The Atago 3480 PR-RI Palette is a digital refractometer that measures refractive index concentration (1.3306 to 1.4436nD), has + or - 0.0002 (water at 20 degrees C) measurement accuracy, a user-scale function, and external light interference (ELI). A refractometer measures the refractive index of a liquid or solid in a sample, converts it to concentration in units of percent by weight, and displays the results. Refractometers are commonly used in the optical, chemical, geological, ecological, culinary, food and beverage, pharmaceutical, and educational industries, and for water-testing applications. This refractometer features programmable user scales that enable control of various liquid concentrations. The unit has a digital, LED-illuminated continuous digital display of nD, and measurement temperature of 5 to 45 degrees C with resolution of 1 degree C. It has external light interference (ELI) technology for accurate measurement near windows or outdoors. The unit measures from 0.3mL droplets of sample, and provides measurement results in three seconds in a sample measurement temperature range of 5 to 45 degrees C. It can be calibrated with distilled water. The unit’s sample well is made of stainless steel 316 for durability. It works with a 9V battery (included), and comes with a carrying case. The 3480 PR-RI has Ingress Protection (IP)-64 rating for protection against dust and liquids. Specifications Measurement scale range 1.3306 to 1.4436nD Resolution 0.0001nD Accuracy + or - 0.0002 (water at 20 degrees C) Sample measurement temperature range 5 to 45 degrees C (resolution at 1 degree C) Ambient temperature 10 to 40 degrees C Sample volume 0.3mL Light source and display type LED digital, nD, and temperature Power source 9V battery (included) Standard met Ingress Protection (IP)-65 Dimensions 4 x 17 × 9cm (H x W x D) Weight 300g 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 sample, to provide unit readings of substances including Brix, salinity, and alcohol; to detect chemical impurities, or to measure components of samples such as industrial fluid. 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, a straw placed in a high-concentration substance appears more bent than when placed in a low-concentration substance. Refractometers can work with natural light, or with an external power source such as batteries or electricity. They typically have either a digital or analog reading display, though some units utilize both types. Some analog-display refractometers can be used for both solids and liquids. Digital-display refractometers are used exclusively for liquids. Types of refractometers include handheld, benchtop, and in-process. Handheld refractometers are elongated and telescope-shaped, or shorter and rectangular. Analog handheld refractometer readings are obtained by looking through the monocular eyepiece and viewing where the boundary line intersects with the memory line. Digital handheld models provide a digital readout. Benchtop refractometers typically measure with a higher degree of accuracy than handheld units. In-process refractometers are used for continuous process monitoring and data readouts, and are generally fitted into a piping system for ongoing analysis. Refractometers are 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? 3480 PR-RI refractometer 9V battery Carrying case Instructions
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