Equipment and Calibration History

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View history entry 568 for Licor LI-7500A sn: 0035

Date: 2012-05-17
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2012-05-16 AGC=50 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.19kPa, Tair=23.04C, Tdew=8.4C dry air at 16psi, CO2 436.53 at 1500 Tdewspan=13.7 CO2 zero 0.9419 -> 0.9546 Offset: 13.62ppm CO2 span 0.8842 -> 1.0182 Offset: 17.44ppm H2O zero 1.0055 -> 0.8346 Offset: -1.89ppm H2O span 0.999 -> 0.8284 Offset: 5.11ppm Notes: calibrated in the lab; >10ppm offset although the IRGA was just fixed by Li-cor. Joe called Li-cor, but no clue.
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