Equipment and Calibration History

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View history entry 838 for Licor LI-7700 sn: TG1-0211

Date: 2012-09-06
From: Twitchell Rice - Gas Analyzer CH4
To: Twitchell Rice - Gas Analyzer CH4
Title: Calibration
Notes: Calibration Location: Twitchell Last calibration: 2011-12-03 RSSI=63%, Optical RH=% Ambient P=101.45kPa, Tair=22.5C ultra zero air at 1900psi, ch4 in air 4.982 at 950 CH4 Zero Offset: 0.050ppm CH4 Span Offset: -0.002ppm Notes: Calibrated on the Twitchell tower by Joe and Cove. Last cal is the original done by Licor.
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