Konica Minolta CR-410C Coffee Colorimeter

Konica Minolta CR-410C Coffee Color Index Meter

Konica Minolta CR-410C Coffee Color Index Meter: The Golden Standard for the Roasting Industry

In the large-scale coffee processing and export industries, the roast degree is a critical factor determining the flavor, aroma, and quality of the final cup of coffee. Manual sorting by the human eye under varying factory lighting easily leads to consistency errors between roasting batches. The Konica Minolta CR-410C coffee color index meter is the leading specialized optical inspection instrument, helping to digitize coffee color standards with absolute accuracy.

Information on Konica Minolta CR-410C Coffee Color Index Meter

The Konica Minolta CR-410C coffee color index meter is designed to measure the color of coffee beans easily and accurately. It can perform these measurements across a wide range of coffee forms: whole bean, roasted, and ground powder.
This colorimeter is engineered specifically for coffee color measurement, eliminating the need for bulky and expensive instruments.

It is also significantly more accurate than attempting to evaluate coffee bean color by the human eye. The CR-410C offers a highly affordable and portable alternative.

The CR-410C utilizes the SCAA specialty coffee index to calculate color, roast level (light, medium, medium-dark, dark), deviation from standard, and PASS/FAIL data.
The CR-410C is capable of measuring whole bean, freeze-dried, ground powder, and instant coffee forms.

This user-friendly device also features much lower maintenance costs compared to its competitors.

The CR-410 measuring head features a large aperture, specially modified software, and a custom-designed sample holder, allowing it to measure coffee color at every stage of the production process using industry-standard measurements.

Features of Konica Minolta CR-410C Coffee Color Index Meter

• Ø 50mm Measurement Aperture: averages data over a large surface area to ensure repeatable results.

• Integrated Backlit LCD Screen: colorimetric data, color difference, and tolerances are clearly displayed and easy to read even in low-light conditions.

• Customized Holder and Sample Cup: the specially designed instrument holder guides one or three samples into position beneath the aperture to ensure repeatable measurements and optimal sample presentation.

• Battery or AC Power: the CR-410C can be powered by AA batteries or AC power to minimize operational downtime.

• Advanced Reporting and Storage via PC: connect the system to the optional SpectraMagic NX software to present data using standard templates or user-defined custom templates.

