Vaisala WMS302 Betriebsanweisung Seite 251

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Seitenansicht 250
Chapter 8 ____________________________________________________________ Technical Data
VAISALA______________________________________________________________________ 249
Net Solar Radiation Sensor
Specifications
Soil/Water Temperature Sensors
Specifications
Table 76 Net Radiation Sensor Specifications
Property Description/Value
Spectral response 0 ... 100 µm
Detector protection Teflon coated (no domes)
Sensitivity (upper detector)
10 µV/W/m
2
(nominal)
Recommended output
range
-25 ... +25 mV
Sensor asymmetry 20 %
Range
-2000 ... +2000 W/m
2
Response time (1/e) 20 s (nominal)
Directional error
< 30 W/m
2
(0 ... 60° @ 1000 W/m
2
)
Stability < ±2 % per year
Non-linearity
< 1 % up to 2000 W/m
2
Operating temperature -30 ... +70 °C (-22 ... 158 °F)
Table 77 Soil/Water Temperature Sensor QMT103
Specifications
Property Description/Value
Sensor Type Pt-100 type RTD element
Performance (accuracy) Better than +0.08 °C at 0 °C, conforms to 1/4
DIN 43760B
Sensitivity 0.385 /°C (DIN 43760)
Measurement range - 50 ... +60 °C (-58 ... +140 °F)
Dimensions l × Ø 100 × 7.5 mm (3.9 × 0.3 in.)
Material Stainless steel, AISI 316
Watertight 0.1 ... 4 bar
Cable
PUR black, 5 × 0.5 mm
2
Cu, 5 m (16.4 ft.)
Extension 10 meter (32.8 ft.)shielded cable with male-
female connectors
Ingress protection IP68 (connector)
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