Equipment and Calibration History

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View history entry 750 for Licor LI-7500A sn: 0065

Date: 2012-08-07
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2012-08-06 AGC=37.5 SDM=10 DAC1= DAC2= Ambient P=100.68kPa, Tair=22.52C, Tdew=C Zero air at 1700psi, Co2 in air 436.53 at 1450 Tdewspan=15.08 CO2 zero 0.874 -> 0.9473 Offset: 294.5ppm CO2 span 0.9973 -> 1.3749 Offset: -146.53ppm H2O zero 0.6387 -> 0.6596 Offset: 187.9ppm H2O span 1.0898 -> 1.2399 Offset: -2.67ppm Notes: Initial calibration after upgrading to a 7500A head. Calibration coefficients and zero/span values were entered by hand into the LI-7550. New internal chemicals will need to settle for at least a day.
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