why we are giving negative supply for vibration sensors?

3 Answers   Shell, Solex,

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Can anybody tell me application of PLC,DCS,SCADA.

3 Answers   Reliance,

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what do you mean by smart instruments?explain with example

4 Answers  

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Explain the working principle of variable frequency drive?

0 Answers   ABB,

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what is mean by TDC-3000

5 Answers   ADCO,

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why use squareroot in flow measurment by dp transmitter?

4 Answers  

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Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..

7 Answers   IOCL,

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draw the characteristics of chebyshev filter

0 Answers  

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I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.

0 Answers   JSW,

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hi all plz tell me difrence between analog or digital load cell.

2 Answers  

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What is the SCAN time of a DCS/PLC? What is the typical value for scan time of DCS and PLC?

6 Answers   Essar, Gasco, Siemens,

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Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

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