A.KRÜSS Optronic Digital Abbe Refractometer AR2008
The modern classic!
The Abbe refractometer was developed in 1869 by Ernst Abbe and is used to determine the refractive index otherwise known as the index of refraction. It is based on the principle of total reflection which occurs at the boundary between the prism and the sample. The refractive index of the prism determines the upper limit of the measurement range, as it always has to be greater than that of the sample. With the AR Series, Krüss has two models of the Abbe refractometer in its range. These are easy to use and require only a small sample volume. These devices allow samples in the form of solids or pastes to be measured just as easily as liquids. Furthermore, colouration or clouding scarcely affect the measurement result. Besides the refractive index, the solid content can be determined in %Brix. To determine the refractive index of solids, a contact liquid with an average refractive index is required. The refractive index of a sample is dependent on the wavelength of the light used for the measurement and on the temperature. As the temperature increases, the refractive index drops. That is why our Abbe refractometers have thermostat connections on both the illumination prism as well as the measurement prism.
The digital Abbe refractometer AR2008 has an electronic data processing system. The refractive index or Brix value is shown on an LCD display together with the temperature. A serial interface allows measured values with date and time to be transferred directly to the PC or printer. An automatic temperature compensation feature is optionally selectable. The AR2008 has a thermostat connection for prisms and a built-in light source (589 nm) for the measuring prism. The AR2008 is extremely sturdy and is ideally suited for use in a harsh environment. It is supplied with a glass calibration plate, contact fluid and a screwdriver as well as a dust hood.
Fields of application
Determination of mixing ratios, quality and quantity inspection in the following industries:
- Beverages
- Food
- Sugar / sweeteners
- Chemicals
- Flavours
- Petrochemicals
- Cosmetics / hygiene
- Metalworking
- Pharmaceuticals
- Water / effluent
- Education / research
Shipment
Benefit from reliable delivery options
Every day, we ship our laboratory equipment throughout Nigeria and internationally. We work with trusted and experienced logistics and courier partners to ensure safe and timely delivery. Shipping costs and delivery times depend on the items ordered and the recipient’s location. Alternatively, you may arrange to collect your order in person by appointment. Below is an overview of our shipping options and policies.
Shipping within Nigeria
All goods are insured as standard up to a value of ₦ equivalent of €25,000. Shipping costs are calculated based on the weight, dimensions, value of the shipment, and delivery destination within Nigeria. For detailed shipping information, please contact us directly—we will be happy to assist.
International shipping
For accurate international shipping costs, we require details of the specific product(s) you wish to order.
Please contact us by telephone or email for a tailored quotation.
Freight forwarding, sea or air freight
For large, heavy, or specialized equipment, we provide personalised quotations for road freight, sea freight, or air freight. Taking current logistics conditions into account, we aim to offer the best possible price-to-performance ratio.
Incoterms 2020
All shipments are handled in accordance with Incoterms® 2020 (ICC). Please contact us to confirm and agree on your preferred delivery terms.
Self-collection
If required, you may collect your goods in person by prior appointment. Please note that pricing and availability may vary between Nigeria and other countries.
Standard deliveries
Standard shipments within Nigeria are handled by reputable courier and logistics providers. Upon request, we can also arrange alternative carriers to meet specific delivery requirements.
Insurance
All deliveries are insured up to a maximum value of ₦ equivalent of €25,000. If the value of your goods exceeds this amount, we will contact you to arrange additional insurance coverage.
Delivery time
Delivery times depend on product availability and order volume. High-demand items may be subject to delays beyond our control. If you require urgent delivery, please inform us in advance, and we will do our best to accommodate your request.
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