Equipment and Calibration History

History for Vaisala GMP222 K1310104

Rec No.	Date	Loc From	Title	Loc To	Notes
6027	2022-10-05	Tonzi-SoilCO2 CO2 Probe Open Profile -0.02	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: Open -2cm
3054	2017-09-14	Lab none	Installed	Tonzi CO2 Probe Open Profile -0.02	Installed at Tonzi in the Open profile at -2cm after lab calibration. This is a new installation with new holes dug.
3016	2017-08-25	Tonzi CO2 Probe Tree2 Profile -0.04	Removed	Lab none	Removed from Tonzi Tree 2 profile at -4 cm position for calibration
2195	2016-02-23	Lab none	Installed	Tonzi CO2 Probe Tree2 Profile -0.04	Installed in the Tonzi Tree 2 profile at -4cm after lab calibration.
2159	2016-02-04	Tonzi CO2 Probe Open Profile -0.08	Removed	Lab none	Removed from Tonzi Open profile at -8cm for calibration
2072	2014-12-09	Tonzi CO2 Probe Open Profile -0.08	Location	Tonzi CO2 Probe Open Profile -0.08	Tonzi Open profile at -8cm
2015	2014-04-08	Lab none	Installed	Tonzi CO2 Probe Open Profile -0.02	Installed at Tonzi in the Open profile at -2cm. not clear if it replaced another probe.
1448	2014-04-07	Lab none	Calibration	Lab none	Trueppm = Probeppm*1.008 + 43.09; 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.