Chemistry

Abbe Refractometer model AR4

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The AR4 determines the refractive index between 1,3000- 1,7200 nD and the sugar content in the range of 0-95 %Brix. The refractometer can be connected to a thermostat, e.g. our PT31 circulation thermostat with Peltier element, for temperature control at 20 °C or 25 °C. The temperature is determined with the integrated digital thermometer and displayed on the LCD.
  • Simple operation and low sample throughput.
  • Very robust. Supplied with calibration glass sheet, contact liquid and screwdriver.
  • Ideal for solid, viscous and liquid samples (transparent and opaque).
  • Measurement of refractive index nD, dispersion nF-nC and solid matter content in Brix is possible, as well as prism temperability.
  • The measurement procedure is based on the Abbe measurement principle.
  • Includes digital thermometer.
  • Complies with ASTM D1218
Indicator: Ocular (AR4)
Digital indicator (AR4D)
Measuring range: 1,3000-1,7200 nD (AR4)
1,3000-1,7000 nD (AR4D)
0-95 %Brix
Accuracy: 0.0002 nD
0.1 %Brix
Scale division: 0.0005 nD
0.25 %Brix
Power supply: 110 V or 220 V (switchable)
Temperature measurement: digital thermometer -50 to 200 °C
Illumination: Scale illumination and LED illumination (590 nm) by the prism
Dimensions: 140 X 100 X 235 mm (AR4)
230 x 110 x 270 mm (AR4D)
Weight: 4.4 kg (AR4)
5.5 kg (AR4D)
Adjustable scale
Prism temperar
Complies with ASTM D1218
Complies with ISO 489

Refractive index
% Brix

GMP/GMP
21 CFR, Part 11
Pharmacopoeias (USP, BP, JP, Ph. Eur.)
FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST
ASTM D1218
ISO 489

Calibration solutions
Measuring and illumination prisms
Digital thermometer
Thermostats
Other accessories, please contact us.

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