3nh YL4520 Non-Contact Spectrophotometer (400-700nm; 10nm)

3nh YL4520 Non-Contact Spectrophotometer (400-700nm; 10nm)

In industrial color quality control (QC) processes, traditional contact-type colorimeters (which require pressing the measuring aperture directly against the surface) often encounter significant obstacles and can even be impossible when dealing with specific material forms. For products such as wet paint films, undried printing ink, gel-like chemicals, liquid solutions, cream cosmetics, or foodstuffs… pressing a measuring aperture onto the surface would damage the sample structure and contaminate or destroy the instrument’s optical lenses. The 3nh YL4520 non-contact spectrophotometer represents a technological breakthrough—allowing absolutely precise remote color measurement and spectral analysis from a distance without touching the product, enabling comprehensive color digitization for all material states.

Overview of the 3nh YL4520 Non-Contact Spectrophotometer

The 3nh YL4520 is a professional non-contact spectrophotometer developed by the 3nh brand. The device utilizes an internationally standardized 45/0 optical geometric structure (uniform 45-degree circumferential illumination and 0-degree perpendicular signal reception), fully satisfying the strict regulations of CIE No.15 and ISO 5-4 standards.

The exclusive advantage of the YL4520 lies in its smart dynamic measurement capability. A fixed safe distance is constantly maintained between the optical head and the tested product surface. The device utilizes diffraction grating spectral separation technology paired with a high-resolution dual-path CMOS matrix sensor system to extract spectral energy from 400nm to 700nm at a fine 10nm interval, delivering ideally stable measurement results to laboratory standards.

Technical Specifications:

Integrating sphere size: Φ48mm

Light source: Combined LED Light source

Spectrophotometric mode: Concave Grating

Sensor: 256 Image Element Double Array CMOS Image Sensor

Wavelength range: Output 400~700nm/10nm

Reflectance range: 0-200%

Measuring aperture: Φ20mm

Non-contact distance: 7.5mm

Sample height: 0~150mm

Distance adjustment: Manual adjustment (measurement height can be stored)

Power supply: DC 24V, 3A Power Adapter

Dimensions: 330*250*370mm

Weight: approx. 10 kg

Light source lifespan: 5 years, more than 3 million measurements

Data display: 7″ Capacitive Touch Screen

Data port: USB/RS-232

Data storage: 1000 Pcs Standards, 30000 Pcs Samples

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

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

Standard Accessory: Power Adapter, User Manual, USB cable, Standard Calibration Board, Black Calibration Cavity

Outstanding Features of the 3nh YL4520

💡 Non-Contact Measuring Technology – Ultimate Protection for Samples and Equipment

The YL4520 establishes a standard measuring distance from the optical head to the material surface without any direct contact. This intelligent isolation functionality delivers exceptional benefits:

• Completely eliminates the risk of cross-color contamination between different test samples.
• Prevents wet ink, wet paint films, or sticky chemicals from adhering to, contaminating, or scratching the internal optical lenses.
• Specialized for testing sticky, wet, or loose powder samples that are otherwise difficult to fix on standard fixtures.

💡 Standard 45/0 Optical Geometry – The Nemesis of Gloss-Induced Errors

The device implements a rigorously engineered 45/0 optical geometric structure. By illuminating the surface at a 45-degree angle and capturing the signal perpendicularly at 0 degrees, the instrument completely eliminates specular reflection interference caused by surface gloss or roughness. This enables the machine to accurately measure the intrinsic core color of materials, perfectly simulating the natural viewing angle of the human eye during product aesthetic evaluations.

💡 Ultra-Fine Spectral Analysis Capability (400-700nm; 10nm Interval)

Featuring a fine 10nm pitch interval across the entire visible light spectrum, the 3nh YL4520 can perform detailed analysis of the spectral reflectance curves of complex molecular pigments (including custom spot colors – Pantone colors). This spectral analysis technology ensures absolute control over metamerism (a phenomenon where colors look identical under shop-floor lighting but exhibit a discrepancy when moved to natural light).

💡 Ultra-Precise Integrated Focal Sensor and Automatic Distance Measurement

To ensure that non-contact measurements achieve outstanding repeatability, the YL4520 integrates a real-time micro-technology distance measurement sensor. The instrument automatically detects the position, calculates the distance from the lens to the sample, and only triggers the measurement command when the sample sits precisely within the standard optical focal length, completely eliminating variance caused by manual human adjustments.

💡 Visual Target Alignment via Sharp Display Camera Viewfinder

Aligning the measurement center on complex details becomes effortless thanks to the integrated real-time camera positioning system that visually displays the target area on the screen. Technicians can monitor and know exactly where the machine is performing its spectral scan to yield the most objective quality control data.

💡 Flexible Integration into Automated Production Lines

The YL4520 supports high-speed industrial data transfer ports and connects seamlessly with professional PC-based color management software. The instrument can be easily integrated onto automated fixtures over conveyor lines to perform real-time online color measurements for products in motion, automatically exporting professional quality control reports (QC Reports) in PDF/Excel formats for storage or client submission.

Practical Applications of the 3nh YL4520

Thanks to its proprietary remote non-contact measuring technology and highly sensitive 10nm spectral scanning band, the 3nh YL4520 serves as a core instrument in the following fields:

• Paint, Ink & Coating Chemical Industries: Directly testing colors on wet paint films, wet ink freshly discharged from print cylinders, paste/gel chemicals, and highly adhesive colored solvents without deforming the sample surface.
• Food & Agricultural Product Industries: Measuring the color profiles of sauces, chili pastes, fine powders, agricultural grains like coffee beans, condensed milk, or processed foods moving along conveyor belts.
• Cosmetics & Pharmaceutical Industries: Controlling the color uniformity of skincare cream batches, liquid lipsticks, sticky fine powder foundations, or freshly compressed tablets right after die stamping.
• Automated Production Lines: Permanently mounting onto conveyor systems to automatically scan and inspect the colors of molded plastic components, glass panels, or steel preforms continuously without pausing the machinery.