Equipment and Calibration

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Equipment Entry

Instrument:CO2 Probe
Manufacture:Vaisala
Model No:GMP221
Serial No:H1310020
Tag No:
Acquisition Date:2012-05-02
Project:DOE-TCP
Location on 2013-07-23:Disposed,
Notes: 0-2% probe. Factory calibrated on 2012-04-17. Replaces broken probe sn X1520002.

Documents

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History

Rec No.DateLoc FromTitleLoc ToNotes
1032 2013-07-23 Lab none Tested Disposed I (Sara Knox) tested the probe in the lab to try to figure out what was wrong with it. It still maxed out at 5000 mV and the lights on the circuit board were flashing red and green. I took it out of the teflon tubing to inspect the probe for water damage - sure enough it was all corroded. I think its dead Jim.
1031 2013-07-16 Mayberry CO2 Probe A Removed Lab none Removed open water CO2 probe since it was railed at 5000 mV.
658 2012-07-26 Lab none Installed Mayberry CO2 Probe A Installed on the Tule Tower to measure water CO2 concentration.
1417 2012-06-27 Lab none Calibration Lab none Trueppm = Probeppm*0.9873 + 114.4; 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.