| Date: |
2018-10-08 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Last calibration: 2018-10-02
AGC=101 SDM=0 DAC1=0 DAC2=0
Ambient P=99.9kPa, Tair=29.3C, Tdew=5.8C
Zero Air at 1500psi, AMP Air 408.97 at 1200 Tdewspan=16.00
CO2 zero 0.9389 -> .9394 Offset: 2.06ppm
CO2 span 1.0172 -> 1.0164 Offset: .38ppm
H2O zero 0.9072 -> .9057 Offset: -8.2ppm
H2O span 1.0238 -> 1.0157 Offset: .17ppm
Notes: Second calibration since chemical swap. Sensor had been running for 5 days, since 10/3 when it had a huge H2O zero offset when analyzing zero gas. I'm not sure why it was reading weird values on 10/3, but the numbers seem ok today, consistent with a chemical swap. In the future, we should let the sensor run for 1 week after swapping internal chemicals, rather than calibrating after only 24 hours.
|
| Entered by: |
|
|
|
