Elrepho 070 Whiteness and Color Measurement Spectrophotometer
| Origin | Switzerland |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Elrepho 070 |
| Pricing | Upon Request |
Overview
The Elrepho 070 is a high-precision, dual-beam spectrophotometer engineered specifically for the pulp, paper, and board industries to deliver traceable, standards-compliant measurements of whiteness, brightness, color (CIE L*a*b*, XYZ), opacity, fluorescence, reflectance, and residual ink. Its optical architecture implements d/0° geometry per ISO 2469, utilizing a SP 2000 monochromator with two 256-element diode arrays and 2 nm spectral sampling intervals across a 360–700 nm range. The instrument employs a pulsed xenon lamp filtered to simulate D65 illumination, with programmable UV control (395 nm and 420 nm cutoff filters) calibrated to ISO-defined C and D65 UV levels. Designed for long-term stability and metrological integrity, the Elrepho 070 integrates traceable photometric calibration hierarchy compliant with ISO 9001 and ISO/IEC 17025 requirements, supporting GLP/GMP-aligned audit trails in regulated environments.
Key Features
- Dual-beam optical design with real-time reference compensation for enhanced photometric stability and <0.01 ΔE CIELAB repeatability on white ceramic tiles
- ISO 2469-compliant d/0° measurement geometry with interchangeable apertures (standard 34 mm; optional 9 mm and 6.6 mm) and auto-focused measurement areas (30 mm, 5 mm, or 2.5 mm diameter)
- Programmable UV-adjusted illumination: D65, C, A, D50, and T11 illuminants with 10° or 2° standard observers
- Full-spectrum reflectance data acquisition from 360–700 nm (reporting range 400–700 nm), 10 nm spectral bandwidth
- Integrated traceable calibration system including certified working standards, delivery certificate, and ISO-level photometric & UV calibration documentation
- Rugged industrial enclosure (26 kg net weight, 0.4 × 0.5 × 0.6 m footprint) with pneumatic sample handling interface (0.2 m³/h NTP air consumption at >0.5 MPa)
Sample Compatibility & Compliance
The Elrepho 070 is validated for solid, flat, non-transparent substrates including paper, board, pulp sheets, coated papers, and printing stocks. It supports measurement of optical properties defined in major international standards: ISO 2469 (whiteness, opacity), ISO 2470 (brightness), ISO 2471 (opacity), ISO 5631 (color), ISO 9416 (light scattering/absorption), SCAN P3, P8, P66, P71, P72 (historical), TAPPI T 519 (brightness), T 525 (opacity), T 527 (color), T 560 (residual ink), CPPA E1/E2, DIN 53145–53147, and AFNOR NF Q 03-002. All optical configurations—including aperture size, UV filter selection, and illuminant/observer combination—are software-configurable and documented per measurement for full method traceability.
Software & Data Management
The dedicated L&W Colour Brightness software runs natively on Microsoft Windows (1.2 GHz CPU minimum, 17″ display recommended) and provides full workflow control: sample identification, parameter configuration, automated measurement sequencing, real-time pass/fail evaluation against user-defined specification limits, and comprehensive reporting. Data export is native to Excel-compatible CSV and XLSX formats, with direct integration into L&W Autoline production monitoring systems. Audit-ready features include electronic calibration logs, timestamped measurement records, operator ID tagging, and version-controlled method files—fully aligned with FDA 21 CFR Part 11 requirements for electronic records and signatures where enabled. Graphical outputs include spectral reflectance curves, CIELAB chromaticity plots (L*a*b*), trend charts for process control, and R457-based whiteness tracking.
Applications
- Quality assurance of paper brightness and whiteness in mill laboratories per ISO 2470 and ISO 2469
- Color consistency monitoring across production batches using CIELAB ΔE and spectral difference analysis
- Fluorescent whitening agent (FWA) quantification via UV-adjusted D65 measurements and 420 nm cutoff comparisons
- Opacity and light scattering coefficient (K/S) derivation from paired reflectance measurements (front/back illumination)
- Residual ink estimation (RIE) for deinked pulp qualification per TAPPI T 560
- Optical property certification for customer documentation, regulatory submissions, and third-party audits
FAQ
What standards does the Elrepho 070 support out-of-the-box?
It natively implements calculation engines and reporting templates for ISO 2469, ISO 2470, ISO 2471, TAPPI T 519, T 525, SCAN G5/P3/P8, and CPPA E1/E2, with configurable parameters for all major illuminants and observers.
Is the instrument suitable for GLP or GMP-regulated environments?
Yes—its software supports electronic signature workflows, calibration history archiving, measurement audit trails, and method version control, meeting foundational requirements for GLP compliance and 21 CFR Part 11 readiness.
Can the Elrepho 070 measure small or irregular samples?
With optional 9 mm and 6.6 mm apertures and auto-focused measurement zones (down to 2.5 mm diameter), it accommodates narrow strips and cut samples typical in lab-scale pulp testing.
How is calibration traceability maintained?
Each unit ships with a factory-issued calibration certificate referencing NIST-traceable standards; users perform photometric and UV calibration using supplied working standards, with all calibration events logged and retrievable within the software.
What data output formats are supported?
CSV, XLSX, PDF reports, spectral reflectance tables, and direct database ingestion via ODBC-compliant drivers for integration with LIMS or MES platforms.
