Answer / oliver

in postioner there are span and zero setting. with the help of span n zero we can adjust it.
if your valve is not fully close than use zero setting, and if it is not fully open than use span setting.

Answer / subhendu paul

Ur questions is not clear. For open the valve is clear BT how or which pressure required or used to closed. Plzz sir. Clear the my confusion

Answer / ajay

First the question is not correct. for air to open if given 100% air, then valve should be fully open, not close ...clear your question

During the design and engineering of a process plant, a good designer should plan for ____________, ___________ and ____________ aspects of the plant

1 Answers  

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what is the minimum power (P=VI)to produce a spark?

0 Answers  

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Please explain for RS 485 & RS 232 communication

1 Answers   Honeywell,

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how can we calibrate the differential pressure transmitter by using HART communicator

8 Answers   Hindalco,

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Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

0 Answers  

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What is maintenance planning?

3 Answers   Qatar Airlines,

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Explain why plc require in analog input 4-20amp & 0-10 volt?

0 Answers  

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is any standard angle for thermowell mounting for horizontal and vertical pipe lines?

3 Answers  

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i want to calibrate a transmitter in the range of -100 to 300 mmwc. How it is possible to measure -100 to 300?.

2 Answers   Hindalco,

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Which instrument used to calibrate the pressure switch?

8 Answers  

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what is the Difference betwee the Hart and smart series Pressure transmitter

1 Answers   HPCL Mittal Pipelines Limited HMEL, Kastech Instrumentation,

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What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

0 Answers   Hamsco,

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