Operating Manual
Smart Weather Sensor
46
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
13.1.7 Precipitation
13.1.7.1 WS400-UMB / WS600-UMB
Measurement process:
Radar sensor
Measuring range (drop size):
0.3 mm ... 5.0 mm
Liquid precipitation resolution:
0.01 mm
Precipitation types:
Rain, snow
Repeatability:
Typically > 90%
Response threshold:
0.002 mm
Sampling rate:
Event-dependent on reaching response threshold
Precipitation intensity:
0 … 200 mm/h; Sampling rate 1 minute
13.1.7.2 WS401-UMB / WS601-UMB
Measurement process:
Rain Gauge
Liquid precipitation resolution:
0.2 mm / 0.5mm (adjustable by reduction ring)
Precipitation types:
Rain
Accuracy:
2%
Sampling rate:
1 minute
13.1.8 Compass
Measurement process:
Integrated electronic compass
Measurement range:
0 ... 359°
Resolution:
1.0°
Accuracy:
+/- 10°
Sampling rate:
5 minutes
13.1.9 Global Radiation
Measurement Process
Thermopile pyranometer
Measurement Range
0.0 ... 2000.0 W/m²
Resolution
< 1W/m²
Sampling Rate
10 seconds
13.1.9.1 WS301-UMB / WS501-UMB
Response time (95%)
18s
Non-stability(change/year)
<1%
Non-linearity (0 to 1000 W/m²)
<1%
Directional error (at 80° with 1000 W/m²)
<20 W/m²
Temperature dependence of sensitivity
<5% (-10 to +40°C)
Tilt error (at 1000 W/m²)
<1%
Spectral range (50% points)
300 ... 2800nm
13.1.9.2 WS302-UMB / WS502-UMB / WS700-UMB
Response time (95%)
<1s
Spectral range (50% points)
300 ... 1100nm
13.1.9.3 WS310-UMB / WS510-UMB
Response time (95%)
5s
Non-stability(change/year)
<0.5%
Non-linearity (0 to 1000 W/m²)
<0.2%
Directional error (at 80° with 1000 W/m²)
<10 W/m²
Temperature dependence of sensitivity
<1% (-10 to +40°C)
Tilt error (at 1000 W/m²)
<0.2%
Spectral range (50% points)
285 ... 2800nm