Working principle capacitance type level transmitter

3 Answers  

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Why Current(Ampere) is chosen as Fundamental Quanties not Charge(coulomb) ?

3 Answers  

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What are different types of valves?

0 Answers  

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IF PLC POWER FAILURE THEN WHAT HAPPEN?

2 Answers   IFFCO,

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how ranges is decided for drum level or dearator level,in my pplant i have seen for boiler drum range is -1000 to 1000mmwc, while for dearator -2000 to 0 mmwc ,why they decided to take this range ?

2 Answers  

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Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

0 Answers  

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What is open loop checking and close loop checking

1 Answers   BARC, NTPC,

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What are de-saturators?

0 Answers  

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how bolometer is used in temperature measurement ??

1 Answers  

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what is the difference between SCADA and DCS?

5 Answers   ACC,

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If an Instrument has 550 ohm internal resistance and the cable used for that instrument is 0.5 ohm per meter resistance. If the voltage is 12volt.How much length cable can be used? Please tell me its Calculation formula.

5 Answers   MOL,

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Why we use 250 ohm resister in series hart communicator?

3 Answers   Thermax,

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