Vaisala WXT532 - Inputs & Outputs Summary

User’s Guide ______________________________________________________________________
174 _________________________________________________________________ M211840EN-C
- A naturally aspirated radiation shield is applied which can affect readings in calm wind.
- Due to the nature of the phenomenon, deviations caused by spatial variations may exist in
precipitation readings, especially in short time scale. The accuracy specification does not
include possible wind-induced error.
- Precipitation measurement is performed for liquid precipitation.
Table 31 Relative Humidity
Property Description
Range 0 ... 100 %RH
Accuracy (for sensor element) ±3 %RH at 0 ... 90 %RH
±5 %RH at 90 ... 100 %RH
Output resolution 0.1 %RH
PTU Measuring interval 1 ... 3600 s (= 60 min), at one second steps
Table 32 Precipitation
Property Description
Rainfall Cumulative accumulation after the latest
auto or manual reset
Collecting area
60 cm
2
Output resolution 0.01 mm (0.001 in)
Field accuracy for long-term
accumulation
Better than 5 %, weather dependent
Units available mm, in
Rain duration Counting each 10-second increment
whenever droplet detected
Output resolution 10 s
Rain intensity Running one minute average in 10 second
steps
Range 0 ... 200 mm/h (broader range with reduced
accuracy)
Units available mm/h, in/h
Hail Cumulative amount of hits against
collecting surface
Output resolution
0.1 hit/cm
2
, 1 hit/in
2
, 1 hit
Units available
hits/cm
2
, hits/in
2
, hits
Hail duration Counting each 10-second increment
whenever hailstone detected
Output resolution 10 s
Hail intensity One minute running average in 10-second
steps
Output resolution
0.1 hit/cm
2
h, 1 hit/in
2
h, 1 hit/h
Units available
hits/cm
2
h, hits/in
2
h, hits/h