The Haffmans Vos Rota 2.0 Turbidity Meter is used to measure turbidity during production and after filling. It has a measuring range of up to 500 EBC/34,600 ASBC which makes the instrument suitable for a wide range of beer types, including very turbid beers.
This easy-to-use and reliable lab instrument works by measuring the scattered light caused by particles and incorporating the latest standards from the MEBAK including:
- 90° measurement angle
- Red light 650 ± 30 nm
- Formazine calibration standard
Particles smaller than 1 μm, such as proteins, mainly cause side-scattered light and are measured at 90°. Particles larger than 1 μm, such as diatomaceous earth (DE) and yeast, mainly cause forward-scattered light and are measured at 25°. The dual angle measurement provides operators with fast and reliable insight on the condition of the measured product. This allows for a quick response to deviations in the production process.
The software is intuitive to operate due to a user-friendly interface and a color touchscreen. To take the measurement, the bottle or cuvette is placed in the instrument and clamped with a magnetic centering mechanism. The water level and position of the lid are automatically checked prior to each measurement. Then the sample is rotated, and multiple measurements are taken. Each measurement is stored in the instrument’s logbook and is traceable by a unique sample identification number. For further analysis, the measuring data can be transferred to a Windows-based PC.
The Haffmans Vos Rota 2.0 Turbidity Meter provides simple and easy cleaning and maintenance. The magnets that position and fix the sample do not require tools to remove. In addition, the innovative design eliminates any dead space, which significantly simplifies cleaning. An added advantage is that operators can calibrate the instrument on-site using Formazine according to the MEBAK recommendations. This ensures that the instrument is always in optimal condition.
