نقد و بررسیرفرکتومتر چشمی مدل Master-53T ساخت کمپانی آتاگو ژاپن
The Atago 2352 MASTER-53T is a hand-held, portable refractometer with a Brix scale that measures in the 0.0 to 53.0% range, has automatic temperature compensation (ATC), a spoon-shaped tip for automatic smooth sampling (ASD), and a 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 metal body for heat and organic solvent resistance. The 2352 MASTER-53T features ATC for immediate, accurate readings, regardless of ambient temperature. Calibration can be controlled and adjusted with an exposed 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, and sample disposal from the edge. With ASD, the daylight plate does not need to be lifted to cover the prism with the sample. 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.
|Measurement scale range||Brix 0.0 to 53.0 percent (ATC)|
|Minimum detection scale||Brix 0.5 percent|
|Accuracy||Brix + or – 0.5 percent at 10 to 30 degrees C|
|Resolution||Brix + or – 0.25 percent|
|Sample volume||10μl or more|
|Illumination||Ambient light; unit requires no additional power source|
|Dimensions||16.8 x 3.2 x 3.4 cm (H x W x D)|