Equipment and Calibration History

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View history entry 5941 for Licor LI-7500A sn: 75H-2418

Date: 2022-08-17
From: Lab -
To: Lab -
Title: Calibration
Notes: Last calibration: 2020-03-23 AGC=100.5 SDM=0 DAC1=- DAC2=- Ambient P=100.2kPa, Tair=24.2C, Tdew=13.6C Zero Air at 300psi, AMP CA04119 524.77 at 1400 Tdewspan=20.0 CO2 zero -> 0.9786 Offset: -0.7ppm CO2 span 1.0091 -> 1.0054 Offset: 2.63ppm H2O zero 0.8245 -> 0.8242 Offset: 0.9ppm H2O span 1.0166 -> 1.0292 Offset: -0.28ppm Notes: Borrowed from Ameriflux. Previous cal values retrieved from instrument. Seems the 7500s don't drift much and that our cal methods match whatever methods were used last time.
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