what is the meaning of potential free contact. difference between dry and wet contact?

6 Answers   GAIL,

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

8 Answers   Hindalco,

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which gas or which liquid is filled in capillary of dial type temperature indicators on power transformers

2 Answers  

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1)why we are using mostly Ultrasonic Flow meters to measure flow, rather than Radar waves? 2)why we are using Ultrasonic waves and Radar waves to measure the Level?

1 Answers   NTPC,

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What is NODE in DCS?

2 Answers  

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How does temperature bath work? How does coil gets heated only by applying some current?

0 Answers   Process Control Technologies,

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why we are using 4-20ma why cant we use 4-40ma

3 Answers  

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EXPLAIN NETWORK COMMUNICATION ON DCS?

0 Answers  

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why 4-20 mA in covection system?

3 Answers  

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Why not come out analog output in ABB EL3020 when display show correct value

0 Answers  

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Intools training

1 Answers  

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can any one give me the cost price of yokogawa & rosemount transmitters

4 Answers  

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