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what is the basic working principle of I/P and Positioner in
any control valve.
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Answer Posted / aziz
basic working principle on frequency circuit
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why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?
sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com
draw shematic diagram of c/v positioner(smart type)?
draw the block diagram of a level transmitter ?
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How can we use feedback signal frm rtd for monitoring and in dcs for controlling ,then which type of rtd is sutaible 2 , 3,4wire and why ?
Why flow/pressure transmitter before control valve?
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how to calibrate Necleuonic level transmitter.?
Why is the orifice tab provided?
the pump holds on run indication into the dcs and filed local control panel remote push button condition operaton wrong like when the push button pushing conditions the pump is off and the push button release condition the pump is on totally opposite condition . And control room inside give the stop command into dcs just 1secon relay engage and again normal condition. How can I slove
How can you add value to this Industry if offered the job?
can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.
I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?
Explain operation of Haskel pump.
