If any control valve create hunting problem, what is the
possible reason and solution?
Answer Posted / bhavesh
check the gland packing,check the positioner o/p is
unstable,check the small leakage on actuator.
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
Calibration procedure for Electro magnetic Flow meter
hello sir/madam, I,Subramanian need 5yrs placement papers of officer trainee of Instrumentation technology.pls send to this mail id mani_nxtgen@yahoo.co.in please do the needful. with regards, subramanian.v
What is difference between radial vibration and axial vibration explain in detail .
Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?
What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.
A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?
Explain the working of an enraf level gauge.
What is Span Error
can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?
How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?
What is the use of control cable?
How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?
steps for installing orifice plate?