Common failures of the microscope and methods of troubleshooting
Optical microscope has a wide range of applications in various sectors of industry, agriculture and scientific research due to its many advantages. If there are some problems in the process of using it, you can solve them by yourself according to the actual situation.
Microscope common faults and troubleshooting methods: the field of view is blurred or dirty, the possible causes are specimen with dirt, eyepiece surface with dirt, objective lens surface with dirt, the surface of the working plate with dirt. Depending on the situation can be taken to clean the specimen, the eyepiece, the objective lens and the surface of the work plate to solve the problem of dirt. Double image does not coincide with the possible reasons for the pupil distance adjustment is not correct can be taken to correct the pupil distance measures, double image does not coincide with the degree of vision may also be adjusted incorrectly can be taken to re-adjust the degree of vision, there may be left and right eyepiece magnification is different can be checked eyepieces and re-install the same magnification of the eyepieces. If the image is not clear, there may be dirt on the surface of the objective lens, please clean the objective lens. If the image is not clear when zooming, it may be that the view is not correctly adjusted and the focus is not correctly adjusted, you can re-adjust the view and focus. If the bulb often burns out and the light flickers, it may be that the local line voltage is too high, the bulb burns out and the wire is connected, please check the voltage and the wire connection of the microscope carefully to see if the connection is firm, if not, it may be that the bulb burns out and you can replace the bulb again to solve the problem.
Optical microscope in the use of the adjustment before the main: focusing, visual adjustment, pupil distance adjustment and bulb replacement steps:
1. Focusing: put the table plate into the mounting hole of the table plate on the base. Observation of transparent specimens, the choice of hairy glass table plate; observation of opaque specimens, the choice of black and white table plate. Then loosen the focusing slide on the fastening screws, adjust the height of the mirror body, so that its magnification with the selected objective lens roughly the same working distance. After adjusting, the fastening screw must be locked. When focusing, it is recommended to use flat objects, such as flat paper with characters printed on it, straightedge, triangular board, etc. Degree of vision adjustment: first of all, the right and left eyepiece barrel on the degree of vision circle are adjusted to the 0 mark position. Usually, the first observation from the right eyepiece barrel. Turn the zoom handwheel to * low times the position, turn the focusing handwheel and the degree of vision adjustment circle on the specimen to adjust until the specimen's image is clear, and then turn the zoom handwheel to * high times the position of the specimen to continue to regulate until the specimen's image is clear, at this time, with the left eyepiece barrel to observe, such as unclear along the axial adjustment of the left eyepiece barrel of the degree of vision on the circle, until the specimen's image is clear.
2. Pupil distance adjustment: Trigger the two eyepiece barrels, you can change the pupil distance of the two eyepiece barrels. When the user observes the field of view in the two round field of view completely overlap, that the pupil distance has been adjusted. It should be noted that due to individual differences in visual acuity and eye adjustment, therefore, different users or even the same user at different times when using the same microscope, should be adjusted separately for the flush focus, in order to obtain * the best observation effect. Whether replacing the upper light source bulb or the lower light source bulb, be sure to turn off the power switch and unplug the power cord from the power outlet before replacing it. When replacing the upper light source bulb, first unscrew the knurled screw of the upper light source light box, remove the light box, then remove the bad bulb from the lamp holder, replace it with a good bulb, and then install the light box and knurled screw. When replacing the lower light source bulb, you need to remove the glass table plate or black and white table plate, from the base, and then remove the bad bulb from the lamp base and replace it with a good bulb; then install the glass table plate or black and white table plate. When replacing the bulb, please use a clean soft cloth or cotton gauze to wipe the bulb glass shell clean to ensure the lighting effect.
