Equipment and Calibration

View History

Equipment Entry

Instrument:Interface
Manufacture:Licor
Model No:LI-7550
Serial No:AIU-1570
Tag No:
Acquisition Date:2015-09-10
Project:CDFW
Location on 2024-10-24:Rush Ranch,
Notes: GHG-1 package comprised of: sn TG1-0424, sn 75H-2669, sn AIU-1570

Documents

Calibration: cal_LI-7550_snAIU-1570.pdf
PackingSlip: ps_Licor_20150910.pdf

History

Rec No.DateLoc FromTitleLoc ToNotes
7004 2024-10-24 Lab none Installed Rush Ranch Interface Installed on the main tower at Rush Ranch
6591 2024-02-28 West Pond Interface LI-7550 Removed Lab none Removed from WP as part of its decomissioning
5051 2021-01-17 West Pond Interface LI-7550 Upgrade West Pond Interface LI-7550 Upgraded embedded software from v8.5.0 to v8.8.32 in hopes this will solve the persistent 7700 sync issue
3316 2018-01-31 Lab none Installed West Pond Interface LI-7550 Installed at WP to replace AIU-0666 that was removed to fix door gasket, pressure port, circuit board cover.
3308 2018-01-29 Lab none Upgrade Lab none Downgraded from embedded Licor software v8.7.5 to 8.5.0. Version 8.7.5 was causing issues with header/data mismatch. I checked 7550 time and time zone and CO2 and CH4 logging config.
3107 2017-10-04 Bouldin Corn Interface LI-7550 Removed Lab none Removed from the Bouldin Corn tower for testing in the lab for bad headers and 7700 drop outs during wash cycle. Replaced by sn AIU-0614.
3154 2017-08-23 Bouldin Corn Interface LI-7550 Upgrade Bouldin Corn Interface LI-7550 Upgraded the 7550 firmware from v8.0.0 to v8.7.5. I confirmed the 7550 time, time zone, sonic analog settings, and CO2 and CH4 logging config.
2715 2017-04-26 Lab none Installed Bouldin Corn Interface LI-7550 Installed at the Bouldin Corn site with the initial set up of the tower.
2364 2016-06-22 Factory Returned Lab none Returned from Licor RMA 00195802: "Inspected the unit and found the front control panel and the logic board corroded and the detector temperature control circuit inoperative. Replaced defective parts, removed corrosion, environmental tested and verified the operation [of] the unit."
2363 2016-06-02 Lab none Shipped Factory Sent to Licor on RMA 00195802 for repair. The connector board on the bottom of the box got wet and the pins of the power connecters rotted. Licor says the board is all one piece and probably will have to be replaced.
2138 2015-12-23 Twitchell Rice-Trailer Removed Lab none Removed with the temporary tower set up near the building at the rice project for the LGR COS experiment. This box had a significant amount of water inside. There was some corrosion on the power connectors but it looks like it was running up until I turned it off. I blew out all the connectors and stuffed it full of desiccant in the lab.
2116 2015-12-08 Lab none Installed Twitchell Rice-Trailer Installed near the trailer at Twitchell Rice as a temporary site to test a COS analyzer from LGR