What should be the ideal tapping location for pressure differential transmitter for liquid service. If the tapping taken from the top of the pipe then PDIT will work properly or not. If PDIT do not work properly then what minimum corrective action should be taken in order to solve wrong tapping locations.

1 Answers  

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A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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why the output sugnal is 4-20 ma and not 4-25 ma?

5 Answers  

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Yokogawa dcs nodes advantages?

0 Answers   Petrochemicals,

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What is meant by GAP VOLTAGE, in vibration measurement. Normally how much GAP VOLTAGE is set and state the reason.

3 Answers   ADMA OPCO,

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What is a PID controller and how can it to applied to our everyday life?

4 Answers  

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why use squareroot in flow measurment by dp transmitter?

4 Answers  

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Lists Different types of Tappings.

4 Answers   TCS,

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Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

0 Answers   Chagalesh Consulting Engineers,

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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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Explain the working principle of variable frequency drive?

0 Answers   ABB,

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what is the difference between Feedback controller and Feed forward controller. and when it is to be used.

3 Answers  

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