Why is my ML206 Gas Analyzer not recording CO₂ percentage values correctly?

The CO sensor in the ML206 Gas Analyzer will output either 'Out of Range' or 0% CO for the first 2-5 minutes of operation. After this period of time, the sensor will begin to output CO % values. ADInstruments recommends allowing the ML206 Gas Analyzer to warm up for at least 10 minutes with the pump on prior to use (see page 19 in the Gas Analyzer Owner's Guide). Until the Gas Analyzer has warmed up fully, the output from the CO sensor may be unusable due to a large offset and/or thermal drift.

For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.