how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?

0 Answers   United Phosphorus,

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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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Please explain for RS 485 & RS 232 communication

1 Answers   Honeywell,

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Explain about the leakage class of the control valves

0 Answers   CCIE,

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is here anybody who knows how to calibrate the pressure transmitter? ONLINE

5 Answers  

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WHAT IS ANNUBAR?

7 Answers  

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the 3 most common transmitter protocol being in refinery or qatar gas and aramco.

0 Answers   Shell,

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How can measure flow in oil line?which type of transmitter is generally used?

1 Answers  

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how to calibrate control valves & power cylinders & ultra sonic level transmitters

0 Answers   ABB,

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How to Calibrate Flammable gas detector in field

0 Answers  

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How many types of sensor

0 Answers   Petro Rabigh,

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how u meassure a room temp?in rtd or themo couple?

4 Answers  

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