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Spectrophotometer ST50

Precision Color Reader and Checker Testing Device

Color matching tool ST50, portable color reader and checker for color matching, precision testing device for painters and designers, used to measure and evaluate color for a variety of textile, printing and industrial applications. As a compact, portable color measurement device designed for fast and accurate color analysis. Equipped with a single-beam optical system, it offers reliable performance for basic color evaluation in various industries.


Key Highlights

  • Double row 20 groups sensor

  • Pectral range of 400–700 nm

  • D/8 geometry (SCI/SCE)

  • One aperture: 8mm or 4mm optional

  • Good repeatability (ΔEab ≤0.03) and inter-instrument agreement (ΔEab ≤0.2)

  • Ideal for on-site color inspections in industries such as paints, plastics, and textiles

Spectrophotometer ST50 Instructions Operating Manual Spectrophotometer ST50 PDF
This ST50 Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

Test your Samples for Accurate Color with the ST50 Spectrophotometer

ST50 a precise, visual instrument for rapid and accurate testing for color. The twin sister ST series of 3NH TS series is launched grandly, inherits the core technology of large-area array sensor and grating splitting in the field of color detection, and acutely analyzes the strong and weak light in 300-1100nm band. Our TS series has always been imitated, but never surpassed. TS series since its birth has been adhering to the quality first, with the purpose of quality, after years of continuous improvement, we can proudly say: ST series, let the color measurement is very accurate! In the future, 3nh will continue to practice the mission of “specialized and innovation” enterprise and high-tech enterprise, overcome difficulties and continue to innovate on the road of testing instruments, so that our partners can have a wonderful high accuracy and quality measurement instrument.

Spectrophotometer ST50 is a spectrophotometer developed by 3NH TS series core technology, using built-in photodiode array (double 20 groups) sensors, imported whiteboard, while taking into account the measurement speed and convenience of operation. The repeatability delta E* AB of ST50 spectrophotometer is easily controlled within 0.03, and the Inter-instrument error delta E* AB is controlled within 0.2, to make the measurement more accurate. And the test data can be used for accurate color analysis and transmission in the laboratory.

         

ST50 Application

The twin sister ST series of 3NH TS series is launched grandly, inherits the core technology of large-area array sensor and grating splitting in the field of color detection, and acutely analyzes the strong and weak light in 300-1100nm band. Our TS series has always been imitated, but never surpassed. TS series since its birth has been adhering to the quality first, with the purpose of quality, after years of continuous improvement, we can proudly say: ST series, let the color measurement is very accurate! In the future, 3nh will continue to practice the mission of "specialized and innovation" enterprise and high-tech enterprise, overcome difficulties and continue to innovate on the road of testing instruments, so that our partners can have a wonderful high accuracy and quality measurement instrument.

ST50 widely application plastic electronics, paint ink, textile and garment printing

         

ST50 Standard Features Include the Following:

Large area photodiode array (dual 20 arrays) sensor

ST50 spectrophotometer is one type of colorimetric measuring instruments used to capture, analyse, and communicate color. A larger area of double 20 array sensor, strong light saturation, weak light sensitivity and a wider spectrum response range, to ensure the instrument measurement speed, accuracy, stability and consistency, independent core technology, and international standards of the same platform, to achieve complete compatibility.

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Adopt D/8 structure and SCI/SCE mode

Spectrophotometer ST50 uses a widely international use D/8 optical structure, SCI/SCE (Specular Component Included/Specular Component Excluded) synthesis technology, support SCI+SCE at the same time fast measurement, test time about 1.5 seconds.

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Combination of full spectrum LED light source and UV light source

The use of 360-700nm full spectrum LED light source ensures sufficient spectral distribution in the visible light range, avoiding the spectral loss of specific bands, strong light will not be saturated, weak light is more sensitive, and fluorescence samples can be easily measured.

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Camera positioning can clearly observe the measured area


The ST50 spectrophotometer has built-in camera. Through the real-time scene-taking of the camera, it can accurately determine whether the measured part of the object is the target center, which improves the measurement efficiency and accuracy.

