ColorFlex EZ Coffee Spectrophotometer/Colorimeter HunterLab America

Easy-to-use. Compact. And Increased Performance. ColorFlex EZ Coffee Spectrophotometer/Colorimeter gives you unsurpassed confidence and trust in your outcomes.

Easy-to-use. Compact. And Increased Performance. ColorFlex EZ Coffee Spectrophotometer/Colorimeter gives you unsurpassed confidence and trust in your outcomes.

The easy-to-use ColorFlex EZ Coffee is specifically built to meet and exceed your needs in measuring the color of roasted coffee grounds. It makes it easy to define 

the degree of roasting. Coffee color scales provided in firmware include: HunterLab Coffee Color Index (HCCI), SCAA Number & SCAA Roast Classification.

Product Speciation :

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 E259J

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)

 IS Z 8722 Condition C

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:

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