Answer Posted / sam.r
An undesirable oscillation of appreciable magnitude,
prolonged after external stimuli disappear. hunting is the
evidence of operation at or near the stability limit.
in control valves is caused by the oscillation in the
loading pressure to the actuator caused by the instability
in the control system or the valve positioner .
| Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
How to calibrate the flow transmitter
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.
A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.
what will the sending unit in the fuel gauge utilizes?
how is work pressure switch& level switch?what is the principle of this?
what is the procedure of belt scale calibration?
What is the main difference between Cavitation and Flashing?
A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe
why is not useing in boiler skin thermocople
all questions related to instrument technician in any offshore oil and gas company.
what is function of SCADA , and how is it work, explain with difination
Can anyone send most commonley asked Instrumentation questions and answers in cement industry please?
Introduce yourself which is not present in your biodata?
We Have Two Field bus Pressure Transmitters of Different Sensor Range (I.E One is of Lower range and Another is of Higher Range).Is same Process Line. My Question is Can i provide Saturation Limit to my field Bus Transmitter as We can provide Saturation current limit to HART Instruments. As During Low Pressure Both Working OK ,But During High Pressure, transmitter with Lower sensor range Goes to Fault mode as Beyond its Sensor Limit it can Measure, So may I provide Saturation point Some where to Suppress This Fault during High Pressure.
Can anybody tell me which type of question are asked in the interview for the FORMULATION(Pharma) as a instrumentation engineer, & question in building managment system.