Fusion of refractive index and angle of optical rotation
- Making the invisible, visible -
Technical Specifications
A fusion of index of refraction and angle of optical rotation making the invisible,visible. Brix can only indicate the overall amount of dissolved solids in a solution. With REPO-1, it is possible to determine if a product has been adulterated by measuring the optical rotation. Announcing an All-in-One, refractometer and polarimeter hybrid unit. As little as 3mL sample, Repo-1 can measure both brix and optical rotation of the sample. With the press of a button, purity, international sugar scale, specific rotation, and concentration can be displayed. Users can also set an upper and lower measurement limit. An indicator light alerts the user if a measurement value is within the limits, allowing for optimal efficiency.“Could a Repo-1 be used in our field?” “How about for my unique application?”We look forward to hearing from you! |
Like the RePo-1, the RePo-2 is a two-in-one refractometer and polarimeter hybrid.In addition to angle of rotation and Brix, the RePo-2 also converts and displays the amount of fructose (%) within HFCS. The RePo-2 is ideal for various industries such as food and beverage, or sugar refining. |
In addition to angle of rotation and Brix, the RePo-3 also converts and displays the amount of invert sugar (%) derived from sucrose. The RePo-3 is ideal for various industries such as sugar refining. |
In addition to angle of rotation and Brix, the RePo-4 also converts and displays the amount of fructose (%) and honey moisture (%). The RePo-4 is ideal for total quality control of honey. | In addition to angle of rotation and Brix, the RePo-5 can also display the refractive index (nD) of a sample. The RePo-5 is ideal for quality control in various industries such as fragrances, cosmetics, or pharmaceutical.RePo-5 satisfies Pharmacopoeia standards. | |
Model | RePo-1 | RePo-2 | Repo-3 | Repo-4 | Repo-4=5 |
Cat.No. | 5010 | 5012 | 5013 | 5014 | 5015 |
Measurement Readings |
Angle of Rotation International Sugar Scale Purity Specific Rotation Concentration Brix Temperature |
Angle of Rotation Brix Fructose % at HFCS Temperature |
Angle of Rotation Brix Invert Ratio % at Inverted Sugar
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Angle of Rotation Brix Temperature Fructose% of honey Honey Moisture % |
Angle of Rotation Brix Refractive Index Temperature |
Range | Angle of Rotation:-5.00 -5.00° *Convertible to -25.00°to +25.00°with a 100mm observation tube *Convertible to -50.00° to +50.00°with a 200mm observation tube International Sugar Scale: -130 to +130°Z Brix: 0 to 85% Temperature: 15.0 to 40.0℃ |
Angle of Rotation:-5.00 to +5.00° *Convertible to -25.00°to +25.00°with a 100mm observation tube *Convertible to -50.00° to +50.00°with a 200mm observation tube Brix : 0.0 to 85.0% Fructose % : 0.0 to 99.9% Temperature: 15 to 40℃ |
Angle of Rotation:-5.00 to +5.00°(*) *Convertible to -25.00°to +25.00°with a 100mm observation tube *Convertible to -50.00° to +50.00°with a 200mm observation tube Brix:0.0 to 85.0% Invert ratio% of sucrose:0.0 to 99.9% Temperature: 15.0 to 40.0℃ |
Angle of Rotation:-5.00 to +5.00°(*) *Convertible to -25.00°to +25.00°with a 100mm observation tube *Convertible to -50.00° to +50.00°with a 200mm observation tube Brix: 0.0 to 85.0% Fructose % : 0.0 to 99.9% Honey Moisture % : 13.0 to 30.0% Temperature : 15.0 to 40.0℃ |
Angle of Rotation:-5.00 to +5.00° *Convertible to -25.00°to +25.00°with a 100mm observation tube *Convertible to -50.00° to +50.00°with a 200mm observation tube Brix: 0.0 to 85.0% Refractive index:1.3306~1.5050 Temperature: 15.0 to 40.0℃ |
