HM-150 Hazemeter

The HM-150 is designed to measure regular luminous transmittance, diffused luminous transmittance, and haze. It is ideally suiioted to make these measurements for light transmissible materials such as plastics, films, glass and liquid. Employing a double-beam system, highly accurate and repeatabile transmittance and haze measurements can be realized.

Internal switchable filters tune the light source to the spectral characteristics of CIE standard photometric observer and CIE standard illuminant D65, but also the combination including CIE standard illuminant A. Personal computer is used for interface, calculation, and control. Several useful functions, such as average calculation, and output by printer are available.

The HM-150 conforms to several national and international haze standards, including:

• IS0 14782 Determination of haze for transparent materials
• IS0 13468-1 Determination of the total luminous transmittance of transparent materials
• ASTM D1003 Haze and Luminous Transmittance of Transparent Plastics (D1003 is approximated)

Schematic Diagram

1 Light Source Lamp 2 Two Branch Fiber 3 Reference Shutter 4 Measurement Sutter 5 D65 5 Convertible Switch to D65 & A Illuminant 6 Lens 7 Entrance Port Aperture	8 Exit Port Aperture 9 White Plate 10 Detector 11 Reference Fiber 12 Integrating Sphere 13 Light Trap Box 14 Sample