The inline density measurement of liquids is now possible with the Liquiphant M sensor. In food and beverage applications it is claimed that this density measuring sensor can reduce material wastage, increase product quality and optimise control of the process.
Endress+Hauser has adapted the ‘vibrating fork’ technology to enable the accurate and in situ measurement of liquid density. The resonant frequency of the Liquiphant M’s vibrating fork changes with the varying densities of the materials in which it is placed. This change is used to compute the density or concentration of the medium resulting in instantaneous, repeatable density measurements.
Sugar is widely used in food processing and accurately measuring its content (degrees Brix) is critical for cost efficiency and product quality. The associated Liquiphant FML621 density calculator displays this information in measurements relevant to the process, °Brix for sugar, °Baume for salts, °Plato for brewing or any other density derived units specific to an application.
Liquiplant M offers a cost-effective alternative to laboratory testing and provides reliable inline density measurement at a glance. This allows immediate adjustments to the process and increases plant availability, improves process control and reduces material wastage.
The density measurement system can be used across process industries for concentration measurement, quality statements and purity indications or even as a basic variable in calculations and simulations.
A Liquiphant device can be used as a dual-purpose probe — to measure density and monitor liquid levels. A typical application is dry-run protection where a density measuring probe switches over to measure level at the end of a process and advises the operator to stop the pump once the vessel is empty.
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