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Loading 4/1 - 5/1/2014
Data loaded directly from DMF

Processed CO data normally.  
Ambient CO data appear normal and acceptable.  

Standard additions show minimal variation over the month

2014-04-17 06:00 - 2014-05-09 06:00 Calibration cylinder was either turned off or expired.  

During the month, the Ambient Temperature sensor showed a pronounced (and unreal) negative excursion. for reasons that have not been explained  This did not appear to affect the ambient CO measurements, but it did cause a disruption of the N2O and H2O signals.  For this month, the N2O and H2O signals should be viewed with some scepticism.