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

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

The CHN SPEC EX Pro spectrodensitometer is a professional-grade handheld color and printing density measurement instrument (Handheld Spectrodensitometer) manufactured by CHNSpec. Designed with exceptional hardware sensitivity and featuring ultra-high repeatability, the EX Pro is a powerful tool that helps printing, packaging, and ink formulation engineers strictly control color quality and minimize waste during the production process.

Outstanding Technological Features

• Standard 45/0 Illumination Geometry for the Printing Industry: The device utilizes a standard 45-degree ring illumination and 0-degree viewing optical structure, strictly complying with ISO 5-4 and ANSI PH2.17 standards. This geometry perfectly replicates how the human eye perceives color on flat surfaces, effectively eliminating interference caused by the gloss of the ink layer.
• Ultra-Precise Repeatability (Error margin less than or equal to 0.03): A valuable upgrade of the EX Pro version lies in its extreme stability, with a repeatability index of ΔE*ab less than or equal to 0.03 when measured on a standard white tile. This specification guarantees that the device always delivers absolutely consistent results, even through repeated consecutive measurements.
• Comprehensive Color Densitometry System: The EX Pro provides the full range of analytical functions of a dedicated densitometer for printers, including: measuring the color density of CMYK process inks, tone value increase (Dot Gain), dot area percentage verification, print contrast, and ink trapping.
• Full Support for Measurement Conditions (M0, M1, M2, M3): The device fully complies with the ISO 13655 standard using smart filters. In particular, the M1 mode enables precise color measurement on modern printing papers containing Optical Brightening Agents (OBA), while the M3 mode (polarization filter) allows stable color control even when the ink layer is still wet right out of the printing press.
• High-Definition Camera Positioning: An integrated real-time viewing camera allows operators to easily align the measurement aperture with small color patches on control strips (Color Bars) or micro-text and logo details without worrying about clipping the edges.

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: CIE-Lab, CIE-LCh, HunterLab CIE-Luv, XYZ, Yxy, RGB, color deviation (ΔE*ab, ΔE*cmc ΔE*94, ΔE*00), blackness (My, dM), color fastness, tint (ASTM E313-00), CMYK color density (A, T, E, M), Milm metamerism index, Munsell, opacity, strength (dye strength, tinting strength)

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 Pro is an ideal color standardization solution for multiple stages in the color industry supply chain:

• On the Printing Press Floor (Offset, Gravure, Flexo): Assisting printers in rapidly checking ink layer thickness on paper, adjusting ink distribution evenly across print zones, and monitoring dot gain throughout the press run to ensure print jobs meet quality criteria.
• Pharmaceutical Packaging and High-End Label Manufacturing: Helping control color tolerances of boxes and packaging at the lowest possible level, protecting brand identity consistency for large corporations.
• Ink Formulation Laboratories: Supporting ink room technicians in analyzing technical parameters of base inks, blending colors accurately according to international standard guides (such as Pantone), and storing digitized data for each ink batch.
• Incoming and Outgoing Quality Control (IQC/OQC): Enabling the QC department to audit the quality of printing paper, plastic films, or wrapping materials from suppliers before they are introduced into the production line.

The CHN SPEC EX Pro is a perfect combination of a color spectrophotometer and a professional printing densitometer. With its compact handheld design, exceptionally precise repeatability, and robust performance on materials containing OBA brightening agents, this device is a valuable upgrade that helps printing businesses validate quality and professionalize their color control workflows.