Equipment and Calibration History

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View history entry 4988 for Licor LI-7500A sn: 75H-2514

Date: 2020-11-24
From: Lab -
To: Lab -
Title: Calibration
Notes: Last calibration: 2020-05-22 AGC=100 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=24.2C, Tdew=8.6C Zero Air at 525psi, AMP CA4396 408.97 at 375 Tdewspan=20.00 CO2 zero 0.9048 -> .9037 Offset: -4.75ppm CO2 span 1.009 -> 1.0074 Offset: .84ppm H2O zero 0.8405 -> .8431 Offset: 18.4ppm H2O span 1.0148 -> 1.0122 Offset: .06ppm Notes: Large H2O zero. After the calibration, I changed the chemical bottles. The chemicals were all solidified and I had a hard time scraping it out with a screwdriver, so I just put fresh chemicals in extra bottles. I flushed the cavity with zero air before sealing it with the fresh bottles. I'll let it run through the weekend on the bench and test/calibrate again next week.
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