Compact Refractometer by S+H


Compact Refractometer

The SCHMIDT + HAENSCH ATR-BR is a stand-alone, critical angle refractometer for measuring liquid media from low to high viscosity, independent of opacity and color. It is adaptable to different applications in production and laboratory thanks to a broad variety of configurations while having an excellent price-performance ratio.

 This product is subject to a new design . Please contact us for more information. 

ID-N° 11890


  • Robust refractometer
  • Stand-alone device
  • Stable , precise measurements
  • Versatile applications
  • Easy handling, user-friendly operation
  • Excellent price-performance ratio
  • Flat and small sample chamber for easy cleaning

Easy in Use

A sample volume of 0.3 ml is sufficient for a very stable measurement of high quality and precision. The software of the ATR-BR, designed close to the practice makes it possible to calculate the mean value and to determine standard deviation and adjustable measuring delay for special measurement in dependence of the temperature.


In the chemical industry, ATR-BR can be used for analyzing a range of compounds, such as solvents, organic polymers, distilled products, or solutions of inorganic compounds. In the food and beverage industry, the ATR-BR can be applied to analyze yoghurt, jam, fruit extract, syrup, honey, coffee extract, vegetable fat, albumen, chocolate, milk, and baby foods. The quality of soft drinks, fruit juice, wine, and beer can be controlled. Medical applications include analysis of serums, blood, and urine. In the petrochemical industry, ATR-BR can be used to monitor e.g. oils, fats, waxes, naphthalenes, raw oils, varnishes, paints.

Product in depth

Up to ten user-defined scales, one of which is programmed as Brix scale by the factory, can be programmed. The casing design offers more space for a bigger LCD display and a splash proofed foil keyboard enabling to batch numbers to be entered directly. The user friendliness and easy handling of the ATR-BR also allows for the creation and printing of forms. All functions may also be controlled via PC using the remote control program. The ATR-BR also has a serial to Ethernet (local area network) converter for data transfer.


Measuring scales  Refractive Index (RI), Sucrose (%Brix), others on request
Measuring range  1.32000 – 1.54000 RI / 100% Brix
Resolution 0.00001 RI / 0.01% Brix
Precision Measuring range 1.32 – 1.44:  ± 0.00002 RI / ± 0.01% Brix *; Measuring range 1.44 – 1.54:  ± 0.00003 RI / ± 0.01% Brix *
Reproducibility  ± 0.00001 RI / ± 0.01% Brix
Ambient temperature  + 10 °C to + 40 °C
Automatic temperature compensation + 5 °C to + 50 °C
Temperature measurement NTC sensor for measurement of sample temperature placed inside the prism
Technical control sample No control
Measurement mode  Single measurement
Prism  Sapphire
Light source / wavelength LED, interference filter 589 nm
Display  Back-lit LCD, 16 x 16 characters
Operation 20 key membrane including function keys
Interfaces 1 x RS232 C serial and parallel
Standard model  ATR-BR
Conformity  International Pharmacopoeia, ASTM, AOAC, DIN, FDA, ICUMSA and others
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