Equipment and Calibration

Equipment Entry

Instrument:	Gas Analyzer
Manufacture:	Licor
Model No:	LI-7500RS
Serial No:	75H-1653
Tag No:
Acquisition Date:	2024-10-24
Project:	USGS-RR
Location on 2025-05-07:	Loaned,
Notes:	Acquired with the handoff of Rush Ranch. No temperature sensor.

No documents found

Rec No.	Date	Loc From	Title	Loc To	Notes
7222	2025-05-07	Lab none	Loaned	Loaned none	Loaned to Delfina Grinspan for use this summer in vineyards in Sonoma and Napa.
7193	2025-04-21	Lab	Calibration	Lab	Last calibration: 2023-09-08 AGC=101.3 SDM=1 DAC1=- DAC2=- AIU sn AIU-2023, Presure A0=59.172, A1=15.673 Ambient P=100.4kPa, Tair=19.7C, Tdew=11.0C Zero Air at 200psi, AMP FB04304 401.79 at 900 Tdewspan=16.0 CO2 zero 1.1420 -> 1.403 Offset: -3.7ppm CO2 span 0.9691 -> 0.9969 Offset: -14.39ppm H2O zero 1.0079 -> 1.0088 Offset: 4.1ppm H2O span 1.0189 -> 1.0211 Offset: -0.05ppm Notes: First cal after recieving from USGS with Rush Ranch stuff. Larger offsets not unexpected. We actually had this IRGA in 2011 from Franks as a loaner for Vaira.
6988	2024-10-24	Rush Ranch Gas Analyzer CO2/H2O	Removed	Lab none	Removed from the main tower at Rush Ranch with the handoff of the site. To be cleaned up, tested and likely returned to the tower.