Steps for using a stereo microscope and precautions when using it
The specific steps for using the Leica microscope are as follows:
(1) After installing the microscope, plug in the power plug, turn on the power switch, and select the lighting mode after ensuring that the power supply voltage is consistent with the rated voltage of the stereo microscope;
(2) According to the specimens to be observed, select the platen (when observing transparent specimens, choose a frosted glass platen; observe opaque specimens, choose a black and white platen), put it into the hole of the base platen, and lock it;
(3) Loosen the fastening screw on the focusing slider, and adjust the height of the mirror body to make it approximately the same working distance as the magnification of the selected objective lens. After adjusting, lock the bracket, put the safety ring against the focusing bracket and lock it;
(4) Install the eyepiece, first loosen the screw on the eyepiece tube, and then tighten the screw after the eyepiece is installed (be careful not to touch the surface of the lens when the eyepiece is put into the stereo microscope eyepiece tube);
(5) Adjust the interpupillary distance. When the user observes a circular field of view through the two eyepieces, the two prism boxes should be moved to change the exit pupil distance of the eyepiece tube so that a circular field of view can be observed. Completely overlapping circular field of view (indicating that the interpupillary distance has been adjusted);
(6) Observe the specimen (focus on the specimen). First adjust the dioptric ring on the left eyepiece tube to the position of the 0 reticle. Normally, first observe from the right eyepiece tube (i.e. fixed eyepiece tube), turn the zoom tube (for models with a zoom device) to the highest position, turn the focusing handwheel to focus on the specimen until the specimen’s After the image is clear, turn the zoom tube to the lowest magnification position. At this time, observe with the left eyepiece tube. If it is not clear, adjust the diopter ring on the eyepiece tube along the axial direction until the image of the specimen is clear. Visually observe its focusing effect;
(7) When the observation is over, turn off the power, remove the specimen, and cover the microscope tightly with a dust cover.
Precautions for Leica microscopes:
(1) The instrument should avoid direct sunlight, high temperature, humidity, dust and corrosion of acid and alkali gases;
(2) The workshop should always be kept clean, and the stereo microscope should be covered with a dust cover after use;
(3) The stereo microscope should be placed on a firm and stable workbench;
(4) When operating the stereo microscope, avoid dirt or fingers from contaminating the lens and color filter.
