Why do we use 24V DC supply in instrumentation? What are its merits and demerits??

1 Answers   JSW, MJPRU,

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Where do we consider the pressure in mbar & where do we consider the pressure in bar & why is it so ?

2 Answers   BOC, Jindal Steel and Power,

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please give me the syllabus and sample questions if possible for Instrumentation for Vizag Steel plant MT (Trainee) 2009 exam

1 Answers   Pedvak, Steel Plant, Vizag Steel,

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Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

0 Answers  

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You are looking at the RS-485-side of an RS-232/RS-485 converter and the power supply voltage for the converter is +5V. Under idle conditions (no transmission), and assuming you have enabled the RS-485 output: what would you expect at: (a) Output A measured against output B (b) Output A measured against ground (c) Output B measured against ground

1 Answers   EIT,

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principle of dead weight tester ?

0 Answers  

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how to do dynolab wind speed sensor loop test, how to simulate value,i have simulate mA 4-20mA but not responding in DCS faceplate, please kindly advice me any one.

0 Answers  

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Possible cause of IOP alarm in a DP transmitter: a: IOP-minimum b: IOP-Maximum

4 Answers  

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Could anybody tell how much amps will a single input to plc will consume?

1 Answers  

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How flow control valve is working with pnuematic positioner and I/P convreter from command is given from remote

1 Answers   Ecil, GAIL,

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what is difference between pressure,flow and level control valve.

3 Answers  

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What are the uses of orifice plates?

0 Answers  

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