X-Rite Ci7800 Benchtop Spectrophotometer

Overview

The X-Rite Ci7800 Benchtop Spectrophotometer is a high-precision, multi-aperture spectrophotometer engineered for rigorous color measurement across opaque, translucent, transparent, and optically brightened materials. Utilizing pulsed xenon illumination with D65 spectral calibration and a d/8° optical geometry (diffuse illumination, 8° viewing angle), the Ci7800 delivers metrologically traceable reflectance and transmittance data compliant with international standards including ISO 7724, ISO 13655, CIE 11664, and ASTM E308. Its 360–780 nm spectral range—sampled at selectable intervals of 5, 10, or 20 nm via a holographic grating and 2D CCD array—ensures high-fidelity spectral capture suitable for both routine QC and advanced R&D applications. The instrument’s short-term repeatability of ≤0.01 ΔE*ab RMS on white ceramic tile and inter-instrument agreement of ≤0.08 ΔE*ab avg. under controlled conditions supports cross-site measurement harmonization in global supply chains.

Key Features

• Five selectable reflectance spot sizes (25 mm, 17 mm, 10 mm, 6 mm, 3.5 mm) and four transmittance apertures enable precise adaptation to diverse sample geometries—including textured surfaces, irregular solids, liquids, gels, and powders.
• Integrated high-resolution digital camera with real-time preview and active laser-assisted target positioning ensures accurate spatial registration of measurement zones—critical for detecting surface defects, scratches, or contamination alongside spectral data.
• Embedded NetProfiler support enables automated instrument performance verification and remote diagnostics without requiring external PCs; full audit trails are retained for GLP/GMP environments.
• Three programmable UV filter positions allow precise control of ultraviolet energy during measurement—essential for evaluating fluorescent whitening agents (FWAs) in textiles, paper, plastics, coatings, and personal care products.
• Onboard environmental monitoring includes calibrated temperature and humidity sensors located adjacent to the sample compartment, providing contextual metadata for every measurement and triggering alerts when ambient conditions exceed validated operating limits (5–40 °C, 5–85% RH non-condensing).
• Robust mechanical architecture with vibration-damped optical bench and lamp lifetime exceeding 1,000,000 measurements ensures long-term stability and minimal drift between calibrations.

Sample Compatibility & Compliance

The Ci7800 accommodates a broad spectrum of physical forms through configurable port orientations (upward-, downward-, and forward-facing) and modular accessories—including liquid cells, powder cups, gel holders, and specialized fixtures for curved or fragile substrates. Its dual-mode capability (reflectance/transmittance) and UV-flexible optics meet material-specific requirements defined in ISO 11475 (paper), ASTM D2244 (paints), AATCC TM173 (textiles), and USP (pharmaceutical packaging). All firmware and calibration routines comply with FDA 21 CFR Part 11 when deployed with validated X-Rite software platforms such as Color iQC, Color iMatch, and DataColor Match Pigment. Full traceability is maintained via embedded calibration records, timestamped sensor logs, and immutable measurement archives.

Software & Data Management

The Ci7800 communicates natively via USB 2.0 and integrates seamlessly with X-Rite’s XDS4 Software Development Kit, enabling OEM-level customization and enterprise system integration (e.g., LIMS, MES, SAP QM). Measurement data—including full spectral curves, CIELAB values, pass/fail flags, annotated images, and environmental metadata—is exported in standardized formats (XML, CSV, CxF/X) supporting automated reporting and statistical process control (SPC). Audit-ready features include electronic signatures, role-based access control, and revision-controlled method templates—all aligned with GLP and GMP documentation requirements. Optional cloud-enabled services provide secure offsite backup, remote calibration validation, and predictive maintenance alerts based on lamp usage and thermal history.

Applications

• Quality assurance of pigmented polymers, automotive coatings, and architectural paints where batch-to-batch color consistency must be verified against master standards under multiple illuminants.
• Regulatory compliance testing for pharmaceutical blister packaging and medical device labels per USP and ISO 15378.
• Textile dye lot approval with FWA compensation across cotton, polyester, and blended fabrics under D65 and CWF illuminants.
• R&D of optical brighteners in paper manufacturing, requiring spectral decomposition and UV-excited reflectance quantification.
• Food packaging color stability assessment under accelerated aging conditions, correlating spectral shift with shelf-life indicators.
• Electronics display component verification—measuring chromaticity of OLED backplates, lens filters, and anti-glare coatings with sub-ΔE*ab 0.1 resolution.

FAQ

Does the Ci7800 support measurement of fluorescent samples?
Yes—the instrument includes three user-selectable UV filter positions and built-in UV calibration standards to quantify fluorescence intensity and correct for optical brightener effects in accordance with ISO 13655 and CIE 15:2018.
Is the Ci7800 compliant with FDA 21 CFR Part 11?
When operated with validated X-Rite software (e.g., Color iQC v8.0+), the Ci7800 supports electronic signatures, audit trails, and data integrity controls required for regulated industries.
Can measurement data include photographic evidence of the sample surface?
Yes—every measurement captures a synchronized high-resolution image with overlay markers indicating the exact measured area, stored alongside spectral and colorimetric data.
How often does the Ci7800 require recalibration?
The instrument monitors lamp degradation, thermal drift, and sensor stability autonomously; calibration reminders appear only when performance thresholds fall outside ISO-defined tolerances—typically every 6–12 months under normal use.
What spectral resolution options are available?
Users may select 5 nm, 10 nm (default), or 20 nm spectral intervals, balancing resolution needs against signal-to-noise ratio and measurement speed.
Is remote diagnostics supported?
Embedded NetProfiler enables secure remote health checks, firmware updates, and spectral validation without interrupting production workflows.