Weather and Visibility Sensors PWD Series
• Accurate and traceable measurement of prevailing visibility
• Compact and lightweight
• Easy to install
• Additionally for PWD12 and PWD22 models:
• Indicate the cause of reduced visibility
• Identify precipitation type
• Measure the intensity and accumulation of precipitation
• Estimate snow accumulation
• Many different models available:
• PWD 10, for road weather applications
• Operating principle: forward scatter measurement with 45° scattering angle
• Observation range: 10- 2000m
• Accuracy: ±10% at 10-2000m
• PWD 12, for sophisticated road weather applications
• Operating principle: Forward scatter measurement with 45° scattering angle
• Observation range: 10-2000m
• Accuracy: ±10% at 10-2000m
• Weather type identification: 4 different types of precipitation (rain, drizzle, mixed rain/snow, snow)
• Weather type reporting: WMO 4680 (SYNOP) and NWS code tables
• Precipitation detection sensitivity: 0.05mm/h or less withing 10 minutes
• Precipitation intensity measurement: 0.00-999.99mm/h
• Precipitation amount measurement: 0.00-99.99mm
• Amount of new snow: 0.00-999mm
• PWD 20 (W)
• Operating principle: Forward scatter measurement with 45° scattering angle
• Observation range: 10- 20.000m
• Accuracy: ±10 % at 10 … 10 000 m, ±15 % at 10 … 20 km
• PWD 22, for meteorological and aviation applications
• Observation principle: forward scatter measurement with 45° scattering angle
• Observation range: 10-20.000m
• Accuracy: ±10 % at 10 … 10 000 m, ±15 % at 10 … 20 km
• Weather type identification: 4 different types of precipitation (rain, drizzle, mixed rain/snow, snow)
• Weather type reporting: WMO 4680 (SYNOP) and NWS code tables
• Precipitation detection sensitivity: 0.05mm/h or less withing 10 minutes
• Precipitation intensity measurement: 0.00-999.99mm/h
• Amount of new snow: 0.00-999mm
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