Vaisala PTU300 Guía de usuario Pagina 57

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Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 55
Pressure 3h Trend and Tendency
Reading
Using Basic Display
0604-056
Figure 30 P
3H
Tendency
Display indicators for pressure 3h trend and tendency above, where:
1 = Tendency: Increasing/decreasing graph symbol with the code
number (for more information, see Figure 31, on page 56)
2 = P3h symbol
3 = Trend (middlemost numeric value)
Pressure tendency graphics and codes:
The characteristic symbols of pressure tendency during the 3 hours
preceding the time of observation are described as follows:
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