Vaisala PTB210 SERIES Manuel d'instructions télécharger pdf (Page 64)

supply, sensors for inside-monitoring and the data logger have been installed inside

the container at appropriate places.

Positioning of the pressure sensors is to be more diﬃcult due to the need of high

precission. As the sensors are mounted inside, pressure sampling has to be at a

windless cavity outside the container. The outside positioning could lead to errors

in measuremnts in case of turbulences eﬀecting some pressurization caused by the

aerator in the cavity. For that reason some test readings were done.

Figure 6.3: Absolute Sensor Diﬀerence Indoor and Outdoor

The test readings cover measurements of both sensors, inside and outside the con-

tainer. These readings were compared and their results of absolute sensor diﬀerence

are presented in Fig. 6.3.

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Vaisala PTB210 SERIES Manuel d'instructions Page 64