The KEM, Japan portable Refractometer model RA130 is a light-weight system, easy-to-use and a handy one.  It is a microprocessor controlled instrument with an LCD display.  The sample can either be dripped on the prism or the prism of the system can also be dipped into the sample beaker to measure RI.  It is equipped with an Infrared port for easy data transmisison to a computer.


  • Wide measuring range Brix : 0 - 85% Refractive index : 1.3200 - 1.5000
  • Data storage : 1,100 measurement results.
  • Can display measurement results in Refractive Index (RI), Temperature compensated RI, Brix %, HFCS42, HFCS55 & Temperature (Deg C / Deg F)
  • Automatic data saving and Automatic data output can be chosen.


  • Measurement of sucrose concentration of fruits juices.
  • Measurement of sucrose concentration of jam and honey.
  • Brix measurement on beverages.
  • Brix measurement on liquid seasoning.
  • Concentration control on pharmaceutical and medical liquid samples



Measuring range nD : 1.3200 – 1.5000
Brix : 0 – 85%
HFCS42 : 0 – 76%
HFCS55 : 0 – 80%
Accuracy nD : ±0.0005
Brix : ±0.2%
HFCS42/55 : ±0.2%
Resolution nD : 0.0001
Brix : 0.1%
HFCS42/55 : 0.1%
Temperature range 10 – 40°C
Display contents Refractive index, Temp. comp. RI, Brix, HFCS42, HFCS55,and Temperature ( &de°F )Sample number, Data storage, Data output, Data deletion,
Battery alarm and the like.
Temperature compensation

Up to 10 kinds of input for temperature compensation coefficients of measured samples and compensation temperatures.

Data storage 1,100 measurement results

External output


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