X-Rite Ci7600 Benchtop Spectrophotometer

Overview

The X-Rite Ci7600 Benchtop Spectrophotometer is a high-precision, multi-geometry color measurement instrument engineered for laboratory and production environments requiring rigorous spectral fidelity, long-term stability, and metrological traceability. Utilizing a pulsed xenon light source and a 2D CCD array spectrometer with a holographic grating, the Ci7600 captures full reflectance and transmittance spectra across the visible range (360–750 nm) at 10 nm resolution (20 nm optional). Its d/8° optical geometry supports both specular component included (SCI/SPIN) and excluded (SCE/SPEX) modes—enabling simultaneous capture of colorimetric data and appearance attributes such as gloss, texture influence, and metamerism. Designed in compliance with ISO/CIE standards for colorimetry—including ISO 7724-1, ISO 13655, and CIE Publication 15—the Ci7600 delivers repeatable results with ≤0.03 ΔE*ab RMS short-term repeatability on standardized white tiles and ≤0.15 ΔE*ab average inter-instrument agreement across units within the same production batch.

Key Features

• Five selectable reflectance apertures (25 mm, 17 mm*, 10 mm, 6 mm, 3.5 mm*) and three standard plus two optional transmittance apertures accommodate diverse sample geometries—from macro-scale panels to micro-patterned surfaces and thin films.
• Laser-assisted targeting system ensures precise alignment on small or irregular samples; integrated digital camera provides real-time preview and active focus verification prior to measurement.
• UV-adjustable illumination with up to three embedded UV filter positions enables controlled assessment of fluorescent whitening agents (FWAs) in textiles, paper, plastics, and coatings—critical for conformance with ISO 11475 and ASTM D5398.
• Self-diagnostic NetProfiler functionality continuously monitors internal temperature, humidity, lamp output, and optical path integrity; generates automated performance reports compliant with GLP/GMP documentation requirements.
• No warm-up time required; stable spectral output achieved instantly after power-on, minimizing downtime during high-throughput QC workflows.
• Robust mechanical architecture with precision-machined optical housing ensures dimensional stability under ambient fluctuations—validated per IEC 60068-2 environmental test protocols.

Sample Compatibility & Compliance

The Ci7600 accommodates opaque, translucent, transparent, and optically brightened materials without reconfiguration. Its forward-, upward-, and downward-facing port options support vertical film holders, liquid cuvettes, powder cells, gel trays, and textured substrates via X-Rite-certified accessories (e.g., TX-10 transmission module, DR-10 diffuse reflectance adapter). All measurements adhere to ISO 13655:2017 (spectral measurement of graphic technology), ASTM E308 (conversion of spectral data to CIE tristimulus values), and USP for pharmaceutical packaging color verification. Built-in humidity and temperature sensors located above the sample drawer log environmental conditions alongside each measurement—supporting FDA 21 CFR Part 11 audit trails when paired with validated Color iQC software.

Software & Data Management

The Ci7600 operates natively with X-Rite’s Color iQC quality control software, enabling tolerance-based pass/fail evaluation, SPC charting, and deviation root-cause tagging. Its XDS4 Software Development Kit allows integration into MES, LIMS, and ERP systems via RESTful APIs and XML/JSON data exchange. All spectral data are stored in industry-standard .cxf or .qtx formats, preserving raw 10 nm intervals for retrospective analysis. Embedded NetProfiler status indicators provide visual confirmation of calibration validity, lamp health, and sensor drift thresholds—automatically flagging deviations exceeding ISO 13655-recommended limits. Audit logs record operator ID, timestamp, environmental metadata, and instrument configuration history—fully compliant with GLP and GMP documentation frameworks.

Applications

This spectrophotometer serves critical roles across regulated and industrial sectors: in paint & coatings R&D for batch-to-batch hue consistency; in food packaging for substrate and ink color validation against brand standards; in textile manufacturing for dye lot matching under multiple illuminants (D65, F2, A); in pharmaceuticals for capsule shell and blister foil color release testing; and in plastics compounding for masterbatch dispersion uniformity assessment. Its dual-mode reflectance/transmittance capability makes it suitable for automotive interior trim validation (where both surface color and backlight diffusion must be quantified), as well as for optical filter characterization in display manufacturing.

FAQ

Does the Ci7600 require daily calibration?
No—its solid-state xenon source and thermally stabilized optics enable stable operation between scheduled calibrations. NetProfiler recommends recalibration only when drift exceeds ISO-defined thresholds, typically every 8–12 weeks under normal use.
Can the Ci7600 measure metallic or pearlescent coatings?
Yes, when used with the optional Multi-Angle Measurement Module (MAM), though base-unit operation supports only 0°/d geometry; angular dependency requires add-on hardware.
Is spectral data export compatible with third-party color formulation software?
Yes—raw .cxf files contain full 10 nm spectral reflectance/transmittance data and are natively readable by Datacolor MatchText, GretagMacbeth SpectraMagic, and BASF ChromaPlus.
What regulatory standards does the Ci7600 support out-of-the-box?
ISO 7724-1, ISO 13655:2017, CIE 15:2018, ASTM E308, ASTM D2244, and USP ; additional pharmacopeial or automotive OEM protocols may be enabled via firmware update.
How is measurement uncertainty quantified for the Ci7600?
X-Rite provides an NIST-traceable uncertainty budget per unit, including contributions from spectral bandwidth, photometric linearity, geometry tolerance, and temperature coefficient—available upon request for ISO/IEC 17025 accreditation submissions.