Equipment and Calibration History

History for Vaisala GMP222 K1350101

Rec No.	Date	Loc From	Title	Loc To	Notes
5003	2020-12-01	Vaira CO2 probe North Profile -0.04	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.
3123	2017-10-05	Lab none	Installed	Vaira CO2 probe North Profile -0.04	Installed at Vaira in the North profile at the -4cm location
3024	2017-08-25	Vaira CO2 probe West Profile -0.08	Removed	Lab none	Removed from Vaira from West profile -8 cm position for calibration
2179	2016-02-23	Lab none	Installed	Vaira CO2 probe West Profile -0.08	Installed in the Vaira West profile at -8cm after lab calibration.
2153	2016-02-04	Vaira CO2 probe West Profile -0.08	Removed	Lab none	Removed from Vaira West profile at -8cm for calibration
2063	2014-12-09	Vaira CO2 probe West Profile -0.08	Location	Vaira CO2 probe West Profile -0.08	Vaira West profile at -8cm
2011	2014-04-22	Vaira CO2 probe West Profile -0.02	Installed	Lab none	Installed in the Varia West profile at -2cm replacing sn G0230062
1447	2014-04-07	Lab none	Calibration	Lab none	Trueppm = Probeppm*1.014 + 51.82; 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=25.8C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Joe.