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YL4668 Inline spectrophotometer

Elevate Color Precision for Industry-Leading Quality Assurance

YL4668 Spectrophotometer is a high-precision device for accurate color measurement and analysis, Professional-Grade Solution for Reflective Color Measurement & Matching. It enables precise spectral data collection across visible wavelengths, supporting color formulation, quality control, and standard creation in industries, Non-contact measure for liquids, pastes, powders and gels. 


Key Highlights

  • D/8 Optical Geometry

  • Non-contact measure for liquids, pastes, powders and gels;

  • 256-pixel dual-array CMOS image sensor;

  • Measurement speed of just 0.2 seconds, suited for on-line testing use

  • Good repeatability ΔEab ≤0.03; Inter-instrument Error ΔE*ab ≤0.2;

  • Ideal for cosmetics, fruits and vegetables, food hygiene, plastic electronics, paint, ink, small and odd-shaped samples color measuring

YL4668 Inline spectrophotometer Instructions Operating Manual YL4668 Inline spectrophotometer PDF
This YL4668 Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

Proven technology, unmatched performance

The YL4668 spectrophotometer is a color measuring instrument that adopts D/8 (diffuse illumination, 8°direction reception, SCI includes specular reflection light) standard color measurement instrument, non-contact test between test probe and tested sample, to achieve liquid and sauce , powder and other non-contact precision color measurement. The simple probe design allows this product to be placed anywhere on the automated production line for precise color measurement and color quality control. It is widely used in cosmetics, fruits and vegetables, food hygiene, plastic electronics, paint and ink, printing, ceramics and other industries. It can be used for fluorescent sample measurement. Its unique innovative design can not only provide non-contact measurement solutions directly from the production line, but also ensure stable and high-precision measurement results.


Features of non-contact spectrophotometer


256-pixel dual-array CMOS image sensor

Higher optical resolution ensures the measurement speed, accuracy, stability and consistency of the instrument, mastering the core technology, and achieving complete compatibility on the same platform with international standards.

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Using full-spectrum LED light source

The full-spectrum LED light source ensures sufficient spectrum distribution in the visible light range, avoids the lack of LED spectra in specific bands, and ensures the accuracy of the instrument's measurement results and low-cost maintenance.

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Concave grating spectroscopy technology

Using concave grating spectroscopy technology, it has higher resolution and makes color measurement more accurate.

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Higher Performance, Higher quality

Using industrial-grade real-time processing MCU, supporting Bluetooth 5.0 transmission is more stable and reliable.

Multi-color measurement space and observation light source

Provide CIE LAB, XYZ, Yxy, LCh, CIE LUV, Musell, s-RGB, HunterLab, βxy, DIN Lab99 color space, and D65, A, C, D50, D55, D75, F1, F2 (CWF), F3, F4, F5, F6, F7 (DLF), F8, F9, F10 (TPL5), F11 (TL84), F12 (TL83/U30) multiple observation light sources can meet the special measurement requirements under different measurement conditions.

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High Efficient


YL4668 achieves the high precision and high measurement speed. So it is suited for on-line testing use. A complete measurement cycle only needs 200 milliseconds, and more than 400,000 samples can be measured per day. Help customers establish and improve an enterprise's color management system and quality control system.

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3NH offers a broad range of spectrophotometer models tailored to diverse applications in both industry and research. Additional instruments color measurements for chemicals, pharmaceutical products, cosmetics, petroleum products, aromas, biofuels, and more.



