Problems with the gas-phase line flow meter in liquefied gas cylinders
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I have a question: On the gas line of the liquefied gas tank, there is a mass flow meter. When there is no flow, the density displayed on the meter is 0.015 g/cm3; when there is flow, the density shown is 0.036 g/cm3. Is the density value of the mass flow meter a fixed value that has been preset within the meter itself? Does the density still change continuously in the flow meter? Is the density set by the manufacturer or by the instrument technician at the factory? A bit wordy, thanks
The density is measured by the flow meter; it displays the value as it is measured, with no need for any settings.
The flow rate of the flow meter is 0, so why is there still a density value displayed?
It shows 0 at low density; low-flow cutoff must have been set there. When the medium is filled, close both the front and back ends and set a zero point.
I don’t understand what you mean. Density is measured experimentally; as long as there is a medium at the location of the flow meter sensor, it can measure it. What does that have to do with flow rate? Unless you empty it, it cannot be measured without a medium