Answer / m arif

1 local indicator are rota meter , m3 ltr and auther rate flow
show to line in field.
2flow meter (element)are in transmitter show to control room,
and local field room.

Answer / ramesh dham

Flow Indicator/ Totalizer Not just a digital indicator but it is a flow calculator. In Flow Totalizer three inputs are taken (DP, Pressure & Temperature).It make density correction for volumetric flow to make them mass flow.
Local Indicator for just display of Flow can be of any digital indicator with 4-20 mA input.

Explain , how timer based pneumatic control valve will work ?

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hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

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what is absolute pressure, gauge pressure and atmospheric pressure?

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