Equipment and Calibration History

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View history entry 6248 for Licor LI-7500A sn: 75H-2669

Date: 2023-04-10
From: Lab -
To: Lab -
Title: Calibration
Notes: Last calibration: 2023-01-04 AGC=101.5 SDM= DAC1= DAC2= Ambient P=100.6kPa, Tair=24.9C, Tdew=10.8C Zero Air at 1300psi, AMP CA04119 524.77 at 1150 Tdewspan=16.00 CO2 zero 0.9187 -> .9207 Offset: 7.69ppm CO2 span 1.0187 -> 1.0176 Offset: 0.83ppm H2O zero 0.9029 -> .9001 Offset: -17.3ppm H2O span 1.033 -> 1.0105 Offset: .47ppm Notes: Offsets are recorded using the 2023-01-04 calibration as the starting config file. Attempted calibration on 4/7 but the H2O zero offset was -38.3 after needing a long time (45+min) to stabilize. The H2O span offset never stabilized. I decided to swap the chemicals then and this is the first calibration since chemical swap.
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