Description
The analogue refractometer KERN ORA 3AB is a universal, maintenance-free handheld instrument for refractive index measurement in laboratory and industrial environments. Handy, robust construction supports simple, efficient and lasting everyday operation. Several selectable scales eliminate manual conversion effort and reduce application errors. These scales are specially developed, exactly calculated and checked, and feature very thin, clear lines. The optical system and prism cover are manufactured from materials that enable low-tolerance measuring. All models include an eyepiece with straightforward, smooth adjustment for different eyesight requirements. This model from manufacturer Kern is particularly suitable for determining the sugar content of beer original wort in the unfermented state; with the Stammwürze (specific gravity) scale the value can be read directly without conversion. The main application area is brewing. Included in the delivery are a storage box, calibration solution, pipette, screwdriver and cleaning cloth; further accessories are available optionally. Pack size is 1 piece, with a net weight of 0,30 kg and a gross weight of 0,35 kg.
This article is part of Refractometers & polarimeters, in Spectroscopy & photometry.
Key features
- Pack size: 1 pc
- Product type: Analogue handheld refractometer
- Series: KERN ORA-AL
- Measurement focus: Beer original wort (Stammwürze / specific gravity)
- Scales: Multiple selectable scales, direct Stammwürze readout
- EAN: 4045761261051
- Technical Information Sheet:
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Questions about Analogue Refractometer KERN ORA 3AB
What is this article?
Analogue Refractometer KERN ORA 3AB 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.
Which category should I open next?
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.
