Equipment and Calibration History

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View history entry 2711 for Licor LI-7500A sn: 75H-2180

Date: 2017-04-20
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2016-12-23 AGC=100.5 SDM= DAC1= DAC2= Ambient P=101.1kPa, Tair=23.6C, Tdew=7.63C Zero Air at 1600psi, NOAA CO2 513.22 at 250 Tdewspan=16.00 CO2 zero 0.9145 -> 0.9144 Offset: -0.53ppm CO2 span 1.0287 -> 1.026 Offset: 1.83ppm H2O zero 0.8836 -> 0.8861 Offset: -1.4ppm H2O span 1.0124 -> 1.023 Offset: 0.5ppm Notes: I re-did the H2O zero because the first offset was large, so I wanted to double check. The first offset was 16.8 mmol/m3. The second offset was -1.4 mmol/m3, so I felt confident in the calibration.
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