Gemmology

Refractometers

A.KRÜSS refractometers measure the refractive index of liquids, pastes and solids with high precision. In close cooperation with well-known partners from industry and research, we have developed refractometers that can be easily integrated into existing processes in the laboratory.

7-inch-DR6000-Series

Digital refractometers

Determination of refractive index

Refractometers DR6000 series
Abbe refractometer AR2008 single view

Abbe refractometers

Determination of the refractive index in the classical way

Abbe refractometers AR2008/AR4
Process refractometers PRB21S

Process refractometers

Inline and Bypass Real time measurement - directly in the pipeline or in a tank

Process refractometers PR21-Serie
Digital handheld refractometer group

Digital handheld refractometers

Digital on-site measurements at the touch of a button

Digital handheld refractometers

Handheld refractometers

The cheapest way to measure the refractive index

Manual refractometers
calibration siegel

Calibration standards refractometers

Certified, traceable reference materials

Calibration standards RI

Campus

What is Refractometry?

When we view objects through the surface of water, how does the refraction of light result in us seeing such objects with a “kink“?
What does the “kink” have to do with the refractive index and refractometers?
How do refractometers measure the purity and concentration of ingredients or the sugar content of beverages?

What is Refractometry?
 

Refactometer applications

Refractometers are used for quality assurance in the pharmaceutical, chemical, food and beverage industries as well as in the production of flavours, perfumes and essential oils or in the petrochemical, metalwork and automotive industries. Generally speaking, the determination of the refractive index helps to examine the purity of a substance quickly and reliably. In addition, the progress of reactions and substance conversions can be read via the refractive index.

Typical applications
 

Automation with refractometers

The DR6000-TF models with through-flow function, flow-through cell, drying unit DS7060, peristaltic pump DS7070 and autosampler AS80 or AS90 allow for semi- or fully automated operation.

more about automation
 

Our Campus

We share our experiences and expert knowledge: explore our campus and learn more about typical applications, standards and fields of applications, about sample behavior and functionality, about automation options, about calibration and adjustment, temperature control and temperature compensation. Embark on a journey of discovery with us.

Campus overview
 

Service

Our service is unbeatable

As a customer you are at the center of our service, and for your satisfaction we give our best every day. Quality is always our top priority. Whether commissioning, calibration, maintenance or repair: with our certified service and repair services, you can rely on the first-class expertise of our specialists.

Our certified services
 

Application Consulting

We will be 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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Product demonstration

You would like to get to know our devices better?
Would you like to know more about the operation or the precision of the measuring technology?
Are you unsure if the working environment is suitable for a precision instrument?
Or you want to test the acceptance in the working environment?
For you, we demonstrate our products on site, so that measuring methods and measuring instruments meet your specific wishes.

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Installation

During installation, we include your work environment and processes so that our devices can achieve the best measurement results. Our technical staff ensures that your internal and external quality standards are adhered to. We issue test reports and quality assurance documents and train your employees on our devices.

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Validation and Qualification in Laboratory Analytics

A.KRÜSS meet the enormous demand for qualification services with a comprehensive concept. We work together with you, our customers, hand in hand and offer comprehensive support throughout the entire qualification process.

more information
 

Calibration and adjustment

Calibration is becoming an increasingly important part of quality assurance in terms of meeting standards and regulations. Calibration is the indispensable and documented proof that a measuring instrument works reliably in the intended value range while maintaining specified tolerances under the current operating conditions.

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Maintenance and repairs

Maintenance and repair in the factory or at your site - through regular maintenance you increase the lifespan of your device while meeting the ever-increasing demands of quality assurance. We offer you a cost-effective maintenance check. Your device is professionally cleaned, centered, greased, adjusted and calibrated.

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Warranty extension

To extend your standard warranty to 3 years, we offer two variants: the purchase of the warranty extension or the extended warranty under a maintenance contract.

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Service and maintenance contracts

Annual inspection and maintenance of your equipment, including all functional and safety checks, cleaning of the most important components, calibration with certified traceable calibration standards and, if necessary, adjustment and detailed documentation

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Our customers

A.KRÜSS devices are used successfully by well-known companies worldwide.

 

Any Questions?

We will be glad to help.

A.KRÜSS Optronic GmbH
Alsterdorfer Str. 276-278
22297 Hamburg | Germany

Tel. +49 40 5143 17-0
Fax +49 40 5143 17-60

E-Mail info@kruess.com