Resolution | Angle of Rotation: 0.01° Brix: 0.1% International Sugar Scale: 0.1°Z Temperature: 0.1°C |
Angle of Rotation : 0.01° Brix : 0.1% Fructose : 0.1% Temperature : 0.1℃ |
Angle of Rotation : 0.01° Brix : 0.1% Invert ratio : 0.1% Temperature : 0.1℃ |
Angle of Rotation : 0.01° Brix : 0.1% Fructose % : 0.1% Honey Moisture % : 0.1% Temperature : 0.1℃ |
Angle of Rotation : 0.01° Brix : 0.1% Refractive index : 0.0001 Temperature : 0.1℃ |
Accuracy | Angle of Rotation: ±0.1°(20℃) International Sugar Scale:3°Z, Brix: ±0.2% Temperature: ±1℃ |
Angle of Rotation: +-0.1°(20℃) Brix :+-0.2% Temperature: +-1℃ |
Angle of Rotation : ±0.1° (20℃) Brix : ±0.2% Temperature : ±1℃ |
Angle of Rotation : ±0.1° (at 20℃) Brix : ±0.2% Honey Moisture % : ±0.2% Temperature : ±1℃ |
Angle of Rotation: ±0.1° (20℃) Brix:±0.2% Refractive index:±0.0002 (20℃) Temperature: ±1℃ |
Temperature compensation | Brix: 15 to 40℃, Purity: 18 to 40℃, International Sugar Scale: 18 to 40℃ |
Brix:15 to 40℃ | Brix : 15 to 40℃ | Brix :15 to 40℃ Honey Moisture % : 15 to 40℃ |
Brix : 15 to 40℃ |
Sample Volume | 3ml | 3ml | 3ml | 3ml | 3ml |
Measurement Wavelength | 589nm (equivalent to the sodium-D line spectrum) |
589nm (equivalent to the sodium-D line spectrum) |
589nm (equivalent to the sodium-D line spectrum) |
589nm (equivalent to the sodium-D line spectrum) |
589nm (equivalent to the sodium-D line spectrum) |
Light source | LED | LED | LED | LED | LED |
Measurement Time | 12 seconds | 12 seconds | 12 seconds | 12 seconds | 12 seconds |
Power Supply | Size AAA alkaline battery x 4 | Size AAA alkaline battery x 4 | Size AAA alkaline battery x 4 | Size AAA alkaline battery x 4 | Size AAA alkaline battery x 4 |
International Protection Class | IP67 | IP67 | IP67 | IP67 | IP67 |
Dimensions and Weight | 101×160×38mm, 325g (Main unit only |
101×160×38mm, 325g (Main unit only |
101×160×38mm, 325g (Main unit only |
101×160×38mm, 325g (Main unit only |
101×160×38mm, 325g (Main unit only |
RePo Series Four Points
2 in 1 Brix alone can only indicate the overall amount of dissolved solids in a solution. With REPO-1, it is possible to determine if a product has been adulterated by measuring the optical rotation. For example, fructose rotates light to the left while glucose rotates light to the right. If a sample has been adulterated with glucose, it will make the optical rotation readings appear more positive than a pure solution |
Compact Size
Great portability, 10.1×16.0×3.8cm and weighs only 325g |
Automatically Calculated Scales Press "User" to select the desired scale: Purity, International Sugar Scale, Specific Rotation, and Concentration |
Measurement Evaluation Indicator
Measurements are evaluated against pre-set tolerancelimits, and the result is indicated by green or red light. |
RePo series Features
Repo Series Measuring Method
![]() Fill the sample stage up to the fill line (approx. 3mL). |
Press START |
Measurement is displayed |
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ManufacturerAtago Co Ltd
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Country of OriginJapan
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Measurement ReadingsAngle of Rotation, Brix, Purity, International Sugar Scale, Specific Rotation, Fructose (%) in HFCS, Invert Sugar (%) converted from Sucrose., Fructose (%) and Honey Moisture (%)., Refractive Index(nD)
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Measurement RangeISS : -130 to +130°Z, Fructose % : 0.0 to 99.9%, Invert Ratio % : 0.0 to 99.9%, Fructose % : 0.0 to 99.9% and Honey Moisture % : 13.0 to 30.0%, Refractive Index : 1.3306 to 1.5050
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ModelRePo-1, RePo-2, RePo-3, RePo-4, RePo-5