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

in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 Answers  

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hw to calibration a control valve?

3 Answers  

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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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what is span adjusment of transmitter? what is the function of positioner/

2 Answers   Kent,

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What is electronics?

6 Answers   ITC Infotech,

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2 Answers   Samsung,

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2 Answers   PCIL,

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5 Answers  

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Hi i am aneesh, done btech in applied electronics & instrumentatiin. And then i took mba in finance & marketing.After that i got placement in finance co and worked there for 3.5 yrs.Now i wanted to come back to engineering job.But without engg experience, i may not able to find an opening.i have done a course related to flow meters and ite calibrations. Kindly suggest where should i try to get a job?

0 Answers   Qatar Petroleums,

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in differential pressure transmitter,min&max pressure range for hp&lp

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how u meassure a room temp?in rtd or themo couple?

4 Answers  

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