Equipment and Calibration History

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View history entry 1381 for Vaisala GMT221 sn: G0150034

Date: 2011-02-10
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Trueppm = Probeppm*1.055 + 27.37; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 597ppm, 2238ppm, and 10000ppm (N2 bal). Ta=25.5C, P=102.4kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Melanie.
Entered by: Joe Verfaillie