Refractometers

Refractometers for refractive index measurement

Refractometers are precision instruments that use total internal reflection to measure the refractive index. They allow for an instant assessment of the density and degree of purity of the tested liquid. Kruess portable models are ideal for the field, combining lightness with durability, while the DR6000 digital series delivers GLP-compliant reproducibility.

Abbe's AR devices precisely determine the Brix scale and nD coefficient, taking care of stabilizing the prism temperature. Modern measurement systems offer:

• automatic temperature compensation,
• fast data transfer via USB port,
• elimination of manual notation errors,
• verification of sugar and alcohol content,
• Effective detection of contaminants in production.

The use of these tools in industry directly translates into food safety and maintaining the highest production standards.

Kruess Handheld Refractometers for Field Measurements

 Kruess handheld refractometers are mobile optical instruments that successfully replace stationary laboratory equipment in the field. These devices are characterized by high measurement accuracy and resistance to harsh working conditions, making them an ideal tool for professionals.

Their versatility allows for a wide range of applications:

• precise monitoring of sugar levels on the Oechsle scale,
• analysis of must parameters in KMW units,
• control of the degree of ripeness of fruit according to the Babo scale,
• instant checking of glycol concentration in coolers,
• verification of the quality and purity of the AdBlue solution.

The analysis process comes down to applying a drop of liquid to a prism. The result is obtained immediately, which allows for efficient service or production decisions. With their robust housing, Kruess refractometers guarantee reliability during routine technical inspections and field work.

DR6000 Series Manual and Benchtop Digital Refractometers

The state-of-the-art  DR6000 series of digital refractometers brings a new quality to laboratory work. By combining a CCD sensor with a hard sapphire prism, these devices eliminate the risk of reading errors. Four available variants, including the advanced DR6300, allow you to perfectly match your specific testing requirements.

The main advantages of this series are:

• precise CCD sensor, eliminating manual errors,
• extremely resistant to chemicals, sapphire prism,
• integrated SQL database - designed for archiving,
• instant measurement - takes only 2 seconds,
• Reliability in the pharmaceutical and food industry.

In industries where precision is the key to safety, these refractometers are a pillar of quality control. The high durability of the sapphire element guarantees trouble-free operation, allowing you to maintain the highest production standards for years.

Abbe AR Series Refractometers for Precise Laboratory Measurements

AR Series Refractometers This is the foundation of modern laboratory analysis. By using Amici prisms, these devices effectively eliminate white light interference for the highest precision readings. In clinical diagnostics and liquid density studies, Pulfrich's and Jamin's models are also irreplaceable.

Full reproducibility of results is guaranteed by the integrated thermostat, maintaining a constant temperature of 20°C. Stabilization of optical parameters and Brix scale allow for instant assessment of the concentration of solutions, and a modern USB port allows direct data transfer, which eliminates the risk of mistakes during manual recording.

The advantages of these refractometers are:

• elimination of white light interference,
• precise testing of liquid density,
• stabilization of the measurement temperature,
• instant assessment of the concentration of solutions,
• secure transmission of digital data,
• verification of the purity of medicinal substances.

These devices play a key role in the quality control of raw materials. Pharmacy uses them to verify the purity of medicines, and the food industry to monitor production parameters. This ensures that processes are predictable and that the final product meets the highest standards.

Automatic temperature compensation and Brix measurement

Modern measurement technology places great emphasis on thermal stability, as temperature directly affects the refractive index. To ensure the highest precision, modern refractometers use Peltier cells. The integrated ATC system actively stabilizes the measurement environment, which avoids errors and guarantees full reproducibility of results regardless of external conditions.

Professional laboratory equipment goes far beyond the standard framework, offering versatile analytical capabilities such as:

• the popular Brix scale,
• precisely defined dry matter,
• Plato scale used in brewing,
• specialized Baumé units,
• total solids content TDS.

The reliability of the instrument is based on regular calibration using certified standards, which, in combination with digital reading, eliminates the risk of interpretation errors. Automatic correction of the heat effect on the prism makes the quality control process almost maintenance-free and extremely precise.

USB interface and transfer of measurement data to PC

Modern digital refractometers are the foundation of IT infrastructure in industry.  They ensure a smooth data flow thanks to USB connectors, LIMS and SCADA systems. Automatic transfer to SQL databases eliminates human errors, which significantly raises quality and security standards.

The implementation of these solutions offers many practical benefits. These are:

• full compliance with GMP standards,
• use of PAT technology inside pipelines,
• durable IP65 housing,
• precise integration with the adjustment loop,
• real-time monitoring of parameters.

Thanks to automation, refractometers allow for instant correction of production, which optimizes the efficiency of modern technological lines.

Refractometers in the food, chemical and pharmaceutical industries

Today's pipeline-mounted process refractometers enable real-time monitoring. In the food industry, in the production of juices and concentrates, they are a key support. Their design meets EHEDG standards, which guarantees hygiene and operation in CIP and SIP circuits without stopping the line.

This technology works well in many industries, including:

• food industry - in the production of juices,
• chemical sector - in the dosing of raw materials,
• pharmacy - in controlling the quality of substances,
• paper industry - for the analysis of black liquor,
• control systems to limit the loss of raw materials.

Thanks to continuous analytics, plants can effectively optimize processes. The use of these devices allows for the study of the composition of solutions, which ensures repeatability and product quality.

We invite you to check out the refractometers in the DANLAB offer!