Vaisala Weather Transmitter WXT520
Brief specification, as configured at the University of York.
Barometric Pressure
- Range: 600 to 1100 hPa
- Accuracy: ±0.5 hPa at 0 to +30 °C, ±1 hPa at -52 to +60 °C
- Output resolution: 0.1 hPa
Air Temperature
- Range: -52 to +60 °C
- Accuracy: (for sensor element) at +20 °C ±0.3 °C
Wind speed
- Range: 0 to 60 m/s
- Response time: 0.25 s
- Available variables: average, maximum, and minimum
- Accuracy: ±0.3 m/s or ±3% (whichever is greater) at 0 to 35 m/s, ±5% at 36 to 60 m/s
- Output resolution: 0.1 m/s
Wind direction
- Azimuth: 0 to 360°
- Response time: 0.25 s
- Available variables: average, maximum, and minimum
- Accuracy: ±3.0°
- Output resolution: 1°
Relative Humidity
- Range: 0 to 100 %RH
- Accuracy: ±3 %RH at 0 to 90 %RH, ±5 %RH at 90 to 100 %RH
- Output resolution: 0.1 %RH
Rainfall
Rainfall cumulative accumulation is auto reset at midnight. Rainfall duration counting each 10-second increment whenever droplet detected. Rain intensity running one minute average in 10-second steps
- Collecting area: 60 cm2
- Accuracy: Better than 5%[1]
- Cumulative output resolution: 0.01 mm
- Duration output resolution: 10 s
- Intensity range: 0 to 200 mm/h
1. Due to the nature of the phenomenon, deviations caused by spatial variations may exist in precipitation readings, especially in the short time scale. The accuracy specification does not include possible wind induced error.
Hail
Hail cumulative calculated as amount of hits against collecting surface. Hail duration counting each 10-second increment whenever hailstone detected. Hail intensity one-minute running average in 10-second steps.
- Cumulative output resolution: 0.1 hit/cm2
- Duration output resolution: 10 s
- Intensity output resolution: 0.1 hit/cm2h