Equipment and Calibration History

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View history entry 1393 for Vaisala GMT221 sn: G0150037

Date: 2011-12-13
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Trueppm = Probeppm*1.035 + -6.175; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 406ppm, 2238ppm, and 10000ppm (N2 bal). Ta=24.6C, P=101.7kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Sara.
Entered by: Joe Verfaillie