Equipment and Calibration History

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View history entry 1222 for Licor LI-7500A sn: 0073

Date: 2014-02-28
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2013-11-20 AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=98.44kPa, Tair=19.43C, Tdew=9.72C Zero air at 1400psi, God CO2 421.22 at 1500 Tdewspan=15.17 CO2 zero 0.9579 -> 0.9578 Offset: -0.21ppm CO2 span 1.002 -> 1.0009 Offset: 0.58ppm H2O zero 0.7328 -> 0.7355 Offset: 16.5ppm H2O span 1.0042 -> 0.9972 Offset: 0.16ppm Notes: CO2 span a little unstable +-0.5ppm (usually +-0.05ppm)
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