3NH KS-520 A flagship all-round model integrating 12 full apertures, fluorescence measurement, and small-area inspection. It delivers repeatability of ΔEab ≤ 0.025 and inter-instrument agreement of ΔEab ≤ 0.3. Equipped with a UV light source and nanoscale spectroscopic technology, it is supported by Class-I metrological certification for guaranteed accuracy. The 12 apertures include a dedicated 1×3 mm size for small areas, making it suitable for flat surfaces, curved surfaces, micro components, and a full range of sample types. It supports multi-system collaboration and cloud data management, meeting complex color measurement needs across industries such as plastics and electronics, textile dyeing, and precision manufacturing.
1.Comprehensive Form Coverage
Equipped with 12 full-spec apertures (including a 1×3 mm micro model), specifically: 3 mm flat tip, 3 mm pointed tip, 5 mm flat tip, 5 mm pointed tip, 6 mm flat tip, 6 mm pointed tip, 10 mm flat tip, 10 mm pointed tip, 11 mm flat tip, 11 mm pointed tip, 1×3 mm flat tip, and 1×3 mm pointed tip. Covers everything from conventional samples to precision micro parts, accommodating flat surfaces, curved surfaces, textured surfaces, and various sample geometries.
2.Wide Sample Compatibility
Equipped with a UV light source and full-spectrum LED, it accurately measures both conventional materials and fluorescent samples, delivering broader application versatility.
3.Multiple Color Spaces & Observation Light Sources
It supports a wide range of color spaces including CIE LAB, XYZ, Yxy, LCh, CIE LUV, s-RGB, HunterLab ,βxy,DIN Lab99，as well as numerous observation light sources such as D65,A,C,D50,D55,D75, F1,F2(CWF),F3,F4,F5, F6,F7(DLF),F8 ,F9,F10(TPL5),F11(TL84),F12(TL83/U30),U35,NBF,ID50 and ID65This enables specialized measurement requirements under various conditions.
1.High-Precision Performance with Accurate and Stable Data
Repeatability ΔEab ≤ 0.025 and inter-instrument agreement ΔEab ≤ 0.3 ensure consistent color across production batches. The dual-beam optical system monitors light source energy fluctuations to effectively reduce measurement interference, further enhancing stability and repeatability.
2.Industry-Standard D/8 Geometry with SCI/SCE Technology
Adopts D/8 illumination and viewing geometry with SCI/SCE technology, meeting color management requirements in industries such as coatings, textiles, and plastics, and complying with international standards including CIE, ISO, and ASTM.
3.Accredited Metrological Certification
Certified as Class-I metrological grade. Each instrument undergoes rigorous verification before shipment, with measurement data traceable to the national metrology institute, ensuring the authority of test results.
Core Optical Components
Silicon Photodiode Array：
Features a dual-row 18-group silicon photodiode array. The large-area design ensures no saturation under strong light while maintaining high sensitivity under weak light. The spectral response covers 400-700 nm at 10 nm intervals, with a reflectance measurement range of 0-200%, accurately capturing visible light information.
Nanoscale Integrated Spectroscopic Device
Delivers nanoscale spectroscopic resolution, precisely separating light at different wavelengths to ensure high data accuracy across all spectral bands.
Full-Band Balanced LED Light Source + UV Light Source
The illumination source covers the full 400-700 nm spectrum, providing sufficient spectral distribution across the visible range to avoid gaps common in standard white LED sources. The integrated UV light source enables easy measurement of fluorescent materials, further enhancing measurement accuracy.
1.Ergonomic Design and Easy Measurement
Ergonomically designed housing with a large touchscreen, optimized grip, and well-placed measurement button to accommodate different user preferences.
2.Precise Positioning and Calibration
Stabilizer Plate + Camera Framing Positioning
Provides a clear view of the measurement area. The dual positioning system uses a stabilizer plate along with real-time camera framing to accurately determine whether the target area is centered, ensuring precise positioning and reducing measurement errors.
Non-Contact Automatic White Calibration
Supports non-contact automatic white calibration. The professional-grade white calibration plate features reflectance R% ≥ 95%, excellent surface uniformity, and high stability, delivering repeatable and accurate data.
3.Multi-Platform Compatibility and Data Connectivity
Compatible with multiple operating systems including Android, iOS, Windows, and HarmonyOS. Users can operate the instrument via mobile app, WeChat mini-program, or computer, enabling cross-device data synchronization.
1.Cloud Storage and Collaborative Management
Supports synchronized storage of massive color data via the mobile app and WeChat mini-program (up to 500 standard samples), enabling a private cloud database. Eliminates the need to carry physical color cards, allowing seamless sharing with partners anytime, anywhere.
