What is the procedure of mounting new positioner on pneumatic control valve?

1 Answers  

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differentiate different units of pressure like US & UK standards

1 Answers  

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How u measure the massflow in orifice flow measurement techniques

0 Answers   Johnson Matthey,

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what is pneumatic control system?

1 Answers   APL,

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Please tell me details about Sox,Nox,SWAS analyser????

0 Answers   Essar,

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how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

0 Answers  

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tell about various protocols used in different plcs

3 Answers   Emerson, Samtel,

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what is modbus,profibus,fieldbus

2 Answers  

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why use 4-20mA in the field of instrumentation?

8 Answers  

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How will you select suitable Instrument for Process line/Tank/Vessel?

5 Answers  

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why we are using magnet for calibration of gas detector?

0 Answers   NSH,

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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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