Equipment and Calibration History

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View history entry 2095 for Licor LI-7500A sn: 1594

Date: 2015-11-16
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2015-04-20 AGC=101.9 SDM=1 DAC1=- DAC2=- Ambient P=101.42kPa, Tair=20.60C, Tdew=-2.88C Zero Air at 700psi, God CO2 421.22 at 700 Tdewspan=11.08 CO2 zero 0.8658 -> 0.8662 Offset: 1.43ppm CO2 span 1.0027 -> 1.0243 Offset: -11.42ppm H2O zero 0.8855 -> 0.8821 Offset: -18.0ppm H2O span 0.9935 -> 1.0212 Offset: -0.54ppm Notes: This is the first calibration of this head after it was upgraded to the new 7500A interface and had its chemicals changed. Old coefficients from last Licor calibration loaded were loaded during the upgrade. Last lab calibration coefficients: CO2_zero = 0.8648, CO2_span = 1.0178, H2O_zero = 0.8985, H2O_span = 1.0087.
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