AMTAST Optical Instruments

WYA-2W Binocular Abbe Refractometer

Keywords: Abbe refractometer, binocular refractometer, nD Brix measurement, laboratory optical instrument, sugar concentration tester

Precision optical instrument for refractive index nD and Brix measurement in laboratory and quality control environments.

The WYA-2W Binocular Abbe Refractometer is a precision optical instrument designed for measuring the refractive index nD and average dispersion nF-nC of transparent or translucent liquid and solid substances. It also measures the mass fraction (Brix) of cane sugar solution, making it an essential tool for laboratories across multiple industries.

Built with a robust die-cast metal base and hardened optical glass prisms, the WYA-2W delivers reliable, long-term stability. Its binocular viewing system reduces operator fatigue during extended use, while the optical index-plate reading ensures accurate, parallax-free measurements.

Key Features

1.  Dual Measurement Capability — Measures refractive index nD (1.3000–1.7000) and average dispersion nF-nC of transparent or translucent liquid and solid substances.

2.  Brix Concentration Testing — Measures mass fraction (Brix) of cane sugar solution from 0% to 95%, ideal for food and beverage quality control.

3.  Binocular Optical System — Features 2X telescope objective and 22X reading objective magnification with binocular observation for comfortable, fatigue-free operation.

4.  Visual Aim & Optical Reading — Utilizes visual aim with optical index-plate reading for precise, direct measurement without electronic dependency.

5.  Wide Industrial Applications — Suitable for sugar, pharmaceutical, beverage, petroleum, food, chemical industries, as well as research institutes and educational departments.

How to Use

1.  Prepare Sample — Place 1–2 drops of transparent or translucent liquid sample on the polished surface of the refracting prism.

2.  Align & Focus — Close the prism assembly and adjust the compensator and focusing eyepiece to align the boundary between light and dark fields in the reticle.

3.  Read Result — Read the refractive index nD or Brix value directly from the optical scale through the binocular viewing system.

4.  Clean Prism — After measurement, clean the prism surface with lens paper and approved solvent to maintain optical fidelity.

Technical Specifications

Applications

1.  Sugar industry — concentration detection of sugar solutions, syrups, and molasses.

2.  Pharmaceutical industry — quality control of drug formulations, injections, and syrups.

3.  Beverage industry — Brix testing in fruit juices, soft drinks, honey, and dairy concentrates.

4.  Petroleum industry — refractive index screening of lubricants, transformer oils, and fuel blends.

5.  Food industry — quality assessment of edible oils, glycerin, and food additives.

6.  Chemical industry — purity assessment of solvents, monomers, and organic compounds.

7.  Research institutes and educational departments — teaching fundamental optical principles and analytical methodology.

Spare Parts

Standard correction block, contact liquid (bromonaphthalene), lens cleaning paper, precision screwdriver. Optional: 6V halogen lamp for low-light or indoor laboratory environments.