Technical Specifications

• CR-410 Measuring Head
  • Illumination/viewing system: Wide-area illumination / 0° viewing angle (specular component included)
  • Detector: Silicon photocells (6)
  • Display range: Y: 0.01% to 160.00% (reflectance)
  • Light source: Pulsed Xenon lamp
  • Measurement time: 1 second
  • Minimum measurement interval: 3 seconds
  • Battery performance: Approx. 800 measurements (when using batteries under Konica Minolta’s test conditions)
  • Measurement/illumination area: Φ50 mm / Φ53 mm
  • Repeatability: Within ΔE*ab 0.07 standard deviation (when the white calibration plate is measured 30 times at 10-second intervals)
  • Inter-instrument agreement:
    • ΔE*ab: Within 0.8
    • Average of 12 BCRA Series II color tiles
  • Observer condition: CIE 2° Standard Observer (closely resembles CIE 1931 Standard Observer [x̄2λ, ȳλ, z̄λ])
  • Illuminants: C, D65
  • Display: Colorimetric values, color difference values, PASS/WARN/FAIL display
  • Tolerance judgment: Tolerance for color difference (both box and elliptical tolerances can be configured)
  • Color space / Colorimetric data:
    • XYZ, Yxy, CIELAB, Hunter Lab, L*C*h, Munsell (Illuminant C only), CMC (l:c), CIE1994, Lab99,
    • LCh99, CIE2000, CIE WI-Tw (Illuminant D65 only), WI ASTM E313 (Illuminant C only),
    • YI ASTM D1925 (Illuminant C only), YI ASTM E313 (Illuminant C only),
    • User Index (up to six indices can be registered from a computer)
  • Languages:
    • Operation keys: English
    • LCD screen: English (default)
    • (LCD: German, French, Italian, Spanish, Japanese)
  • Data storage capacity: 1,000 readings (measuring head and data processor store data separately)
  • Target colors for color difference: 100 targets
  • Calibration channels: 20 channels (channel 00: white calibration, channel 01 to channel 19: user calibration)
  • Display screen: Backlit dot-matrix LCD (15 characters x 9 lines + 1 line for icon display)
  • Connectivity:
    • RS-232C compliant (for data processor/PC)
    • Baud rate: 4800, 9600, 19200 (bps); set to 9600 bps at factory shipment
  • Power supply:
    • 4 x AA alkaline or Ni-MH batteries
    • AC adapter AC120V 50-60Hz (for North America and Japan)
    • AC230V 50-60Hz (for worldwide except North America)
  • Dimensions: CR-410 Measuring Head: 102 (W) x 244 (H) x 63 (D) mm
  • Weight: Approx. 570 g (including 4 x AA batteries, excluding RS-232C cable)
  • Operating temperature/humidity range:
    • 0 to 40°C, relative humidity 85% or less (at 35°C) non-condensing
  • Storage temperature/humidity range: -20 to 40°C, relative humidity 85% or less (at 35°C) non-condensing
  • Other features: LCD backlight ON/OFF function (when ON, the backlight stays lit for 30 seconds after the last key press or measurement operation)
• DP-400 Data Processor
  • Display range: Y: 0.01 to 160.00% (reflectance)
  • Measurement time: 1 second
  • Minimum measurement interval: 3 seconds
  • Battery performance: Approx. 800 measurements (when using batteries under Konica Minolta’s test conditions)
  • Illuminants: C, D65
  • Display: Color difference tolerance (box tolerance and elliptical tolerance), for display function only
  • Color space / Colorimetric data:
    • XYZ, Yxy, CIELAB, Hunter Lab, L*C*h, Munsell (Illuminant C only), CMC (l:c), CIE1994, Lab99,
    • LCh99, CIE2000, CIE WI-Tw (Illuminant D65 only), WI ASTM E313 (Illuminant C only),
    • YI ASTM D1925 (Illuminant C only), YI ASTM E313 (Illuminant C only),
    • User Index (up to six indices registered in the measuring head can be used)
  • Languages: Operation keys: English, LCD screen: English (default), German, French, Italian, Spanish, Japanese
  • Data storage capacity: Max. 2,000 data sets (divided into 100 pages). Stored data can be selectively deleted and undone (single data set or all data)
  • Target colors for color difference: For operation function only (100 targets when measuring head is connected; input measured value or target number) (independent of page function)
  • Calibration channels: For operation function only (20 channels when measuring head is connected) (channel 00: white calibration; channel 01 to channel 19: user calibration)
  • Page function: 100 pages
  • Display screen: Backlit dot-matrix LCD (16 characters x 9 lines + 1 line for icon display) with contrast adjustment
  • Printer: 384-dot thermal line printer (can also print graphs). Automatically prints all measurement results (can be configured to disable printing)
  • Statistical function: Maximum, minimum, average values, and standard deviation
  • Automatic measurement:
    • Date and time display: year, month, day, hour, minute
    • Timer: 3 seconds to 99 minutes (Some measurement modes require more than 3 seconds)
  • Connectivity:
    • RS-232C compliant; Baud rate (bps): 19200 fixed (when connected to a PC)
    • When the measuring head is connected, the baud rate is automatically configured to match the measuring head
  • Power supply:
    • 4 x AA alkaline or Ni-MH batteries
    • AC adapter AC230V 50-60Hz (for worldwide except North America)
  • Dimensions: 100 (W) x 73 (H) x 255 (D) mm
  • Weight: Approx. 600 g (excluding batteries and paper)
  • Operating temperature/humidity range:
    • 0 to 40°C, relative humidity 85% or less (at 35°C) non-condensing
  • Storage temperature/humidity range: -20 to 40°C, relative humidity 85% or less (at 35°C) non-condensing
  • Other functions: Calibration function (multi-calibration/manual calibration), auto-averaging measurement function, print ON/OFF function. CR-400 measurement data input function, color space display ON/OFF selection, data protection ON/OFF function. Backlight ON/OFF function. Buzzer ON/OFF function. Display color limit function, remote mode (output of stored data), alphanumeric character input function