B. Hagner AB products

The Hagner Digital Luxmeter is a small, handy and extremely easy-to-use instrument for accurate measurement of illuminance over a range of 0.1-200,000 lux. With both automatic zeroing and on/off switch, the only controls needed are a four-position range selection switch and a hold button for retaining the display value.

The Hagner Digital Luxmeter, model EC1, is a small, handy and extreme­ly easy-to-use instrument for accurate measurement of illuminance over a range of 0.1-200,000 lux. With both automatic zeroing and on/off switch, the only controls needed are a four-position range selection switch and a hold button for retaining the display value.

The Hagner Digital Photometer, model TP200, is a small, handy and extremely easy-to-use instrument for accurate measurement of illuminance. It has two ranges for measurement of both metric, lux (Ix) and imperial, footcandle (fc) units. The scales are chosen by setting the switch above the digital display. The sensitivity ranges are 0.1-200,000 Ix and 0.01-20,000 fc. With both automatic zeroing and on/off switch, the only controls needed are a four-position range selection switch and a hold button for retaining the display value.

The E4-X Hagner Digital Luxmeter is a precision instrument for measureing illuminance over a range of 0.01-200,000 lux, in the field as well as in the laboratory. The detector, connected to the instrument by a 2 metres flexible lead, is fully cosine corrected for the spectral sensitivity of the human eye in accordance with the CIE standard. The light sensitive device used in the detector is a very stable, long-life silicon photo diode which performs to a high reliability and minimizes the necessity of recalibration.

The Hagner EC1-L 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 Hagner ERP-105 Digital Photometer is a precision instrument designed to measure the luminance of photoluminescent signs and materials over a range of 0.01-20,000 mcd/m², in the field as well as in the laboratory. The light sensitive device is a robust silicon photo diode with long-term stability, which with the new patented amplification system is brought to very high sensitivity. The detector is carefully filtered to produce the same spectral response characteristic as that of the human eye, as defined in CIE-standards. This remote sensor is supplied with 2 metres of flexible cable. Extension cables can also be used for measurements at any desired distance from the detector.

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.

The Hagner ScreenMaster is a small, handy and very easy-to-use instrument for measurement of luminance as well as illuminance over a range of 0.1-200,000 cd/m² and lux, respectively. With both automatic zeroing and on/off switch, the only controls needed are a four-position range selection switch, a hold button for retaining the displayed value and a switch for selection between luminance and illuminance. The ScreenMaster is provided with two detectors, which both are carefully filtered to give a spectral response close to that of the human eye, as defined in CIE standards.

The Hagner Universal Photometer/Radiometer is a combined luminance and illuminance (illumination) meter which is designed for measurements in the field as well as in the laboratory. By application of the different functions of the meter it is also possible to determine such quantities as angles and solid angles (using scales in the viewing field), elevation angles (using optional pendulum), reflection factors (using optional reflection reference), contrasts, transmission and daylight factors, glare indices etc.

The Hagner Multi-Channel Amplifier is designed for use where several simultaneous photometric measurements are required. Such applications include: The measurement of distribution from light sources. Control and regulation of lighting in large buildings, such as theatres, sport arenas etc. Control of switching functions in high voltage switchgear areas. (Detection of arcing.).