BRESSER 8851300WXH000

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Bresser Junior Microscope 40x-640x User Manual

Model: 8851300WXH000

Introduction

Welcome to the world of microscopy with your Bresser Junior Microscope 40x-640x! This instrument is designed for quick and easy discovery, providing an educational introduction to the microscopic world. It is an excellent tool to stimulate curiosity and scientific learning for users over 8 years old.

The microscope features adjustable LED illumination and offers a magnification range from 40x to 640x. It is also equipped with a diaphragm disc to adjust the light beam for optimal viewing. Thanks to its battery operation, this portable microscope can be used anywhere, facilitating microscopic observations at home, school, or while traveling.

What's in the Box

Please check the contents of your package to ensure all items are present:

Microscope
Smartphone holder
Prepared slides
Blank slides and cover slips
Experiment kit (including brine shrimp eggs and yeast)
Sample bottles
Microtome
Tweezers
Pipette
Magnifying glass
Measuring cup
Instruction manual

Bresser Junior Microscope and all included accessories — Image: The Bresser Junior Microscope with all its accessories, including the smartphone holder, prepared slides, experiment kit, and tools.

Close-up of Bresser Junior Microscope accessories — Image: A detailed view of the various accessories included with the microscope, such as sample bottles, tweezers, pipette, and magnifying glass.

Setup

Battery Installation: The microscope requires 3 AA batteries (included). Locate the battery compartment, usually at the base of the microscope. Insert the batteries according to the polarity markings.
Placement: Place the microscope on a stable, flat surface. Ensure adequate lighting in your observation area.
Initial Adjustment: Rotate the revolving nosepiece to select the lowest magnification objective lens (e.g., 4x). Adjust the eyepiece for comfortable viewing.
Smartphone Holder Attachment: To use the smartphone holder, gently slide it onto the eyepiece. Secure your smartphone in the holder, aligning its camera with the eyepiece lens.

Bresser Junior Microscope with smartphone adapter attached — Image: The Bresser Junior Microscope with a smartphone securely mounted on its eyepiece using the included adapter, ready for capturing images.

Operating Instructions

Placing a Specimen: Place a prepared slide or your own specimen on the stage clips. Ensure it is centered over the light aperture.
Adjusting Illumination: Turn on the LED light source. Use the diaphragm disc located beneath the stage to adjust the amount of light passing through the specimen. Experiment with different settings for optimal contrast.
Adjusting Magnification: Start with the lowest magnification objective lens. Look through the eyepiece and slowly turn the coarse focus knob until the specimen comes into view. Use the fine focus knob for sharper detail. To increase magnification, rotate the revolving nosepiece to a higher power objective (e.g., 10x, 40x). Re-adjust focus as needed.
Using the Smartphone Adapter: Once your specimen is in focus through the eyepiece, use your smartphone camera to view and capture the magnified image. Adjust the phone's position slightly until the microscope's field of view fills the screen.
Experiment Kit: The included experiment kit allows you to raise brine shrimp (Artemia). Follow the instructions provided with the kit for setting up the culture and observing the shrimp under the microscope.

Child observing through Bresser Junior Microscope — Image: A child intently looking through the eyepiece of the Bresser Junior Microscope, demonstrating typical usage.

Close-up of Bresser Junior Microscope objective lenses — Image: A close-up view of the revolving nosepiece and objective lenses (4x, 10x, 40x) of the Bresser Junior Microscope.

Detailed view of Bresser Junior Microscope eyepiece and smartphone adapter — Image: A detailed view showing the eyepiece and the smartphone adapter attached to the Bresser Junior Microscope, highlighting how a phone can be used for observation.

Maintenance

Cleaning Lenses: Use a soft, lint-free cloth specifically designed for optical lenses to clean the eyepiece and objective lenses. Do not use abrasive materials or harsh chemicals.
Cleaning Body: Wipe the microscope body with a soft, damp cloth. Avoid getting moisture into electronic components.
Storage: Store the microscope in a clean, dry place, away from direct sunlight and extreme temperatures. Cover it with a dust cover when not in use.
Battery Replacement: Replace batteries when the LED illumination dims or stops working. Always use fresh AA batteries and dispose of old batteries responsibly.

Troubleshooting

Problem	Possible Cause	Solution
No image visible	LED light is off; specimen not centered; focus not adjusted.	Turn on LED light; center specimen; adjust focus knobs.
Image is blurry	Focus not properly adjusted; lenses are dirty.	Use fine focus knob for sharp image; clean lenses with optical cleaning cloth.
LED light not working	Batteries are dead or incorrectly inserted; light switch is off or faulty.	Check battery orientation and replace if necessary; ensure light switch is on. If the light cannot be turned off with the dial, remove the batteries to power off.
Smartphone image is not clear or centered	Smartphone camera not aligned with eyepiece; microscope not in focus.	Adjust smartphone position on the holder until the image is centered; ensure microscope is focused before attaching the phone.

Specifications

Brand: BRESSER
Model Number: 8851300WXH000
Magnification: 40x - 640x
Light Source: LED
Power: 3 x AA Batteries (included)
Dimensions (L x W x H): 16 x 10 x 22 cm
Weight: 556 grams
Material: Plastic
Color: Blue
Objective Description: Plan Achromatic, 40-640x
Real Angle of View: 45 degrees

Warranty and Support

For detailed warranty information, please refer to the warranty card included with your product or visit the official BRESSER website. If you encounter any issues or require technical assistance, please contact BRESSER customer support or the retailer from whom you purchased the product.

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