Equipment and Calibration

View History

Equipment Entry

Instrument:CO2 Probe
Manufacture:Forerunner-Eosense
Model No:GP-001
Serial No:GP20140026
Tag No:
Acquisition Date:2014-09-25
Project:USDA Rice
Location on 2021-04-13:Lab,
Notes: 0 to 2% range. These probes have an extra 20% bonus to their CO2 analog range. So a 0-2% probe will have a 0-2.4% analog output range.

Documents

Calibration: Forerunner_GP001_20140026.pdf
Report: Eosense CO2 Probe Compare - 2018-09-07
Report: eosGP comparison - 11/2023 - 2023-11-16

History

Rec No.DateLoc FromTitleLoc ToNotes
5236 2021-04-13 Lab none Tested Lab none Tested in the lab and the CO2 signal responded to my breath. I'll keep it running for a while and see.
5109 2021-02-04 West Pond CO2 Probe B Removed Lab none Removed from WP and brought back to the lab b/c this sensor has been reading noise since late Nov
4107 2019-09-18 Lab none Installed West Pond CO2 Probe B Reinstalled at the northwest corner of the scaffolding. The water level is low so it is sitting in a puddle for the time being.
4105 2019-09-16 Lab none Tested Lab none Tested against 2 good sensors (1% and 2%) in the lab test chamber with atmospheric CO2 and with an exhalation. Seemed to respond similarly to the other sensors. This sensor has degraded threads, so you can't get the cable off. I will seal up the connection again. I'm not sure why it was maxing out in the field, but seems fine now. Maybe some condensation inside evaporated?
4048 2019-08-19 West Pond CO2 Probe B Removed Lab none Removed from WP and brought back to the lab for testing out (it was maxing out at 2% even in the air).
3791 2018-11-01 Lab none Installed West Pond CO2 Probe B Installed at WP to replace sn GP20140018, which was brought back to the lab for too-high readings.
3354 2018-03-07 Twitchell Alfalfa Removed Lab none Removed from the -8cm location at Twitchell Alfalfa because the readings have been funky for a while. Probably will be replaced at a later date.
1935 2015-08-19 Lab none Installed Twitchell Alfalfa Installed at the 8cm level at Twitchell Alfalfa to replace sn GP2015ex03 that was dropping out.
1897 2015-06-25 Mayberry CO2 Probe B Removed Lab none Removed from the middle location at Mayberry due to corroding connector. Replaced by sn GP20140025
1726 2015-02-05 Lab none Installed Mayberry CO2 Probe B Installed in the middle position of the stringer at Mayberry. This sensor has copper mesh over the filter and replaces sn GO20140024