How can measure flow in oil line?which type of transmitter is generally used?

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Any one can help me to identified, how can we interchange the device in FF

0 Answers   Ion Exchange,

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Y to use 4 to 20ma instead of 0-10v

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In your own words, would you expect an ultrasonic level device to work better in a pressure vessel with a high pressure or a strong vacuum, and why?

1 Answers  

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in my company organisation in plan to take new PLC system for replacing old relay system , for that what I/P needsd to submit to the system house of PLC supplier?

1 Answers  

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I wnat to practice more online type questions .so will you show them me to take a practice test?

1 Answers   VA Tech Wabag,

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how to measure the output of RTD given the general formula of  rtd.  

2 Answers  

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units of pressure,flow, level,temperature? principle of pressure gauge? calibration of pressure tx., level tx., temperature tx.flow tx.? description of two wire ,three wire and four wire R.T.D.? WHAT IS INPUT AND OUTPUT OF TX.? WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE? WHAT IS HOT LOOP AND COLD LOOP? WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.? PRINCIPLE AND WORKING OF HART? WHAT IS PNP AND NPN PROXY? CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH? DESCRIPTION OF FIELDBUS FOUNDATION? WORKING OF SOV.?

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How we will check whether the proximity, which we have is either NPN or PNP, if no data sheet or manual or any details is available to us ???

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what is span value and zero ? and how set ?

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Which instrument used to calibrate the pressure switch?

8 Answers  

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For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?

0 Answers  

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