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 scalesRefractive Index (RI) Sucrose (%Brix)
Measuring range1,3000 – 1,7000 RI / 0 – 95 %Brix
Resolution0,0002 RI / 0,1 %Brix
Precision± 0,0002 RI / ± 0,1 %Brix
Reproducibility0,0002 RI / 0,1 %Brix
Measurement modeSingle sample


Ambient temperature+10 - +40 °C
Temperature measurementexternal digital thermometer
Temperature control sampleby external water bath
Temperature control rangeon request
Temperature resolutiondepends on the external water bath
Temperature precisiondepends on the external water bath
Temperature reproducibilitydepends on the external water bath
Temperature compensation Brixwith external calculation

Additional information

Light source/wavelengthdaylight or optional LED with 590 nm
Displayno display, visual instrument


StandardsASTM AOAC, DIN, others

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