Equipment and Calibration History
View Equipment |
| Date: |
2011-07-08 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
I calibrated the Li6262 in differential mode. I flowed zero air through a T into both the reference and sample cells at a flow just detectable on wetted lips. CO2 was low by about a 0.1 ppm CO2. I adjusted both CO2 zero and H2O zero. I then flowed 370.91ppm CO2 in air (god bottle) through the sample while leaving the zero air in the reference. The 6262 read 369.20+-0.05ppm. I adjusted the CO2 span to match the tank value. I tested the nearly empty 597.4ppm tank and it was true. I then test the new 400ppm CO2 in air tank and came up with a value of 405.85ppm and labeled the tank with this value. |
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