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FOSS - Dairy Powder Analyzer - NIRS™ DS2500

The NIRS™ DS2500 Dairy Powder Analyser helps you to improve yield in your dairy powder production. Designed for use in the laboratory or at the production line, the NIRS™ DS2500 is a practical quality control tool ideal for routine production control and monitoring of final product quality.


Routine production control. Monitoring of final product quality. More yield with reduced energy.

Sample type

Dairy powders and ice-cream mix.


Fat, protein, moisture, ash, lactose, acidity and more.

Technical specification

Dimensions (WxDxH) 375 x 490 300 mm
Weight 27 kg
Degree of protection IP 65
Measurement mode Reflectance or transflectance (for liquids)
Wavelength range 400 – 2500
Detector Silicon (400 – 1100 nm), lead sulfide (1100 – 2500 nm)
Optical bandwidth 8.75 +-0.1 nm
Spectral resolution 0.5 nm
Number of data points 4200
Absorbance range Up to 2 AU
Analysis time <1 minute*
Wavelength accuracy <0.05 nm
Wavelength precision (based on a single analyser) Wavelength precision (based on a single analyser)
<0.005 nm <0.005 nm
Wavelength precision instrument-to-instrument (based on a group of analysers) <0.02 nm
Photometric noise**
400 – 700 nm < 50 micro au 400 – 700 nm < 50 micro au
700 – 2500 nm < 20 micro au 700 – 2500 nm < 20 micro au

**Noise = RMS for 10 co-added, 10 second scans

Key features


FossConnect™ is a centralised networking management solution for the NIRS™ DS2500 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.


FossAssure™ is a NIRS™ DS2500 digital service designed to reduce product waste, secure brand protection and increase profitability by ensuring the quality and precision of your analytical results. Besides, FossAssure™ services will also improve instrument uptime and reduce production costs by optimising the operation and the performance of your instruments.

NIR technology

NIR (Near Infrared) reflectance method yields accurate representative analyses for solid or semi-solid dairy products. Plus, analysis can be easily replicated.

Versatility and stability across the full spectral range from 400 to 2500 nm.

The next step in dairy powder analysis with NIR

  • Biopharmaceutical and Biotechnology
  • Education & Academics
  • Environmental
  • Food & Beverage
  • Pharmaceutical
Foss Analytical

FOSS creates end-to-end solutions that secure and improve food quality. From raw material to finished product. Our analysis instruments refine measurements into information management that enables businesses to run intelligent data-driven productions with less waste and bigger yields. Controlling cost and quality across all sectors and value chains, we help food and agricultural producers limit the number of human errors, scale their business faster and reduce manual labor as well as labor costs. We call it analytics beyond measure.

We cover these food and agricultural industries: Dairy, Feed and Forage, Grain, Flour Milling & Oilseed Processing, Laboratories, Meat, Raw Milk Testing and Wine.

Over the last 60 years, we have made it our business to define the standard of analytical solutions for the food and agricultural industry. We pioneered advanced analysis for the challenging production environments in the 1960’s, and we were the first to integrate chemical composition analysis in process lines. Now our resolve and ambition have also made us the international benchmark in the field of chemometrics and real time analytics.