ThePortLion
Member
Hi. I'm curious as to how to measure, reasonably accurately,
the level in a silo for a range of liquids of different densities. The instrument being used is a pressure sensor at the
base of the silo. (10 meters of head = 1 bar {Water})
I take the 4-20mA signal and scale it (0 - 45000 Ltrs). The problem is that inaccuracy is occurring as the range of liquids the silo holds vary in density (Specific gravity from 0.9 to 1.2 compared to water which is 1.0).
Basically all i need to know is how to go about calculatiing this. I know there are instruments out there that
handle this kind of scenario but I have to stick with what I got.Recession and all that! The silo is cooled so temperature does not vary much. Any help would be appreciated.
Thanks in advance
the level in a silo for a range of liquids of different densities. The instrument being used is a pressure sensor at the
base of the silo. (10 meters of head = 1 bar {Water})
I take the 4-20mA signal and scale it (0 - 45000 Ltrs). The problem is that inaccuracy is occurring as the range of liquids the silo holds vary in density (Specific gravity from 0.9 to 1.2 compared to water which is 1.0).
Basically all i need to know is how to go about calculatiing this. I know there are instruments out there that
handle this kind of scenario but I have to stick with what I got.Recession and all that! The silo is cooled so temperature does not vary much. Any help would be appreciated.
Thanks in advance