Answer / ecxlsync

Proportional is to respond the magnitude or error of the
process.
Integral is to respond the number of error occured at a
given time (integral time).
Derivative is to respond the rate of change of the error at
a with respect to time.
PID is a Control algorithm to perform a control action on
the final element usually a control valve to correct the
error of the process value and lead-lag effects.
proportional term will determine the amount of
opening/closing the valve with respect to the error signal.
Integral will eliminates the offset and tries to set back
the process value to the setpoint.
Derivative is to reponds quicky as the error is about to
occur.

what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly

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I want to apply for the universities in US,but i got the GRE score of (650+300=950)TOEFL 69/120.Is this score sufficient for applying universities please i am married i need to go to US because my husband didn't get H1 yet.please send me suggestion

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what is sinking and sourcing....

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can any one explain in which term we are flow flow is it volumetric r is it mass? and y

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2 Answers   Electronics, KNPC,

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7. What are tri-state devices and why they are essential in a bus oriented system

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Hi Frnds , If Suppose 1 Pair cable of 1.5 sq mm is used for Transmitter and instead of 1.5 sq mm if i used 0.5 sq mm cable will the resistance change will occur and does it affect our transmitter reading. plz mail ur answer to ntnkamble@gmail.com plz immediately mail ur reply

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If range of 3-15 psi, a multiplying relay with a 1:2 ratio would give what output pressure for 6 psi input?

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Explain why plc require in analog input 4-20amp & 0-10 volt?

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