Vaisala Visibility Sensor PWD50

The reliable operation of automated observation networks is essential today. Ocean observation systems need to function in harsh environments, and meteorological services face stringent productivity and performance requirements. The Vaisala Visibility Sensor PWD50 combines robustness, versatility, and reliability to fully meet these demands. The PWD50 measures visibility from 10 meters to 35 kilometers.

Features/Advantages
- Accurate, traceable prevailing visibility measurement
- Upgradeable
- Versatile design, easy to install and integrate
- Excellent durability and reliable performance
- All-weather design reduces maintenance needs

Accurate Visibility Measurement
Calibrated against high-precision transmissometers and utilizing the proven forward scatter measurement principle to determine Meteorological Optical Range (MOR). The sensor's optical design offers excellent contamination resistance: the optics face downward, and the protective hood shields the lens from precipitation, splashing, and dust. This all-weather design helps ensure accurate measurements.

Versatility
The structural design of the PWD50 allows for easy and low-cost integration into existing or new systems. The sensor can be mounted on existing masts in various ways. Electrical connections are made with a single cable. Additional options further enhance versatility, such as masts, various mounting adapters, power cabinets, and modems for long-distance communication.

Excellent Durability and Reliable Performance
The downward-facing sensor hood effectively protects the optical surfaces from contamination, reducing maintenance needs and associated costs. An optional hood heater prevents the accumulation of ice/snow on the optical path.

Proven Track Record
Thousands of PWD series sensors have been installed worldwide. They have undergone rigorous testing procedures. PWD sensors exhibit extremely low failure rates in the field. From oceans to deserts, from airports to roadsides, they demonstrate durability in harsh climates and demanding conditions.