| Date: |
2020-08-20 |
| From: |
Lab - |
| To: |
Lab - |
| Title: |
Calibration |
| Notes: |
Last calibration: 2020-02-11
AGC=99.8 SDM= DAC1= DAC2=
Ambient P=100.1kPa, Tair=27.3C, Tdew=14.5C
Zero Air at 725psi, AMP CA4396 408.97 at 500 Tdewspan=20.00
CO2 zero 0.903 -> .9019 Offset: -4.84ppm
CO2 span 1.0154 -> 1.0014 Offset: 7.21ppm
H2O zero 0.8674 -> .8665 Offset: -5.7ppm
H2O span 1.0224 -> 1.0110 Offset: 0.26ppm
Notes: Zero offsets and CO2 span larger than I expected. I had trouble with the H2O span at first because the water concentration kept decreasing. I added DI water to the dewpoint generator reservoir, which fixed the issue. Air quality was bad inside from wildfire smoke leaking in through windows.
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