how the 4 to 20 mA signal goes to any controller/indicator,and what is the role of voltage ,12/24 and how to do connection of it, in controller.

1 Answers  

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Manipulation of dead wt. tester double piston type.

0 Answers   CCIE,

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What is the different between of rtd and thermocouple ?

6 Answers  

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what is the difference between PLC & DCS

17 Answers   L&T,

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How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

0 Answers   CCIE,

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The pressure class rating (such as 150 lb, 300 lb, etc.) of a line appears in the form of ________________ in the Line Number (or Line Designation) on a P&ID

1 Answers  

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detail of mass flow meter pricipal

0 Answers  

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what is commissioning & pre commissioning , explain with difination

2 Answers   Bapco Bahrain Petroleum Company, Shell,

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I need to know steps to Calibration Valve Guard......

0 Answers  

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Draw block digram for well head from well to shipping pump?

0 Answers  

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How many interlocks at turbine? Plz explain briefly

0 Answers   MRPL Mangalore Refinery and Petrochemicals Limited,

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how can I install "operating system " in may HART communicator? It is damaged, and it doesn't boot up.

1 Answers   ARPC,

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