SWS-250 Visibility and Present Weather Sensor
The Visibility Sensor measuresvisibility and present weather conditions and well as providing information on past weather.
Features
Visibility measurement range 10m to 75km.
MOR and EXCO output.
Serial data output (RS232 & RS422/RS485).
Very low power requirements.
Data Output
The Visibility Sensor is provided with RS-232C and RS422/RS485 serial data outputs as standard for reliable and simple connection to a wide range of monitoring and control systems.
Construction
The Visibility Sensor is a single lightweight unit and can easily be installed by one person.
Maintenance and calibration
The Visibility Sensor is fully calibrated at the time of manufacture.
More information on: http://www.biral.com/meteorological-sensors/visibility-and-present-weather
Gallery
SWS-250 Visibility and Present Weather Sensor
Technical data
| Visibility range |
Defoult 10m to 99.99km |
| Visibility error |
<=4.5% at 600m <=5.0% at 1500m <=5.1% at 2km <=12.5% at 15km <=20% at 30km |
| Measurement principle | forward scatter meter with 39° to 51° angle, centered at 45° |
| Precipitation detection treshold |
rain: 0.015mm/hr |
| Maximum rain rate | 500mm/hr |
| Rain intensity accuracy | <=5% |
| Output data rate | serial 10 to 300sec (selectable) |
| Serial outputs | RS232, RS422 and RS485 |
| Present weather |
42 WMO table 4680 codes 36 METAR present and past weather |
| Sensor power |
9-36 VDC |
| Hood heating power |
24VAC or DC |
| Operating temperature | -40° to +60° |
| Operating humidity | 0 - 100%RH |
| Protection rating | IP66/IP67 |
| Material | Aluminium, Powder paint finis with optional hard anodize base layer |
| Weight | 4.5kg include mounting kit |
| Lenght | 811mm |
| Warranty | 3 years |
| Lifetime | >10 years |
| User confidence check | 6 month recommended |
| Window cleaning | automatic compensation and warnings |
| Field calibration | with optional calibration kit |
| Included with sensor | pole mounting kit (2 x U-bolt), user manual and calibration certificates |
| Additional features |
hood heaters fitted as standard |
| Certification and Compliance | CE certified, EMC compliance with EN61326-1997, 1998, 2001, RoHS and WEEE compliant |
