Vaisala PTB210 SERIES Manuel d'instructions Page 60

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Pressure Profile
Regarding the reference device of the pressure chamber, the profiles of pressure
readings show very good linear characteristics in the common measurement range
as shown in Fig. 5.8. This, requirements of high accuracy and precision concerning
further calculation of mixing ratio can be implemented with this sensors like ex-
pected.
Figure 5.8: Pressure Profile Sensor 1 and Sensor 2
Sensor Difference
The findings in differences of pressure readings among the sensors constrain at a
maximum of approximately 0.03 hPa according to Fig. 5.9 and have been found in
lower and higher pressure ranges around 500 to 600 and 1100 to 1200 hPa. Ranges
around the standard atmospheric pressure show almost no variatons.
Offsets are becoming greater with increasing pressure.
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