Analog Abbe refractometer

AR4

Abbe refractometer AR4

Abbe refractometer AR4

Abbe refractometer AR4 with circulating thermostat PT31

Abbe refractometer AR4 with circulating thermostat PT31

Key features
Applications
Key features

The AR4 determines the refractive index between nD 1.3000–1.7200 and the sugar content in the range of 0–95 %Brix of liquid, viscous as well as solid samples. Dry substance content in % and the dispersion value nF-nC can be calculated.

  • Measurement of liquid, viscous and solid samples, regardless of their turbidity, viscosity, transparency and absorption
  • Suitable for the measurement of foils and solids
  • Large measuring range of nD 1.3000-1.7200 and 0-95%Brix, scale manually adjustable
  • Reading the measured values via an eyepiece
  • Robust housing and easy handling
  • With thermostat connections that allow for the temperature control with an external thermostat
  • Temperature is displayed on LCD screen
Applications

Typical applications

The Abbe refractometers have a wide range of applications in the chemical, petro-, oil- and fat industries, in the food industry, in hospitals, pharmacies and research offices, as well as in research and teaching. The special feature is the possibility to measure not only liquid and viscous samples but also solids and foils. Main application fields are:

  • Identity test, purity control and concentration determination of raw materials, semi-finished products and end products
  • Determination of the sugar concentration
  • Incoming and outgoing goods inspection
  • Purity control
  • Testing of food and pharmaceutical products
  • Testing of the compliance with national and international standards
  • Training

For a comprehensive overview of typical applications visit our campus review Refractometer applications.

Model specifications

 AR4
MAIN SPECIFICATIONS
SCALESRefractive index (nD)
Concentration of sucrose [%Brix]
MEASUREMENT RANGEnD 1.3000–1.7200
0–95 %Brix
ACCURACY nD ±0.0002
±0.1 %Brix
RESOLUTIONnD 0.0005
0.25 %Brix
TEMPERATURE MEASUREMENTDigital thermometer
TEMPERATURE MEASUREMENT RANGE0–99 °C
TEMP. MEASUREMENT ACCURACY±0.5 °C
TEMP. MEASUREMENT RESOLUTION0.1 °C
TEMPERATURE COMPENSATION-
FURTHER SPECIFICATIONS
MEASUREMENT PRISMOptical glass
LIGHT SOURCELED
WAVELENGTH589 nm
CONTROLReading via eyepiece

Technical data Abbe refractometers (PDF, 240 KB)

Circulating thermostat PT31

Temperature range 8-40 °C- The electronic circulating thermostat with Peltier element is a versatile and powerful device for controlling the temperature of refractometers and polarimeters. It is extremely robust, compact and easy to use. Due to its small size, it requires little space in the laboratory.

Circulating thermostat PT31
 

Calibration standards refractometers

Certified, traceable reference materials

Calibration standards RI
 

Service

Application Consulting

We are happy to assist you with product and application questions - by telephone, on site or in our training center in Hamburg. Whether it's advice and support, quick problem solving through application experience, help with system automation and integration, questions about industry standards, our experts are there for you.

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Any Questions?

We will be glad to help.

+49 40 514 317-0

sales@kruess.com

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