ABBE refractometer AR12

PDF data sheet
  • Broad measuring range
  • Simple handling
  • Small sample volume needed
  • Water bath lockable
  • Ideal for school/education
ABBE refractometer AR12

The SCHMIDT + HAENSCH ABBE refractometer AR12 is a classical, visual refractometer, named after ist inventor Ernst Abbé and designed for the determination of the refractive index of liquid media with high or low viscosity. It is used in the fast control of liquids and the “in-field analysis“.

The ABBE refractometer AR12 is equipped with hose connections at the prism unit for the thermostatisation of the optical parts. The temperature is measured with a digital thermometer. The measuring principle is based on the law of Snellius (law of refractive index) and is able to measure with transmitted or totally reflected light. With a contact fluid even solids can be measured with the ABBE refractometer.

Optional an illumination unit is available for prism and scale illumination with a LED.


Main specifications

Measuring scales Refractive Index (RI) Sucrose (%Brix)
Measuring range 1,3000 – 1,7000 RI / 0 – 95 %Brix
Resolution 0,0002 RI / 0,1 %Brix
Precision ± 0,0002 RI / ± 0,1 %Brix
Reproducibility 0,0002 RI / 0,1 %Brix
Measurement mode Single sample


Ambient temperature +10 - +40 °C
Temperature measurement external digital thermometer
Temperature control sample by external water bath
Temperature control range on request
Temperature resolution depends on the external water bath
Temperature precision depends on the external water bath
Temperature reproducibility depends on the external water bath
Temperature compensation Brix with external calculation

Additional information

Prism Glass
Light source/wavelength daylight or optional LED with 590 nm
Display no display, visual instrument


Standards ASTM AOAC, DIN, others

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