The 5000-300 Background Luminance Sensor is an essential sensor used together with transmissometers or forward scatter meters in RVR assessment systems.
The optoelectronics assembly is mounted inside a weather proof sensor enclosure, with a glass front window and integral hood. The sensor is a high stability silicon photodiode, with a linear response over 7 orders of magnitude of light levels and the sensor characteristic is compensated by a photopic correction filter, to ensure that the reading conforms to the CIE Photopic response within 3%, centred on 555 Nm.
The optoelectronic assembly is temperature controlled, and features a logarithmic characteristic to ensure accurate readings through the whole range of the sensor when used with a standard analogue to digital converter.
Applications
RVR SYSTEMS AT AIRPORTS
Features
WEATHEPROOF SENSOR ENCLOSURE
PROVEN IN ALL ENVIRONMENTS
RANGE 3-30000 CD/SQR METRE
12.5 DEGREE FIELD OF VIEW
CIE PHOTOPIC CORRECTED
