Abbe Refractometers

ATAGO's Abbe Refractometers are highly reliable instruments that measure Refractive Index.

Compared with other types of refractometers, the Abbe refractometers are capable of measuring liquid and solid samples such as plate glasses, plastic sheets, and other solid films.

NAR-1T LIQUID - For Measuring Liquid Samples Only

The NAR-1T LIQUID is for liquid sample measurement only. This model has the Refractive Index scale and Brix scale, and operates with D line (589nm) light source. Calibration is performed using distilled water. 

NAR-1T SOLID - For Measuring Solid Samples

The NAR-1T SOLID Abbe Refractometer was designed for solid sample measurement (this model can also measure liquid samples). This model has the Refractive Index scale and Brix scale, and operates with D line (589nm) light source.

NAR-2T - High-Temperature Model 

Designed for use with compounds that require measurement at high temperatures (up to 120°C). Capable of measuring samples from 5 to 120°C, such as substances with a melting point higher than room temperature, or compounds containing substances with a transition temperature below 120°C. Aside from liquid samples, glass, films, plastics and other solid samples can also be measured.

Optional accessories: Circulating constant temperature bath (up to 60°C).

NAR-3T - Precision Model

The NAR-3T is the unit with the highest degree of precision and accuracy among the Abbe Refractometers. It was developed to give improved measurement accuracy and ease of use. This was achieved by making fundamental improvements to the optical system and utilizing a larger scale, which allows for refractive index scale measurements of up to 0.00005. Incorporating a high-intensity lamp and using a double control knob gives quick and more accurate control.

NAR-4T - High Refractive Index Model

Research and Development on new materials for modern technologies is being actively conducted in every industry. Many of these materials (especially polymer film and related materials) are of high refractive index - often too high for the existing Abbe refractometers. These can now be measured with the nD 1.4700 to 1.8700 range of the NAR-4T.

*Dispersion values cannot be measured with this unit.