Answer / pavan wagh

At high pressure in pressurized vessel ultrasonic signal gets suppressed substantially ,same is the case with strong vacuum where medium (air) of signal transfer is absent.
In both cases DP transmitter is the best choice for good accuracy. For level measurement with DP transmitter density compensation is essential,as liquid (water) density changes at high pressure and high temperature.

How many types of sensor

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Can you explain drawbacks between P,I,D & PID controller

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Why only negative 24 vdc supply give in vibration measuring system.

6 Answers  

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What is the load line in control valve?

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A pressure Tx accuracy is 0.2%. Signal o/p is 4-20ma.span is 16 Ma.how many deviate the o/p then calibration needed

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WHAT IS THIS INSTRUMENTATION?

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can we control operation of PLC from operator station?

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suppose there is gas flow meter I want to know weather meter calibration is done at high pressure or low pressure? pls justify.

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why the supply frequency used in America is 60Hz while that used in India is 50Hz?,

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0 Answers  

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what is function of ESD , and how is it work, explain with difination

1 Answers   Bapco Bahrain Petroleum Company, BMB,

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