ProFoss™ for flour and whole grain

ProFoss™ measures critical parameters such as ash, protein and moisture for control of incoming raw materials and in the final stages of the milling process. Accurate in-line flour analysis enables you to detect trends in your ash and moisture content, troubleshoot production malfunctions and secure final quality.

See how it works
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Continuous real time analysis. Analysis directly in the production line. Facilitates immediate process adjustments.
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Sample type

Flour and whole grain.
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Protein, moisture and ash.

Are you ready to explore what in-line analysis of flour and whole grain can do for you?

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“Improved control of the process will increase quality levels and give us a competitive edge”

Experts from the Emilio Esteban flour mill explain how frequent testing directly in the process line provides them with the knowledge to produce closer to specification and ensure a more consistent final product quality.


  • ProFoss - Protein
    ProFoss - Protein

    Trend analysis

    ProFoss™ takes direct measurements inside the process. Sampling errors and sample preparation errors can therefore be minimized to almost zero. Monitoring process variations using a trend chart and a moving average function enables the detection of process variations of a laboratory analyser. Even if one result is wrong for some reason, this has no impact as a new result will be generated a few seconds later. 

  • ProFoss integration
    ProFoss integration

    Easy integration

    ProFoss™ can easily be connected to your LIMS or ERP system.

  • ProFoss

    Dedicated sample interface

    Windows interface connected directly to the pipe
    True in-line – no bypass – reduces waste and sampling errors
    No moving parts
    No carry over effects between analyses
  • FossConnect


    FossConnect™ is a centralised networking management solution for ProFoss™ that helps you reduce your production costs and secure the quality of your products. With FossConnect™, you can manage, configure and monitor your instruments remotely from any internet-enabled computer and safeguard your data for whenever you need it.

Technical specification

ProFoss Reflection
Analysis time 5 – 50 ms / integration time; Average time per result 3 – 15 seconds
Measurement mode Reflection
Wavelength range 1100 – 1650 nm
Detector InGaAs diode array
Spectral dispersion 1.1 nm / pixel
Light source lifetime Dual lamp system MTBF = 17500 h
Software package ISIscan™ for instrument control; ISIcal™ for calibration development
Wavelength accuracy
0.5 nm
Wavelength precision < 0.02 nm
Wavelength stability

< 0.01 nm/°C

Noise < 60 micro AU
Random vibrations 0.4 grms at 10 – 150 Hz according to IEC 60068-2-64
0.4 grms at 10 – 1250 Hz according to FOSS internal standard
(more information available on request)
Temperature -5 – 40°C (23 – 104°F). With purge -5 – 65°C (23 – 149°F)
Installation in ATEX zone 0 – 40°C (32 – 104°F). With purge 0 – 65°C (32 – 149°F)
Purge air Flow rate minimum 5 l/min,
> 99.9% water free, > 99.9% free of oil and fine particles down to 0.3μm
Ambient humidity 10 – 90 % relative
Dimensions (w × h × d): 42 × 42 × 13.5 cm
(16.5 × 16.5 × 5.3 inches) + brackets to hold the unit
Weight 25 kg / 55 lbs
Cabinet 1.5 mm (lid 2.5mm) Stainless Steel EN 1.4301 (SS2333)
Protection IP69K 1) according to IEC 60529 and DIN 40050 part 9, NT ELEC 023
Industrial connectivity OPC, Profibus, Profinet, 4-20 mA
Power supply Recommended isolated or conditioned line power
100 – 240 VAC, 50 – 60 Hz, 2.0 A, 150W
1) IP6x is the highest protection for dust entering the unit. IPx9K means protected against the effect of high-pressure water and/or steam cleaning at
high temperature.

Brochures and Papers

Companies using this solution

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