Equipment and Calibration History
View Equipment |
| Date: |
2011-06-30 |
| From: |
Mayberry - Gas Analyzer CH4 |
| To: |
Mayberry - Gas Analyzer CH4 |
| Title: |
Calibration |
| Notes: |
I removed the solar shield and installed the calibration hood. I was able to connect to the LI7700 through the LI7550 using Ethernet. I changed the wash cycle from 20sec spray rechecked every 15min to a 10sec spray rechecked every 3hr as suggested by Liukang. I flowed zero air from a small transfer tank at about 400psi. The LI7700 reported 0ppm CH4. I then flowed 1.976ppm secondary standard from the tank that used to be at Sherman. The LI7700 reported 1.976ppm CH4. Because the LI7700 seemed to be right on I did not to a formal calibration.
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Field notes
