can a control valve works without positioner?why need tunning of c/v?

4 Answers  

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How to calibrate an pressure gauge with yantrika test bench?

0 Answers  

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what is beta ratio?

3 Answers  

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what are the steps I have to deal with?

0 Answers   ONGC,

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how we calculate error in percentage when instrument calibrat

1 Answers  

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Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.

0 Answers   Honeywell, Tata Steel Limited,

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What is the solution if rotork motorised control valve showing pink Colour in dcs.

3 Answers   Bhushan Power Steel,

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what is the difference b/w normal thermocouple and skin type thermocouple?

1 Answers   Heisco,

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why 4ma show higher zero ? i have transmiter flow renge 0-1000 m3/h but 4 ma show in monitoring 200 m3/h and 20 ma show 1000 m3/h i want when 4ma show 0 m3/h and 20ma 1000m3/h

3 Answers  

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working principle of lvdt?

2 Answers  

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T.x range -0.1 to 0.2 milibar,so how much mili ampear at 0.1 milibar?

7 Answers   Sugar Factory,

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my temperature transmitter in field showing 700 degree , whereas in dcs showing 459 degree, how to resolve this?

4 Answers   ONGC,

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