2.Professional Color Management Software
Comes with quality management software compatible with multiple platforms including Android, iOS, Windows, WeChat mini-program, and HarmonyOS, as well as a color matching cloud platform. The software enables test report generation, color difference comparison, and customizable color management workflows, meeting industrial-level quality control requirements
| Model | KS-520 Spectrophotometer |
| Illumination/Viewing Geometry | D/8 (Diffuse illumination, 8° viewing), SCI/SCE (Specular Component Included/Excluded). Compliant with CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724-1, ASTM E1164, DIN5033 Teil7. |
| Features | Utilizes a dual-path silicon photodiode array. Ideal for color difference quality control in industries such as plastics, electronics, paints and inks, textile dyeing and printing, printing, and ceramics. |
| Light Source | Combined Full-Spectrum LED Light Source, UV Light Source |
| Integrating Sphere Size | Φ40mm |
| Spectral Device | Nano-integrated spectral device |
| Sensor | Silicon photodiode array (dual-row, 18 groups) |
| Wavelength Range | 400-700nm |
| Wavelength Interval | 10nm |
| Measurement Aperture | 12 Apertures:3mm platform+3mm pointed tip+5mm platform+5mm pointed tip+6mm platform+6mm pointed tip+10mm platform+10mm pointed tip+11mm platform+11mm pointed tip+1*3mm platform+1*3 pointed tip |
| Specular Mode | Simultaneous measaurement SCI/SCE |
| Color Space | CIE LAB,XYZ,Yxy,LCh,CIE LUV,s-RGB,HunterLab,βxy,DIN Lab99 |
| Color Difference Formula | ΔE*ab,ΔE*uv,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00,DINΔE99,ΔE(Hunter) |
| Other Color Indices | Spectral Reflectance, WI (ASTM E313, CIE/ISO, AATCC, Hunter, Taube, Berger, Stensby), YI (ASTM D1925, ASTM 313), Metamerism Index MI, Staining Fastness, Shade Change Fastness, Strength, Opacity, 555 Shade Classification, Munsell (C/2), Blackness (My, dM), Color Density CMYK, Tint (Some functions realized via PC software) |
| Observer Angle | 2°/10° |
| Calibrated Illuminants | D65,A,B,C,D50,D55,D75 ,F1,F2(CWF),F3,F4,F5, F6,F7(DLF) ,F8,F9,F10(TPL5),F11(TL84) ,F12(TL83/U30),U35,NBF,ID50, ID65,LED-B1,LED-B2,LED-B3,LED-B4,LED-B5,LED-BH1,LED-RGB1,LED-V1,LED-V2(Partially realized via PC software) |
| Display Data | Spectral graph/data, sample color values, color difference values/graph, pass/fail results, color simulation, color bias |
| Measurement Time | Approx. 1 second |
| Repeatability |
Chromaticity Value: Within ΔE*ab 0.025 (Standard deviation) for MAV/SCI (after warm-up and calibration, average of 30 readings of white board at 5s intervals). Spectral Reflectance: Within 0.1% standard deviation for MAV/SCI (within 0.2% for 400-700nm). |
| Inter-Instrument Error | Within ΔE*ab 0.3 for MAV/SCI (average of 12 BCRA Series II color tiles). |
| Displayed Accuracy | 0.01 |
| Reflectance Range | 0-200% |
| Reflectance Resolution | 0.01% |
| Measurement Mode | Single measurement, average measurement (2-99 times). |
| Targeting | Stabilizer plate positioning + Camera framing. |
| White Calibration | Contact-type white calibration. |
| Dimensions | 120*75*207mm |
| Weight | 367g(without calibration base) |
| Battery | Lithium-ion battery, 3.7V, 3200mAh, supports 8000 measurements within 8 hours. |
| Light Source Life | Over 1.2 million measurements for 10 years. |
| Display | TFT true color 3.5-inch capacitive touch screen. |
| Interface | USB,Bluetooth |
| Data Storage | 500 standards, 15,000 samples (SCI/SCE data included in one record). Mass storage via APP/PC. |
| Software Support | Android, iOS, Windows, WeChat Mini-Program, HarmonyOS. |
| Languages | Simplified Chinese, English, Traditional Chinese |
| Operating Environment | Temperature: 0~40℃, Humidity: 0~85% RH (non-condensing), Altitude: below 2000m. |
| Storage Environment | Temperature: -20~50℃, Humidity: 0~85% RH (non-condensing). |
| Accuracy Guarantee | Ensured first-grade metrology certification |
| Standard Accessories | Power adapter, data cable, user manual, quality management software (download from official website), white calibration box, protective cover, wrist strap, measurement apertures. |
| Optional Accessories | Micro-printer, powder test box. |
| Note | Specifications are subject to change without prior notice. |
1. When I received NH310/NH300 colorimeter and perform measurement, why the measured data is abnormal?
After receiving NH310/NH300, you have to perform white and black calibration manually when first starting.
