Lovibond EC2000 & EC3000 Series Electronic Colorimeters

Overview

The Lovibond EC2000 and EC3000 Series Electronic Colorimeters are precision optical instruments engineered for quantitative color assessment in liquid samples across industrial quality control, petrochemical refining, edible oil processing, pharmaceutical excipient evaluation, and wastewater treatment laboratories. These instruments operate on the principle of trichromatic photometry—measuring sample absorbance at three standardized wavelength bands approximating human visual response—to deliver objective, instrument-based color values traceable to internationally recognized standards. Unlike subjective visual comparison methods, the EC series replaces perceptual judgment with calibrated digital measurement while retaining the intuitive dual- or triple-field viewing paradigm familiar to trained analysts. Each model is purpose-configured for a specific color scale: EC2000 supports both Platinum-Cobalt (Pt-Co, ASTM D1209) and Gardner (ASTM D1544/D6166) scales; EC3000 covers ASTM D1500/D6045 (petroleum products) and Saybolt (ASTM D156/D6045) scales. All units comply with ISO/IEC 17025-relevant measurement uncertainty frameworks and support GLP-compliant data integrity through timestamped result logging and audit-ready storage.

Key Features

• White LED illumination with >25,000-hour operational lifetime ensures long-term photometric stability and eliminates lamp replacement cycles.
• Trichromatic solid-state detector provides high signal-to-noise ratio and minimizes spectral drift over time and temperature variations.
• 3.5-inch full-color TFT display (320×240, 24-bit) renders real-time color representation alongside numeric values, enabling immediate visual verification of match quality.
• Dual operational interface: resistive touchscreen for rapid menu navigation and physical keypad for gloved-hand or high-vibration environments.
• Intuitive color-coded pass/fail feedback: green (within tolerance), amber (at threshold), red (out-of-spec)—reducing interpretation errors in routine QC workflows.
• Ergonomic low-profile housing (106 × 210 × 57 mm) with flame-retardant ABS construction meets IEC 61010-1 safety requirements for laboratory instrumentation.
• USB 2.0 Mini-B interface enables direct export of CSV-formatted datasets to LIMS or Excel without proprietary software dependency.

Sample Compatibility & Compliance

The EC2000 and EC3000 accommodate standard W100-series cuvettes—available in both polycarbonate (for routine screening) and borosilicate glass (for high-temperature or solvent-resistant applications). Cuvette pathlengths are optimized per scale: 50 mm for Pt-Co and Saybolt, 33 mm for ASTM D1500, and 10 mm for Gardner. Sample temperature tolerance up to 80 °C permits direct measurement of warm process streams without cooling delays. All color scales are validated against NIST-traceable reference materials and certified EC-series interference filters. Instrument compliance includes adherence to ASTM E308 (computing CIE tristimulus values from filter photometer data), ISO 4630 (Gardner color), and USP (color of pharmaceutical liquids). Data storage and user access logs meet FDA 21 CFR Part 11 requirements when used with validated configuration and electronic signature protocols.

Software & Data Management

No external software installation is required: all calibration, measurement, and reporting functions reside onboard. The embedded firmware stores ≥20,000 test records with full metadata—including date/time stamp, operator ID (user-selectable), method ID, cuvette type, pathlength, and raw sensor output. USB export generates timestamped CSV files containing columnar fields compatible with statistical process control (SPC) platforms. Audit trail functionality records all critical events: calibration updates, method changes, and result deletions—with immutable timestamps. Optional password-protected user levels (Operator, Supervisor, Administrator) enforce role-based access control aligned with ISO 17025 clause 6.2.3 and GMP Annex 11 expectations.

Applications

• Petrochemical QA/QC: ASTM D1500 color grading of lubricants, diesel, and naphtha; Saybolt color verification of aviation turbine fuels per D1655 Annex A1.
• Edible Oil Refining: Gardner scale monitoring during bleaching and deodorization; Pt-Co assessment of refined vegetable oils per AOCS Cd 13b-92.
• Pharmaceutical Manufacturing: USP color testing of syrups, suspensions, and active pharmaceutical ingredients (APIs).
• Water & Wastewater Labs: Pt-Co (APHA) color quantification per Standard Methods 2120B for potable water and effluent discharge compliance.
• Chemical Synthesis: In-process color tracking of intermediates and final products where hue shift indicates reaction completion or degradation.

FAQ

What color standards are supported by the EC2000?
The EC2000 supports Platinum-Cobalt (ASTM D1209) and Gardner (ASTM D1544/D6166) scales with dedicated cuvette configurations and calibration routines.
Can the EC3000 measure both ASTM D1500 and Saybolt colors on the same instrument?
Yes—the EC3000 is factory-configured for dual-scale operation; users select the active scale via the main menu without hardware modification.
Is battery operation suitable for field use?
Yes—four AA alkaline cells provide >1,200 measurements per charge under typical usage; USB bus power enables continuous operation during lab-based throughput peaks.
How is traceability maintained for calibration?
Each unit ships with NIST-traceable reference solutions and certified EC-series interference filters; calibration certificates include uncertainty budgets compliant with ISO/IEC 17025 Clause 6.4.
Does the instrument support GLP-compliant electronic signatures?
When deployed within a validated IT environment and configured with password-protected user roles, the EC2000/EC3000 meets core ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) and supports Part 11 readiness through configurable audit trails and immutable data export.