How the refractometer works:

When light enters a liquid it changes direction – this is called refraction. Refractometers measure the degree to which light changes direction, called refraction angle.

The refractometer takes refraction angles and correlates them with refractive index (nD) values ​​that have been determined. You can use these values ​​to determine the concentration of the solutions. For example, solutions have different refractive indices depending on their concentration in water.

The refractometer measurement procedure is as follows:

  • Pipette on a strictly (refractometer slide) the alcohol you want to measure so that it is spread over the entire slide.
  • Then close the cover and look against the light source.
  • The scale is divided into blue and white fields, the boundary of the distribution shows the value of alcohol.
  • ATC temperature compensation is useful because the refractometer retains measurement accuracy at various temperatures, such as 20 ° C.
  • You can refocus the refractometer through the eyepiece for good readings.
    The refractometer no requires extra  maintenance or charging. It is without batteries and you can measure almost immediately.
  • Easy calibration – just turn the trimmer on top and the refractometer shifts the value.

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