3nh PS220 Spectrophotometer and Color Meter

3nh PS220 Spectrophotometer and Color Meter

In manufacturing and quality control, evaluating color with the naked eye is always subjective and easily leads to disputes between suppliers and customers. To standardize this workflow with scientific figures without spending too much capital on expensive laboratory systems, the 3nh PS220 spectrophotometer stands as the perfect choice. This is a portable handheld spectrophotometer featuring advanced diffraction grating technology, delivering outstanding precision at a highly economical price point.

Overview of the 3nh PS220 Spectrophotometer

The 3nh PS220 is an economical tier spectrophotometer researched and developed by 3nh – a global brand in color measurement technology. The device utilizes an international standard d/8 optical geometry (diffuse illumination, 8-degree viewing angle), perfectly satisfying the strict regulations of the International Commission on Illumination (CIE).

Unlike conventional colorimeters which often suffer from large error margins, the PS220 employs diffraction grating spectral band-splitting technology combined with a dual-path CMOS matrix sensor. Consequently, the instrument is capable of measuring and isolating reflectance data for individual light wavelengths from 400nm to 700nm stably and accurately.

Key Features of the 3nh PS220

💡 High-Precision Diffraction Grating Spectral Splitting Technology

By utilizing an industrial diffraction grating system, the 3nh PS220 has the capability to isolate the visible light spectrum in detail. This provides the color measurement device with exceptional stability, rendering it unaffected by metamerism and yielding results that match large laboratory color measurement instruments.

💡 Small Aperture Design – Optimized for Curved Surfaces and Small Parts

One of the major advantages of the PS220 series is its compact measuring aperture design. This allows the probe to easily make contact and execute precise measurements on curved surfaces (such as bottles, plastic tubes) or small mechanical components, electronic parts, buttons, and small labels that large aperture instruments fail to measure.

💡 Dual Integrated SCI and SCE Measuring Modes

• SCI (Specular Component Included): Specially used to measure the core intrinsic color of materials, completely eliminating interfering variables from surface gloss.
• SCE (Specular Component Excluded): Quantifies the actual color shade displayed before the consumer’s eyes, helping to evaluate product aesthetics most accurately.

💡 Diverse Color Spaces and Rapid Pass/Fail Evaluation Display

With just a single click operation taking less than 1.5 seconds, the sharp LCD screen of the PS220 provides:

• Comprehensive International Color Spaces: CIE Lab, XYZ, Yxy, LCh, RGB…
• Advanced Color Difference Formulas: Delta Eab, Delta E00, Delta E*cmc…
• Intelligent Warning Mode: Automatically calculates the deviation between the target standard and the test sample, instantly displaying a Pass or Fail result based on pre-set tolerances, which accelerates the sorting speed of defective products on production lines.

💡 Smart Mobile App and PC Software Connectivity

The 3nh PS220 features wireless Bluetooth connectivity technology and a convenient USB-C data transfer port:

• Connects rapidly with mobile applications to manage and store data in the cloud, sharing measurement results instantly with partners via Zalo/Email.
• Connects to specialized PC color management software to manage color card libraries (Pantone, RAL), track color deviation trend charts across production batches, and export professional quality assurance reports (QC Reports).

Technical Specifications:

Optical Geometry

D/8 (diffuse illumination, 8° viewing angle), SCI (Specular Component Included) / SCE (Specular Component Excluded) modes

Conforms to standards: CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO 7724-1, ASTM E1164, DIN 5033 Teil 7

Characteristics

Utilizes a dual-path CMOS spectral sensor

Used for color difference quality control in: electronic plastics, paint & inks, textiles & dyeing, printing, ceramics, etc.

