Equipment and Calibration History

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View history entry 3732 for Licor LI-7500A sn: 75H-2667

Date: 2018-10-09
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2018-06-25 AGC=104 SDM=0 DAC1=0 DAC2=0 Ambient P=99.9kPa, Tair=27.7C, Tdew=9.5C Zero Air at 1450psi, AMP Air 408.97 at 1200 Tdewspan=16.00 CO2 zero 0.9414 -> .9413 Offset: -.42ppm CO2 span 1.0162 -> 1.0127 Offset: -87.77ppm H2O zero 0.8375 -> .8362 Offset: -7.4ppm H2O span 1.0237 -> 1.0328 Offset: -.19ppm Notes: Calibrated by Katrina. The CO2 span offset is large, but the change is coefficients is small, so perhaps Katrina wrote down the wrong offset.
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