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Refractometer is a precision optical instrument that specifically measure the concentration of the solution, easy to use. ATC is added with a temperature compensation system. Portable refractometer is by direct reading the scale for measuring the concentration of various solutions specially designed, such as: fruit juice, soft drinks, honey, salt, water, cleaning fluid, battery fluid, and industrial antifreeze solution and the like. At the same time, easier to use.
Measurement Principle:
Based on the ratio of the refractive index of the amount of sugar in sugar-containing solutions and design principles of concentration refractometer it can be used for direct determination of the sugar content of sugar solution. As long as the detection prism mirror Add 2-3 drops of test solution can be. Sugar refractometer for rapid determination of solubility, density wine sugary solution; you can also measure the refractive index of other non-sugar solubility or by conversion, is sugar, food, beverage, wine, agricultural research, textile and mining machinery, etc. of the necessary instrumentation. Product looks beautiful, precision, durability, the full range, affordable.
Refraction theory of refraction meter
If you place a pencil in a glass of water, the top will appear curved. Then the top if you put sugar in a cup and try the same experiment, the pencil should appear even more bent, and an example of this phenomenon is the refractive index.
Refractometer result of new optical systems into a practical use. The test solution is measured by converting the corresponding relationship between the refractive index of the solution to its solubility solubility when increasing the density of the material (for example, when the sugar in water solubility when dissolved substance increases), its refractive index increases proportionately primers.
1. refractometer prism hold a higher refractive index than the sample solution theory; test solution to measure the refractive index of solubility or through conversion.
2. In the case of weak test solution, the test solution is higher refractive index than the prism, so the angle of refraction is relatively large (see A. In the following chart).
3. In the case of relatively strong test solution, the test solution is lower than the refractive index of the prism, so the angle of refraction is relatively small (see chart below at B.).


 
Hand Held Refractometer - Brix
    The RHB series is developed for working with sugar related liquids (fruit juices, soft drinks, wine), help monitor and control sugar concentrations in foods and beverages. Whether users are checking the "ripeness" of fruit in the field, verifying product quality after harvesting, or controlling concentrations during processing and packaging, refractometers provide critical information to ensure product quality. But, is also commonly used for controlling the concentration of various industrial fluids cutting lubricants and flux rinsing compounds. Full ranges of measurement is available.

Model	Range	Resolution	Accuracy	Remark
RHB-10	Brix:  0-10%	Brix:  0.1%	Brix:  ±0.10%	Without Atc
RHB-10ATC	Brix:  0-10%	Brix:  0.1%	Brix:  ±0.10%	Atc
RHB-20	Brix:  0-20%	Brix:  0.1%	Brix:  ±0.10%	Without Atc
RHB-20ATC	Brix:  0-20%	Brix:  0.1%	Brix:  ±0.10%	Atc
RHB-32	Brix:  0-32%	Brix:  0.2%	Brix:  ±0.20%	Without Atc
RHB-32ATC	Brix:  0-32%	Brix:  0.2%	Brix:  ±0.20%	Atc
RHB-55	Brix:  0-55%	Brix:  1%	Brix:  ±1%	Without Atc
RHB-92	Brix:  58-92%	Brix:  0.2%	Brix:  ±0.2%	Without Atc
RHB-62	Brix:  28-62%	Brix:  0.2%	Brix:  ±0.20%	Without Atc
RHB-62ATC	Brix:  28-62%	Brix:  0.2%	Brix:  ±0.20%	ATC
RHB-82	Brix:  45-82%	Brix:  0.5%	Brix:  ±0.5%	Without Atc
RHB-82ATC	Brix:  45-82%	Brix:  0.5%	Brix:  ±0.5%	Atc
RHB-90	Brix: 58-90% Baume: 38-43Be' water: 12-27%	Brix: 0.5% Baume: 0.5Be' water: 1%	Brix: ±0.5% Baume: ±0.5Be' water: ±1%	Without Atc
RHB-90ATC	Brix: 58-90% Baume: 38-43Be' water: 12-27%	Brix: 0.5% Baume: 0.5Be' water: 1%	Brix: ±0.5% Baume: ±0.5Be' water: ±1%	Atc
RHB0-80	Brix:  0-80%	Brix:  1%	Brix:  ±1%	Without Atc

Hand Held Refractometer - Salinity
    The RHS series are designed for testing the concentration of salt water and brine. Provides a direct reading of the specific gravity and concentration (Parts Per Thousand) of salt in water. It provides reliable refractive index and salinity readings of total dissolved solids of aqueous solutions. It is used for quality control in research and clinical laboratories. It can be used to check and maintain stock solutions and dilutions. In the food industry, it is especially effective in the preparation of frozen vegetables, fruits, seafood and ocean by products. The Salinity Refractometer is also used in oceanography and seawater studies for determining soil quality. The model having ATC (Automatic Temperature Compensation) is ideal for field use.

