JES Elektrotechnik - Visibility Sensor
From Weather
The sensor uses the forward scatter measuring method to determine the meteorological optical range. The transmitter on one side emits light which is scattered by particles in the air. The receiver on the other side receives the share of the light which is scattered at an angle 39° to 51°. The intensity of the received light is used to calculate the meteorological optical range.
Products Details
The unique design ensures that the output is both accurate and reliable in all weather conditions and will not be influenced by local lights sources, even those that flash.
With a measuring range of 10 m to 40 km the sensor is suitable for use in road and aviation applications as well as meteorological observation networks. Whilst the measurement accuracy easily exceeds that specified by ICAO for visibility sensors used in METAR and RVR applications.
Heating of the optical windows and sensor hoods is provided as standard allowing use in the harshest of conditions. Both optical windows are monitored for contamination and the visibility output is automatically compensated to reduce maintenance requirements.
Features
- Visibility sensor using forward scattering to measure the meteorological optical range
- 10 m to 40 km measuring range
- Hood and windows heated
- Comprehensive self-test and maintenance data
- Optical windows monitored for contamination
- Optional ambient light sensor
- RS-232, RS-422 and RS-485 interface
- Automatic or polled mode
- Optional analogue output
Systems
- Visibility sensor to be mounted on pole or wall
- Connection to control system by RS-485, RS-422 or RS-232
- openWIS Plugin
Advantages
- Compact forward scatter design
- Not affected by local lights
- Easily installed by one person
- Hood heating for use in extreme environments
- Flexible integration into control system
- openWIS compatible
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