Description
Classic Abbe refractometer AR4 allows refractive index and %Brix to be measured and read through the eyepiece for traditional optical laboratory analysis. This instrument follows the established Abbe principle, giving operators direct visual access to the measurement scale via the ocular for transparent liquid samples. It is appropriate for educational laboratories, routine quality control and applications where a robust optical refractometer without digital electronics is preferred. Net weight is 2,5 kg and gross weight is 3 kg, providing a compact yet stable benchtop instrument for everyday use. Brix scaling supports determination of soluble solids content alongside refractive index readings, covering common needs in food technology, chemical laboratories and materials characterisation. Supplied as one complete unit and originating from Germany, the classic Abbe refractometer from manufacturer Krüss remains a dependable choice where optical clarity, straightforward operation and familiar Abbe geometry are required. The eyepiece-based readout keeps the workflow simple and independent of external power for the optical observation path itself.
This article is part of Refractometers & polarimeters, in Spectroscopy & photometry.
Key features
- Pack size: 1 pc
- Product type: Refractometer
- Model: AR4
- Measurement parameters: Refractive index and %Brix
- Readout: Eyepiece / optical
- Technical Information Sheet:
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Questions about Classic Abbe refractometer
What is this article?
Classic Abbe refractometer is the article on this page. Luminix Health distributes Krüss for laboratory use. It sits in Refractometers & polarimeters, inside Spectroscopy & photometry, in Lab instruments.
A refractometer reads the refractive index of a liquid, often expressed as Brix for sugar. A polarimeter reads the rotation of polarised light. Both depend on temperature. A handheld refractometer and a thermostated benchtop instrument are different accuracies.
A photometer or spectrophotometer sends light through a sample and reads how much was absorbed. In the range where the Beer–Lambert relation holds, absorbance tracks concentration. A refractometer reads how a liquid bends light, which tracks dissolved solids. A polarimeter reads the rotation of polarised light, the classical measurement for sugars. The lamp, the wavelength and the cuvette path length are the three things that have to be right before the number means anything. The optical quantities trace to NIST and the BIPM.
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The category is Spectroscopy & photometry. The sub-category is Refractometers & polarimeters. The catalogue is Lab instruments.
Shelves beside this one are Photometers & spectrophotometers and Lamps, cuvette holders & accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
