 50%(48%)and 75%(73%) and 100% is ok this is up value and down value all ok so please halpe me

2 Answers   Hyundai, TATA,

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how pressurize drum calibrated ?

0 Answers  

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What are the different modes of a contollogix family processor? How they work?

3 Answers   Honeywell, Siemens,

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What is the formula To convert Degree centigrade to foranhight.

5 Answers  

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on which principle control valve works?

3 Answers   Lupin, Reliance,

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What is trim material . Why it is known as trim.

1 Answers   L&T, LNG,

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what is SIL 1 2 3

0 Answers   KOC,

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