| Date: |
2015-04-20 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Last calibration: 2014-12-22
AGC=50 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.28kPa, Tair=20.38C, Tdew=12.81C
Zero Air at 900psi, God CO2 421.22 at 1200 Tdewspan=15.96
CO2 zero 0.8649 -> 0.8648 Offset: -0.44ppm
CO2 span 1.0175 -> 1.0178 Offset: -0.22ppm
H2O zero 0.8981 -> 0.8985 Offset: 2.2ppm
H2O span 1.1398 -> 1.0087 Offset: 2.68ppm
Notes: Relatively large offsets in H2O span, similar to other 7500s calibrated at this time - dew point generator and Vaisala probe agreed with in 0.5C
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