Equipment and Calibration History

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View history entry 5604 for Licor LI-7700 sn: TG1-0223

Date: 2021-12-01
From: Mayberry - Gas Analyzer CH4
To: Mayberry - Gas Analyzer CH4
Title: Calibration
Notes: Calibration Location: Mayberry Last calibration: 2021-06-01 RSSI=85%, Optical RH=22% Ambient P=101.8kPa, Tair=9.3C Zero Air at 600psi, AMP CA04396 1.9317 at 1650 CH4 Zero Offset: 0.034ppm CH4 Span Offset: -0.0157ppm Notes: A lot of fog in the air so it was hard for RSSI to go >60 even when clean. The RSSI increased to 85 when we put the hood on. Relatively still day. After calibration, we dried down the sensor headspace with zero air until optics RH=10%. We swapped out the old drierite for fresh drierite.
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