| Date: |
2024-10-07 |
| From: |
Lab - |
| To: |
Lab - |
| Title: |
Calibration |
| Notes: |
Calibration Location: Lab
Last calibration: 2016-09-09
RSSI=79%, Optical RH=11%
Ambient P=99.58kPa, Tair=33.8C
Zero Air at 1300psi, AMP FB04035 1.9156 at 850
CH4 Zero Offset: -0.087ppm
CH4 Span Offset: 0.0034ppm
Notes: First check of instrument from USGS. Last zero was 2016-01-08. Clock 20min fast, set heater and wash to Biomet Default. Head humidity at 38%. Swapped head desiccant and flushed head space to 11%. Initial span used ppb instead of ppm for off by a factor of 1000. Redid span on 10/14 with different tank FB04319, 2.6969ppm CH4, 1000psi - seemed fine.
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