Equipment and Calibration History

History for Licor LI-7550 AIU-0397

Rec No.DateLoc FromTitleLoc ToNotes
5244 2021-04-15 East End Interface LI-7550 Upgrade East End Interface LI-7550 Upgraded firmware from v8.5.0 to v8.8.32
3239 2017-12-18 East End Interface LI-7550 Upgrade East End Interface LI-7550 The embedded software was upgraded from v8.0.0 to v8.5.0
2239 2016-04-13 East End Interface LI-7550 Upgrade East End Interface LI-7550 Updated the 7550 firmware from v7.3.0 to v8.0.0 skiping version 7.5.0
Relevant 7.5.0 changes: Main Window is now resizable, Added serial number entry for sonics, Help update, Fixed timeout when saving config files
Relevant 8.0.0 changes: Separate bandwidth settings for analog inputs and gas channels, Detection of new RS instruments, Additional calibration coefficients, Added sonic software version entry, Added chopper temp logging.
1913 2015-07-20 Lab none Installed East End Interface LI-7550 Installed on the East End Tower to upgrade the eddy system - replacing older equipment
1685 2015-01-30 Factory Returned Lab none Returned from Licor on RMA 00186965. Licor says: Inspected the unit and found the LI-7550 would not power up. Found multiple power supplies shorted due to ants getting
inside the LI-7550. Removed ants, replaced the defective analog board and subjected the unit to environmental tests.
1684 2015-01-08 Lab none Shipped Factory Shipped to Licor for repair on RMA 00186965. During a lab calibration, this box suddenly restarted and then quit. No power light. Power was getting to the main boards.
1618 2014-10-09 Mayberry-Portable Removed Lab none Removed with the rest of the portable tower equipment. End of the portable tower campaign.
1596 2014-10-02 Mayberry-Portable Upgrade Mayberry-Portable Updated the 7550 firmware from v7.0.1 to v7.3.0. Fixed bug that can cause the instrument to restart unexpectedly, added 7700 data to interface can view/log power Vin, other minor bug fixes.
1508 2014-04-28 Mayberry Gas Analyzer CO2/H2O Installed Mayberry-Portable Gas Analyzer CO2/H2O Installed on the Mayberry Portable tower with LI-7500 sn 75H-2176 and LI-7700 sn TG1-0224. This tower is mounted in the back of Dennis's truck and will be moved between two locations on a roughly weekly basis.
1322 2014-04-28 Mayberry Gas Analyzer CO2/H2O Removed Mayberry-Portable Gas Analyzer CO2/H2O Removed from the permanent Mayberry tower with the wash box and installed on the portable tower. Replaced by Ameriflux sn AIU-0915
1595 2014-03-07 Mayberry Gas Analyzer CO2/H2O Upgrade Mayberry Gas Analyzer CO2/H2O Updated the 7550 firmware from v6.5.5 to v7.0.1. Improved interface, support for SmartFlux, bug fixes.
1144 2013-11-21 Mayberry Gas Analyzer CO2/H2O Upgrade Mayberry Gas Analyzer CO2/H2O The firmware of the 7550 box was upgraded from v6.5.2 to v6.5.5 to fix bugs with the USB memory overwrite and synchronizing the 7700 clock.
951 2013-02-14 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed to replace sn 0614 for upgrade at Licor
928 2013-02-11 Factory Upgrade Lab none Returned from Licor with 75H-2182 after repair for the condensation problem. The external connector circuit board at the bottom of the box has been completely sealed. New firmware v6.0.0 has been loaded on the box and requires new Windows interface software. Pressure Sensor sn PX-2379 A0=57.091, A1=15.210.
904 2013-01-10 Lab none Shipped Factory Sent to Licor with H-2182 for fix of condensation problem
877 2013-01-03 West Pond Interface LI-7550 Removed Lab none Removed from the West Pond tower for repair of the condesation problem. Replaced by AIU-0666. Heads swapped for calibration at the same time.
876 2012-11-08 Lab none Installed West Pond Interface LI-7550 Installed on the West Pond tower to swap out AIU-650 for repair of the condensation problem.
827 2012-10-30 Twitchell Rice-Trailer Removed Lab none Removed from the portable tower idle at Twitchell. This box will be used as a spare to cycle all boxes to Licor for upgrade.
820 2012-10-25 Mayberry-Portable Removed Twitchell Rice-Trailer Removed with the Mayberry Portable Tower and parked with the truck near the rice trailer on Twitchell
732 2012-05-10 Lab none Installed Mayberry-Portable Installed with the Mayberry Portable tower in the back on the truck.
767 2012-05-09 Lab none Upgrade Lab none I updated the firmware in this 7550 box to support the new 7500A heads. This box was originally bought with only a 7700 and came with firmware that did not support the 7500s.
766 2012-05-07 Twitchell Rice Interface LI-7500 Removed Lab none Removed from the Twitchell tower. Replaced with 7550 sn AIU-0614 and 7500A sn 2150.
765 2012-01-17 Lab none Installed Twitchell Rice Interface LI-7500 Installed with LI7700 sn TG1-0211. Connected to the CR1000 by SDM. This box came with LI7700 sn TG1-0155 and is not CO2/H2O enabled. This means the SDM interface provides the 7700 data.