how can calibrate vacume trasmitter by HART COMMUNICATOR ?

3 Answers   Bajaj, IMECO,

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what is loop folder?

1 Answers   Bapco Bahrain Petroleum Company, Hyundai,

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what is plc? Basic function of plc? application of plc in industry? What is lader diagram ? What is the main advantage to use plc in industry?

15 Answers   Schlumberger,

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What is DCS?

5 Answers   Adani,

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What are the different modes of a contollogix family processor? How they work?

3 Answers   Honeywell, Siemens,

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please explain about actuator action? direct action & return action ?

1 Answers  

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What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

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Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

0 Answers   Essar, Sail,

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How does a redundant controller comes in line when the main controller fails??

3 Answers   Yokogawa,

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

2 Answers  

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what do we mean by hook up drawing. what r the information we get from it?

7 Answers   Reliance,

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In 2 wire transmitter 1 wire is used for power and other is used for signal( 4-20)ma In 4 wire transmitter 2 wires are used for power and 2 wires are used for signal (4-20)ma . but my question is "what is the criteria or parameters we have to consider while selecting these transmitters for eg( distance, safety zones etc.

1 Answers  

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