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Manual abstract: user guide VAISALA PWD50DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] www. vaisala. com
Vaisala Visibility Sensor PWD50
Dependable operation of automated observation networks is a must today. Maritime observing systems need to work in inhospitable environments and also meteorological institutes face tough productivity and performance prerequisites. [. . . ] Versatility is further enhanced with various options, such as pole masts, a selection of mounting
adapters, power supply cabinets, and a modem for long distance communication. The PWD50 can also be upgraded with present weather sensing capabilities to PWD52. The upgrade enables a wide range of valuable outputs including present weather, precipitation type, precipitation rate and accumulation. These complement the versatile use of the sensor.
Robust and Dependable
The downward-facing sensor hoods protect the optical surfaces from contamination, resulting in low maintenance needs and costs. The optional hood heaters prevent the buildup of ice and/or snow in the optical path.
Solid Track Record
Thousands of PWD series sensors have been installed all around the world. They have undergone rigorous test programs. In the field, PWD sensors have demonstrated very low failure rates. They have proved their robustness in the harshest climates and most demanding conditions, ranging from offshore to desert and from airport to roadside.
PWD50 reports reliably meteorological visibility from 10 meters to 35 kilometers.
Technical Data
Visibility measurement
Operating principle Measurement range (MOR) Accuracy Forward scatter measurement 10 . . . 35 km
Dimensions
69. 5 cm (27. 36") 19. 9 cm (7. 83")
15 cm (5. 91")
Electrical
Power supply Power consumption Options luminance sensor hood heaters Outputs 12 - 50 VDC (electronics) 24 VAC or 24 VDC for hood heater option 3W . 2 W (24 V) 65 W (24 V) RS-232 or RS-485 (2-wire) Three programmable relay controls (open collector), visibility alarm thresholds and delays configurable, fault alarm relay 0 . . . [. . . ] The reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly prohibited. All specifications -- technical included -- are subject to change without notice.
40. 4 cm (15. 91") [. . . ]
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