Atago 2311 Master Series Hand-Held Automatic Temperature Compensation and Water Resistant Brix Refractometer with Metal Sample Stage, 0.0 - 33.0% ATC and IP65 Measurement Range

The Atago 2311 MASTERα (alpha) is a hand-held, portable, water-resistant refractometer with a Brix scale that measures in the 0.0 to 33.0% range, has automatic temperature compensation (ATC), and is housed in an Ingress-Protection (IP)-65 rated metal body. A Brix refractometer measures the refractive index of a solution in a sample, converts it to sugar concentration in units of percent by weight (% Brix, also known as degrees Brix), and displays the results. Hand-held refractometers, also known as sugar meters, concentration meters, or Brix meters, are commonly used in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, and ecological industries, and for water-testing applications.

This refractometer is housed in a durable, die-cast aluminum metal body for heat and organic solvent resistance. Its body is IP-65 rated (excluding the eyepiece) for protection against dust and water jets, and the unit can be cleaned with running water under a faucet. The 2311 MASTERα features ATC for immediate, accurate readings, regardless of ambient temperature. Calibration can be controlled and adjusted with an unsealed calibration screw and an included specialized screwdriver, although other items can be used to unscrew the unit. However, the unit retains its water-resistance. A spoon-shaped tip allows for automatic sample distribution (ASD) across the prism and boundary line (also called measurement line) for accurate, smooth sampling with small portions. The outer shell grip is smooth and easy to clean, which reduces the possibility of food and sample entrapment, avoiding contamination and bacterial growth. The analog Brix scale features a bright, high-contrast display for clear visibility of the boundary and memory lines intersection. Samples are viewed through a monocular, focusable, cushioned eyepiece. The unit includes a protective plastic storage case with a foam cut-out insert to cushion the instrument.

Specifications

 

*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Refractometers are used to determine substance content in a specimen and to provide readings (in % by volume) such as salinity, Brix, alcohol, and to display content such as chemical impurities, presence of mercury, radioactive materials, or parasites. Refractometers measure the refractive index of a substance, which is its optical characteristic, and the number of dissolved particles in it. The refractive index is the ratio of the speed of light in empty space to the speed of light in a substance; when light passes from one medium to another. Generally, a low concentration sample has a larger angle of refraction than a high concentration sample. For example, when a straw is placed in a substance with high concentration, it appears more bent than when placed in a lower concentration sample. Refractometers can work with ambient (natural) light, or with an external power source such as batteries or electricity. Common types include hand-held, pocket, and bench-top. Hand-held units typically have an elongated body shaped like a telescope, fit in a hand, and are portable. A reading can be obtained by looking through the monocular eyepiece, and viewing where the boundary line intersects with the memory line. Pocket units fit in a hand, as well as in many trouser pockets. Bench-top instruments measure with a higher degree of accuracy than hand-held or trouser units. Refractometers are available in analog models, which can be used for solid and liquid measurement, and digital models, which are used exclusively for liquid measurement. Some units utilize both analog and digital readings. Refractometers are commonly used in a wide variety of applications in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, ecological, and automotive industries, and for water-testing applications.

Atago Co., Ltd. manufactures analytical instruments such as refractometers, polarimeters, and saccharimeters, as well as a variety of meters. The company, founded in 1940 and headquartered in Tokyo, offers products that comply with Hazard Analysis and Critical Control Points (HACCP), Good Manufacturing Practices (GMP), and Good Laboratory Practices (GLP) system standards, and many International Organization for Standardization (ISO) standards.

What’s in the Box?

• 2311 MASTERα refractometer
• Calibration screwdriver
• Plastic storage case
• Instructions