Vaisala WMS302 Guía de usuario Pagina 258

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User's Guide ______________________________________________________________________
256 __________________________________________________________________M210630EN-B
Fuel Moisture/Fuel Temperature Sensor
Specifications
Table 84 Fuel Moisture/Fuel Temperature Sensor
Specifications
Property Description/Value
Fuel moisture sensing element Dry ponderosa pine dowel with embedded
wire electrodes
Fuel moisture measurement
principal
Capacitance of wood calibrated to read per
cent of moisture by weight.
Fuel moisture measurement
accuracy
0 ... 12 %FM
1
1. %FM = Measured fuel moisture units
±1.9 %FM RMSE
2
(two-weeks period)
2. RMSE = Root Mean Square Error
12 ... 30 %FM ±3.6 %FM RMSE
>30 %FM ±16 %FM RMSE
Temperature sensor Single thermistor
Conversion table range -50 ... +50 °C (-58 ... +122 °F)
Temperature measurement
accuracy
±0.2 °C (-20 ... +80 °C)
Size Ø × l 28.6 × 305 mm (1.13 × 12 in.)
Weight 125 g (0.28 lb.)
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