| | | Feature | Details | | Model | CS-821N | | Measurement Type | Reflectance, Transmittance (SCI/SCE) | | Wavelength Range | 360 nm to 780 nm | | Wavelength Interval | 10 nm | | Half Width | 5 nm | | Reflectance Range | 0-200%, Resolution: 0.01% | | Transmittance Range | Diffused illumination (d/0 for transmittance) | | Illumination Source | Pulsed Xenon lamp and LED | | Sensor | Silicon Photodiode Array | | Grating Method | Concave Grating | | Sphere Diameter | 152 mm | | Measurement Time | SCI/SCE < 2s; SCI+SCE < 4s | | Measurement Aperture | Reflection: Φ30mm (XLAV), Φ18mm (LAV), Φ8mm/Φ11mm (MAV), Φ6mm (SAV); Transmittance: Φ25mm | | Transmittance Sample Size | Thickness ≤ 50 mm, No limit on width/height | | Repeatability | Standard deviation within ΔE*ab 0.015 for chromaticity value; within 0.1% for spectrum reflectance | | Inter-Instrument Agreement | ΔE*ab 0.2 (BCRA Series II, 12 tiles at 23°C) | | Color Space | Lab, LCh, Hunter Lab, Yxy, XYZ | | Color Index | WI, YI, Tint, Metamerism index, Opacity, Color Strength, etc. | | Color Difference Formula | ΔEab, ΔECH, ΔEuv, ΔEcmc, ΔE94, ΔE00 | | Storage | 8 GB | | Display | 7-inch Touch Screen | | Operating System | Android | | Operating Conditions | Temperature: 5°C ~ 40°C, Humidity: < 80% (at 35°C) | | Storage Conditions | Temperature: -20°C ~ 45°C, Humidity: < 80% (at 35°C) | | Interfaces | RS-232, USB, USB-B | | Other Features | Camera positioning, automatic temperature and humidity compensation, lateral/upward/downward measurement | | Accessories | Power adapter, data cable, USB software, white/black calibration tiles, cuvette, etc. | | Optional Accessories | Heating transmission fixture, small sample clamps, film clamp, fiber test box, and more |
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