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In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.
2022(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
4104Post New Instrumentation Questions
What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?
What is difference between ESD and PLC please Explain me clearly.
I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.
Where are oxygen analysers installed in cfbc boilers? What are their usual readings?
what step is taken for ESD ( emergency shut down) in DCS REPLY to hashimka20009@gmail.com
Describe how to use megger to measure the earth resistance and insulation resistance
why Fahrenheit unit of moistur analyzer transmitter
What is 1:1 redundancy ?
what is output of FOUNDATION FIELD BUS transmitter
hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com
Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.
With N nodes and B branches what will have a network ???
What is Droop? What is Step/Gradient Limiter in Turbine Governor control?
detail of mass flow meter pricipal
What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?
