Degreane - Model T220 -RVR Transmissometer Sensor

The TR30LED transmissometer is a visibility sensor designed for aeronautical applications. It measures the transmission ability of the atmosphere (TAA) and calculates the meteorological optical range (MOR). When associated with both a luminancemeter and a runway light intensity transmitter, the TR30LED allows the calculation of both the runway visual range (RVR) and the aeronautical visibility (AV), as defined by the ICAO standards.

The TAA and MOR values are determined by the measurement of the dimming of a LED based white source (modulated at 30 Hz) through the atmospheric layer between the transmitter and the receiver.

The design choice and the quality of the assembly allow operating on the full range with a single base (30 m) whatever the type of the airport (CAT I to CAT III c), without interruptions and with minimal maintenance. The TR30LED integrates an automatic calibration in order to compensate the drift caused by the dust. A remote digital display shows the measurement data.