Refractometer composition structure and test components
The structure of the refractometer
1. Light inlet plate
2. Refractive prism
3. Zero correction screw
4. Eyepiece
5. Rubber sleeve 2. How to use
1) When using the hand-held refractometer, hold the rubber sleeve with four fingers of the left hand, and adjust the mirror with the right hand to prevent the body temperature from entering the instrument and affect the measurement accuracy.
2) Open the light inlet plate and wipe the refraction prism clean with a soft flannel.
3) Put a few drops of distilled water on the refracting prism, gently close the light inlet plate, so that the solution is evenly distributed on the surface of the prism, and aim the instrument light inlet plate at the light source or bright place, and observe the field of view through the eyepiece. If the dividing line between light and dark in the field of view is not clear, rotate the eyepiece to make the field of view clear, and then rotate the zeroing screw to make the dividing line between light and dark at the zero position. Then wipe the distilled water and replace it with the test solution. At this time, depending on the location, the dividing line is considered, and the corresponding reticle scale value is the concentration value and density value of the tested solution. 4. Precautions This instrument is a precision optical instrument. In the use and maintenance, the following matters should be paid attention to: 1. In use, you must be careful and use it strictly according to the instructions. Violent vibration is strictly prohibited. 2. After use, it is strictly forbidden to directly put it into water for cleaning. Use a clean and soft flannel to wipe it clean with water. The surface of optical parts should not be bumped or scratched. 3. The instrument should be stored in a dry, dust-free, oil-free and acid-free place to avoid corrosion or mildew on optical parts.
Refractometer test components
The salinometer-refractometer has different refractive indices according to different concentrations of liquids. It is designed based on this principle and is an instrument for testing liquids with light. The salinometer is used to quickly measure the weight of salt (sodium chloride) solutions. Percent concentration or refractive index. It is widely used in salt, food, beverage and other industrial sectors, as well as in agricultural production and scientific research. Seawater salinometers are scaled in parts per thousand. With a simple operation, the user can quickly read the salt concentration or the specific gravity of seawater. It can be applied to the concentration management of seawater, fish farms, seawater used in aquaculture, seawater or artificial seawater used in aquariums, and saltwater used in fish storage. or refractive index. Widely used in sugar, food, beverage and other industrial sectors as well as agricultural production and scientific research. It is suitable for the concentration measurement of various sauce (seasoning) products such as soy sauce and ketchup. It is suitable for the measurement of sugar content of products with high sugar content such as jam, syrup and liquid sugar. It is suitable for the production line of fruit juice, soft drinks and carbonated drinks. , quality management, pre-delivery inspection, etc., suitable for the process of fruit from planting to sales, it can be used to determine the accurate harvesting period, for sweetness classification... In addition, in the textile industry pulp concentration determination It is also widely used. The medical refractometer can accurately and quickly measure the concentration level of human and animal physiological fluids. Three sets of scales are used to measure urine specific gravity, serum protein and refractive index. The product is simple in structure, easy to operate and carry, and has a clear vision. It is an indispensable testing equipment for hospitals, scientific research institutions and veterinary industries.
