what should be distance from tapping point to inallation place of instruments?
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Answer / meraj143545@gmail.com
Under 6 mtr should be installed tx
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Answer / afsar mumtaz
D AND D/2 IN CASE OF UP STREAM AND DOWN STREAM
D: DIAMETER OF PIPE
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Answer / arun
D is the distance between taping and orififace plate flange
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How to measure Flow of air line,what is the procedure of creating DP in line to measure Flow!
How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.
There is a problem with our HART475 it is not communicating with smart devices error becomes "NO DEVICE FOUND"we have insert 250ohm resistance as per requirement but invain plz tell me the solution?
i want to know the interview format fot gail, instrumentation. pls answer me in habib.sami1003@gmail.com
What is hp & mp seperator .& what is its working principle ?
I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )
how ranges is decided for drum level or dearator level,in my pplant i have seen for boiler drum range is -1000 to 1000mmwc, while for dearator -2000 to 0 mmwc ,why they decided to take this range ?
Calibration procedure for electro magnetic flow meter
in my plant 100% feedwater control v/v is air to close but due to instrument air fail,the valve opens but instead of drum level high its get tripped in low low drum level.the urv of level tx is 0 and lrv is -800.pls tell me the reason. for such behaviour.
Draw a great bridge circuit.
what is meant by control valve sizing?
How can we cheak the ENCODER ?
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