Equipment and Calibration
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Equipment Entry
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History
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 6026 | 2022-10-05 | Tonzi-SoilCO2 CO2 Probe Tree1 Profile -0.16 | 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: Tree1 -16cm |
| 3061 | 2017-09-14 | Lab none | Installed | Tonzi CO2 Probe Tree1 Profile -0.16 | Installed at Tonzi in the Tree 1 profile at -16cm after lab calibration. This is a new installation with new holes dug. |
| 1879 | 2015-06-09 | Twitchell Alfalfa | Removed | Lab none | Removed from Set B at -2cm with upgrade of soil CO2 system |
| 1527 | 2014-08-27 | Lab none | Installed | Twitchell Alfalfa | Installed in profile B at 2cm to replace sn F4960019 due to zero reading. |
| 1463 | 2014-05-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.233 + -902.3; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 2238ppm, and 3056ppm. Ta=20.19C, P=101.3kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Madeleine. |
| 1454 | 2014-04-08 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.047 + -347.2; 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=25.1C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Joe. |
| 2021 | 2014-03-18 | Vaira CO2 probe East Profile -0.08 | Removed | Lab none | Removed from Vaira in the East profile due to malfunction. |
| 2001 | 2014-01-29 | Lab none | Installed | Vaira CO2 probe East Profile -0.08 | East profile as -8cm with new U-shaped tops on the PVC enclosures. |
| 1432 | 2014-01-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.031 + -299.9; 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. |
| 1194 | 2014-01-24 | Vaira CO2 probe East Profile -0.08 | Removed | Lab none | Removed from Vaira east plot at -8cm for lab calibration |
| 1128 | 2012-03-21 | Lab none | Installed | Vaira CO2 probe East Profile -0.08 | Installed at Vaira in the east set at -8cm |
| 1412 | 2012-02-06 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.036 + -68.6; 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=24.2C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Siyan. |
| 1403 | 2012-02-03 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.003 + -355.6; 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=26.6C, P=101.6kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Siyan. |
| 1293 | 2010-04-06 | Lab none | Installed | Sherman Island | Installed at Sherman Island in Set B at -8cm. |
| 1358 | 2010-02-03 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.051 + -207; 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=24.1C, P=101.2kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Jaclyn. |
| 11 | 2009-12-01 | Factory | Repair | Factory | Vaisala factory repair and calibration 0-3% - certificate on file.
Problem: Got probe error 05 and 11. No IR source and memory error. Action: Replaced probe circuit board and adjusted unit. |