what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly

2 Answers  

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Is there’s power on the bus (if so, state whether on the signal bus, or on a separate in the following: a) HART b) Profibus DP c) Profibus PA d) DeviceNet e) Foundation Fieldbus

1 Answers   EIT,

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why most of the DP transmitters using maximum range as 0-2500mmwc?why not 1000 2000 3000 4000mmwc

2 Answers   SPIC, TNPL,

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Hook up resistance decade box to temp.transmitter.

0 Answers   CCIE,

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dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

0 Answers   CPL,

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FOR CO/CO2/O2/NOX applications which of the following manufature is best? and what is the basic principle of gas analysers? ABB/YOKOGAWA/EMERSON/SIEMENS/TELEDYNE/THERMOFISHER

4 Answers  

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Reasons for using current as signal

1 Answers  

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what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

1 Answers  

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what is control valve input and out put

10 Answers   Nirma,

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How does milli volt is created in themocouple?

2 Answers   Jaypee,

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when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

1 Answers  

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why I need valve guard and whats different between guard and positioner ??

0 Answers  

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