| Date: |
2025-01-07 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Last calibration: 2024-07-19
AGC=98.8 SDM= DAC1= DAC2=
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=101.0kPa, Tair=25.9C, Tdew=2.99C
Zero Air at 900psi, AMP FB04319 514.07 at 400 Tdewspan=20.00
CO2 zero 0.9416 -> .9410 Offset: -2.32ppm
CO2 span 1.0177 -> 1.0165 Offset: .64ppm
H2O zero 0.8407 -> .8454 Offset: 29.2ppm
H2O span 1.0371 -> 1.0393 Offset: -.04ppm
Notes: Larger H2O zero offset (29.2 mmol/m3) than usual, but it was offset by the offset from the previous calibration (-20.2 mmol/m3). There is a consistent drift in the H2O zero coefficient since 2023. I don't think the chemicals have been swapped since 2016, so I could do that next time. Used "514.03" as CO2 span point in the 7550 software.
|
| Entered by: |
|
|
|
