Equipment and Calibration

View History

Equipment Entry

Instrument:Interface
Manufacture:Licor
Model No:LI-7550
Serial No:AIU-1866
Tag No:NULL
Acquisition Date:2017-04-28
Project:Ameriflux
Location on 2023-12-01:Lab,
Notes: Ameriflux management program (AMP). One of three LI-7550 Analyzer Interface Units they provided for upgrading Tonzi/Vaira LI-7550s.

Documents

RMA: rma_Licor_00249222_snAIU-1866_20231205.pdf

History

Rec No.DateLoc FromTitleLoc ToNotes
6480 2023-12-01 Factory none Received Lab none Received back from Licor. This 7550 sn AIU-1866 went back to Licor for a power problem. Licor replaced the 7550 main power supply under warranty, subjected the units to environmental tests and verified the operation of the units. It was shipped with 7500A sn 75H-2669 (nothing wrong with the 7500A, it was just the sensor attached when the box died)
6468 2023-11-09 Lab none Shipped Factory none Shipped back to Licor for repair. It was sent with 7500A sn 75H-2669.
6456 2023-10-26 Gilbert Tract Interface LI-7550 Removed Lab none Removed because of a blown fuse. We tried replacing the fuse, but it blew immediately.
6294 2023-05-17 Lab none Installed Gilbert Tract Interface LI-7550 Installed at GT after factory repair to replace sn AIU-1039, the AMP 7550.
6271 2023-04-27 Factory none Received Lab none Received back from Licor after repair. The main power supply was found defective and replaced.
6231 2023-03-03 Lab none Shipped Factory none Shipped to Licor for repair
6203 2023-03-02 Bouldin Corn Interface LI-7550 Removed Lab none Unit is receiving 24V but no LED lights and couldn't connect. Removed from BC tower and brought back to the lab for testing.
5243 2021-04-15 Bouldin Corn Interface LI-7550 Upgrade Bouldin Corn Interface LI-7550 Upgraded firmware from v8.5.0 to v8.8.32
5090 2021-02-03 Lab none Installed Bouldin Corn Interface LI-7550 Installed on the BC tower to replace sensors damaged when the tower fell last week
4104 2019-09-04 Bouldin Alfalfa-ReleaseEx Interface LI-7550 Removed Lab none Removed from Bouldin Alfalfa with the end of the CH4 release experiment. This unit was on the secondary tower
4086 2019-08-16 Lab none Installed Bouldin Alfalfa-ReleaseEx Interface LI-7550 Installed for CH4 release experiment. This unit was part of a secondary, lower eddy system
3987 2019-05-31 Factory Received Lab none Received back from Licor. They replaced the RF chip in the power supply.
3981 2019-05-09 Lab none Shipped Factory Shipped back to Licor for them to inspect.
3969 2019-05-01 Lab none Tested Lab none Plugged it in to the 24V wall power and it was dead. Will e-mail Licor.
3972 2019-04-30 Tonzi-Tower Interface LI-7550 Removed Lab Interface LI-7550 Removed from Tonzi Tower due to power issues. Power light was flickering with audible relay click when a head was attached. Seemed to boot without head. Might have caused 5A Tower load breaker to pop on 4-23. Brought in for testing - replaced with Floor box sn AIU-1869
3369 2018-03-06 Tonzi-Tower Interface LI-7550 Upgrade Tonzi-Tower Interface LI-7550 Downgraded from embedded software version 8.7.5 to version 8.5.0 to standardize our systems. We had to downgrade other interfaces to 8.5.0 to solve the data-header mismatch we had with version 8.7.5.
2973 2017-08-17 Tonzi-Tower Upgrade Tonzi-Tower The firmware was upgraded from v8.5.0 to v8.7.5
2766 2017-05-11 Lab none Installed Tonzi-Tower Installed on the Tower one level below the top on the southwest corner post.