Light Source: Combined full-spectrum LED light source

Integrating Sphere

Size: 40 mm

Sensor: Dual-path CMOS spectral sensor

Wavelength Range: 400 – 700 nm

Measuring Aperture

MAV: Φ8 mm / Φ10 mm (flat + sharp aperture)

SAV: Φ4 mm / Φ5 mm (flat + sharp aperture)

Specular Component: SCI/SCE (Note: Both components are supported via configuration)

Color Spaces: CIE LAB, XYZ, Yxy, LCh, CIE LUV, sRGB, HunterLab, βxy, DIN Lab99

Color Difference Formulas: ΔEab, ΔEuv, ΔE94, ΔEcmc (2:1), ΔEcmc (1:1), ΔE00, DIN ΔE99, ΔE (Hunter)

Other Colorimetric Indices:

Spectral Reflectance

Whiteness WI (ASTM E313, CIE/ISO, AATCC, Hunter)

Yellowness YI (ASTM D1925, ASTM E313)

Metamerism Index Mt: Color Fastness

Color Strength: Opacity

555 Shade Sorting

Munsell Color System (C/2) (implemented via mobile app)

CMYK

Observer Angle: 2° / 10°

Standard Illuminants

D65, A, C, D50, D55, D75

F1, F2 (CWF), F3, F4, F5, F6, F7 (DLF), F8, F9, F10 (TL85), F11 (TL84), F12 (TL83/U30)

U35, NBF, ID50, ID65

LED-1 to LED-10 (partially implemented via app)

Displayed Data

Spectrogram / Measured Values

Chromaticity Values of Samples

Color Difference Values / Graph

PASS/FAIL Result

Color Simulation

Color Offset

Measurement Time

Approx. 1.0s

Repeatability

Chromaticity Value: MAV/SCI, ΔE*ab ≤ 0.02 (after warm-up and calibration, average of 30 measurements taken at 5-second intervals)

Spectral Reflectance: MAV/SCI, standard deviation ≤ 0.08% (400–700 nm: ≤ 0.18%)

Inter-Instrument Agreement: MAV/SCI, ΔE*ab ≤ 0.3 (average of 12 BCRA Series II color tiles)

Display Accuracy: 0.01

Reflectance Range: 0 – 200%

Reflectance Resolution: 0.01%

Measuring Mode

Single Measurement

Average Measurement (2–99 times)

Locating Method

Stabilizing pad locating + camera viewfinder positioning

White Calibration

Contact-type calibration

Dimensions: 94 × 68 × 188 mm

Weight: Approx. 410 g

Battery

Rechargeable Lithium battery 3.7V, 3200 mAh

Operation up to ~8000 measurements within 8 hours

Light Source Lifespan: More than 1.2 million measurements over 10 years

Display Screen: 2.8-inch TFT true color screen

Capacitive touchscreen

Interface: USB, Bluetooth

Data Memory

Standards: 200 Standard items

Samples: 10,000 Measuring sessions (each record can include SCI/SCE data)

Mass storage support via App/PC

Software Support: Android, iOS, Windows, WeChat Mini Program, HarmonyOS

Languages: Simplified Chinese, English, Traditional Chinese

Operating Environment: 0 – 40°C, 0 – 85% RH (non-condensing)

Altitude < 2000 m

Storage Environment: -20 – 50°C, 0 – 85% RH (non-condensing)

Standard Accessories

Power adapter

USB cable

User manual

SQCX PC software (download from proprietary official website)

Black & white calibration boxes

Protective cap

Wrist strap

Measuring apertures

Optional accessories

Micro USB printer

Powder test box

Practical Applications of the 3nh PS220

Thanks to its compact design, flexible measurement capabilities, and exceptionally attractive investment cost, the 3nh PS220 spectrophotometer is widely implemented in:

• Plastics & Component Processing Industries: Checking the color uniformity of small molded plastic components, electronic hardware housings, buttons, and children’s toys.
• Printing & Paper Packaging Sector: Controlling color fidelity for printing inks over product labels, decal stickers, and paper box packaging, ensuring strict alignment with clients’ brand identity criteria.
• Textiles, Apparel & Auxiliary Trims: Rapidly auditing color fastness and shade consistency across dyed fabric bolts, processed yarns, clothing buttons, and zippers.
• Coatings & Surface Finishing: Quick quantification of color variations for powder coatings, wood-grain effect finishes on extruded aluminum profiles, and small mechanical components.