What is open loop checking and close loop checking

1 Answers   BARC, NTPC,

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What is meant by Fail Safe Condition in PLC?

4 Answers  

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List three types Level Switches with their working principles

0 Answers  

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How LVDT position transmitter works on DC supply(24vdc) from DCS, whereas transformer operates on AC supply? pls help..

1 Answers  

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waht is difference between pressure transmitter and transuducer

4 Answers   Gasco,

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Reasons for using current as signal

1 Answers  

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What are different types of orifice plates? State their uses.

0 Answers  

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why use on -off control valve in glove valve

1 Answers  

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Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?

2 Answers  

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generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 Answers   Indian Steel,

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How to calibration coriolis flow meter?

0 Answers  

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What is inside the PLC panel? How does instruments communicate to DCS computer via PLC? What is the type of wiring in PLC connections? Please answer... Thanks

1 Answers  

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