Brightness & Color meter

Code: N.306.xx


To determine the optical properties such as brightness, opacity, fluorescence, color, color differences and whiteness of tissue, paper, cardboard or similar materials.

The spectrophotometer is a modern, user friendly and multi-option color and whiteness measuring device, ideal for use in the paper and packaging industry. The device contains key figures, tolerance calculations and diagrams for the light sources D65, C, UV. The measured values can be saved directly on the computer or exported via the network and USB port. The specially developed software can be controlled intuitively and is based on Windows. Control and calibration of the device: Light source filtered according D65, C and UV, administration of the sample and standard library.
ISO 2469 – 2471, 3688, 11475 / 11476, 12625-7, 12626-15; TAPPI T519, T525, T527, T534; DIN 53145 – 53147; DIN 54500; etc.



Illumination / Viewing system Reflectance: d:0° (diffuse illumination, 0-degree viewing) conforms to
ISO 2469, JIS P8148, DIN 53145-1 /-2
Light-receiving element Silicon photodiode array (dual 40 elements)
Spectral separation device Diffraction grating
Wavelength range 360 nm to 740 nm
Wavelength pitch 10 nm
Reflectance range 0 to 200%; resolution: 0,01%
Light source 3 x pulsed xenon lamps
Measurement time Approx. 1.5 seconds (for measurements of fluorescent colors, at 9600 bps)
Minimum interval between measurements Approx. 4 seconds for reflectance measuring
Approx. 5 seconds for fluorescent color measuring
Measurement / Illumination area Ø30 mm/Ø34 mm
Inter instrument agreement Within ∆E*ab at 0.2
Repeatability Spectral reflectance: Standard deviation within 0.1%
Colorimetric values: Standard deviation within ∆E*ab 0,2
(condition; white calibration plate measured 30 times at 10-second intervals)
Temperature drift Spectral reflectance: within ±0,10% / °C
Color difference: within ∆E*ab 0,05 / °C
UV Cut filter 400 nm cut-off and 420 nm cut-off
Operating temperature 13 – 33°C, relative humidity 80% or less (at 30°C) with no condensation
Standard for calibration ISO Level IR 3
Color / Color difference scales / Tolerances color, color differences, absolute and delta-values, ΔE for CIE XYZ, xyz,
L﹡, a﹡, b﹡, C﹡, h﹡, u﹡, v﹡, CIE, opacity, fluorescence etc.
General features Statistic std. deviation/mean avg., descriptors, configurable data grids
Measurements Average measurements, remote measurements, automated calibration timeout, manual data input
Database functions Store, retrieve, rename, delete standards and batches, organize samples in a folder structure, unique sample identifiers
Export / Import Export to ASCII file, export result data to EXCEL


Electricity 110 - 230 V, 50/60 Hz
Data transfer USB port, RS 232


Code Article
N.306.TS Spectrophotometer with integrated touchscreen
N.306.PC Spectrophotometer with PC tablet (latest version)