1. Open the cover 2. Wipe the prism carefully with a soft cloth 3. Take a few drops of the solution to be measured and place them on the detection prism. Gently close the cover plate to avoid bubbles and make the solution spread all over the surface of the prism. Put the instrument into the light plate 4. Align the light source or bright place, observe the field of view through the eyepiece, and turn the eyepiece to adjust the handwheel 5. Make the blue and white lines of the field of view clear. The scale value of the dividing line is the concentration of the solution.
Matters needing attention
This instrument is a precision optical instrument. The following matters should be paid attention to in the use and maintenance: 1. In use, must be careful and careful, strictly according to the instructions, shall not loose the connected parts of the instrument, shall not fall, collision, violent vibration is prohibited. 2. After use, it is strictly prohibited to wash directly in water and wipe with a clean soft cloth. For the optical surface, it should not be hurt or scratched. 3. The instrument should be kept in a dry place without corrosive gas. 4. Avoid the loss of spare parts.
Package contents
1* refractometer 1* Mini screwdriver 1* pipette 1* cleaning cloth 1* English instruction manual 1* plastic box