Update Excel files with plots of CO2 data, to now include descriptions of test conditions of each test series that @bellahenkel produced.
Results showed warm up times were 300-500 seconds from a cold start, depending on level of required accuracy. Shown below are Nov 15 "data from the sensor while is was left in a garbage bag full of outdoor air".
Also, high resolution sampling (ever 200 ms) showed that time averaging could substantially improve precision. Shown below are data from Nov. 20 using the same approach as Nov. 15 (sensor in a bag of outdoor air).
Note that CO2 concentrations are double (~1100 ppm) and variability is nearly triple when taken in the lab's open air. Shown below are Dara from Nov 13.
Update Excel files with plots of CO2 data, to now include descriptions of test conditions of each test series that @bellahenkel produced.
Results showed warm up times were 300-500 seconds from a cold start, depending on level of required accuracy. Shown below are Nov 15 "data from the sensor while is was left in a garbage bag full of outdoor air".
Also, high resolution sampling (ever 200 ms) showed that time averaging could substantially improve precision. Shown below are data from Nov. 20 using the same approach as Nov. 15 (sensor in a bag of outdoor air).
Note that CO2 concentrations are double (~1100 ppm) and variability is nearly triple when taken in the lab's open air. Shown below are Dara from Nov 13.