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Equipment and CalibrationView History
Equipment Entry
| Instrument: | CO2 Probe |
| Manufacture: | Vaisala |
| Model No: | GMP221 |
| Serial No: | K1340005 |
| Tag No: | |
| Acquisition Date: | 2014-04-03 |
| Project: | DOE |
| Location on 2018-06-13: | Lab, |
| Notes: |
0-3% range |
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Documents
No documents found
History
| Rec No. | Date | Loc From | Title | Loc To | Notes |
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| 3510 |
2018-06-13 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed with Twitchell Alfalfa site decommissioning. |
| 1873 |
2015-06-09 |
Twitchell Alfalfa |
Removed |
Lab none |
Removed from Set A at -2cm with upgrade of soil CO2 system |
| 1861 |
2014-08-13 |
Lab none |
Installed |
Twitchell Alfalfa |
Installed near the radiometers at Alfalfa in Set A to the south at -2cm |
| 2088 |
2014-04-10 |
Lab none |
Installed |
Sherman Island |
Installed in Sherman profile A at -2cm to replace sn H1630066 |
| 1451 |
2014-04-07 |
Lab none |
Calibration |
Lab none |
Trueppm = Probeppm*0.9908 + -5.527; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 2238ppm, 3056ppm, and 10000ppm. Ta=25.8C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Joe. |
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