Answer / dipankar kakati

flow is directly proportional to differential pressure.

How can you differentiate Instrumentation to Electrical?

1 Answers  

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Dear sir i m presently working in power plant nd my question is if any pump give flow 18tph then how would i know that how much range flow tx installed their flow line for flow measurement plz give me ans

1 Answers   HPSL, Infotech,

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WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT? 1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE. 2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100% OUTPUT. 3)LINEARITY PRBS. 4)1005 O/p IS CORRECT BUT ZEO POINT IS WRONG.

1 Answers   Reliance,

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1. What means HART communicator / where it is used / how to use it? 2. Types of Thermocouples and its temperature ranges / output of thermocouple? 3. Types of RTDs and its temperature ranges / output of RTD? 4. Idea about Temperature Transmitters? 5. Difference between Analog and Digital signals? 6. Difference between “2 wire” and “4 wire” system / instruments? 7. Difference between “Potential” and “Potential free” contact? 8. Types of flow meters / transmitters? 9. Types of level transmitters? 10. Difference between “Power/Control” cable and “Instrument” cable? 11. What means “shield” and “screen” in cables / how it is useful? 12. Draw a schematic of closed loop circuit of flow / level / pressure / temperature? 13. Idea about calibration of Control valve / positioned / I/P? 14. How to bypass a digital/analog signal in PLC/DCS by hardwire and software?

6 Answers   JSL,

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in rotark mov in display err msg showing how to remove the error

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What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 Answers  

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why we are maintain the gap voltage in vibration probe when installing time can explain me?

1 Answers   CIL,

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What is the procedure of calibration of Load cell?

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What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?

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what is piezo electric transducer?its principle?

2 Answers  

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please send me gail format if u have... please help me if u can...

1 Answers  

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Explain working principle of lvdt?

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