HunterLab ColorFlex EZ - Conditions of Illumination and Viewing; Instrument Performance

ColorFlex EZ User’s Manual Version 2.2
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Conditions of Illumination and Viewing
Light Source
Pulsed xenon
Lamp Life
>1 million flashes
Geometry
45° Illumination/ 0° Viewing
Spectrophotometer
256-element diode array and high
resolution concave holographic grating
Port Diameter/View Diameter
31.8mm (1.25-in) illuminated/
25.4mm (1-in) measured
Specular Component
Excluded
Instrument Performance
Spectral Data
Range: 400-700 nm
Reporting Interval (nm): 10 nm
Bandwidth at Half-height
10 nm
Spectral Resolution
≤3 nm
Photometric Range
0-150% reflectance
Measurement Interval
3 seconds
Measurement Speed
(at 23°C)
≤1.5 seconds
Inter-instrument Agreement
∆E* ≤ 0.15 CIE L*a*b* (Avg) on BCRA II Tile
Set; ∆E* ≤ 0.25 CIE L*a*b* (Max) on BCRA II
Tile Set
Colorimetric Repeatability
∆E* ≤ 0.05 CIE L*a*b* on white tile