Common Microscope Problems and How to Solve Them
When you first start using a microscope, you will encounter some common problems. Listed below are some common problems and solutions so you don't have to dig through the instrument manual or contact an instrument service engineer.
1. The microscope bulb does not light up
1. Check whether the power cord is loose and whether the socket is normal.
2. Check whether the fuse is burned out (most fuses are located at the power interface of the fuselage). If it is burned out, replace the fuse.
3. Replace the spare bulb. Be careful not to touch the bulb directly with your fingers during the replacement process.
2. The microscope cannot focus and image
1. Check whether the focus limiter mechanism is not adjusted properly, resulting in insufficient working distance.
2. Check whether the sample is placed upside down. If the cover glass is facing down, the working distance is not enough at high magnification.
3. The image is clear at low magnification, but blurry at high magnification.
1. There are higher requirements for sample thickness and flatness at high magnification.
2. When using a biological 100x lens, pay attention to whether there is any oil dripping and whether the objective lens is clean.
3. When switching to high magnification, the aperture diaphragm on the condenser is enlarged accordingly.
4. The field of vision appears bright and uneven
Check whether the optical path is aligned before using the microscope.
5. The bulb is on, but the eyepiece field of view is completely dark.
1. Check whether the objective lens is turned into the optical path, whether the field diaphragm and aperture diaphragm are adjusted too small, and whether the optical path is centered.
2. Check whether the trinocular headpiece and video switching lever are in the video position.
6. The brightness of the field of view is dark
1. Whether the field diaphragm and aperture diaphragm are adjusted too small.
2. Whether the light path is adjusted in place (condenser, diaphragm, filament).
3. Whether polarizing and phase difference components are used.
7. Black edges appear in the eyepiece field of view
1. Check whether the field diaphragm is set too small;
2. Is the light path aligned (condenser, diaphragm, filament);
3. Whether the objective lens turntable is in place;
4. Whether the position of the eyepiece tube and the fuselage is accurate.
8. Synchronization problem. When using the camera to observe, the eyepiece observation is clear, but the computer display image is blurry.
1. Adjust the height of the interface or interface lens to achieve synchronization.
2. If the adjustment interface cannot be fully synchronized, try adjusting the eyepiece diopter.






