BWS500 measurements - Xweather Protect, Xweather Optimize, Xweather Observe

Xweather Protect, Xweather Optimize, Xweather Observe Measurement Parameters and Calculations
Product status
Document code
M213086EN-E
ft:locale
en-US
Product
Xweather Protect, Xweather Optimize, Xweather Observe
Document type
User guide

The following tables explain the measurements available in Vaisala cloud from BWS500.

AQT530 and AQT560 measurements
Measurement Unit Update interval Reported value Sampling
Nitrogen oxide (NO) ppb 1 minute 1‑minute average Every 5 seconds
Nitrogen dioxide (NO2) ppb 1 minute 1‑minute average Every 5 seconds
Ozone (O3) ppb 1 minute 1‑minute average Every 5 seconds
Carbon monoxide (CO) ppb 1 minute 1‑minute average Every 5 seconds
Particulate matter PM10 µg/m3 1 minute 1‑minute average Every 1 minute
Particulate matter PM2.5 µg/m3 1 minute 1‑minute average Every 1 minute
Particulate matter PM1 1 µg/m3 1 minute 1‑minute average Every 1 minute
Air pressure hPa 1 minute 1‑minute average Every 1 minute
Air temperature °C 1 minute 1‑minute average Every 1 minute
Relative humidity %RH 1 minute 1‑minute average Every 1 minute

The air quality index (AQI) is calculated according to both European Air Quality Index (EEA) and U.S. Air Quality Index (US AQI). The air quality gain and offset linear correction can be also applied to AQT530 and AQT560 measurements.

Dominant pollutant values for EEA and US AQI are also calculated and available as coded numbers as follows:
  • 0 = CO
  • 1 = NO2
  • 2 = O3
  • 3 = SO2
  • 4 = PM10
  • 5 = PM2.5
GMP252 measurements
Measurement Unit Update interval Reported value Sampling
Carbon dioxide (CO2) ppm 1 minute Instant Every 2 seconds
Air temperature °C 1 minute 1‑minute average Every 1 minute
SR05 measurements
Measurement Unit Update interval Reported value Sampling
Short-wave total radiation W/m2 1 minute Instant Every 1 minute
WXT530 series sensor measurements
Measurement Unit Update interval Reported value Sampling
Air pressure hPa 1 minute 1‑minute average Media filtered instants every 10 seconds
Air temperature °C 1 minute 1‑minute average Media filtered instants every 10 seconds
Relative humidity %RH 1 minute 1‑minute average Media filtered instants every 10 seconds
Rain accumulation mm 1 minute 24-hour sum Cumulative accumulation since UTC ±00:00
Rain intensity mm/h 1 minute Instant Running 1‑minute rainfall in 10‑second steps
Wind direction ° 1 minute 10‑minute average In resolution of 250 ms samples
Wind speed m/s 1 minute 10‑minute average In resolution of 250 ms samples
Wind speed, max. (gust) m/s 1 minute 3‑second rolling maximum over last 10‑minute average speed 12 samples in resolution of 250 ms
1 In AQT530, PM1 is used as an indicative measurement.