Answer / ashish namdev, bina refinery [

all calibration do with a reference. when reference will not
available any calibration can't be done.

Answer / am i nuts?

The above answer is correct. One needs to have a master.

how to calibrate the radar transmitter for measuring the exact tank level if tank is having agitator moving continiously because due to agitator tank surface level will vary every time.

2 Answers  

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Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

0 Answers  

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WHAT DO WE MEANT BY INSTRUMENT MAINTENANCE IN SOFTWARE SIDE.

1 Answers  

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Guy's need your support,I want to measure closed tank level which is under vacuum -630mmHg using DP Transmitter, tank fluid density 1.38, Tank height is 7ft

4 Answers   icl,

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How to find out turn down ratio of Pressure transmitter?

1 Answers  

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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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i want all model questions paper for robert bosch

1 Answers   Bosch, Patni,

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Where & Why we are using SURGE PROTECTION ?

4 Answers   IOCL,

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what are the following documents comes under loopchecking

1 Answers   Heisco,

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what does a positioner in control valve ?

11 Answers  

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In RS 500 SLC 5/03 input change one module card to another card, plz. give steps clearly.

0 Answers   BHL,

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plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

0 Answers   MahaGenco,

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