Knowledge of this manual is required for the operation of the instrument. Please make yourself familiar with the contents of this manual and pay special attention to hints concerning the safe operation of the instrument.

2. General View (Basic Unit)

The figures integrated in the text each have a figure number and a caption, e.g., "fig. 2 - 8" signifies: the figure in section 2 with the serial number 8. In each figure, details discussed in the text are assigned a reference line marking and an item number. In the running text, "t2 adapter (2 - 8 / 3)": in fig. 8 of section 2, the t2 adapter is marked with the item number 3.

Refer to the annex for explanations of the abbreviations.

3. Operation Steps

Installation and Connection

Unpacking: Carefully unpack the microscope and its accessories from the packaging box, and check whether all parts are complete and undamaged.

Placement: Place the microscope on a stable and flat workbench, ensuring that there is enough space around for operation and observation.

Light Source Connection: Connect the light source cable to the corresponding interface of the microscope, and make sure the connection is firm.

Focus Adjustment

Coarse Focus Adjustment: Rotate the coarse - focus knob to move the objective lens up or down to adjust the distance between the objective lens and the specimen until a rough image can be seen through the eyepiece.

Fine Focus Adjustment: Use the fine - focus knob for precise adjustment to make the image clearer. The fine - focus knob can make smaller - scale adjustments to obtain a more accurate focal plane.

Magnification Adjustment

Zoom Knob: rotate the zoom knob to change the magnification of the microscope. The Stemi series stereo microscopes usually have a certain zoom range, and you can adjust it according to the actual observation needs. For example, if you need to observe the overall structure of the specimen, you can use a lower magnification; if you need to observe the details, you can increase the magnification.

Interpupillary Distance and Diopter Adjustment

Interpupillary Distance Adjustment: Hold the two eyepiece tubes with both hands and move them horizontally until the two circular fields of view in the eyepieces overlap completely, and at this time, the interpupillary distance is adjusted appropriately. The interpupillary distance of different people is different, usually between 55 - 75mm.

Diopter Adjustment: If there is a difference in vision between the two eyes, you can adjust the diopter of the right - eye eyepiece. First, cover the left eye and observe through the right - eye eyepiece, and rotate the diopter adjustment ring of the right - eye eyepiece until the image is clear; then, use the same method to adjust the left - eye eyepiece if necessary.

4. Maintenance and Precautions

Maintenance

Optical Component Cleaning: Use a clean, soft brush or compressed air to gently remove dust on the surface of the objective lens, eyepiece, and other optical components. If there are stains, you can use a special lens - cleaning paper and a small amount of lens - cleaning solution to gently wipe, and the wiping method should be from the center to the edge.

Mechanical Component Maintenance: Regularly check whether the coarse - focus knob, fine - focus knob, and zoom knob are flexible. If there is a problem, you can use a small amount of lubricating oil for appropriate lubrication, but be careful not to let the lubricating oil contaminate the optical components.

Precautions

Avoiding Collision: When moving or operating the microscope, be careful to avoid collision with other objects to prevent damage to the microscope's structure and optical components.

Environmental Requirements: The microscope should be used and stored in a dry, clean, and dust - free environment to avoid the influence of moisture and dust on the performance of the microscope.

Prohibiting Unauthorized Disassembly: Do not disassemble the microscope without permission to avoid damage to the internal structure and affecting its normal use. If there is a problem with the microscope, it should be repaired by a professional.

The above is a simple introduction to the operation of the Stemi 1000 - 2000 - 2000C stereo microscope. For more detailed information, please refer to the official operation manual of the specific model. If you want to know about the operation manuals of other models of stereo microscopes, you can provide more specific model information.