Haffmans Portable Optical O2 / TPO Meter o-DGM

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Fast, accurate O2 measurement—anywhere in your brewery

The Haffmans O2 Gehaltementer, type o-DGM  is a portable, high-precision meter for measuring dissolved oxygen (DO) and Total Package Oxygen (TPO) in beer and other beverages.

Designed for brewers who need reliable, on-the-spot quality control, it uses optical O₂ technology for fast response times and stable readings—without the need for frequent calibration. 

BENEFITS

  • Portable and flexible: Use it at-line or in the lab—measure directly from tanks, kegs, bottles, or cans.
  • High accuracy: Optical sensor delivers precise results with minimal drift.
  • Low maintenance: No regular calibration required.
  • TPO measurement: Based on the Uhlig method for reliable package oxygen analysis.
  • CO₂ gas check: Also measures CO₂ gas purity, adding extra value.
  • Easy data handling: Export results to your PC via interface cable.

HOW IT WORKS

The o-DGM is available in two measuring ranges:

  • Low measuring range (LHO) for accurate DO measurement of beverages < 2,000 ppb (e.g., beer and deaerated water).
  • Wide measuring range (WLO) for accurate DO measurement of beverages < 45 mg/l (e.g., wort, soft drinks, and non-deaerated water).

Three measurement modes are available:

  • Single sample
  • Continuous O2 measurement from the production process.
  • TPO measurement from a package.

The data can be securely transferred to a PC using the interface cable. 

FIELDS OF APPLICATION

  • At-line: Sample directly from process lines, vessels, or kegs during production.
  • In the lab: Analyze bottled or canned samples post-packaging.

Find the right instrument for your needs with myHaffmans

myHaffmans is our quality control selection tool, designed to help you choose the right instrument for your specific needs.

Try it out for yourself! 

DOWNLOADS

 TitleDownload PDF
Product LeafletHaffmans o-DGMDownload
Product LeafletHaffmans Portable Optical O2/TPO Meter - o-DGM (French)Download
Product LeafletHaffmans Portable Optical O2/TPO Meter - o-DGM (Portuguese)Download
Product LeafletHaffmans Portable Optical O2/TPO Meter - o-DGM (Spanish)Download
Case StudyBolten BreweryDownload
Product Overview BrochureHaffmans Quality Control EquipmentDownload
Technical DocumentationRequest Product-Specific Technical DocumentationSend Us Your Request

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