Process Mixing Equipment

Haffmans Non-Invasive CO2 Measurement


The Haffmans CO2-Selector provides an advanced solution for non-invasive CO2 measurement in the filled package. Using an innovative laser technology, the Haffmans CO2-Selector measures the partial CO2 pressure and total pressure of the headspace, and accurately determines the dissolved CO2content in the package. Piercing is not required to perform the measurement. The bottle is not destructed and no product is lost.


    • High-precision laser technology
    • One instrument for a wide range of carbonated beverages
    • Suitable for all bottle closures including swing top, natural cork, sport cap
    • Selective and non-selective CO2 values
    • Non-invasive CO2 meausrement

• Safe, non-contact procedure

    • No product loss
    • Fast, repeatable measurement
    • Temperature compensated results
    • No consumables or wear parts
    • Multi-lingual operator interface
    • Maintenance-free

The Haffmans CO2-Selector’s laser transmitter sends a beam through the headspace of the package to a receiver. At a particular wavelength, the CO2 molecules in the headspace absorb the infrared light of the laser. Based on the width of the absorption lines and the intensity, the total pressure and the partial CO2 pressure in the package is determined. Other gases present in the headspace – such as oxygen (O2), nitrogen (N2) or hydrogen (H2) – do not have an impact on the partial CO2 pressure, enabling a CO2 selective measurement. In addition, the measurement is independent of the color or material of the bottle.

Only a few minutes are required to prepare the package by shaking it to equilibrium and performing the measurement. The procedure is simple and repeatable, which allows for an unlimited number of CO2 measurements to be conducted on the same package.

  • Laboratory
  • Filling department