Equipment and Calibration
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Equipment Entry
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History
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 5414 | 2021-08-11 | Tonzi-SoilCO2 CO2 Probe Tree2 Profile -0.16 | Removed | Lab none | Removed from -16cm in the soil co2 profile near LiuKang's tree. This profile has not been running for a while due to a break in the power line. This style of measurements are being replaced by forced diffusion chambers. |
| 3065 | 2017-09-14 | Lab none | Installed | Tonzi CO2 Probe Tree2 Profile -0.16 | Installed at Tonzi in the Tree 2 profile at -16cm after lab calibration. This is a new installation with new holes dug. |
| 1462 | 2014-05-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*0.743 + -1252; 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. |
| 2006 | 2014-04-22 | Vaira CO2 probe West Profile -0.02 | Removed | Lab none | Removed from Vaira West profile at -2cm, replaced by sn K1310103 |
| 2019 | 2014-03-18 | Vaira CO2 probe West Profile -0.04 | Moved | Vaira CO2 probe West Profile -0.08 | At Vaira in the West profile this probe was moved from the -4cm location to -8cm |
| 2003 | 2014-01-29 | Lab none | Installed | Vaira CO2 probe West Profile -0.04 | West profile as -4cm with new U-shaped tops on the PVC enclosures. |
| 1440 | 2014-01-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.056 + -1146; 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. |
| 1192 | 2014-01-24 | Vaira CO2 probe West Profile -0.04 | Removed | Lab none | Removed from Vaira west plot at -4cm for lab calibration |
| 1126 | 2012-03-21 | Lab none | Installed | Vaira CO2 probe West Profile -0.04 | Installed at Vaira in the west set at -4cm |
| 1410 | 2012-02-06 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.016 + -32.48; 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. |
| 1401 | 2012-02-03 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.001 + -1162; 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. |
| 1291 | 2010-04-06 | Lab none | Installed | Sherman Island | Installed at Sherman Island in Set A at -8cm. |
| 1356 | 2010-02-03 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.058 + 48.2; 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. |
| 7 | 2009-12-01 | Factory | Calibration | Factory | Vaisala factory calibration 0-2% - certificate on file.
Problem: none Action: Updated coefficients and adjusted unit. |
| 19 | 2005-05-16 | Tonzi CO2 Probe Open Profile -0.16 | Removed | Lab none | Removed from Tonzi in the east open area set at 16cm deep |
| 17 | 2003-02-17 | Lab none | Installed | Tonzi CO2 Probe Open Profile -0.16 | Installed at Tonzi in the east open set at 16cm deep. |