Equipment and Calibration History

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View history entry 1454 for Vaisala GMP221 sn: Y2009100

Date: 2014-04-08
From: Lab - none
To: Lab - none
Title: Calibration
Notes: Trueppm = Probeppm*1.047 + -347.2; linear relationship between the ppm reported by the probe and the known ppm of the calibration tanks. Tanks: zero air (0ppm), 2238ppm, 3056ppm, and 10000ppm. Ta=25.1C, P=101.5kPa. Because the lab conditions were close to factory conditions, no temperature or pressure corrections were applied. Done by: Joe.
Entered by: Joe Verfaillie