Equipment and Calibration History

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View history entry 2841 for Licor LI-7500A sn: 0418

Date: 2017-06-20
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Last calibration: 2017-06-13 AGC=95.4 SDM= DAC1= DAC2= Ambient P=99.5kPa, Tair=26.9C, Tdew=13.2C Zero Air at 1500psi, NOAA Air 402.69 at 1650 Tdewspan=16.00 CO2 zero 0.9003 -> .8994 Offset: -3.25ppm CO2 span 1.0066 -> .9961 Offset: 5.59ppm H2O zero 0.841 -> .8423 Offset: 7.6ppm H2O span 1.2209 -> .9658 Offset: 5.25ppm Notes: Checking the zero and spans again because there was a large H2O zero offset last time. H2O zero is pretty stable, but there was a relatively large shift in H2O span. I'll re-test tomorrow.
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