Equipment and Calibration

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Equipment Entry

Instrument:CO2 Probe
Manufacture:Vaisala
Model No:GMP222
Serial No:X1920001
Tag No:
Acquisition Date:0000-00-00
Project:DOE-TCP
Location on 2014-01-24:Lab, -16cm
Notes: 0-1% range

Documents

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History

Rec No.DateLoc FromTitleLoc ToNotes
1186 2014-01-24 Tonzi CO2 Probe Tree2 Profile -0.08 Removed Lab none Removed from Tonzi tree #2 at -8cm for lab calibration
1138 2012-03-02 Lab none Installed Tonzi CO2 Probe Tree2 Profile -0.08 Installed at Tonzi in the Tree2 set at -8cm
1416 2012-02-15 Lab none Calibration Lab none Trueppm = Probeppm*1.098 + -121.7; 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=26.7C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Siyan.
1364 2010-03-01 Lab none Calibration Lab none Trueppm = Probeppm*1.121 + 35.69; 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=20.2C, P=101.9kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Jaclyn.
4634 2010-01-08 Tonzi CO2 Probe Tree1 Profile -0.16 Location Tonzi CO2 Probe Tree1 Profile -0.16 Pulled out for ambient air reading and put back.
4544 2008-03-06 Lab none Installed Tonzi CO2 Probe Open Profile -0.16 Installed in the East open grass profile at -16cm. mV and ppm readings in air were recorded before installation.
2029 2005-02-17 Tonzi CO2 Probe Tree1 Profile -0.08 Location Tonzi CO2 Probe Tree1 Profile -0.08 Location noted at Tonzi in Tree 1 (West) profile at -8cm - listed as probe #2