why we use 250 ohms across HART CALIBRATOR DURING CALIBRATION OF TRANSMITTER

4 Answers  

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What is the working principle of oxygen analyzers(zirconium oxide type) used in CFBC boilers?

3 Answers   Bajaj, Kohinoor, Wartsila,

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how to calibrate a capillary type level transmitter for a closed tank in field? also what is the procedure for commissioning a capillary level transmitter for a closed tank?

2 Answers  

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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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WHAT IS ANNUBAR?

7 Answers  

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Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?

0 Answers  

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what are the programming languages used in dcs

7 Answers  

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what is insdustrial vibration.who it works. give atleast 2 types of insdustrial vibration

0 Answers  

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What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller

0 Answers  

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how can be connected thermocouple in series?what is the need?

2 Answers   Hindalco,

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what is IEC code in cables & how to selecting cables?

0 Answers   ROS,

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WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

0 Answers  

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