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How to connect PLC to DCS ?

2 Answers   Alkyl Amines,

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in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 Answers  

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what is SIL 1 2 3

0 Answers   KOC,

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I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?

2 Answers  

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An atmospheric storage tank has a diameter of 20 m and a height of 8m.It is half-full of liquid with the remainder of the space containing air normally at atmospheric pressure. If the connection to atmosphere is accidentally closed off and 10 cubic m of liquid removed, what happens to the internal pressure of the tank? What are the possible consequences for the tank?

1 Answers  

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why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

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suppose, after calibrating a transmitter we fixed it in a process line. At live zero condition the Tx shows 4.5 mA. what should we do to make the Tx show 4 mA? If we adjust zero, will it not affect the calibration?

4 Answers   ABG Shipyard,

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Gas equation

0 Answers   CCIE,

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What is offset in a control system.

2 Answers   Sabic,

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can anybody tel me how a vfd or any field instrument communicates/interface with plc/scada/cs.

0 Answers   Honeywell,

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what is the imbustion control loop

0 Answers   Manali Sugars,

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how to calibrate the temprature transmitter MURCREYtype and thermocouple input type.

1 Answers   Shree Cement,

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