When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

5 Answers   Exxon Mobil,

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What is T4 temperature in compressor?

1 Answers  

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how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.

0 Answers   Adani Power,

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In closed loop control there are several “blocks” used to show the interactions between the process and the control system. These blocks are referred to as the “process” and the “controller.” Describe the relationship between these two blocks when creating a well tuned control loop.

1 Answers  

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How to calculate the Range of level transmitter ?

1 Answers   CPCL, Sejong, SSPL,

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What is the purpose of valve positioner. Explain 4 uses.

2 Answers   SRACO,

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Someone please do mail me some instrumentation questions for Hindustan Petroleum test to avinalexander@gmail.com .Really would be gateful if someone could help me

3 Answers   HPCL, Immersion, IOCL,

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What are the charcterstics of a P&ID controller block for Governor speed raise or lower for a load sharing functionality between 4 Gas turbines in droop mode.

0 Answers   TNPL,

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draw shematic diagram of c/v positioner(smart type)?

0 Answers   Coromandel,

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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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How to measure density of oil in your kitchen. i.e indirectly to verify the quality of oil using min. gadgets available in the kitchen/house.

1 Answers   HPCL,

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Flame scanner

1 Answers  

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