X-Rite Ci™4200 / Ci™4200UV Benchtop Spectrophotometer
| Brand | X-Rite |
|---|---|
| Origin | USA |
| Model | Ci™4200 / Ci™4200UV |
| Type | Automatic |
| Optical Geometry | d/8° with DRS (Diffuse/8° Reflectance Sphere) |
| Illumination/Measurement Aperture | 14 mm illuminating / 8 mm measuring |
| Light Source | Tungsten-halogen lamp (Ci™4200), UV-LEDs (Ci™4200UV) |
| Detector | Blue-enhanced silicon photodiode |
| Spectral Range | 400–700 nm |
| Spectral Interval | 10 nm (acquisition & output) |
| Reflectance Range | 0–200% |
| Inter-instrument Agreement | Avg. ΔE*ab ≤ 0.20 (CIE L*a*b*, BCRA Series II, SCI mode), Max. ΔE*ab ≤ 0.40 per tile (SCI) |
| Short-term Repeatability | ≤ 0.05 ΔE*ab (white tile) |
| Measurement Time | ~2 seconds (simultaneous SCI/SCE) |
| Gloss Output | 60° gloss units |
| Compliance | ASTM E308, ISO 7724, ISO 11664, CIE No. 15, USP <1061>, FDA 21 CFR Part 11 (via software audit trail) |
Overview
The X-Rite Ci™4200 and Ci™4200UV are precision benchtop spectrophotometers engineered for high-accuracy color measurement in quality control laboratories, R&D environments, and production settings where spectral consistency, inter-instrument agreement, and regulatory traceability are critical. Operating on a d/8° optical geometry with a dual-beam Diffuse Reflectance Sphere (DRS), these instruments deliver simultaneous Specular Component Included (SCI) and Specular Component Excluded (SCE) measurements—enabling robust evaluation of both colorant behavior and surface appearance in a single acquisition cycle. The Ci™4200UV variant integrates calibrated UV-LEDs to excite fluorescent whitening agents (FWAs), ensuring metrologically sound quantification of optically brightened materials such as paper, textiles, plastics, and coatings—where UV content directly impacts perceived whiteness and hue stability. With a spectral range of 400–700 nm sampled at 10 nm intervals and a blue-enhanced silicon photodiode detector, the system maintains linearity and signal-to-noise performance across the visible spectrum under standardized CIE illuminants and observers.
Key Features
- Simultaneous SCI/SCE measurement in approximately 2 seconds—reducing operator dependency and increasing throughput in routine QC workflows.
- Dual-aperture optical design: 14 mm illumination / 8 mm measurement spot—optimized for homogeneity assessment and minimizing edge effects on textured or patterned substrates.
- UV calibration capability (Ci™4200UV): Traceable UV irradiance output enables compliance with ISO 105-J03 and ASTM D6530 for FWA-containing samples.
- 60° gloss measurement integrated into spectral acquisition—eliminating need for separate glossmeter validation and enabling correlated color-gloss analysis.
- Transform support: Enables spectral data translation between X-Rite platforms (e.g., Ci7600, MA98, RM200QC) using industry-standard CIE-based algorithms—ensuring cross-device data continuity without proprietary lock-in.
- LED status panel with remote trigger functionality via dedicated measurement key—facilitating integration into automated sample handling systems or glove-box environments.
- Adjustable sample clamp with preview alignment aid—supporting repeatable positioning for flat, curved, or irregular specimens in both horizontal and vertical orientations.
Sample Compatibility & Compliance
The Ci™4200 series accommodates solid, opaque, and semi-transparent samples up to 0.5 inch (12.7 mm) thick, including coated panels, injection-molded parts, printed films, woven fabrics, and ceramic tiles. Its 8 mm measurement aperture ensures compatibility with standard ASTM D2244 and ISO 11664-4 test areas while maintaining sufficient spatial averaging for heterogeneous surfaces. Instrument firmware and calibration protocols align with GLP/GMP requirements: all calibrations are traceable to NIST-traceable standards (black trap, white and green ceramic tiles, UV reference tile for Ci™4200UV), and built-in diagnostics log lamp aging, sphere contamination, and spectral drift. Data export formats comply with ASTM E2847 and ISO 12234-2 (CIEXYZ, CIELAB, spectral reflectance curves), supporting audit readiness under FDA 21 CFR Part 11 when used with validated NetProfiler and Color iQC software configurations.
Software & Data Management
The Ci™4200 is fully supported by X-Rite’s enterprise-grade software suite—including NetProfiler for multi-instrument performance monitoring, Color iQC for statistical process control (SPC), and IQ OQ PQ validation packages. NetProfiler enables real-time tracking of inter-instrument agreement (IIA), repeatability, and drift trends across fleets of Ci-series devices—generating automated alerts when metrics exceed user-defined thresholds (e.g., ΔE*ab > 0.25 over 30 days). All software modules enforce role-based access control, electronic signatures, and full audit trails compliant with 21 CFR Part 11 Annex 11 and ISO/IEC 17025. Spectral data is stored in vendor-neutral .qtx format, allowing third-party integration with LIMS, MES, and ERP systems via documented REST APIs. Firmware updates are digitally signed and version-controlled to maintain configuration integrity during requalification.
Applications
- Paint & Coatings: Quantifying batch-to-batch color consistency, metallic flake orientation effects, and weathering-induced hue shifts under controlled illumination.
- Plastics & Polymers: Validating masterbatch dispersion, detecting thermal degradation via yellowness index (YI), and correlating spectral shifts with UV exposure testing.
- Textiles & Apparel: Measuring dye lot uniformity, assessing fluorescence compensation in bleached cotton, and verifying colorfastness after washing or lightbox aging.
- Printing & Packaging: Ensuring CMYK spot color fidelity across press runs, validating substrate metamerism, and certifying label compliance with ISO 12647-2.
- Pharmaceuticals & Medical Devices: Verifying tablet coating uniformity per USP , monitoring polymer-based device color stability during accelerated aging studies.
FAQ
What is the difference between Ci™4200 and Ci™4200UV?
The Ci™4200UV includes a calibrated UV-LED source and dedicated UV calibration standard to quantify fluorescence from optical brighteners; the base Ci™4200 lacks UV excitation and is intended for non-fluorescent materials.
Does the instrument support ASTM D2244 pass/fail tolerancing?
Yes—Color iQC software enables configurable pass/fail limits based on ΔE*ab, ΔL*a*b*, or custom metrics aligned with ASTM D2244, ISO 105-J03, or internal specifications.
Can spectral data be exported for third-party analysis?
Yes—reflectance spectra (400–700 nm @ 10 nm) export in CSV, XML, and .qtx formats; all include metadata (illumination, observer, aperture, date/time, operator ID).
Is the Ci™4200 suitable for GMP-regulated environments?
When deployed with validated software (Color iQC v7.5+), documented IQ/OQ/PQ protocols, and audit-trail-enabled workflows, it meets core requirements of FDA 21 CFR Part 11 and EU Annex 11.
How often does the instrument require recalibration?
Daily verification with supplied white tile is recommended; full recalibration using black trap and ceramic standards is required after lamp replacement (~500,000 measurements) or if NetProfiler detects IIA drift exceeding 0.25 ΔE*ab.
