AY12938 - Microscope Barska - Free user manual and instructions
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| Product Type | Compound Light Microscope |
| Brand | Barska |
| Model | AY12938 |
| Magnification Range | 40x to 1000x |
| Eyepiece | WF10x (20mm) |
| Objective Lenses | 4x, 10x, 40x, 100x (oil immersion) |
| Illumination | Built-in LED with adjustable brightness |
| Stage | Double-layer mechanical stage with vernier scale |
| Condenser | Abbe condenser with NA 1.25 |
| Focus System | Coaxial coarse and fine focus knobs |
| Power Supply | Rechargeable battery or AC adapter (included) |
| Battery Life | Up to 20 hours continuous use |
| Dimensions | 12.5 x 8.0 x 16.5 inches (31.8 x 20.3 x 41.9 cm) |
| Weight | 5.5 lbs (2.5 kg) |
| Material | Aluminum alloy frame with steel stage |
| Color | White/Light gray |
| Included Accessories | Prepared slides, blank slides, cover slips, dust cover, oil bottle, tweezers, dropper |
| Cleaning | Wipe lenses with lens paper; wipe frame with a damp cloth |
| Safety | Lower intensity when not in use; avoid direct eye exposure to light source |
| Spare Parts Availability | Replaceable bulbs, fuses, and eyepieces available from manufacturer |
| Warranty | Limited 1-year warranty |
| Intended Use | Educational, hobbyist, and entry-level laboratory use |
Frequently Asked Questions - AY12938 Barska
How do I clean the microscope lenses?
Use only special lens paper or a microfiber cloth. Apply a drop of lens cleaning solution to the paper, not directly on the lens. Gently wipe in a circular motion. Avoid using household cleaners or abrasive materials.
What type of power source does the microscope use?
The Barska AY12938 can be powered via the included AC adapter or by its rechargeable battery. The battery provides up to 20 hours of use per charge.
Why is the image blurry even after adjusting focus?
Ensure the objective lens is clean. Start with the lowest magnification (4x) and use the coarse focus knob. Then switch to higher magnifications and fine-tune with the fine focus knob. Check that the slide is placed correctly on the stage.
How do I change the objective lens?
Rotate the nosepiece until the desired objective lens clicks into place. Always start with the lowest magnification when beginning observation.
Can I use oil immersion with this microscope?
Yes, the 100x objective is designed for oil immersion. Apply a drop of immersion oil on the slide before using the 100x lens. Clean the lens immediately after use with lens paper.
The light does not turn on. What should I check?
First, check if the battery is charged. If using the AC adapter, ensure it is properly connected. Verify that the power switch is in the ON position. If still not working, the bulb may need replacement.
How do I adjust the brightness of the LED?
Use the brightness control knob located near the light source. Rotate it clockwise to increase brightness and counterclockwise to decrease.
What is the maximum magnification achievable?
With the 100x oil immersion objective and the 10x eyepiece, the maximum magnification is 1000x. Digital zoom is not present.
Are replacement parts available?
Yes, replacement bulbs, fuses, eyepieces, and objectives can be ordered from Barska or authorized dealers. Refer to the user manual for part numbers.
How should I store the microscope when not in use?
Always cover the microscope with the supplied dust cover. Store in a dry, cool place away from direct sunlight. Make sure the stage is lowered and the lowest objective (4x) is in position.
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USER MANUAL AY12938 Barska
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Product information
Brand : Barska
Model : AY12938
Category : Microscope