CNYST Coffee Bean Colorimeter Ultra Large Aperture Coffee Colorimeter with D/8 Including Specular Reflection Light (SCI) SCAA HCCI Roasting Degree Measurement 50mm Ultra-Large Aperture Color Space CIE LAB

Features：

50mm ultra-large aperture, suitable for measuring coffee beans of various irregular shapes

7-inch touchscreen, simple and user-friendly operation

One-click measurement of SCAA, HCCI, and roasting degree

Capable of measuring color values and performing color difference comparison for coffee beans

Technical Parameters:

Illumination Method: D/8, including specular reflection light (SCI)

Integrating Sphere Diameter: 100mm

Light Source: Full-spectrum balanced LED light source

Wavelength Range:400-700nm

Reflectance Measurement Range: 0–200%, resolution 0.01%

Wavelength Interval:10nm

Measurement Aperture: 50mm

Observation Light Source: D65

Observation Light Source: 10° Standard Observer

Measurement Time: Approx. 1 second

Color Space: CIE LAB

Chromaticity Indexes: SCAA value, HCCI index, Roasting Degree

Color Difference Formula: ΔE*ab

Repeatability: Standard deviation ΔE*ab within 0.03 (Condition: after calibration and warm-up, measure the white plate 30 times at 3s intervals and take the average)

Inter-instrument Error: ΔE*ab ≤ 0.4 (Based on the average value of 12 BCRA II color tiles)

Maximum Data Storage: 10,000 records

Dimensions: 202*264*152mm

Weight: Approx. 3kg

Power Supply: 100~240V 50/60HZ

Measurement Mode: Single measurement, average measurement

Light Source Lifetime: 10 years / 2 million measurements

Display: 7-inch IPS full-view LCD screen

System Languages: Simplified Chinese, English

Data Interface: USB

Operating Temperature Range: 5–40°C, relative humidity ≤80% (at 35°C), no condensation

Storage Temperature Range: -20–45°C, relative humidity ≤80% (at 35°C), no condensation

Standard Accessorise: Petri dish, black cavity, white calibration plate, data cable, power cable