why we are using -24 vdc in plc?

1 Answers   CGL,

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As you are fresher in Instrumentation & control engineer.Then why should I select you?

1 Answers  

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what are level of automation & how these are distinguished ?

3 Answers  

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Pressure transmitter working Principles?

1 Answers  

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Explain PID, ON/OFF, Controls

0 Answers   CCIE, Gulf Engineering,

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Name four general (not technical) criteria that would you consider important, when deciding upon a particular control valve?

1 Answers  

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What is the difference between Analytical instruments and other instruments?

7 Answers   Schenck,

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why we require Differential pressure?Why we use Orifice Plate?

3 Answers  

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I am using Capacitive type level transmitter for measuring oil level in a closed tank (lub oil tank). The txs range is 1500mm, and they do hunt regularly (for about 45mm), can anybody tell what could be the reason??? or any other type level tx that could be used to avoid this?

1 Answers  

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What is the Differance between Graphics And SCADA Graphics? SCADA Graphics have less access?

3 Answers   Honeywell, Thermax,

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A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

0 Answers  

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what is function of switch, and how is it work, explain with difination

0 Answers   Bapco Bahrain Petroleum Company,

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