Warnings and Maintenance of Your Optical Refractometer

Warning&Maintenance

    Accurate measurement depends on careful calibration. Follow the instructions above closely. A reminder: Differences between the ambient room temperature of the prism and the temperature of the sample will throw off the accuracy of your reading. Remember to allow the sample to rest on the prism assembly for 30 seconds before taking a reading.

    Do not expose the refractometer to damp working conditions. Do not immerse the instrument in water. If the instrument becomes foggy, water has entered the body. Call a qualified service technician or contact your dealer to purchase a new refractometer.

    Do not measure abrasive or corrosive chemicals with this instrument, because they can damage the prism's coating.

    Clean the instrument 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's coating.

    The refractometer is an optical instrument. It requires careful handling and storage. Failure to do so can result in damage to the optical components and its basic structure. With care, this instrument will provide years of reliable service.