Yes, the CO2 sensor used in the ML206 Gas Analyzer has an over-range capability of up to 15%. To access this over-range ability, the user will need to operate the gas analyzer in stand-alone mode (no I2C connection with the PowerLab) and perform a Units Conversion for both the O2 and CO2 input channels with calibration gases of a known concentration.
For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.