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Dear Freind, If you are talking about hotwell in power plant application, then it is always recommended to use displacer or Radar type level transmitter. DP type LT is not recommended since it could malfunction in vacuume condition.
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How do you calibrate level switch?
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Metres measure length/height, kilograms measure mass (which many people call weight). Because they measure different things, you cannot convert from one to the other.
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Why you use minus to zero range in drum level transmitter?
I refer to Steam Boiler drum level. It is actually - to some positive figure is the range. Generally the boiler level is maintained at mid point that is zero. The transmistter is differential type. (DP type) If the transmitter is with a specified signal out put of 4-20 mA, it sends out 4 mA at lowest level and 20 mA at highest level. At mid level zero it sends out 12 mA. Differential pressure is highest at actual lowest level and lowest at actual highest level of the drum. By keeping negative to positive range there is fair amount of analog signal on lower and higher side of the drum.
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What is a feedwater tank in Naval vessels?
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What did they used to measure to be sure that every stone was level?
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What did they use to measure to be sure that every stone was level?
An air-bubble level.
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What do you use to measure a pond?
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What is the unit used to measure sound level?
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