Equipment and Calibration History

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View history entry 2833 for Licor LI-7500A sn: 0418

Date: 2017-06-13
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2017-01-12 AGC=100 SDM= DAC1= DAC2= Ambient P=100.2kPa, Tair=23.2C, Tdew=7.69C Zero Air at 1500psi, NOAA Air 402.69 at 1600 Tdewspan=16.00 CO2 zero 0.9009 -> .9003 Offset: -2.33ppm CO2 span 1.0062 -> 1.0066 Offset: -0.23ppm H2O zero 0.857 -> .8410 Offset: -96.9ppm H2O span 0.9788 -> 1.2209 Offset: -4.6ppm Notes: Large H2O Zero offset. First calibration since upgrade from 7500 to 7500A. Copied coefficients for CO2 (A, B, C, D, E, XS, Z) and H2O (A, B, C, XS, Z) from sn00418_20160815post.l75 before the calibration.
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