Model	Range	Resolution	Accuracy	Remark
RHS-10	Salinity: 0-100‰ Specific gravity: 1.000-1.070	Salinity: 1‰ Specific gravity: 0.001	Salinity: ±1‰ Specific gravity: ±0.001	Without Atc
RHS-10ATC	Salinity: 0-100‰ Specific gravity: 1.000-1.070	Salinity: 1‰ Specific gravity: 0.001	Salinity: ±1‰ Specific gravity: ±0.001	Atc
RHS-28	Salinity:  0-28%	Salinity:  0.2%	Salinity:  ±0.2%	Without Atc
RHS-28ATC	Salinity:  0-28%	Salinity:  0.2%	Salinity:  ±0.2%	Atc
RHS-10a	Salinity: 0-100‰ Brix:  0-10% Specific gravity: 1.000-1.070	Salinity: 1‰ Brix:  0.2% Specific gravity: 0.001	Salinity: ±1‰ Brix:  ±0.2% Specific gravity: ±0.001	Without Atc
RHS-10b	Salinity: 0-100‰ Brix:  0-10% Specific gravity: 1.000-1.070	Salinity: 1‰ Brix:  0.2% Specific gravity: 0.002	Salinity: ±1‰ Brix:  ±0.2% Specific gravity: ±0.002	Without Atc
RHS-28a	Salinity: 0-28% Brix:  0-32%	Salinity: 0.2% Brix:  0.2%	Salinity: ±0.2% Brix:  ±0.2%	Without Atc

Hand Held Refractometer - Clinical Protein
     The RHC series are designed for clinical usage and intended for both Veterinary and Human Being. This unit provides veterinarians and Human Being with quick and accurate indication of vital fluids' levels. Its triple scale reads Total Serum Protein, Refractive Index and Urine Specific Gravity.

Model	Range	Resolution	Accuracy	Remark
RHC-200	Serum Protein:  0-12g/dl Specific Gravity: 1.000-1.050sg Refractive Index: 1.330RI-1.360RI	Serum Protein: 0.2g/dl Specific Gravity: 0.005sg Refractive Index: 0.0005RI	Serum Protein: ±0.2g/dl Specific Gravity: ±0.005sg Refractive Index: ±0.0005RI	Without Atc
RHC-200ATC	Serum Protein:  0-12g/dl Specific Gravity: 1.000-1.050sg Refractive Index: 1.330RI-1.360RI	Serum Protein: 0.2g/dl Specific Gravity: 0.005sg Refractive Index: 0.0005RI	Serum Protein: ±0.2g/dl Specific Gravity: ±0.005sg Refractive Index: ±0.0005RI	Atc

Hand Held Refractometer - Battery/Antifreeze/Cleaning Fluid
    The RHA series are designed for measuring the concentration of the battery fluids. the freezing point of antifreeze liquid and windshield cleaning fluid. With the indication of the percentage you may know at which temperature the fluid will be frozen for both propylene glycol and ethylene glycol. It can also be used for checking the strength of electrolyte solution battery.

Model	Range	Resolution	Accuracy	Remark
RHA-100	Ethylene Glycol:  -84° F- 32° F Propylene Glycol: -60° F- 32°  F Battery:  1.100-1.400sg	Ethylene Glycol:  5° F Propylene Glycol:  5° F Battery:  0.01sg	Ethylene Glycol:  ±5° F Propylene Glycol:  ±5° F Battery:  ±0.01sg	Without Atc
RHA-100ATC	Ethylene Glycol:  -84° F-32° F Propylene Glycol: -60° F-32°  F Battery:  1.100-1.400sg	Ethylene Glycol:  5° F Propylene Glycol: 5° F Battery:  0.01sg	Ethylene Glycol:  ±5° F Propylene Glycol:  ±5° F Battery:  ±0.01sg	ATC
RHA-200	Ethylene Glycol: -60°C-0°C Propylene Glycol: -50°C-0°C Battery: 1.100-1.400sg	Ethylene Glycol: 5°C Propylene Glycol:  5°C Battery:  0.01sg	Ethylene Glycol:  ±5°C Propylene Glycol:  ±5°C Battery:  ±0.01sg	Without Atc
RHA-200ATC	Ethylene Glycol: -60°C-0°C Propylene Glycol: -50°C-0°C Battery:  1.100-1.400sg	Ethylene Glycol: 5°C Propylene Glycol: 5°C Battery: 0.01sg	Ethylene Glycol: ±5°C Propylene Glycol: ±5°C Battery: ±0.01sg	ATC
RHA-300F	Ethylene Glycol: -60°F-32°F Propylene Glycol: -50°F-32°F Battery:  1.15-1.30sg	Ethylene Glycol:  10°F Propylene Glycol:  10°F Battery:  0.01sg	Ethylene Glycol:  ±10°F Propylene Glycol:  ±10°F Battery:  ±0.01sg	Without Atc
RHA-303	Ethylene Glycol: -70°C-0°C Propylene Glycol: -60°C-0°C Battery: 1.10-1.40sg	Ethylene Glycol: 5°C Propylene Glycol:  5°C Battery:  0.01sg	Ethylene Glycol:  ±5°C Propylene Glycol:  ±5°C Battery:  ±0.01sg	Without Atc
RHA-403C	Ethylene Glycol:  -50°C-0°C Propylene Glycol:  -50°C-0°C Battery:  1.15-1.30sg Cleaner:  -40°C-0°C	Ethylene Glycol:  5°C Propylene Glycol:  5°C Battery:  0.01sg Cleaner:  5°C	Ethylene Glycol:  ±5°C Propylene Glycol:  ±5°C Battery:  ±0.01sg Cleaner:  ±5°C	Without Atc
RHA-503C	Battery:  1.100-1.400sg Ethylene Glycol:  -50°C-0°C Propylene Glycol:  -50°C-0°C Cleaner:  -40°C-0°C	Battery:  0.01sg Ethylene Glycol: 5°C Propylene Glycol:  5°C Cleaner:  5°C	Battery:  ±0.01sg Ethylene Glycol:  ±5°C Propylene Glycol:  ±5°C Cleaner:  ±5°C	Without Atc
RHA-501	Battery: 1.10sg-1.40sg Ethylene Glycol: -60°F-32°F Ethylene Glycol: -50°C-0°C Propylene Glycol: -50°C-0°C Propylene Glycol: -50°F-32°F	Battery:  0.01sg Ethylene Glycol:  10°F Ethylene Glycol:  5°C Propylene Glycol:  5°C Propylene Glycol:  10°F	Battery:  ±0.01sg Ethylene Glycol:  ±10°F Ethylene Glycol:  ±5°C Propylene Glycol:  ±5°C Propylene Glycol:  ±10°F	Without Atc

