CHN SPEC EX SE Spectrodensitometer (45/0, dE*ab≤0.03)

CHN SPEC EX SE Spectrodensitometer (45/0, dE*ab≤0.03)

The CHN SPEC EX SE spectrodensitometer is a specialized handheld color and printing density measurement instrument (Handheld Spectrodensitometer) manufactured by CHNSpec. Optimized with a perfect balance between robust measurement performance and a reasonable investment cost, the EX SE version is an ideal solution for small and medium-sized printing and packaging workshops looking to standardize their color control processes according to international standards.

Outstanding Technological Features

Standard 45/0 Illumination Geometry: The device utilizes a standard 45-degree ring illumination and 0-degree viewing optical structure, strictly meeting the rigorous standards of the printing industry such as ISO 5-4 and ANSI PH2.17. This structure accurately replicates the natural viewing angle of the human eye on flat surfaces, helping eliminate discrepancies caused by the gloss effects and reflectance of the material surface.

High-Precision Repeatability (Error margin less than or equal to 0.03): Even as a cost-optimized line of instrument, the EX SE still possesses impressive hardware stability with a repeatability index of ΔE*ab less than or equal to 0.03 when measured on a standard white tile. This ensures that measurement results are always consistent and reliable across different work shifts in the workshop.

Multifunctional Printing Inspection Indices: The EX SE integrates a full suite of basic and advanced features of a professional densitometer. It helps printers easily monitor the color density of CMYK process inks, inspect tone value increase (Dot Gain), calculate dot area percentage, print contrast, and ink trapping.

Support for Standard Measurement Conditions (M0, M1, M2, M3): The device fully complies with the ISO 13655 standard through intelligent filters. It handles color measurement exceptionally well on printing papers containing Optical Brightening Agents (OBA) under M1 mode, or uses the M3 polarization filter to control color stability while the ink layer is still wet on the press.

Camera Positioning System for Measurement Area: The instrument is equipped with a real-time viewing camera that helps operators easily align and place the measurement aperture precisely onto small color patches on control strips (Color Bars) or micro-text and logo details without worrying about missing the target.

Technical Specifications:

Measurement/illumination aperture: Φ2mm/5mm，Φ1.5mm/3mm

Battery capacity: One single charge can continuously measure 8,000 times, 7.2V/3000mAh

Density range: 0.0 D–3.0 D

Density standards: Status A, E, I, T, M

Standards compliance: ISO 5-4:2009(E), ISO 13655:2017, CIE No. 15

Device display: 3.5-inch full-color screen

Supported languages: Simplified Chinese, English

Light source: Balanced full-band LED light source + UV

Measurement modes: M0, M1, M2, M3

Measurement geometry*: 45/0

Measurement time: Approx. 1.5 seconds

Measurement repeatability: Density value: ≤0.001D, chromaticity value: dE*ab≤0.03

Wavelength interval: 10nm

Wavelength range: 400-700nm

Light source lifespan: 1 million measurements over 10 years

Data storage: 100 master standards, 10,000 test samples; APP: Large-capacity storage

Spectroscopy method: Grating

Sensor: High-precision dual-row CMOS array sensor

Reflectance measurement range: 0-200%

Reflectance resolution: 0.01%

Software support: Android, iOS, Windows, WeChat Mini Program

Accuracy guarantee: Certified for first-class metrological compliance

Display accuracy: Density value: 0.001, Chromaticity value: 0.01

Observer angle: 2°，10°

Print quality indicators: CMYK color density (A, T, E, M), dot area, dot area gain, trapping ratio, print contrast, grayscale, color error

Inter-instrument agreement: dE*ab≤0.3

Measurement indices: /

Illuminants: A, B, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWF, U30, U35, DLF, NB F, TL83, TL84, ID50, ID65, LED-B1, LED-B2, LED-B3, LED-B4, LED-B5, LED-BH1, LED-RGB1, LE D-V1, LED-V2

45-degree ring light / 0-degree viewing angle

Measures the standard deviation of the white board 30 times at 5-second intervals

after white board calibration (except M3)

BCRA series II color chart, 12 modes, M0, 5mm diameter, average measurement value (except M3)

Practical Applications

The CHN SPEC EX SE is a powerful tool that helps digitize the color management process in manufacturing facilities:

• In Offset, Flexographic, and Screen Printing Workshops: Assisting printers in rapidly measuring ink layer thickness, checking ink uniformity across the entire print sheet, and monitoring dot gain during press runs to promptly adjust cylinder pressure or ink feed volume.
• Packaging and Paper Box Manufacturing: Ensuring that printed products match the standard color range requested by clients, strictly minimizing color variations between different batches to reduce material waste.
• Medium-Scale Ink Manufacturing and Blending Facilities: Helping technicians verify the density of finished inks, comparing the color tolerance of newly blended batches against master ink batches or standard Pantone guides.
• Incoming Quality Control (IQC): Assisting the inspection department in quickly accepting the whiteness and color quality of printing paper or plastic films from suppliers before introducing them into mass production.

The CHN SPEC EX SE is an exceptionally practical handheld spectrodensitometer solution. With its compact design, intuitive interface, and high precision within its segment, this device represents a smart investment that helps printing enterprises elevate product quality, optimize workflows, and minimize defect rates.