Answer / narendra

u can connect diode & check it by providing power supply,as it will not damage the the solenoid even polarity is changed.

What different types of problems do occur while doing the loop checking? and please explain in detail or mail me at kadam.aniket143@gmail.com

1 Answers   Operational Energy Group, Process Control Technologies,

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if tx. dp increase or decrese what happend in the reading

1 Answers   BSP,

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explain Cascade Control strategy with the help of a block diagram. also exlain its working in a distillation column

2 Answers   ABB, Sabic,

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To calculate temperature, why we multiply 25 with mV?

2 Answers  

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Difference between ultra sonic flow meter

0 Answers  

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Thermocouple is a transducer but rtd is not transducer why? Both taking heat as a input and giving mv

7 Answers  

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in a electronic controller why we are using 250 ohm resistance in input signal?is i/p is necessary in control valve when we are using electronic controller give details?

3 Answers   IOCL,

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Dead weight tester & comparator for calibration , which is more accurate , what is the application.

1 Answers   Bapco Bahrain Petroleum Company,

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If range of 3-15 psi, a multiplying relay with a 1:2 ratio would give what output pressure for 6 psi input?

1 Answers  

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how to connect the HART protocal with control valves

1 Answers  

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suppose, after calibrating a transmitter we fixed it in a process line. At live zero condition the Tx shows 4.5 mA. what should we do to make the Tx show 4 mA? If we adjust zero, will it not affect the calibration?

4 Answers   ABG Shipyard,

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Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?

1 Answers  

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