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

6 Answers   GAIL,

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Explain how thw analog to digital converter works with the circuit diagram

0 Answers  

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whey we conect ammeter in series and voltmeter in parallel in circuit

1 Answers  

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how to check control valve was passing?how to check online?

3 Answers  

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In split range control, we will control 2 outputs with time interval. Eg :(with 4-20 ma signal, for 4-12 ma we are operating one control instrument like valve & for 12-20ma we are operating other control instrumet (other valve). If we get a signal of 15ma to first instrument (Valve 1), what will happened to the first valve, and if we get signal above 20 ma to 2 valve what will happened ?

3 Answers  

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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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can anyone tell me about the basic concepts to consider before to start a PLC panel wiring

0 Answers   ABB,

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what is meant by Hydroelectric powerplant?

0 Answers  

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What is the procedure of calibration of Load cell?

0 Answers  

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how magentic flow tx. vortex flow tx & ultrasonic flow tx works and its prinicle?its callibtration prosedure?

1 Answers  

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What are the most frequent problem faces with Vortex flow meter?

1 Answers  

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Programmable Logic control.

0 Answers   CCIE, NCVT,

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