YL4668 Non-Contact Inline Spectrophotometer Technical Parameters

                Model                YL4668
                Optical Geometry                D/8 (diffuse illumination, 8° direction reception, SCI includes specular reflection light);
Comply with standard CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724-1, ASTM E1164, DIN5033 Teil7, GB 2893, GB/T 18833
                Features                Non-contact test between test probe and tested sample, to achieve the non-contact precise color measurement of liquid, sauce, powder, etc. It is mainly used for accurate color measurement and quality control of automated production lines; the measurement time can be adjusted from 0.2 to 1.5 seconds, and the software functions can be customized (additional customization function needs to be evaluated).
                Light Source                Full spectrum LED light source, UV light source
                Spectrophotometric Mode                Concave Grating
                Sensor                256-pixel dual-array CMOS image sensor
                Wavelength Range                400~700nm, 10nm output
                Measured Reflectance Range                0-200%
                Measuring Aperture                Φ20mm (Φ10mm can be customized)
                Non-contact distance                3.0mm (±0.2mm)
                Sample height                Unlimited thickness, only test probes are used
                Distance adjustment method                Fixed height according to actual sample
                Measurement mode                Software customization function (additional customization function needs to be evaluated)
                Locating                Camera locating
                Color Space                CIE LAB,XYZ,Yxy,LCh,CIE LUV,Musell,s-RGB,HunterLab,βxy,DIN Lab99
                Color Difference Formula                ΔE*ab,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00,ΔE（Hunter），DINΔE99
                Other Colorimetric Index                WI(ASTM E313，CIE/ISO,AATCC,Hunter)，
YI(ASTM D1925，ASTM 313),
Metamerism index MI,
Staining Fastness, Color Fastness, Strength, Opacity
                Observer Angle                2°/10°
                Illuminant                D65,A,C,D50,D55,D75, F1,F2(CWF),F3,F4,F5,F6, F7(DLF),F8,F9,F10(TPL5), F11(TL84),F12(TL83/U30)
                Displayed Data                Spectrogram/Values, Samples Chromaticity Values, Color Difference Values/Graph, Color simulation, pass/fail result, display tolerance can be set
                Measuring Time                As fast as 0.2 seconds
                Data Storage                Sample mode + quality control mode 18,000
                Continuous statistical mode 30,000, totaling no more than 48,000
                Repeatability                In the optimal measurement mode (when a single measurement time is 1.5 seconds):
Spectral reflectance: within 0.1% of standard deviation:
Chromaticity value: ΔE*ab within 0.03(After the instrument is warmed up and calibrated, measure the average value of the whiteboard 30 times at an interval of 5s)
                Inter-instrument Error                Within ΔE*ab 0.2(Measured average value of 12 tiles of BCRA series Ⅱ)
                Measurement method                Single measurement, average measurement (2~99 times)
                Dimension                200*200*160mm (test probe)
                Weight                About 3Kg (only test probe)
                Power                AC 24V, 3A Power adapter power supply
                Illuminant Life Span                5 years, more than 3 million times measurements
                Display                7-inch TFT color LCD, Capacitive Touch Screen
                Data Port                USB, Bluetooth®5.0
                Language                Simplified Chinese, Traditional Chinese, English
                Operating Environment                0~40℃, 0~85%RH (no condensation), altitude: less than 2000m
                Storage Environment                -20~50℃, 0~85%RH (no condensation)
                Standard Accessory                Power adapter, manual, data cable, standard calibration board, black calibration box
                Notes                This model is specially suitable for streamlined production lines, in-depth function customization will incur additional customization costs


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FAQs About YL4668 Spectrophotometer

Yes, we can offer Spectrodensitometer quality certification issued by our lab free of charge, or issued by third-party international inspection Organizations with extra charge, please contact us for confirmation.

Now our testing machines have been sold to more than 80 countries, like USA, Canada, Russia,UK, Italy, Germany, European , India, Pakistan, Philippine, Singapore, Malaysia,Thailand , Vietnam, Korea,Saudi Arabia,Brazil...and so on. We sell to the global market.

With centers in 20 countries, including India, Japan, USA, Germany, Singapore, China, South Korea, and Taiwan, Threenh Technology’ s service network aims to provide customers with convenient access to service globally. With over 1 million measuring instruments sold, our expertise is our greatest asset, enabling us to work with our customers on solutions to complex measurement challenges.

The machine used to measure color is primarily called a colorimeter or spectrophotometer. 

Spectrophotometer: The most common and precise type. It analyzes light reflected/transmitted by an object across the visible spectrum to quantify color accurately. A spectrophotometer can measure colors on smooth or matte surfaces, as well as textured, glossy, mirror-like surfaces, and special effect colors. It measures the reflected light of a sample at a fixed angle (e.g., 45˚) or captures light reflected at all angles to calculate color measurements that closely match what the human eye perceives. Additionally, similar to how humans flip a sample to view colors from different angles, a spectrophotometer is suitable for measuring a variety of materials and surface characteristics. Widely used in industries like paint, textiles, plastics, Chemicals, Pharmaceuticals, and printing. 

Colorimeter: Also called photoelectric integrating colorimeter, a simpler, more cost-effective option. It measures color based on three primary colors (RGB) and is suitable for basic color matching needs. A photoelectric integrating colorimeter is a color measurement device based on the photoelectric integration principle. It directly measures the tristimulus values XYZ of an object's color using three color filters (red, green, blue) and silicon photocells as three sensors. The color measurement principle of this instrument imitates the human eye's mechanism of perceiving the three primary colors (red, green, blue). It corrects the relative spectral sensitivity of the detector through color filters to match the CIE-recommended spectral tristimulus value functions x(λ), y(λ), and z(λ).

Spectrocolorimeter: Combines the functions of spectrophotometers and colorimeters, offering both spectral data and color space values for comprehensive analysis.

A colorimeter is sufficient for basic, routine color checks, while a spectrophotometer is needed for precise, comprehensive color analysis—here’s the clear breakdown:

When a Colorimeter is Sufficient

  1. Simple color matching needs: Ideal for checking if a sample matches a predefined standard (e.g., basic paint batches, plastic parts with solid colors).

  2. Consistent lighting conditions: Works well when measurements are done under fixed, standard light sources (no need to account for varied light effects).

  3. Cost-sensitive, high-volume tasks: Perfect for production lines requiring fast, low-cost color checks without advanced data analysis.

When to Use a Spectrophotometer

  1. Precise color quantification: Necessary for measuring Lab values (lightness, red-green, yellow-blue axes) or detecting subtle color deviations (critical for automotive coatings, high-end textiles).

  2. Complex color analysis: Required for metallic/pearlescent finishes, transparent materials, or samples with gloss/texture variations.

  3. Compliance and documentation: Essential when precise color data (spectral curves) is needed for quality audits, regulatory compliance, or brand color standardization.


Always a pre-production sample before mass production; Always final Inspection before shipment; 

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