HAGNER SPECIAL LUMINANCE METER L-202
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.
Specification
Detector : Silicon photodiode, Vλ-filtered
Measuring Range : 0 – 200,000 cd/m²
Accuracy : Better than ±3% (± 1 in the last digit)
Power Supply : 9 volt battery type PP3 alkaline (lifetime = approx 110 hours).
Dimensions : 170 x 130 x 80 mm
Weight : 0.8 kg (1.6 kgs incl carrying case)
Part No
1) Hagner Special Luminance Meter Model L-202