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Non-contact automatic calibration, professional imported white board, more wear-resistant, dirty, stable


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Place the base safely to ensure that the whiteboard is not dirty.


Offer 8 kinds of color measurement space and 41 kinds of observation light source

CIE LAB,XYZ,Yxy,LCh,CIE LUV, S-RGB, βxy, Munsell(C/2) color spaces, 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), B, U35, NBF, ID50, ID65, LED-B1, LED-B2, LED-B3, LED-B4, LED-B5, LED-BH1, LED-RGB1, LED-V1, LED-V2, LED-C2, LED-C3, LED-C5. It also can be customized light source (A total of 41 kinds of light source, Partially realize through the PC software /APP software), and can meet the special measurement requirements under different measurement conditions.

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Many color indexes


Spectrophotometer ST50 not only provides the commonly used color measurement, but also provide spectral reflectance, WI (ASTM E313, CIE/ISO, AATCC, Hunter, TaubeBergerStensby), YI (ASTM D1925, ASTM 313), Metamerism index of Mt, Staining Fastness, Color Fastness, Color Strength, Opacity, 8 degree gloss, 555 tone classification, Carbon (My,dM), color density CMYK(A,T,E,M), Tint, Munsel chroma index (part of the function is realized by PC software).




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Excellent instrument errors and repeatability

ST50 is a small, portable and cost-effective wireless (battery-powered) contact spectrophotometer. It provides sufficient information for color analysis. Ensure the consistency of measurement data of multiple equipment, to be used for color matching and accurate color transfer. 

 For fast and simple, and accurate color testing, add ST50 to quote or order online now! Ensure accurate color measurement from anywhere with ST50 Multiparameter Portable Spectrocolorimeter.

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Support Huawei Harmony OS, Android, IOS, Wechat applets, Windows programs

This extensive system support allows seamless integration across various platforms, whether you're on a mobile device or at your desk, making data transfer and device interaction a breeze.

Get a Trial of ST50 Spectrophotometer
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Request for quotation ST50 spectrophotometer


Need advice, additional technical information, or simply to discuss a ST50 spectrophotometer measurement project? We invite you to fill out the contact form below, specifying your request in the "comments" field. In any case, all our teams, experts in measurement instruments for over 20 years, are at your disposal as soon as possible.


