Vaisala WXT520 User Manual
Page 30
User’s Guide ______________________________________________________________________
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The sensor is also capable of distinguishing hails from raindrops. The
measured hail parameters are cumulative amount of hails, current and
peak hail intensity and the duration of a hail shower.
The precipitation sensor operates in the following four modes:
-
Precipitation Start/End mode:
Transmitter sends automatically a precipitation message 10
seconds after the recognition of the first drop. The messages are
sent continuously as the precipitation proceeds and stopped when
the precipitation ends.
-
Tipping bucket mode:
This mode emulates tipping bucket type precipitation sensors.
Transmitter sends automatically a precipitation message when the
counter detects one unit increment (0.1 mm/0.01 in).
-
Time mode:
Transmitter sends automatically a precipitation message in the
update intervals defined by the user.
-
Polled mode:
Transmitter sends a precipitation message whenever requested by
the user.
More information about the precipitation sensor operation modes can be
found in section