Vaisala PWD22 - System Configuration Commands; Conf; Par

USER'S GUIDE ____________________________________________________________________
62 __________________________________________________________________ M210543EN-F
The output is as follows:
SET PRESENT WEATHER PARAMETERS
PRECIPITATION LIMIT ( 40)
WEATHER UPDATE DELAY ( 6)
SYNOP HAZE LIMIT ( 10000)
METAR HAZE LIMIT ( 5000)
RAIN INTENSITY SCALE ( 1.00)
HEAVY RAIN LIMIT ( 8)
LIGHT RAIN LIMIT ( 2)
SNOW LIMIT ( 5.0)
HEAVY SNOW LIMIT ( 600)
LIGHT SNOW LIMIT ( 1200)
DRD SCALE ( 1.0)
where
Precipitation limit
=
The threshold of accumulated particle
magnitudes (in PWD22
/52 internal units) to
report the precipitation state 'on'. A typical
parameter value is 20 to 60 (max. 255). A
smaller value is more sensitive operation
and faster response at the beginning of an
event.
It is also more sensitive to false rain
and snow reports.
Weather update delay
=
A time as multiple of 15 seconds, during
which the instant precipitation type
is not
changed. The intensity may change faster.
Synop haze limit
=
Maximum visibility when mist or haze is
reported.
Metar haze limit
=
Maximum visibility when mist or haze is
reported.
Rain intensity scale
=
It is multiplied by the measured raw
intensity gives the reported precipitation
intensity (optical). The rain amount
is scaled
with the same coefficient because the
amount is a direct integral of
15-second
intensities.
A typical value for the
Rain intensity scale
is
1.0. Since the optimal value depends on the
optical, optoelectronic, and electronic
parameters in a very
complex way, no
applicable factory calibration
method has
been developed yet.
Heavy rain limit
=
The minimum rain intensity (mm/h), when
the intensity is reported as heavy.