More stringent requirements of quality control and, in some cases, changing legislation, mean that greater accuracy is being demanded of refractometers. The Abbe 60 Direct Reading models, available in two measuring ranges, have been designed to meet these requirements. The latest designs incorporate an externally mounted LED light source for sample illumination. A wavelength compensation device is used to ‘achromatise’ to the mean sodium wavelength (589.3nm). Refractive Index can be read directly from a scale divided to 0.001 allowing for estimation to ±0.0001. Temperature control can be achieved by circulation of water; prism temperature is displayed in digital form. Direct reading models are particularly suitable for the measurement of sugar solutions and sugar content of food and drink products. They can also be used to determine the refractive index of pure liquids, solutions and formulated products including: flavourings, fragrances, oils and fats, solvents, plastics, resins, adhesives and many other industrial chemicals. Instruments come complete with external power supply, standardisation plate and contact liquid, plastic dust cover and instructions for use. Features LED Sample Illumination LED Scale Illumination Transmitted/Refected Light (ED/LR only) Solid Samples
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