VISIBILITY & PRESENT WEATHER SENSOR SWS-2500 pages

SWS-250 VISIBILITY & PRESENT WEATHER
SWS-250 Visibility & Present
Weather Sensor
Measures visibility and identifies a wide range of
present and past weather conditions
… easy integration with ground based
aviation systems in RVR and METAR applications

Present and past weather codes

WMO Table 4680 & METAR outputs

Instantaneous and averaged visibility outputs

39 WMO 4680 codes

Transmissometer equivalent EXCO output (TEXCO)

Easy integration of Biral ALS-2 ambient light sensor

Simple field calibration

The SWS-250 is optimised for use in aviation
applications where both visibility and extended
present and past weather information is
required.

the use of algorithms developed for Biral’s
flagship HSS VPF-750 present weather sensor.

For ultimate visibility performance the visual
range extends to 75km allowing use in
meteorological observation networks and
research applications.

Easy integration of the Biral ALS-2 ambient light
sensor makes the SWS-250 perfect for use in
aviation applications where both RVR and
METAR data are needed.

The enhanced present weather information from
the SWS-250 is due to the backscatter receiver
which allows detailed precipitation analysis and

Calibration in the field can be accomplished
quickly and simply by a single operator using the
optional calibration kit.

SWS-250
Visibly Better

Biral have been manufacturing and supplying worldwide
high specification Visibility and Present Weather Sensors
since 1997.

tel: +44(0)1275 847787

www.biral.com

DOC101258.01A

The sensor measures: visibility (MOR, EXCO and
TEXCO), fog, haze, drizzle, snow, hail and other
non-frozen precipitation according to WMO
table 4680. METAR coded outputs are also
provided.

Contamination monitoring of all optical windows
is provided as standard. The contamination
status is reported in the main data output and
the
visibility
reading
is
automatically
compensated. A comprehensive self-test
capability ensures the user is always aware of
the sensor’s status.

email: met@biral.com