Precise refractometers for the laboratory buy online

Refractometers in the MedSolut product range

At MedSolut you can obtain high-quality instruments of the brands KERN and KRÃœSS. These are Abbe, handheld and process refractometers for different applications.

A.KRÜSS AR2008

The digital Abbe refractometer AR2008 from A.KRÜSS is characterized in particular by its large measuring range. Here you can quickly and reliably determine the sugar content in the range from 0-95 % Brix of liquid to solid samples as well as the refractive index between nD 1.3000-1.7200. The integrated electronic evaluation of the measured data can also be coupled to a PC or printer via the serial interface.

A.KRÜSS DR600

The digital A.KRÜSS DR600 models can be used to measure all samples containing sugar. These instruments are particularly suitable for precise measurements of samples from the food and sugar industries. Pre-installed scales in tables, which can also be freely defined, ensure a comfortable workflow in the laboratory.

KERN ORF-E

Our maintenance-free, digital refractometer ORF-E from KERN guarantees a comfortable and fast handling in the daily laboratory routine due to its handy as well as robust design. The large TFT color display as well as an integrated temperature compensation (ATC) support an efficient working method without manual conversion of measurement results.

How does a refractometer work?

The speed of light depends on the density of a medium in which it propagates. The greater the refractive index of this medium, the slower the speed of light. The reason things appear different under water than when viewed at the "air-to-water" interface is because of refraction. Refraction and reflection of light occurs at the interface of two media that have different refractive indices.In the case of a total reflection, the light is no longer refracted, but only reflected.

This critical angle in a total reflection varies from material to material and is therefore used to determine the refractive index with a refractometer. The instruments can determine the refractive index of liquid or solid substances. Handheld refractometers and Abbe refractometers work with transmitted light. In contrast, digital refractometers measure the critical angle of total internal reflection in reflection.

Thus, the light does not have to pass through the sample. A digital refractometer has a photodetector on which total reflection produces an illuminated and non-illuminated area from which the refractive index can be determined.The refractive index can be used to determine the identity, quality and concentration of substances. For example, if sugar is added to a glass of water, the refractive index changes depending on the amount added.

Top design: refractometer

Highly accurate and reproducible measurement results are provided by our digital instruments of the DR6000 series from A.Krüss for semi-automatic or fully automatic operations. Three different model groups are available here, which you can easily integrate into your existing workflows in the laboratory.

Our Abbe refractometers from A.Krüss allow an uncomplicated and fast measurement of the refractive index of your samples.In addition to transmitted light, you can also measure solid substances with Abbe refractometers thanks to reflection in addition to liquid samples. With the AR4 and the AR2008 we have two classic instruments from A.Krüss in our product range. The measurement and evaluation of the AR2008 is done digitally and with the AR4 the reading of the measured value is done via the eyepiece.

Mobile use of manual refractometers also outside the laboratory

With the manual A.Krüss hand refractometers you have the choice between different versions with different scales. Hand refractometers are handy and robust and are popular with our customers due to their suitability for everyday use. You can use the small hand refractometers mobile everywhere.

They are characterized by their easy handling and selectable scales and do not require batteries. You can use hand refractometers e.g. for the determination of salt content, water content in honey, Oechsle, Brix and potential alcohol content. Other advantages of the manual devices are in particular:

• Automatic temperature compensation
• Compact and robust design for mobile use
• Good resolution of the scale ranges
• Easy calibration and adjustment

If you want to save time during mobile measurements, you will achieve best results with a digital hand refractometer like the KERN Digital ORF-E or also the A.KRÜSS Optronic Digital Hand Refractometer.

