OBT 103 - Microscope Kern - Free user manual and instructions
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| Product Type | Binocular Microscope |
| Brand | Kern |
| Model | OBT 103 |
| Optical System | Infinity Corrected Optics, Binocular Head |
| Magnification Range | 40x to 1000x |
| Eyepieces | Widefield WF10x/20mm, Pair |
| Objective Lenses | 4x, 10x, 40x, 100x (Oil Immersion) |
| Stage | Double Layer Mechanical Stage, Travel Range 75 x 40 mm |
| Illumination | Built-in LED, Adjustable Brightness, 3W |
| Condenser | Abbe Condenser N.A. 1.25, Iris Diaphragm |
| Power Supply | 100-240V AC, 50/60Hz, External Power Adapter |
| Focus System | Coaxial Coarse and Fine Focus, Fine Graduation 0.002mm |
| Dimensions (W x D x H) | Approx. 200 x 400 x 420 mm |
| Net Weight | Approx. 6.5 kg |
| Material | Metal Frame with Plastic Cover |
| Cleaning | Use soft, lint-free cloth; avoid alcohol or solvents. Clean lenses with lens paper. |
| Safety | Keep away from moisture and direct sunlight. Disconnect power before cleaning. |
| Spare Parts Availability | Replacement bulbs, fuses, and eyepieces available from Kern or authorized dealers. |
| Repair Service | Contact Kern customer service or an authorized service center. |
Frequently Asked Questions - OBT 103 Kern
How do I clean the lenses of my Kern OBT 103 microscope?
Use a soft, lint-free cloth or specialized lens paper. For stubborn dirt, moisten the cloth with distilled water or a mild lens cleaner. Avoid using alcohol, acetone, or other solvents as they may damage the lens coating.
What is the maximum magnification of the OBT 103?
The microscope offers a magnification range from 40x to 1000x, achieved by combining the 10x eyepieces with the 4x, 10x, 40x, and 100x objectives. The 100x objective requires immersion oil.
How do I adjust the brightness of the illumination?
The built-in LED illumination has an adjustable brightness control. Locate the brightness knob on the side of the microscope base and turn it to increase or decrease the light intensity.
Can I use oil immersion with the 40x objective?
No. Oil immersion should only be used with the 100x objective. Using oil on other objectives can cause damage. Clean any oil residue immediately after use.
The image is blurry, what should I do?
First, ensure the objective lens is clicked into place. Adjust the coarse focus knob to bring the image into approximate focus, then use the fine focus knob for precise clarity. Check that the eyepieces are clean and properly adjusted for your interpupillary distance.
How do I replace the LED bulb?
The LED illumination unit is integrated and not user-replaceable. If it fails, contact Kern customer service for repair or replacement. Avoid disassembling the microscope yourself.
What type of power adapter does the OBT 103 require?
The microscope uses an external power adapter that accepts 100-240V AC, 50/60Hz. The adapter output is typically 6V DC, 1A. Use only the adapter supplied by Kern.
How do I calibrate the mechanical stage?
The mechanical stage does not require calibration. Ensure the slide is securely clamped and use the X and Y knobs to move the slide smoothly. If movement is uneven, check for debris on the stage guides.
Can I attach a camera to the OBT 103?
Yes, the binocular head may have a photo port (trinocular tube) if available on your model. Alternatively, you can use a smartphone adapter over one eyepiece. Check the manual for compatible accessories.
Where can I find replacement spare parts?
Replacement parts such as eyepieces, objectives, and dust covers can be ordered through Kern's website or from authorized distributors. Contact Kern support for specific part numbers and availability.
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USER MANUAL OBT 103 Kern
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Product information
Brand : Kern
Model : OBT 103
Category : Microscope