Hagner - Model L-202 - Special Luminance Meter - Datasheet

The Hagner Special Luminance Meter, model L-202, is a small, portable and simple but functional instrument, specially designed for measurement and evaluation of the luminance at road tunnel entrances and their surroundings. The measuring range is 0 - 200,000 cd/m². The L-202 is used to determine what measuring range is required for a stationary Tunnel Photo-meter before it is ordered. With a measuring angle of 20º it measures, at a certain position from the tunnel entrance, the average luminance of the same area as a standard Tunnel Photometer would do at the same position. The displayed value can be locked by means of a hold button. The built-in detector is carefully filtered to give a spectral response close to that of the human eye, as defined in CIE standards. If required the L-202 can be mounted on a tripod by means of the standard camera thread (¼``) in the chassis.