2. In which condition, manual white and black calibration and auto calibration are required for NH310?
a. It’s needed to perform manual calibration for NH310 when first starting.
b. In the subsequent starting, NH310 will perform auto calibration at startup. No need to perform manual calibration.
c. Suggestion: it’s best to perform manual calibration once a week or when NH310 measured data is not accurate.
3. In which condition, manual white and black calibration for NH300 is required?
a. It’s needed to perform manual calibration for NH300 when first starting.
b. In the subsequent starting, no need to perform manual calibration.
c. Suggestion: it’s best to perform manual calibration once a week or when NH300 measured data is not accurate.
4. How to replace NH310 measuring aperture?
There are three measuring apertures for NH310: Φ8mm (standard accessory), Φ4mm (standard accessory), extended Φ8mm (optional accessory)
a. Turning on
b. Removing measuring aperture, install the needed measuring aperture.
c. Select “Settings-Aperture Setting” in main menu to select corresponding measuring aperture.
d. After selecting aperture, the instrument will display “White and Black Calibration” interface. White and black calibration must be performed.
e. Replace completed.
5. CQCS3 (Color Quality Control System) Installation
a. Before installation, please Copy CQCS3 folder to your computer and don’t remove any files in CQCS3 folder.
b. Double-click the setup.exe to install CQCS3 software.
c. Then double-click Install.bat under the CQCS3\USB_Driver file to install the driver.
d. Detailed installation information please read the "Installing Software" under CQCS3 User manual.doc.
6. How to check communication port?
a. Connect colorimeter to the PC with USB cable.
b. Turn on the colorimeter to enter main menu. Select “Comm” and press “Enter” key to start communication.
c. Right click on “My Computer” on the desktop. Click “Manage” -> “Device Manager” -> “Ports”, you can see similar display as “SCI USB2Serial (COM6)”.
d. Click “Settings->Communication Parameters” in CQCS3 software interface. Select the corresponding port in “Serial Port”.
7. After completing CQCS3 installation, how to solve the problem if it display “! USB Device” or “! SCI USB2Serial (COM6)” when checking the communication port?
a. Right click “! USB Device” or “! SCI USB2Serial (COM6)”, “Update Driver” -> “Install from a list or specific location (Advanced)” -> “Next” ->“Include this location in the search” -> “Browse”, specify USB driver file path “CQCS3\USB_Driver”, click “Next”. Then it will install successfully.
b.Detailed installation information please refers to “2.2 Installing USB Driver” in Color Quality Management System User Manual.doc.
8. Notes for First Using CQCS3 Software
a. Users must specify Standard File Name, Sample File Name and Sample Database File Name when first use.
b.Standard File is use to store standard measurement data. Sample File is used to store sample measurement data. Sample Database File is used to store the measured data exported from sample records.
9. How to solve the problem when “Connection Timeout” occurred?
a. When the colorimeter is disconnected to the PC, “Connection Timeout” will occur. At the moment, you have to check whether the USB cable is well connected the colorimeter and the PC. Then you can re-plug the USB to try out.
b. After ensuring the colorimeter is connected to the PC with USB cable, turn on the colorimeter and enter the main menu. Select “Comm” and press “Enter” key to start communication.
c. Turn off CQCS3 software, and reopen it.
10. How to solve the problem when the interface display "USB Disconnect"
a. Check whether the USB cable is connected. If not, please connect it. Check whether the connection is effective. You can re-plug the USB cable to test.
b. If the USB cable is connected well but the interface still displays "USB Disconnect", please re-start the colorimeter and enter "Menu" -"Comm"to start the communication.
c. Change the USB cable or change the USB port in you PC.
11. How to solve the problem when the colorimeter cannot be turned on in the condition of battery-powered?
a. If this phenomenon occurred, it means the battery power is not enough. You need to charge the battery.
b. When charge the battery, please insert the battery to the instrument, and plug in the adapter to charge the battery. After 5 minutes, the instrument can be turned on.
c. If the instrument still cannot be turned on after charging 5 minutes, you can pull out the adapter and re-plug in to check it. Or repeat this operation.
d. If the instrument still cannot be turned on after charging 5 minutes, you can turn off the colorimeter and turn on it again to check it. Or repeat this operation.
e. If you have tried all the methods above but the colorimeter still cannot be turned on, please change the battery.
