Equipment and Calibration
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Equipment Entry
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History
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 2043 | 2015-11-03 | Vaira CO2 probe North Profile -0.08 | Removed | Lab none | Removed from Vaira North profile at -8cm due to bad readings. Replaced by sn L2010070 |
| 2064 | 2014-12-09 | Vaira CO2 probe North Profile -0.08 | Location | Vaira CO2 probe North Profile -0.08 | Vaira North profile at -8cm - may have been at -4cm |
| 2013 | 2014-04-22 | Vaira CO2 probe North Profile -0.04 | Moved | Vaira CO2 probe North Profile -0.08 | At Vaira North profile, moved from -4cm to -8cm. |
| 1997 | 2014-01-29 | Lab none | Installed | Vaira CO2 probe North Profile -0.04 | Installed at Vaira in the North profile as -4cm with new U-shaped tops on the PVC enclosures. |
| 1444 | 2014-01-27 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.073 + -174.1; 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. |
| 1190 | 2014-01-24 | Vaira CO2 probe North Profile -0.04 | Removed | Lab none | Removed from Vaira north plot at -4cm for lab calibration |
| 1124 | 2012-03-21 | Lab none | Installed | Vaira CO2 probe North Profile -0.04 | Installed at Vaira in the north set at -4cm |
| 1399 | 2012-01-30 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.08 + -104.4; 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. |
| 1372 | 2011-02-01 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.079 + -120.4; 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. |
| 243 | 2010-10-27 | Sherman Island | Removed | Lab none | This probe was removed from the Sherman site for testing because it was reporting >6V at 1.23% which was inconsistent with the label on the transmitter that said it was a 3% probe. However, this is a 1% probe so it is probably fine. |
| 1355 | 2010-02-03 | Lab none | Calibration | Lab none | Trueppm = Probeppm*1.103 + -98.76; 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. |
| 5 | 2009-12-01 | Lab none | Calibration | Lab none | Vaisala factory calibration 0-1% - certificate on file
Problem: Out of tolerance. Action: Updated coefficients and adjusted unit. |