Equipment and Calibration History

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View history entry 1247 for Licor LI-7500A sn: 0035

Date: 2014-03-17
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2013-11-06 AGC=49 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=101.0kPa, Tair=23.43C, Tdew=10.7C Zero Air at 1400psi, God CO2 421.22 at 1550 Tdewspan=15.26 CO2 zero 0.9393 -> 0.9389 Offset: -1.80ppm CO2 span 1.0154 -> 1.0139 Offset: -0.03ppm H2O zero 0.8904 -> 0.8932 Offset: 21ppm H2O span 0.9744 -> 0.9462 Offset: 0.03ppm Notes: Calibrated by Joe. The water channel was unstable. I think the calibration is okay, but more fluctuation than usual in H2O.
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