why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

0 Answers  

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how u measure flow?orifice measurement?why all ft in square root?

1 Answers  

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Close loop and open loop.

3 Answers   CCIE,

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what are level of automation & how these are distinguished ?

3 Answers  

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who discoverd ohms law?

6 Answers   HPCL, Patni,

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In thermocouple could we use the lug for termination or not,Thermocouple is any time,I am currently concerned with K type.please let me know if anybody know

4 Answers   Saudi Aramco Shell Refinery Company SASREF,

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why generation of syncronized generator increases when frequency of grid is less then 50Hz & generation decreases when grid frequency goes up from 50 Hz, as comparision with set value entered in govering panel?

1 Answers  

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difference between repeatability and reproductability

1 Answers   IOCL,

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What is the constant voltage unit?

0 Answers  

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which one is best profibus or RS485 for communication?

2 Answers   Honeywell,

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i am confusing about differential pressure transmitter as i seen so many DPTs in different ranges how can we calculate level and flow with mmh20 plz tel me

1 Answers  

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Why 4ma - 20ma signal used in instrumentation??

5 Answers  

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