1. Must be proficient in and strictly implement the operating procedures, and operate the microscope in accordance with strict procedures and instructions.

2. When transporting the microscope, be sure to hold the curved arm with one hand and the base with the other hand. The microscope should not be tilted to prevent the eyepiece from sliding out of the upper end of the lens barrel. Handle with care when transporting the microscope.

3. During observation, the position of the microscope cannot be moved casually.

4. All the optical parts of the microscope can only be wiped with a special lens cleaning paper. Do not wipe with other objects, let alone touch the lens with your fingers, so as not to stain the lens with sweat.

5. Keep the microscope dry and clean to avoid contamination by dust, water and chemical reagents.

6. When converting the objective lens, do not move the animal lens, only rotate the converter.

7. Do not turn the focusing handwheel at will. When using the fine focus adjustment knob, the force should be light, the rotation should be slow, and the rotation should not be hard when it does not turn.

8. Do not arbitrarily disassemble the parts on the microscope, and it is strictly forbidden to disassemble the objective lens at will, so as not to damage the screw of the converter or make the screw of the low and high magnification objectives out of focus during conversion.

9. When using a high magnification objective lens, do not use the coarse focus adjustment handwheel to adjust the focal length, so as not to move too far and damage the objective lens and glass slide.

10. Before returning it after use, you must check whether there is water or reagents on the objective lens. If there is, wipe it clean, and wipe the stage clean, and then put the microscope in the box, and pay attention to the lock box.

11. It is best to store the microscope in a dry and clean environment to avoid dust and chemical contamination.