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Luminantiemeter EC1-L

EC1-L
Luminantiemeter EC1-L

The Hagner EC1-L Screen Luminance and Film Density Meter is a compact instrument for measuring the luminance of luminous screens, for instance of film and slide viewers, X-ray viewers etc., and for easy calculation of film density. It has both an automatic zeroing and an on/off switch and the only controls needed are a four position range selection switch and a hold button to retain the displayed value.

The opening of the detector, which should be pressed against the screens, has a round aperture with an area of 100mm2. The meter is normally calibrated to read from 1 cd/m2 to 2,000,000 (2x106) cd/m2 in four measurement ranges.

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De Hagner photometer ERP-105 (evacuation route photometer)

ERP-105
Low Light meter ERP-105

De Hagner ERP-105 digitale luminantiemeter is een precisie instrument ontworpen voor het meten van de verlichtingssterkte van producten gebaseerd op fotoluminescentie. Het meetbereik is dan ook van 0,01 tot 20.000 mcd/m2 en is geschikt voor metingen in het veld en in het laboratorium.

De lichtgevoelige sensor is een robuuste silicium fotodiode met een grote stabiliteit, die met de nieuwe gepatenteerde versterker geschikt is gemaakt voor de uiterst gevoelige lichtmetingen.

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Digitale luminantiemeter type L-202

L-202
Luminancemeter 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 Photometer model TLS-420 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.

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