Answer / bunny

A pneumatic control system is a control system consists of
pneumatic instruments.i.e,pneumatic transmitters,pneumatic
controlers,pneumatic actuators,pneumatic final control
elements etc.These instruments are working basically with
pneumatic signals(air pressure signals).Unlike an
electronic control system,which works on elecric signals
(voltage,current etc),a pneumatic controls system utilizes
air pressure signals for the communication.Tubes are used
for the transmission of these signals like wires and cables
in an electronic control system.

what is working principle of vibration prob

3 Answers  

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How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error

2 Answers  

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please someone tell me what is function of vibration sencer and how many types and how to control viberation.please. my id is jimmykhan077@gmail.com

0 Answers  

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Why do we floating DC in DC system.

0 Answers  

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Dead weight tester & comparator for calibration , which is more accurate , what is the application.

1 Answers   Bapco Bahrain Petroleum Company,

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What is i/e or o/p transmitter(ma/v)?

1 Answers   Emco,

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While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.

1 Answers  

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What is difference between Isolator and Barrier ?

1 Answers  

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What is DCS?

5 Answers   Adani,

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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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State some of balance principle’ advantages?

0 Answers  

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What is the live zero and dead zero

2 Answers   Samsung,

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