Abbe refractometer
1.2-1.74 RI, 350 - 800 nm | Abbe 60
Bellingham + Stanley
Abbe 60 Direct Reading Refractometers
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.
