Introduction
Portable refractometers are handheld, field-portable instruments used to measure the refractive index of a liquid and to determine related properties, such as the concentration of dissolved substances, and they are used for on-site measurement and quality control in the food and beverage, agricultural, chemical, and industrial fields. Portable refractometers operate on the critical angle principle: a small drop of the sample is placed on a measuring prism, light passes through the sample into the prism, and the angle of the refracted light depends on the refractive index of the sample; the instrument measures this angle and displays the result as a refractive index value or on a concentration scale, such as Brix for sugar content, and many models include automatic temperature compensation, since the refractive index changes with temperature. Portable refractometers are available in analog versions, with a scale viewed through an eyepiece, and digital versions, with an electronic sensor and digital display; they are compact, battery-powered, and designed for rugged field use. They are used in the food and beverage industry for measuring the sugar content of fruits, juices, soft drinks, and syrups; in agriculture for measuring the concentration of nutrient solutions, for checking the sugar content of grapes and other crops, and for quality assessment; in the automotive and industrial fields for measuring the concentration of coolants, battery fluids, and cleaning solutions; in the chemical industry for concentration checks; in aquaculture for salinity measurement; in the pharmaceutical industry; and in education, and they are used for quick on-site checks and process control. With their portability and ease of use, portable refractometers are essential instruments for rapid concentration measurement in the field.
Portable Brix Honey Refractometer LPBHR-T2010
Portable Brix Honey Refractometer has a measuring range of 0 to 90% Brix and a minimum division of 0.5% Brix, allowing for clear and precise readings of sugar concentration in liquids. C...
Portable Brix Refractometer LPBR-T2041
Portable Brix Refractometer measures Brix values from 0 to 95%, providing reliable and accurate results. It ensures ±0.3%/1°C accuracy, offering precise sugar content analysis for dive...
Portable Salinity Refractometer LPSR-T2012
Portable Salinity Refractometer measures 0 to 28% with ±0.2% accuracy for precise concentration determination. The temperature compensation range of 10 to 80°C allows it to perform con...
Portable Brix Refractometer LPBR-T2040
Portable Brix Refractometer provides high-precision measurement of Brix values from 0 to 55%. It offers 0.1 Brix resolution and an accuracy of ±0.2 Brix, ensuring accurate and reliable ...
Portable multi-purpose refractometer LPMP-T2010
Portable multi-purpose refractometer is a versatile pocket sized optical instrument that provides instant measurement readings. screen displays measurement data in one view. Ideal for me...
Portable Ethylene Glycol Refractometer LEGR-T2010
Portable ethylene glycol refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. Digital meter displays easy to read resu...
Portable Brix Refractometer LPBR-T2030
Portable brix refractometer is a versatile pocket sized optical instrument that provides instant measurement readings. Digital meter displays easy to read results. Automatic power off po...
Portable Brix Refractometer LPBR-T2020
Portable brix refractometer is a versatile pocket sized optical instrument that provides instant measurement readings. screen displays measurement data in one view. Equipped with standar...
Portable Brix Refractometer LPBR-T2011
Portable brix refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. Automatic temperature compensation () eliminates te...
Portable Brix Refractometer LPBR-T2012
Portable brix refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. Automatic temperature compensation () eliminates te...
Portable Brix Refractometer LPBR-T2010
Portable brix refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. Automatic temperature compensation () eliminates te...
Portable Coolant and Battery Refractometer LCBR-T2010
Portable coolant and battery refractometer is a versatile pocket sized optical instrument that provides instant measurement readings. screen displays measurement data in one view. Ideal ...
Portable Urea Refractometer LPUR-T2010
Portable urea refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. screen displays measurement data in one view. Autom...
Portable Salinity Refractometer LPSR-T2011
Portable salinity refractometer is a microprocessor controlled pocket sized optical instrument with three scales of measurement. Equipped with a standardized Brix scale for easy read and...
Portable Salinity Refractometer LPSR-T2010
Portable salinity refractometer is a microprocessor controlled pocket sized optical instrument with three scales of measurement. Equipped with a standardized Brix scale for easy read and...
Portable Protein Refractometer LPPR-T2010
Portable protein refractometer is a microprocessor controlled pocket sized optical instrument with three scales of measurement. Digital meter displays easy to read results. Automatic pow...
