CO2 and O2 Measurement Combined 

Anton Paar now unveils its new range of instruments for dissolved gas measurement both in the lab and at the production line. 

The range includes CarboQC for measuring dissolved CO₂, CboxQC for measuring both dissolved oxygen and CO₂ in one cycle and OxyQC for measuring dissolved O₂. 

The At-line versions, CarboQC At-line, CboxQC At-line and OxyQC, are designed for portable measurement from process lines, tanks, kegs or casks. The built-in battery ensures up to 10 hours of at-line operation and a special CO₂ and O₂ Data Logger function allows continuous measurement at defined intervals, with a memory capacity of up to 500 results including timestamp and sample ID.  

The stand-alone CarboQC, CboxQC and OxyQC models for the laboratory provide simple measurement procedures. The beverage sample is transferred to the measuring chamber without loss of CO₂ and O₂ using the connected Anton Paar Piercing and Filling Device. Both models accommodate small package sizes: measurement is carried out on as little as 100mL sample. By measuring dissolved oxygen, CboxQC also calculates the Total Package Oxygen value via Anton Paar's free software AP-SoftPrint or by connecting to a DMA Generation M system. 

The carbonation meters use the Multiple Volume Expansion method patented by Anton Paar for CO₂ measurement. This is a selective method which is not influenced by other dissolved gases in the beverage such as air or nitrogen. The results achieve a CO₂ repeatability of up to 0.005 vol. 

The new reliable optochemical oxygen sensor used in CboxQC, CboxQC At-line and OxyQC has an O₂ sensor repeatability of ±2 ppb. This pressure-resistant, high-resolution optical sensor has a long working life and requires minimal maintenance. The fast response time and ideal temperature behaviour of the oxygen sensor allow excellent measurement stability within a few seconds, even when measuring cold samples. 

To make life easier, the new series’ user interface is clearly arranged and the menu ensures intuitive navigation. Preprogrammed methods and measuring units, automatic service reminders, numerous wizard features and periodical checks help simplify everyday work.