Hand Held Refractometer - Alcohol,Wine
    The RHW series are developed for working with alcohol or sugar related wines and concentration of alcohol. It can measure the alcohol concentration in wines or water solution. And it also is developed for measuring the sugar in the grapes, that helps the manufacturer to decide the best time to manufacture the grape wine.

Model	Range	Resolution	Accuracy	Remark
RHW-80	w/w: 0-80%	w/w: 1%	w/w: ±1%	Without ATC
RHW-25	alcohol:  0-25%	alcohol:  0.2%	alcohol:  ±0.20%	Without Atc
RHW-25a	alcohol:  0-25% Baume:    0-20	alcohol:  0.2% Baume:    0.2	alcohol:  ±0.2% Baume:    ±0.2	Without Atc
RHW-25a ATC	alcohol:  0-25% Baume:    0-20	alcohol:  0.2% Baume:    0.2	alcohol:  ±0.2% Baume:    ±0.2	Atc
RHW-25ATC	alcohol:  0-25%	alcohol:  0.2%	alcohol:  ±0.20%	Atc
RHW-25b	alcohol:  0-25% Brix:     0-40%	alcohol:  0.2% Brix:     0.2%	alcohol:  ±0.2% Brix:     ±0.2%	Without Atc
RHW-25bATC	alcohol:  0-25% Brix:     0-40%	alcohol:  0.2% Brix:     0.2%	alcohol:  ±0.2% Brix:     ±0.2%	ATC

Hand Held Refractometer - °OE Tester
    The °OE Testers are ideal for concentrated fruit juice and canned foods that use a sugar infusion.It has three scales: Oechsle(Oe°), Brix(%Sucrose) and KMW

Model	Range	Resolution	Accuracy	Remark
RHBS-32	Brix: 0-32% Oechsle: 0-140°Oe KMW: 0-25°Babo	Brix: 0.2% Oechsle: 1.0°Oe KMW: 0.2°	Brix: ±0.2% Oechsle: ±1.0°Oe KMW: ±0.2°	Without ATC
RHBS-32a	Brix: 0-32% Oechsle: 30-140°Oe	Brix: 0.2% Oechsle: 1.0°Oe	Brix: ±0.2% Oechsle: ±1.0°Oe	Without ATC
RHBS-32aATC	Brix: 0-32% Oechsle: 30-140°Oe	Brix: 0.2% Oechsle: 1.0°Oe	Brix: ±0.2% Oechsle: ±1.0°Oe	ATC
RHBS-32ATC	Brix: 0-32% Oechsle: 0-140°Oe KMW: 0-25°Babo	Brix: 0.2% Oechsle: 1.0°Oe KMW: 0.2°	Brix: ±0.2% Oechsle: ±1.0°Oe KMW: ±0.2°	ATC
RHBS-44	Brix: 0-44% Oechsle: 0-190°Oe KMW: 0-40°Babo	Brix: 0.5% Oechsle: 2.0°Oe KMW: 0.5°	Brix: ±0.5% Oechsle: ±2.0°Oe KMW: ±0.5°	Without Atc