Introduction
A benchtop refractometer is a laboratory instrument designed to sit on a bench, used to measure the refractive index of liquids and, in some models, solids, providing precise data on the concentration, purity, and composition of samples for quality control and research. The instrument operates on the critical angle principle, in which a beam of light passes through a prism in contact with the sample; the angle at which the light is refracted depends on the refractive index of the sample, and the instrument measures this angle with an optical system and converts it into a refractive index value or a related concentration scale, such as Brix for sugar solutions. Benchtop refractometers provide high accuracy and repeatability, and many models include temperature control to ensure that measurements are made at a defined temperature, since the refractive index of a liquid changes with temperature. They are widely used in the food and beverage industry to measure the sugar content and concentration of juices, soft drinks, syrups, sauces, and dairy products; in the pharmaceutical and chemical industries to verify the concentration and purity of solutions and raw materials; in the petroleum industry to check the concentration of coolants, cutting fluids, and lubricants; and in clinical laboratories for measuring protein and specific gravity in biological fluids. Benchtop refractometers are available in analog and digital versions, with features such as digital displays, automatic temperature compensation, data storage, and calibration functions. With their accuracy, reliability, and versatility, benchtop refractometers are essential instruments for concentration and purity measurement in laboratories and production environments.
Benchtop refractometer LBR-T2013
Benchtop refractometer can measure a wide range of refractive indices from 1.3000 nD to 1.7000 nD. It offers a Brix range of 0.0 to 100 % with an accuracy of ± 0.01 %. This system is fu...
Benchtop Refractometer LBR-T2012
Benchtop refractometer is an automated unit with high performance linear photosensitive components. Adopts high precision signal collection and analysis technology. Equipped with a sapph...
Benchtop Refractometer LBR-T2010
Benchtop Refractometer provides a refractive index measurement range of 1.3000 to 1.7000 (nD), supporting accurate analysis of a wide variety of samples. Efficiently measures parameters ...
Benchtop Refractometer LBR-T2011
Benchtop refractometer is an automated unit with high performance linear photosensitive components. Adopts high precision signal collection and analysis technology. Equipped with a sapph...
Standards
ISO 2173:2003-Fruit and vegetable products-Determination of soluble solids content-Refractometric method
Complies with the above standards, but is not limited to them.
Features
1. Benchtop refractometer for high-precision refractive index measurement.
2. Digital or optical measurement with temperature control for accurate results.
3. Suitable for pharmaceutical, chemical, food, beverage and research laboratories.
4. Wide measurement range with high resolution for precise concentration determination.
5. Includes prism assembly, temperature control, display and calibration standards.
FAQ
Q1: What testing scenarios is this refractometer mainly applied to?
A: The benchtop refractometer is used in pharmaceutical quality control, chemical analysis, food and beverage testing, fragrance and flavor production, and research laboratories to perform high-precision refractive index measurement of liquids for concentration determination, purity assessment and quality control. It supports pharmaceutical solution concentration verification, chemical product purity testing, sugar and soluble solids measurement in food and beverages, fragrance and flavor compound analysis, and research requiring precise refractive index data. The benchtop design with temperature control provides higher accuracy and stability than handheld models, suitable for laboratory analysis and regulatory compliance. It is essential for pharmaceutical, chemical, food and research laboratories requiring precise refractive index measurement for product quality, concentration determination, purity assessment and regulatory compliance, where accurate refractive index data is critical for product specification, quality control, material identification and research in pharmaceutical, chemical, food and fragrance industries.
Q2: What standards does the refractometer comply with?
A: The benchtop refractometer supports methods referenced in USP, EP and ChP for refractive index, ISO 1743 for glucose syrup, ASTM standards, and relevant GB/T standards. The instrument complies with IEC 61010 laboratory safety standards. Calibration should use certified refractive index standards traceable to international standards.
Q3: What is the warranty period for the whole machine and key components?
A: The whole refractometer is covered by a 12-month warranty. The optical system, temperature control and display are covered, while calibration standards and bulbs are consumables or accessories. Damage from improper cleaning or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires basic training in refractometry, sample application and calibration. We provide an operation manual and remote guidance. Proper sample application, temperature control, calibration and result reading are important for accurate refractive index measurement.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified refractive index standards recommended every 6-12 months. Routine verification with distilled water before each use session. Temperature calibration verified periodically. Prism condition and cleanliness checked regularly.
Q7: Are supporting consumables universal?
A: Calibration standards and bulbs are available from specialized suppliers, though compatibility should be verified. Long-term consumable cost is low for a benchtop instrument.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes measurement range, precision level, temperature control, display type and data output. Additional standards and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the refractometer and accessories with an operation manual. On-site installation, calibration and training are not included for standard orders but can be arranged for laboratory setup projects. Remote guidance is provided.
Q10: What types of samples are compatible with this equipment?
A: The benchtop refractometer measures refractive index of transparent liquids within the measurement range and temperature specification. Opaque or highly colored samples may not be suitable. Very volatile samples require rapid measurement. Corrosive samples may damage the prism. Users should ensure the prism is clean, apply sufficient sample, allow temperature equilibration, calibrate with certified standards, and clean the prism thoroughly after each use to maintain measurement accuracy and prevent cross-contamination between samples.
Tips: For more details, quotes and customized solutions, please contact us anytime. We’re always ready to serve you professionally.