3nh CR7 Spectrophotometer (Basic Edition)

3nh CR7 Spectrophotometer (Basic Edition)

3nh CR7 is an affordable and easy-to-use two-in-one combination of a spectrophotometer and a spectrocolorreader. It is a masterpiece that integrates high precision, high performance, and cost-effectiveness.

3nh CR7 (basic edition) is a portable spectrophotometer developed by 3nh using its own core spectroscopy technology. It utilizes an integrated silicon photodiode array sensor (dual-row 24 groups), an imported white calibration board, and the repeatability ΔE*ab can be easily controlled within 0.1. The powerful performance configuration and excellent inter-instrument agreement of the CR7 make color measurement more professional, while ensuring consistency of measurement data across multiple different devices.

Outstanding Features of 3nh CR7 (Basic Edition)

💡 Economical and Accurate Grating Spectrophotometry Technology

Thanks to the premium optical grating system, the 3nh CR7 Basic analyzes the visible light spectrum in high detail. This enables the device to achieve outstanding stability across consecutive measurements, minimizing errors caused by environmental temperatures and thoroughly preventing metamerism (a phenomenon where two color samples look identical under factory lighting but appear different when brought into natural sunlight).

💡 Integration of Two Practical Measurement Modes: SCI and SCE

Even as a Basic version, the device is still favored with both advanced measurement modes:

• SCI (Specular Component Included): Measures the core intrinsic color of the material, completely eliminating the interfering effects of surface gloss or roughness.
• SCE (Specular Component Excluded): Measures the actual color shades as displayed to the human eye, serving well for product appearance evaluation.

💡 Rich Color Spaces Display and Super-Fast Pass/Fail Evaluation

With just a gentle button press within 1.5 seconds, the sharp LCD screen of the CR7 Basic will provide:

• All popular color spaces: CIE Lab, XYZ, Yxy, LCh, RGB…
• Standard color difference formulas: Delta Eab, Delta E00, Delta E*cmc.
• Smart warning mode: Automatically compares the measured sample with the standard sample and instantly displays “Pass” or “Fail” based on the allowable tolerance, helping factory operators quickly screen out defective components directly on the production line.

💡 PC Software Connectivity and Good Storage Capacity

The device features an internal memory capable of storing thousands of measurement data points. Through the USB-C data transmission port, the CR7 Basic easily connects to advanced color management software on computers, assisting businesses in storing color card libraries (Pantone, RAL), tracking chromaticity trend charts across different batches, and exporting professional quality control reports (QC Reports).

💡 Compact Ergonomic Handheld Design

The CR7 Basic features a minimalist, extremely compact, and lightweight design. The robust body allows technicians to easily grip the device with one hand, making it effortless to carry out on-site inspections in production workshops, warehouses, or on business trips without any hassle.

Technical Specifications:

Integrating Sphere Size: Φ40mm

Light Source: Combined full-spectrum LED light source

Spectroscopic Method: Planar grating

Sensor: Silicon photodiode arrays (dual row, 32 groups)

Wavelength Range: 400~700nm

Measurement Range: L:0~120

Reflectance: Users can check the reflectance at a specific wavelength (default 550nm)

Measuring Aperture: Single aperture: Φ8mm

Focusing Method: Fixed focus

Color Space: CIE LAB, XYZ, Yxy, LCh

Observer Angle: 10°

Illuminants: D65, A, F2(CWF)

Display Accuracy: 0.1

Approximate Measurement Time: 1.5s

Dimensions: LxWxH = 81X71X214mm

Weight: approx. 460g

Power Supply: Lithium battery, 6000 measurements within 8 hours on a full charge

Light Source Lifespan: 5 years with more than 3 million measurements

Display Screen: 3.5-inch TFT true color, capacitive touch screen

Data Interface: USB (for charging), quality management software not supported

Data Storage: 500 standards, 10000 samples

Language: Simplified Chinese, English, Traditional Chinese

Operating Temperature: 0~40℃, 0~85%RH (non-condensing), altitude < 2000m

Storage Temperature: -20~50℃, 0~85%RH (non-condensing)

Included Accessories: Power adapter, data cable, user manual, black and white calibration box, protective cover, wrist strap, Ø8mm aperture

Optional Accessories: USB micro printer, powder test box, support base

Practical Applications of 3nh CR7 (Basic Edition)

Thanks to its compact portability, fast measurement, and best-in-class investment cost, the 3nh CR7 Basic spectrophotometer is widely used in:

• Plastics & Rubber Processing Industry: Controlling the color uniformity of incoming plastic resin batches and molded plastic products such as household appliances, children’s toys, and electronic device shells.
• Printing & Paper Packaging Industry: Checking color deviation of printing ink on cardboard boxes, product labels, and decal stickers to ensure compliance with brand logo colors.
• Paint & Thin-Film Coating: Quickly measuring the color deviation of powder coatings, wall paints, and protective layers on extruded aluminum profiles, mechanical components, and wooden furniture.
• Textile & Leather Industry: Rapidly inspecting color fastness and color consistency across dyed fabric rolls and leather pieces before entering mass production lines.