Equipment and Calibration

Equipment Entry

Instrument:	CO2 Probe
Manufacture:	Vaisala
Model No:	GMP221
Serial No:	H0960006
Tag No:
Acquisition Date:	2012-05-23
Project:	USDA
Location on 2013-01-04:	Disposed,
Notes:	Came with cricuit board GMB220 sn H1410158

No documents found

Rec No.	Date	Loc From	Title	Loc To	Notes
914	2013-01-04	Lab none	Tested	Disposed	Upon inspection in the lab. this sensor was found to be severely corroded. However, at the time of inspection the sensor was not damp.
913	2013-01-03	Mayberry CO2 Probe B	Removed	Lab none	Removed from the tules near the tule tower due to bad values.
659	2012-07-26	Lab none	Installed	Mayberry CO2 Probe B	Installed on the Tule Tower to measure water CO2 concentration.
1418	2012-06-27	Lab none	Calibration	Lab none	Trueppm = Probeppm*1.003 + 133; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 436ppm, 3056ppm, and 10000ppm. Ta=25.9C, P=101.4kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Sara.