| Date: |
2012-01-25 |
| From: |
Twitchell Rice - |
| To: |
Twitchell Rice - |
| Title: |
Calibration |
| Notes: |
With the new external filter I calibrated the LGR. The cal tank has <200psi of 3.276ppm CH4. Last calibration was Dec 20, 2011.
Pre Cal: 8:49PST, 29.61C, 156.07Torr, 13.871usec, 3.282ppm, 1Hz
The first try at calibration failed somehow ending in a value (3.317ppm) farther from the span gas. A second calibration seemed to work fine and ended up right on.
When I left the LGR read
9:56PST, 23.93C, 153.81Torr, 13.060usec, 10Hz, 2.311ppm |
| Entered by: |
Sara Knox |
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