Specification

Product Features

• High accuracy, with automatic temperature compensation, adopt high-quality temperature compensation sheet to avoid influence of temperature on measurement results.
• Refractometer body is made of aluminium alloy, durable, resistant to corrosion and dirt.
• Precision optical prism display, high uniformity, no crack, good transparency, high dispersion, small temperature coefficient, not affected by humidity.
• Telescopic observation eyepiece has adjustable focal length, long service life, clear scale display and more accurate reading.

Alcohol/Brix Refractometer Structure Diagram

Alcohol/Brix Refractometer Calibration Steps

1. Open daylight plate, and place 2-3 drops of distilled water on the main prism. Close the daylight plate so the water spreads across the entire surface of the prism without air bubbles or dry spots. Allow the sample to temperature adjust on the prism for approximately 30 seconds before going to step #2. (This allows the sample to adjust to the ambient temperature of the refractometer)
2. Hold daylight plate in the direction of a light source and look into the eyepiece. You will see a circular field with graduations down the center (you may have to focus the eyepiece to see the graduations clearly). The upper portion of the field should be blue, while the lower portion should be white.
3. Look into the eyepiece and turn the Calibration Screw until the boundary between the upper blue field and the lower white field meet exactly on the zero scale, such as shown in the image. That is the end of the calibration process. Make sure the ambient room temperature is correct for the solution you are using (20℃/68℉).When working temperature of the room or environment (not the sample) changes by more than5℉, we recommend recalibrating to maintain accuracy. If the instrument is equipped with Automatic Temperature Compensation system, the ambient working temperature of the room must be 20℃ (68℉) whenever the instrument is recalibrated. Once calibrated, shifts in ambient temperature within the acceptable range (10℃~30℃ ) should not effect accuracy.
   (Note: The pictures shown in steps are only as reference.)

Alcohol/Brix Refractometer Use Steps

1. Place a few drops of the sample to be tested onto the main prism, close the daylight plate and check reading.
2. Take the reading where the boundary line of blue and white cross the graduated scale.
3. The scale will provide a direct reading of the concentration.

Tips: Alcohol/Brix Refractometer Maintenance

1. Accurate measurement depends on careful calibration. The prism and sample must be at the same temperature for accurate results.
2. Do not expose the refractometer to damp working conditions, and do not immerse the refractometer in water. If the refractometer becomes foggy, water has entered the body. Call a qualified service technician to solve it.
3. Do not measure abrasive or corrosive chemicals with refractometer. They can damage the prism coating.
4. Clean the refractometer between each measurement using a soft, damp cloth. Failure to clean the prism on a regular basis will lead to inaccurate results and damage to the prism coating.
5. Refractometer is an optical meter, It requires careful handling and storage. Failure to do so can result in damage to the optical components and its basic structure. With care, refractometer will provide years of reliable service.