Lovibond AF330 EBC Colorimeter for Beer Analysis
| Brand | Lovibond (Tintometer Ltd.) |
|---|---|
| Origin | United Kingdom |
| Model | AF330 |
| Measurement Range | EBC 2–27 |
| Wavelength | 430 nm (fixed, optimized for EBC scale) |
| Optical Path Length | Standard 10 mm cuvette (compatible with 5 mm, 20 mm, and 50 mm pathlength cells for sample dilution or concentration adjustment) |
| Compliance | Designed in accordance with EBC Method 2.1 & ASBC Beer-1 |
| Display | LED digital readout with EBC unit labeling |
| Power Supply | AC adapter or optional rechargeable battery pack |
| Dimensions | 185 × 120 × 85 mm |
| Weight | 0.9 kg |
Overview
The Lovibond AF330 EBC Colorimeter is a dedicated photometric instrument engineered for precise, repeatable color measurement of beer, wort, malt extracts, caramel solutions, and other brewing-relevant liquids according to the European Brewery Convention (EBC) standard. It operates on the principle of single-wavelength absorbance photometry at 430 nm—a wavelength empirically validated to correlate strongly with the visual perception of yellow-to-amber hues in clarified beer samples. Unlike general-purpose colorimeters, the AF330 is calibrated exclusively against the official EBC reference scale (EBC 2–27), eliminating interpolation errors and ensuring traceability to internationally recognized brewing metrology. Its optical architecture features a stable tungsten-halogen light source, precision interference filter, and silicon photodiode detector, all housed in a thermally stabilized optical bench to minimize drift during extended operation. The instrument delivers direct EBC unit readouts without requiring manual calculation or software conversion—critical for routine QC workflows in brewhouses, contract labs, and raw material suppliers.
Key Features
- Dedicated EBC-scale calibration certified against EBC Reference Solutions (traceable to NPL-UK standards)
- Fixed 430 nm optical channel optimized for beer color quantification per EBC Method 2.1 and ASBC Beer-1
- Interchangeable cuvette holders supporting 5 mm, 10 mm, 20 mm, and 50 mm pathlength cells to accommodate undiluted, diluted, or highly concentrated samples
- LED digital display with EBC-unit labeling and automatic zeroing function
- Robust, portable design (0.9 kg) with IP20-rated enclosure suitable for laboratory and production floor use
- No warm-up time required; stable readings achieved within 2 seconds of sample insertion
- Compliant with GLP documentation requirements through optional audit-trail-enabled software interface (see Software section)
Sample Compatibility & Compliance
The AF330 is validated for use with clarified, particle-free beer and wort samples meeting EBC turbidity limits (< 1 EBC Turbidity Unit). For viscous or highly colored matrices—including syrups, caramel colorants, and unfiltered craft beers—dilution with deionized water or ethanol (as specified in EBC 2.1) combined with extended-pathlength cuvettes ensures accurate placement within the linear range (EBC 2–27). All measurements adhere strictly to EBC Method 2.1 “Colour of Beer and Wort” and are compatible with ASBC Beer-1 “Color of Beer”. Instrument performance is verified annually using NIST-traceable EBC reference standards (Lot-certified by Tintometer Ltd., UK). The device meets CE marking requirements and conforms to IEC 61010-1 for electrical safety in laboratory equipment.
Software & Data Management
While the AF330 operates as a standalone instrument, it supports RS-232 serial output for connection to external PCs running Lovibond’s optional ColorSoft™ Lite software (v4.2+). This Windows-based application enables automated data logging, batch reporting, statistical process control (SPC) charting, and export to CSV or PDF formats. When configured with user authentication and electronic signature modules, ColorSoft™ Lite supports FDA 21 CFR Part 11 compliance—including audit trails, data integrity controls, and role-based access management—for regulated environments operating under GMP or ISO/IEC 17025 frameworks.
Applications
- Routine color QC of finished beer across lager, pilsner, stout, and specialty styles
- Monitoring Maillard reaction progression during kilning and roasting of malt
- Batch-to-batch consistency verification of caramel and roasted malts
- Raw material acceptance testing of liquid colorants and adjunct syrups
- Process validation and troubleshooting in brewhouse filtration and stabilization steps
- Supporting sensory panel correlation studies where objective color metrics anchor descriptive analysis
FAQ
What is the difference between EBC and SRM color units?
EBC (European Brewery Convention) and SRM (Standard Reference Method) are both spectrophotometric scales for beer color; EBC = SRM × 1.97. The AF330 reports only in EBC units per EBC 2.1.
Can the AF330 measure non-beverage samples like fruit juices or pharmaceutical solutions?
It is not validated for such applications. Its optical design, calibration, and firmware are specific to the EBC scale and beer matrix interferences.
Is calibration verification required before each use?
Daily zeroing with a blank (solvent-matched cuvette) is recommended; full calibration verification using EBC reference standards is advised weekly or per internal SOP.
Does the AF330 require annual recalibration by an authorized service center?
Yes—Tintometer Ltd. recommends annual factory recalibration to maintain traceability to UKAS-accredited reference materials.
Are replacement cuvettes and EBC reference standards available directly from Lovibond?
Yes—certified quartz and optical glass cuvettes (10 mm standard), plus NIST-traceable EBC 5, 15, and 25 reference standards, are stocked globally via Lovibond’s authorized distribution network.
