What is mean by Adapter block and net block?
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How can a d.p. Transmitter be calibrated?
What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).
How to work temperature gauge?
why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature
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Give 2 application of quartz crystal used for process parameter measurement.
Which topics are covered in Process Control?
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.
How to calibrate capillary type level transmitter
this site is owned by an nonsense
What are the types of control valves available
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How to control flow variations in magnetic flow maters..... When i will provide proper earthing?