Thermocouples work as follow:
What is the use of valve positioner?
what is the difference between auto tuning and manual tuning of controllers(eg:PID,PI,PD CONTROLLERS )
how can you set a zero and span of transmitter?
what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?
how will do square root transmitter calibration
Different between control valve and mov
what is working principle of presure and temperature guage?
Why we are measuring 4-20ma? Why we are not taking 0-20ma? Plz answer this
how to measure flow with dp
For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.
If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.
1 Answers Process Control Technologies,
what is the importance of CV in the control valves? how it is calculated?
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