Equipment and Calibration History

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View history entry 3734 for Licor LI-7500A sn: 75H-2669

Date: 2018-10-09
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2018-06-25 AGC=103 SDM=0 DAC1=0 DAC2=0 Ambient P=99.88kPa, Tair=27.1C, Tdew=12.9C Zero Air at 1425psi, AMP Air 408.97 at 1200 Tdewspan=16.00 CO2 zero 0.9182 -> .9180 Offset: -.8ppm CO2 span 1.0125 -> 1.0125 Offset: 2.2ppm H2O zero 0.8994 -> .8989 Offset: 52.7ppm H2O span 1.0062 -> 1.0049 Offset: 16.02ppm Notes: Calibrated by Katrina. The H2O offset is large, but the change is coefficients is small, so perhaps Katrina wrote down the wrong offset.
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