Benchtop spectrophotometers
ColorFlex EZ Coffee 咖啡颜色分析仪
Benchtop instrument for laboratory use
Model upgradedDescription
适用于咖啡烘焙、研磨和速溶咖啡的专用颜色测量解决方案。
Specifications
▶Measurement
Measurement Principle
Port up or Port forward dual-beam benchtop spectrophotometer /colorimeter
Geometry
Directional annular 45° illumination / 0° viewing
Spectrophotometer/Colorimeter
Sealed optics; 256-element diode array and a 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
Spectral Range
400 nm - 700 nm
Spectral Resolution
< 3 nm
Effective Bandwidth
10 nm equivalent triangular
Reporting Interval
10 nm
Photometric Range
0 to 150 %
Light Source
Pulsed Xenon Lamp
Flashes per Measurement
1 flash
Lamp Life
> 1 million flashes
Measurement Time
< 1 second from button push to measurement 2 seconds from button push to data display
Minimum Interval Between Measurements
3 seconds
Standards Conformance
CIE 15:2004, ISO 7724/1, ASTM E1164, DIN 5033, Teil 7 and JIS Z 8722 Condition C
Standards Traceability
Instrument standard assignment in accordance with National Institute of Standards and Technology (NIST) following practices described in CIE Publication 44 and ASTM E259
▶Performance
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 (20 Readings)
▶Firmware
Data Views
Coffee Roast, Color Data, Color Difference Data, Tristimulus Color Plot, Spectral Data, Spectral Difference Data, Spectral Plot, Spectral Difference Plot
USB Flash Drive Features
Backup of Setups and Data, Setup Transfer to Multiple Units, Data Export to Excel
Other Features
Pass/Fail, Average Multiple Readings, Search for Closest Standard
Illuminants
A, C, D50, D55, D65, D75, F2, F7, F11
Observers
2° and 10°
Color Scales
CIE L*a*b*, Hunter Lab, CIE L*C*h, CIE Yxy, CIE XYZ
Color Difference Scales
∆L*a*b*, ∆Lab, ∆L*C*H, ∆L*C*h, ∆Yxy, ∆XYZ
Color Difference Indices
∆E*, ∆E, ∆C*, ∆C and ∆Ecmc
Indices and Metrics
E313 Whiteness and Tint (C/2° or D65/10°), E313 Yellowness (C/2° or D65/10°), D1925 Yellowness (C/2°), Y Brightness, Z%, 457 nm Brightness, Opacity, Color Strength (Average and Single Wavelength), Gray Change, Gray Stain, Metamerism Index, Shade Number
Ground Coffee Color Model Only
Tomato Color Scores: HCCI (HunterLab Coffee Color Index values), SCAA Number, SCAA Roast Classification, colorimetric and spectral data
Languages
Chinese, English, French, German, Italian, Japanese, Spanish
▶Physical/Electrical
Dimensions
Height: 16 cm (6.3 in.); Width: 13 cm (5.1 in.); Depth: 36 cm (14.2 in.); Weight: 4.5 kg (9.9 lbs)
Display
7.1 cm x 5.4 cm (2.8 in. x 2.1 in.) backlit color LCD
Interface
3 USB 2.0 ports
Power
100 to 240 VAC 47 to 63 Hz
Operating Environment
10° to 40°C (50° to 104° F), 10 % to 90 % RH, noncondensing
Storage Environment
-20° to 65°C (-5° to 150° F), 10 % to 90 % RH, noncondensing
Standard Accessories
Calibrated instrument white tile; Certificate of traceability; Black glass; Green diagnostic tile; Universal AC adaptor; Computer interface cable; USB flash drive; ColorFlex EZ User guide
Images
Selection and learning
If you are still comparing models, scenarios, and workflows, these articles can help.
Selection guide
Benchtop vs Portable Spectrophotometers
Start from use case, sample type, and management goals to decide which instrument family fits best.
Read more->FAQ
What Is the Difference Between Benchtop and Portable Instruments?
Understand positioning, measurement method, and daily usage differences.
Read more->FAQ
What Should Be Checked During Daily Calibration?
Keep the instrument traceable and verifiable over the long term.
Read more->
