Abbe designed an instrument for measuring the dispersion of light and this became the precursor for the so-called 'Abbe Refractometer'. These well established instruments use the highest quality materials and construction methods to achieve high definition borderlines for a very wide range of applications. The available models cover a refractive index range from 1.20 to 1.74. In quality control and research laboratories, Abbe 60 refractometers can be used to measure pure liquids, solutions and formulated products.
Modern laboratories demand very high precision and absolute accuracy.
Abbe 60 models can achieve accuracy to 0.00004 RI or better, depending on sample type. The Abbe 60 Direct Reading models, available in three measuring ranges, have been designed to meet these requirements. The latest designs incorporate an externally mounted LED light source for sample illumination. Refractive Index can be read directly from a scale divided to 0.001 allowing for estimation to 0.0001. Direct reading models are particularly suitable for the measurement of sugar solutions and sugar content of food and drink products.