With such a device, you can perform spot checks or even regulate mixing ratios directly on site. In contrast to manual hand refractometers, reproducible measurement results are determined digitally and are not dependent on the user's interpretation. Advantages of a digital hand refractometer are in particular:

• Very simple and fast operation
• Automatic measurement with high accuracy
• Fast filling and cleaning
• Low weight and robust processing with stainless steel
• Brix scale with automatic temperature compensation
• Measurement results are displayed in different units

Do you want to take measurements in a production plant? This is exactly what the PR21S process refractometer from A.KRÜSS was designed for. Thanks to standardized connections, the measuring instrument can be easily installed in the piping of a production plant.

A measuring chamber made of stainless steel and a measuring prism made of scratch-resistant and chemical-resistant sapphire withstand the high stresses in the production environment and you get precise measuring results.

Refractometers for quality processes in the laboratory

Refractometers are used in a wide range of applications. From measuring the sugar content in foodstuffs to determining the purity and concentration of medications to identity testing and concentration determination in the petrochemical or automotive industries.

They are used, for example, for quality control of operating materials for machines and engines. Refractometers are also used to measure the synthetic urea solution in AdBlue, for the treatment of diesel engine exhaust gases. Other areas of application are:

• Food industry: quality and purity control of sugar, honey, oils, seasonings, dairy products, baby food, etc.
• Manufacturers of flavors, fragrances and essential oils: Quality control of raw and auxiliary materials for essential oils, flavors and fragrances, e.g. for the food and tobacco industries.
• Hospitals and pharmacies: quality control of goods and pharmaceuticals, e.g. urine, blood sera, infusion solutions, medicaments
• Pharmaceutical industry: Characterization tests in research and development as well as identity checks of pharmaceuticals, blood sera, infusion solutions, dialysis preparations, among others.

Refractometers - how calibration and measurement work

With the refractometers from our range, virtually all samples can be measured - whether basic, acidic, low viscosity or high viscosity and from light to dark, there are virtually no limits to the measurement of your substances in the laboratory or even for mobile applications.

• Intelligent evaluation algorithms, state-of-the-art optics and a powerful LED enable measurements of liquid or solid samples, no matter how challenging they may appear.
• Instruments with stainless steel wells and sapphire prisms can easily measure aggressive acids and bases. A highly refractive contact liquid allows even the determination of foils and solids.
• Regular calibration and adjustment of the instrument is important to ensure that it consistently delivers extremely reliable measurement results. This can be ensured using a simple method by checking the water value. This is done using the refractive index (nD) of distilled water, which is exactly 1.33299 at a temperature of 20 °C (589 nm).
• If you do not hit this value during your check, you can perform a single-point adjustment using the Tare function, e.g. on an A.Krüss instrument. The instrument adjustment is thereby adjusted with the currently measured value.
• If you perform a subsequent calibration on an instrument, certified and traceable standards are recommended, such as those used by the instrument manufacturer during commissioning, IQ/OQ/PQ or annual maintenance. This allows the specified measurement inaccuracies of the refractometer to be checked and validated.

Service for refractometers at MedSolut

As a customer, you are our focus, which is why we do our best with our product, service and performance portfolio for refractometers and many other laboratory instruments to ensure your long-term satisfaction.

No matter whether before the purchase or afterwards: We are happy to advise you at any time and also offer additional services such as calibration, maintenance and repair in cooperation with our partners and manufacturers.You can rely on our professional advice and expertise. Convince yourself of our wide product range for laboratory technology on MedSolut.com.

Find the ideal refractometer at MedSolut

With a refractometer from our product range of the brands A.KRÜSS and KERN you can measure the refractive index of your samples with highest precision, no matter if liquids, pastes or solids. The analytical measuring instruments in manual or digital version can be put into operation by your laboratory team without extensive training due to their easy handling.

With the numerous advantages and outstanding product features, you will find it easy to integrate the instruments into existing workflows and processes in the laboratory in no time at all. Take advantage of MedSulot.com's application consulting services for this purpose.

We will be happy to answer any detailed questions you may have about the product. You can reach us by phone at and by e-mail at info@medsolut.com. We look forward to hearing from you!