Equipment and Calibration
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History
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 6028 | 2022-10-05 | Tonzi-SoilCO2 CO2 Probe Open Profile -0.04 | Removed | Lab none | The soil co2 gradient system has not been in good condition for a long time. Finally getting around to removing the equipment from the field: Open -4cm |
| 3055 | 2017-09-14 | Lab none | Installed | Tonzi CO2 Probe Open Profile -0.04 | Installed at Tonzi in the Open profile at -4cm after lab calibration. This is a new installation with new holes dug. |
| 3010 | 2017-08-25 | Tonzi CO2 Probe Open Profile -0.04 | Removed | Lab none | Removed from Tonzi Open profile at -4 cm position for calibration |
| 2189 | 2016-02-23 | Lab none | Installed | Tonzi CO2 Probe Open Profile -0.04 | Installed in the Tonzi Open profile at -4cm after lab calibration. |
| 2150 | 2016-02-04 | Vaira CO2 probe East Profile -0.04 | Removed | Lab none | Removed from Vaira East profile at -4cm for calibration |
| 2067 | 2014-12-09 | Vaira CO2 probe East Profile -0.02 | Location | Vaira CO2 probe East Profile -0.02 | Vaira East profile at -2cm |
| 2000 | 2014-01-29 | Lab none | Installed | Vaira CO2 probe East Profile -0.04 | East profile as -4cm with new U-shaped tops on the PVC enclosures. |
| 1443 | 2014-01-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*0.9937 + 44.53; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 3056ppm, and 10000ppm. Ta=22.7C, P=102.1kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Patty. |
| 1191 | 2014-01-24 | Vaira CO2 probe East Profile -0.04 | Removed | Lab none | Removed from Vaira east plot at -4cm for lab calibration |
| 1125 | 2012-03-21 | Lab none | Installed | Vaira CO2 probe East Profile -0.04 | Installed at Vaira in the east set at -4cm |
| 1400 | 2012-01-30 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.005 + 20.82; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 436ppm, 2238ppm, and 10000ppm (N2 bal). Ta=27.4C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Siyan. |
| 1373 | 2011-02-01 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.025 + 6.264; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 383ppm, and 597ppm. Ta=25.5C, P=102.3kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Melanie. |
| 1360 | 2010-02-11 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.053 + -13.53; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 383ppm, 597ppm, and 2238ppm. Ta=21.8C, P=102.3kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Jaclyn. |
| 9 | 2009-12-01 | Factory | Repair | Factory | Vaisala factory repair and calibration 0-1% - certificate on file.
Problem: Got probe error 05 and 10. Memory error and no IR source. Action: Replaced probe circuit board and adjusted unit |