Product Description
BRIGHTNESS METER is intended for measuring the Brightness, Opacity and Gloss of the paper. It is photoelectric measuring instrument, which conforms to the international standards. Digital readout of the solid state electronic circuit eliminates the possibilities of reading errors and provides high speed operation.
Product Specifications
Display System: Digital Direct read out.
Measurement: Brightness, Opacity and Gloss
Measurement Area: 10mm Dia.
Light Source: 6V, 1 A. Tungsten Lamp.
Filters (kinds) : Blue, Green, Amber.
Sensor: Selenium Photocell.
Brightness Search Unit: Consist of deep blue gelatine filter #49,
between photo voltaic cell, Infra-red absorbing glass and source of light.
Opacity Search Unit
Consist of green filter of the set of tristimulus filters.
Gloss Search Unit
: Consist Glass filter and measures gloss as specular reflectively at 75o angle of incidence.
Accuracy : ± 1% of FSD.
Power Supply : 220 - 23v ± 5% volts, 50 cycles AC.
ACCESSORIES
: i. White Enamel Standard.
ii. High Reflectance White Enamle Standard.
iii. Polished Black Glass.
iv. Cavity represents a sample of zero reflectance.
The unit has been designed in accordance with TAPPI,
ASTM and ISI (1060 Part I& II) 1960 standards.