What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 Answers  

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procedure to commission a drum level transmitter

1 Answers  

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please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...

0 Answers   HPCL,

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how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

0 Answers  

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A differential transmitter is calibrated to measure the flow of lquied, explain what wil happen if the fluid is not pure but contains some bubble?

2 Answers  

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why we use npn sensor in vibration monitoring system

1 Answers  

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how to commission furnace ( water heater)

0 Answers   Petrofac,

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If any control valve create hunting problem, what is the possible reason and solution?

6 Answers  

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why we use negative 24vdc to a proximeter

4 Answers   KNPC,

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TCD Principle

1 Answers  

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what is difference between total flow and flow rate in general ?? explain it with daily life example.

3 Answers   GNFC,

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why we are maintain the gap voltage in vibration probe when installing time can explain me?

1 Answers   CIL,

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