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Why is the liquid ammonia tank level display unstable?

2009-03-17View Original

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My company has a 20-cubic-meter liquid ammonia storage tank, and a magnetic flap level gauge is being used for level measurement. The level indicated by this gauge is very unstable; it shows a level that is much lower than the actual level. Experts, please help me understand why this is happening. Thank you.
Reply #22009-03-17
Then check the position of the float ball and try it with an iron tool
Reply #32009-03-19
I’m not sure how the actual liquid level mentioned by LZ is measured. With magnetic flap level gauges, the liquid level can be unstable; this may be caused by fluctuations in temperature or pressure, but the difference shouldn’t be very large. Also, if the actual liquid level is known, is it still necessary to use this level gauge?

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