Portable Honey Refractometer LPHR-T2010
Portable honey refractometer is a versatile pocket sized optical instrument with three scales of measurement. screen displays measurement data in one view. Equipped with standardized Bri...
Portable Coffee Refractometer LCR-T2010
Portable coffee refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. prolonging it’s battery life. It is designed for...
Portable Brake Fluid Refractometer LBFR-T2010
Portable brake fluid refractometer is a microprocessor controlled pocket sized optical instrument that provides instant measurement readings. Digital meter displays easy to read results....
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. Portable refractometers for field measurement of refractive index and concentration.
2. Compact, handheld design with analog or digital display for on-site testing.
3. Suitable for agriculture, food, beverage, automotive, industrial and field applications.
4. Includes refractometer, calibration tool, pipette and operation manual.
5. Supports Brix, salinity, coolant, urine and other concentration measurements.
FAQ
Q1: What testing scenarios are these refractometers mainly applied to?
A: Portable refractometers are used in agriculture, food and beverage production, automotive maintenance, industrial quality control, clinical testing, marine aquarium and field applications to rapidly measure the refractive index or concentration of liquids including sugar content (Brix), salinity, coolant concentration, urine specific gravity and industrial fluid concentration. They support fruit and crop sweetness assessment in agriculture, juice and beverage sugar content testing, wine and beer fermentation monitoring, automotive coolant and battery fluid testing, industrial cutting fluid concentration, clinical urine specific gravity measurement, and marine aquarium salinity monitoring. The portable, handheld design enables immediate on-site measurement without laboratory equipment. They are essential for agriculture, food, beverage, automotive, industrial and clinical users requiring portable, rapid refractive index or concentration measurement for quality assessment, process monitoring, field testing, maintenance and routine analysis, where the handheld design provides convenient, immediate results for sugar content, salinity, coolant concentration, urine specific gravity and other measurements in agricultural, food, automotive, industrial and clinical field applications requiring simple, reliable, on-site testing capability.
Q2: What standards do these refractometers comply with?
A: Portable refractometers support methods referenced in ICUMSA for sugar, ISO 1743 for glucose syrup, ASTM standards for specific applications, and relevant GB/T standards. The instruments comply with relevant safety standards. Calibration should use distilled water or certified refractive index standards for routine verification. Specific scales (Brix, salinity, etc.) follow applicable measurement standards.
Q3: What is the warranty period for these instruments?
A: The whole portable refractometer is covered by a 12-month warranty. The optical prism, body and scale/display are covered, while calibration tools, pipettes and batteries are accessories or consumables. Damage from improper cleaning, dropping or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is very simple: place a few drops of sample on the prism and read the result (analog) or press measure (digital). No professional training is required, but users should follow proper sample application, calibration and cleaning procedures. We provide an operation manual and remote guidance.
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 distilled water should be performed periodically, typically before each use session for critical measurements. Prism condition and cleanliness verified regularly. For digital models, battery replacement when display dims. Full sensor calibration recommended annually for precision instruments.
Q7: Are supporting consumables universal?
A: Calibration tools, pipettes and batteries are available from general suppliers. Long-term consumable cost is very low for a portable refractometer.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes measurement scale (Brix, salinity, coolant, urine, etc.), precision level, type (analog or digital), language and accessories. Additional pipettes, calibration tools and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: No installation is required. The package includes the portable refractometer, calibration tool and instruction manual. On-site service is not included for this type of handheld instrument.
Q10: What types of samples are compatible with these instruments?
A: Portable refractometers measure refractive index or concentration of transparent liquids within the measurement range and scale specification. Opaque or highly colored samples may not be suitable for some analog models. Very viscous samples require proper spreading on the prism. Corrosive samples may damage the prism and require special handling. Users should ensure the prism is clean and dry before each measurement, apply sufficient sample to cover the prism, allow temperature equilibration or use automatic temperature compensation, calibrate regularly with distilled water, and clean the prism thoroughly after each use to prevent residue buildup. The appropriate scale should be selected for the specific application (Brix for sugar, salinity for salt, etc.), and results should be reported with the scale and temperature specified for accurate comparison.
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