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Biral sws present weather & visibility sensor
100 Weather Sensor SWS.10.HV.J.S
the SWS sensor is delivered in sturdy, recyclable foam-filled packaging with:
- pole mounting kit (U bolt, saddle and bolts)
- documentation (manual, calibration certificate)
SWS 100 monitors roadside weather to identify fog, haze, rain, drizzle and snow
. . . integrate into ITS controls and / or switch warnings automatically
measurement range < 10 m - 2 km (1.2 miles)
* instantaneous and averaged visibility outputs
* identifies precipitation type
* date and time stamp on data strings
* 2 relays to switch equipment and 1 fault relay
The SWS-100 model is designed primarily for use on roads, motorways and in tunnels to identify and warn of fog, haze, rain, drizzle, snow or other reductions to visibility.
The choice of digital (serial) and analogue outputs provides the flexibility to connect to a wide range of ITS (Intelligent Transport Systems) or other data controllers.
The unique ability to switch equipment using a fog relay and /or a precipitation relay is a feature of the SWS series. For example you can set the relays to automatically switch a speed reduction sign when the visibility is below 100 m and then switch an additional danger of aquaplaning alert when it rains.
This is a quality sensor at an affordable price (less expensive than competitive sensors) with a remote monitoring and self test system to keep maintenance call outs to a minimum. Therefore, the savings realised from installing and running a network of SWS-100s can be substantial.
The SWS is lightweight, portable and easily pole mounted (for UK road use ask about our optional Post Adaptor to mount the sensor to Highways Agency posts).
SWS sensors use the same technology as the high specification HSS range of visibility and present weather sensors which have been in demand world-wide for over 20 years.
Visibility and precipitation measurements
measurement range: < 10 m - 2 km (1.2 miles) in 10 m increments
measures: visibility (MOR - Meteorological Optical Range) reductions caused by : fog, haze, smoke, sand, drizzle, rain, snow and general precipitation
measurement accuracy: <=10% maximum
measurement principle: forward scatter meter with 45
output rate (seconds): 10 to 300 (selectable)
* single sensor connection only, not multi-drop
analogue outputs: 0-10 V (4-20 mA or 0-20 mA optional)
switching relays (providing flexible configurations):
* Relay 2 = visibility (user selectable threshold)
* Relay 3 = precipitation yes/no or snow yes/no or 2nd visibility
outputs: selected WMO 4680 table codes
power supply: 9-36 VDC (AC with optional mains adaptor)
- in normal running (no-dew window heaters ON)
- with no-dew window heaters OFF
- using optional de-icing hood heaters at 34 W
de-icing hood heaters: in addition to the standard no-dew window heaters
analogue outputs: 4-20 mA or 0-20 mA in addition to the 0-10 V output
extra self test mode: transmitter window contamination monitoring capability
operating humidity: 0 - 100% RH
material: powder coated aluminium
self test functions: with maintenance warnings
user confidence check: 6 months (suggested)
window cleaning: 3 months (suggested)
the SWS sensor is delivered in sturdy, recyclable
calibration kit (for user confidence checks)
hard shell transit case (useful if the sensor is to be moved frequently)
post adaptor (for mounting to HA posts)
