Measuring the oxygen content in container comprises completely adjusting pressure of reference gas in reference gas chamber to pressure in measuring gas chamber, and keeping pressure difference low

摘要

Process for measuring oxygen content in container having measuring gas chamber with measuring gas and pressure deviating from atmospheric pressure comprises adjusting pressure of reference gas in reference gas chamber to pressure in measuring gas chamber or up to remaining pressure difference, and keeping pressure difference low to maintain mechanical function of zirconium dioxide measuring cell. Process for measuring oxygen content in container (25) having measuring gas chamber (7) with measuring gas (26) and pressure PMESS deviating from atmospheric pressure PATM comprises completely adjusting pressure of reference gas PREF in reference gas chamber (6) to pressure in measuring gas chamber or up to remaining pressure difference, and keeping pressure difference low so that mechanical function of zirconium dioxide measuring cell is not impaired.