Equipment and Calibration History

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View history entry 5986 for Licor LI-7500A sn: 0418

Date: 2022-09-12
From: Lab -
To: Lab -
Title: Calibration
Notes: Last calibration: 2022-08-30 AGC=94.7 SDM=0 DAC1=- DAC2=- Ambient P=100.4kPa, Tair=21.8C, Tdew=15.1C Zero Air at 1900psi, AMP CA04119 524.77 at 1400 Tdewspan=20.0 CO2 zero 0.9082 -> 0.9086 Offset: 1.4ppm CO2 span 1.0000 -> 1.0050 Offset: -3.47ppm H2O zero 0.9313 -> 0.9317 Offset: 2.4ppm H2O span 1.0008 -> 1.0065 Offset: -0.12ppm Notes: This head had a drift of SS (and CO2, H2O) after refit by Licor in March. It was calibrated/tested in the lab several times in August. Full calibration on 8/30 but not all the information written down. 8/30 coefficients entered as 'existing' and it seems stable since then. We will try it in the field again.
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