Specification

ModelST50 spectrophotometer
Optical GeometryD/8 (diffused illumination, 8-degree viewing angle)
SCI (specular component included)/SCE (specular component excluded) ;excluded UV light source
Conforms to CIE No.15,GB/T 3978,GB 2893,GB/T 18833, ISO7724-1, ASTM E1164, DIN5033 Teil7
CharacteristicAdopt 3nh TS series core technology, customized measuring aperture
It is used for precise color measurement and quality control in plastic electronics, paint and ink, textile and garment printing and dyeing, printing, ceramics and other industries, and for fluorescent sample measurement.
Integrating Sphere SizeΦ40mm
Light SourceCombined full spectrum LED light source
Spectrophotometric ModeFlat Grating
SensorSilicon photodiode array (double row 20 groups)
Wavelength Range400~700nm
Wavelength Interval10nm
Measured Reflectance Range0-200%
Measuring ApertureOne aperture: 8mm or 4mm optional
Specular ComponentSCI&SCE
Color SpaceCIE LAB,XYZ,Yxy,LCh,CIE LUV,s-RGB,βxy,Munsell(C/2)
Color Difference FormulaΔE*ab,ΔE*uv,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00
Other Colorimetric IndexSpectral reflectance,WI(ASTM E313,CIE/ISO, AATCC, Hunter, TaubeBergerStensby),
YI(ASTM D1925,ASTM E313),
Metamerism Index MI,
Staining Fastness, Color Fastness, Color Strength, Opacity,
8° Glossiness,555 tone classification, Carbon (My,dM), color density CMYK(A,T,E,M), Tint, Munsel chroma index (part of the function is realized by PC software)
Observer Angle2°/10°
IlluminantD65,A,C,D50,D55,D75, F1,F2(CWF),F3,F4,F5, F6,F7(DLF),F8 ,F9,F10(TPL5),F11(TL84),F12(TL83/U30),B,U35,NBF, ID50,ID65,LED-B1,LED-B2,LED-B3,LED-B4,LED-B5,LED-BH1,LED-RGB1,LED-V1,LED-V2,LED-C2,LED-C3,LED-C5, able to customized light source (total 41 kinds of light source, Partially realize through the PC software /APP software)
Displayed DataSpectrogram/Values, Samples Chromaticity Values, Color Difference Values/Graph, PASS/FAIL Result, Color simulation, Color Offset
Measuring TimeAbout 1.5s
RepeatabilityChromaticity value: MAV/SCI, within ΔE*ab 0.03 ( When a white calibration plate is measured 30 times at 5 second intervals after white calibration)
Spectral reflectance: MAV/SCI, Standard deviation within 0.1% (400 nm to 700 nm: within 0.2%)
Inter-instrument ErrorMAV/SCI, Within ΔE*ab 0.2 (Average for 12 BCRA Series II color tiles)
Display Resolution0.01
Measurement ModeSingle Measurement, Average Measurement(2-99times)
Locating MethodCamera Locating,stabilizer cross position
DimensionL*W*H=129X76X217mm
WeightApprox 600g
BatteryLi-ion battery, 8800 measurements within 8 hours
Illuminant Life Span10 years, more than 1.5 million times measurements
Displayed Data3.5-inch TFT color LCD, Capacitive Touch Screen
Data PortUSB, Bluetooth ® 5.0
Data StorageStandard 1000 Pcs, Sample 20000 Pcs, APP/PC mass storage
Software SupportAndriod,IOS,Windows,Harmony OS,Wechat applets
LanguageSimplified Chinese, English, traditional Chinese
Operating Environment0~40℃, 0~85%RH (no condensing), Altitude < 2000m
Storage Environment-20~50℃, 0~85%RH (no condensing)
Standard AccessoryPower Adapter, USB cable, User Guide, PC Software(Download from office website), White and Black Calibration Cavity, Protective Cover, Wrist strap, Aperture (8mm or 4mm optional)
Optional AccessoryMicro Printer, Powder Test Box
NotesThe specifications are subject to change without notice.



Our Valued Clients

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FAQs About ST50 Spectrophotometer

When detecting color differences, the first factors to consider when selecting a light source include its stability, directionality, lifespan, and the effectiveness of the ultimately obtained spectral curve. The illuminant of a colorimeter is a fixed bulb, such as a tungsten lamp，LED light or a long-life xenon lamp. However, for the same color sample, the results displayed by the instrument vary under different light sources. This is because different light sources cause different absorption and reflection of light on the sample, leading to differences in how both the human eye and the instrument perceive the color. 

In general, the D65 light source is used in the application of coil steel inks for construction. The D65 light source is equivalent to average daylight. Most coil steel inks for construction are used outdoors, and sunlight is regarded as the standard light source in outdoor environments. For household appliance coil steel inks, due to their usage characteristics, they are mostly used indoors. Therefore, the A standard light source is adopted for color measurement of samples based on indoor lighting conditions. The A light source is a carefully specified tungsten light source. Other light sources, such as fluorescent light sources, can be used in many types of applications. For example, some textile factories use fluorescent light sources. Therefore, a reasonable light source should be selected as the mutually recognized measurement method based on actual usage conditions and user requirements. Once agreed upon by both parties, color measurement must be conducted under the same conditions. This helps reduce unnecessary systematic errors and human errors, achieving the optimal consistency in color measurement. 

The 3nh high-precision spectrophotometric colorimeter adopts a combined LED light source with long lifespan and low power consumption, which includes UV (ultraviolet) and UV-excluded options. This design can meet the color difference detection needs of different users and supports the selection of multiple light source modes.

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.

Colorimetry is a method that applies color intensity to ascertain the chemical concentrations. It is founded on Beer-Lambert Law, whereby the absorbance at a given wavelength is proportional to the concentration. It is popular in environmental and biochemical testing.

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.

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.

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