ProFoss™ is installed in-line for measuring content of fat, protein and moisture in dairy, meat, grain, feed & flour transported in pipe as well as animal by-products; the results can be used for real-time monitoring and adjustment of the production process.

System description
The ProFoss™ analyser is available with dedicated interfaces based on reflectance or transmittance technology whichever is best suited for each application area. Measurements are done directly on the moving sample in the process stream. A high-intensity dual-lamp light source illuminates the sample directly or through an optical fiber. The light interacts with the sample and the reflected or transmitted light is measured by the diode array sensor. The backup lamp in the dual lamp system secures uptime and analytical accuracy is unchanged even after switching to a new lamp.
The complete wavelength range is measured instantaneously enabling measurements also on fast moving samples with high accuracy. Calibrations are transferable between units ensuring easy expansion to other measurement points. Integration to process regulations systems can be done through the FOSS OPC interface.

Dedicated sample interfaces
Window reflectance:
In-line analysis of paste, granulates, powdered products etc in pipes or transport systems without bypass can be performed. The products pass over the interface window. The window reflection interface can easily be installed into the production line using standard GEA Tuchenhagen flowcells or welding an interface flange into the wall of the pipe/transport system.
Temperature: 150°C (302°F)
Pressure: Vacuum > 1 torr, Pressure < 3000 PSI
Lens: Sapphire; Diameter 45 mm, thickness 12 mm, with food grade EPDM O-ring seal
Hygiene: USDA, Dairy
Pipe flowcells: Fits directly into GEA Tuchenhagen Varinline Access units(DN40 to DN150 with 68 mm opening)
Transport system: Stainless steel welding flange

Direct light:
In-line analysis of products where direct contact with the product is not a technically feasible solution i.e. product transported on a conveyer belt.
Lens: Sapphire; Diameter 45 mm, thickness 12 mm, with food grade EPDM O-ring seal

Powder probe:
In line analysis of fine powder like dairy powders etc. The powder probe interface can easily be installed into a hopper or pipe with free falling product. The probe has no moving parts. The probe is automatically cleaned with compressed air before each analysis.
Material: Teflon (PCTFE)

Lateral transmittance:
In line analysis of slurries and viscous products such as WPC, Cream Cheese, Mozarella etc. The Lateral transmittance probe does not restrict the flow rate of the product and can easily be installed in the production line using a standard GEA Tuchenhagen flowcell for installation in a pipe or by welding an interface flange into the wall of a tank.
Materials: Stainless steel
Lens: Sapphire, 5 mm thick, with food grade EPDM O-ring seal.

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