Equipment and Calibration

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Equipment Entry

Instrument:CO2 Probe
Manufacture:Vaisala
Model No:GMP222
Serial No:K1350102
Tag No:
Acquisition Date:2014-04-03
Project:DOE
Location on 2020-12-01:Lab,
Notes: 0-1% range

Documents

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History

Rec No.DateLoc FromTitleLoc ToNotes
5009 2020-12-01 Vaira CO2 probe East Profile -0.16 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.
3128 2017-09-21 Vaira CO2 probe East Profile -0.04 Moved Vaira CO2 probe East Profile -0.16 Moved from East profile at -4cm to East profile at -16cm
3067 2017-09-14 Lab none Installed Vaira CO2 probe East Profile -0.04 Reinstalled at Vaira in the East profile at -4cm after lab calibration.
3023 2017-08-25 Vaira CO2 probe West Profile -0.04 Removed Lab none Removed from Vaira from West profile -4 cm position for calibration
2178 2016-02-23 Lab none Installed Vaira CO2 probe West Profile -0.04 Installed in the Vaira West profile at -4cm after lab calibration.
2152 2016-02-04 Vaira CO2 probe West Profile -0.04 Removed Lab none Removed from Vaira West profile at -4cm for calibration
2062 2014-12-09 Vaira CO2 probe West Profile -0.04 Location Vaira CO2 probe West Profile -0.04 Vaira West profile at -4cm
1449 2014-04-07 Lab none Calibration Lab none Trueppm = Probeppm*1.02 + 41.22; 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.