Double-flange level gauge
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The capillary double-flange level gauge has a measurement range of -10 to 0; once the medium in the tower is completely drained, no more medium will enter the tower. Will the gauge show the maximum or the minimum at this time?
Personally, I think it should be as small as possible, after all, it is made based on the principle of pressure difference.
It should be the minimum value; the differential pressure transmitter outputs 4 mA.
When the medium is exhausted, it’s definitely at its minimum.
Minimum; it’s at its minimum right after you install it
Theoretically, it is the minimum, 4 Ma; what causes the migration is the capillary silicone oil pressure difference resulting from the height difference between the two flange ends.
If the double flanges are still in the installed state, 0 is displayed; if they have been removed, 100 is displayed. Under normal conditions, the double flanges cause negative migration, resulting in a positive output