Vaisala WMS302 Betriebsanweisung Seite 48

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User's Guide ______________________________________________________________________
46 ___________________________________________________________________M210630EN-B
Leaf Wetness Sensor
0401-176
Figure 33 Leaf Wetness Sensor QLW101
Leaf Wetness Sensor QLW101 enables data logger to detect the
presence of surface moisture on foliage and calculate the duration of
wetness. When moisture is present, the sensor detects an electrical
resistance change between the gold-plated elements of the grid.
Fuel Moisture/Fuel Temperature Sensor
0201-010
Figure 34 Fuel Moisture/Fuel Temperature Sensor
Fuel Moisture/Fuel Temperature Sensor measures the moisture content
of the material on the forest floor or other natural area to help forest
managers assess the fire danger. It uses a carefully selected and
prepared pine dowel to exchange moisture with the environment. The
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