Equipment and Calibration History
History for Vaisala GMP222 Y2030049
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 5002 | 2020-12-01 | Vaira CO2 probe North Profile -0.02 | Removed | Lab none | The battery bank has died and it has been decided to focus on the forced diffusion soil CO2 and Eosense GP profile. The rest of the soil co2 equipment will be removed. |
| 3124 | 2017-09-21 | Vaira CO2 probe East Profile -0.08 | Moved | Vaira CO2 probe North Profile -0.02 | Moved from East profile at -8cm to North profile at -2cm |
| 3068 | 2017-09-14 | Lab none | Installed | Vaira CO2 probe East Profile -0.08 | Reinstalled at Vaira in the East profile at -8cm after lab calibration. |
| 3029 | 2017-08-25 | Vaira CO2 probe East Profile -0.08 | Removed | Lab none | Removed from Vaira from East profile -8 cm position for calibration |
| 2176 | 2016-02-23 | Lab none | Installed | Vaira CO2 probe East Profile -0.08 | Installed in the Vaira East profile at -8cm after lab calibration. Using a new cable. |
| 2068 | 2014-12-09 | Vaira CO2 probe East Profile -0.04 | Location | Vaira CO2 probe East Profile -0.04 | Vaira East profile at -4cm |
| 1999 | 2014-01-29 | Lab none | Installed | Vaira CO2 probe East Profile -0.02 | Installed at Vaira in the East profile as -2cm with new U-shaped tops on the PVC enclosures. |
| 1438 | 2014-01-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.095 + 39.49; 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. |
| 1188 | 2014-01-24 | Vaira CO2 probe East Profile -0.02 | Removed | Lab none | Removed from Vaira east plot at -2cm for lab calibration |
| 1122 | 2012-03-21 | Lab none | Installed | Vaira CO2 probe East Profile -0.02 | Installed at Vaira in the east set at -2cm |
| 1397 | 2012-01-30 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.054 + 39.65; 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. |
| 1374 | 2011-02-01 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.063 + 0.4935; 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. |
| 1359 | 2010-02-11 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.067 + 1.209; 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. |
| 6 | 2009-12-01 | Factory | Calibration | Factory | Vaisala factory calibration 0-1% - certificate on file.
Problem: none Action: Updated coefficients and adjusted unit. |