HunterLab ColorFlex EZ Citrus, User Manual, Page: 52 / 66

ColorFlex EZ Citrus Citrus User’s Manual Version 2.0
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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
31.8 mm (1.25 in) illuminated/
25.4 mm (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
Photometric Range 0-150% reflectance
Measurement Speed (at
23°C)
≤1. 0 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
Citrus Color Citrus Number, Citrus Redness, Citrus
Yellowness