Description
Handheld refractometer ORA 3AA (with ATC) is an analogue instrument for refractive index determination in routine laboratory and process work. It covers a Brix range of 0–32% and a specific gravity span of 1.000–1.130, supporting concentration checks on aqueous solutions, juices, and related samples. Automatic temperature compensation (ATC) helps stabilise readings when ambient conditions change during measurement. The compact handheld format suits bench-side spot checks as well as field or production-line sampling where a portable optical scale is preferred over a digital bench unit. Supplied as a single piece from manufacturer KERN, the instrument weighs 0,300 kg and is intended for applications in physical-property determination and refractive-index workflows. Analogue scale readout keeps operation straightforward without batteries or external power. Use it wherever rapid Brix or specific-gravity screening is required before more detailed analytical confirmation. The unit integrates cleanly into standard laboratory equipment sets for refractive index determination and supports consistent day-to-day quality control sampling.
This article belongs on Refractometers & polarimeters, in Spectroscopy & photometry.
Key features
- Pack size: 1 pc
- Type: Analogue handheld refractometer
- Measuring range: 0–32% Brix
- Specific gravity range: 1,000–1.130
- Temperature compensation: With ATC
- EAN: 4045761483064
- Technical Information Sheet:
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Questions about Handh. refractometer, ORA 3AA (with ATC), Analogue, 0-32% Brix
What is this article?
Handh. refractometer, ORA 3AA (with ATC), Analogue, 0-32% Brix is the article on this page. Luminix Health distributes KERN 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.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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