PWD12/PWD22 Present Weather and Visibility

Manufacturer: Vaisala

The Vaisala PWD family offers a range of visibility instruments. The PWD uses a optical forward scatter to measure the visibility with a range of 2000 meters for the PWD12 and 20 000 meters in the PWD22. The present weather is available in SYNOP code format.

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Visibility Range	PWD12: 10 - 2 000 m PWD22: 10 - 20 000 m
Accuracy Visibiliry	PWD12: ± 10% at 10 - 2000 m PWD22: ± 10% at 10 - 10 000 m, ± 15% at 10 - 20 km
Precipitation	PWD12: 4 different types of precipitation PWD22: 7 different types of precipitation
Present Weather	PWD12: 39 different 4680 SYNOP codes PWD22: 49 different 4680 SYNOP codes
Data Output Format	RS-232 or RS-485
Operating Temperature range	-40° to +60 °C
Power Supply	12 to 50 VDC
Power Consumption	3 W
Output Parameters	Visibility and Present Weather SYNOP codes

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DATASHEET

Key Specification

Visibility Range	PWD12: 10 - 2 000 m PWD22: 10 - 20 000 m
Accuracy Visibiliry	PWD12: ± 10% at 10 - 2000 m PWD22: ± 10% at 10 - 10 000 m, ± 15% at 10 - 20 km
Precipitation	PWD12: 4 different types of precipitation PWD22: 7 different types of precipitation
Present Weather	PWD12: 39 different 4680 SYNOP codes PWD22: 49 different 4680 SYNOP codes
Data Output Format	RS-232 or RS-485
Operating Temperature range	-40° to +60 °C
Power Supply	12 to 50 VDC
Power Consumption	3 W
Output Parameters	Visibility and Present Weather SYNOP codes

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PWD12/PWD22 Present Weather and Visibility

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