what is ment by PID controllers? explain with example?

2 Answers  

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What does a hookup diagram look like? can you give sample drawing. thanks.

1 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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Emergency Shutdown Systems/ Plant Shutdown System.

0 Answers   CCIE,

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What is the purpose of valve positioner. Explain 4 uses.

2 Answers   SRACO,

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why we are using (-24VDC) and where we r using plz tell me

7 Answers  

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I have 475 hart communicator. this is not support any new type of instruments such as tranmitter,fieldvue DVC6200.DVC 200 since i got point out need to upgrade . my questions is how can upgrade new instruments software in my 475 hart communicator. can any answerplease>?

1 Answers  

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Pls can anybody tell me how much memory plc's has?in byte or in Kb

2 Answers  

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How can I make calculation for Install level transmitter (DP) for open tank and cloes tank?

1 Answers   Petrofac,

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what is ZERO SUPPRESION and ZERO ELEVATION?

3 Answers   Reliance,

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Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

0 Answers  

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

2 Answers  

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