NATIONAL GEOGRAPHIC 300X, 1200X Microscope Set Instruction Manual

October 30, 2023
NATIONAL GEOGRAPHIC

NATIONAL GEOGRAPHIC 300X, 1200X Microscope Set

NATIONAL GEOGRAPHIC 300X, 1200X Microscope Set

Product Information: 300X/1200X Microscope Set

The 300X/1200X Microscope Set is a magnification tool that consists of two lenses: the ocular and the objective. The ocular (1) and the objectives in the turret (3) are made up of multiple lenses. The microscope set comes with a micro-projector that can be attached to the ocular (1) to project the image onto a screen. It also has an electronic light source/battery compartment (6) and a mirror (5) for illumination.

Warnings

  • Not suitable for children under three years old due to small parts that pose a choking hazard.
  • Functional sharp points or edges can cause injury. Keep instructions and packaging for important information.

General Warnings

  • Choking hazard — This product contains small parts that could be swallowed by children. This poses a choking hazard.
  • Risk of electric shock — This device contains electronic components that operate via a power source (power supply and/or batteries). Only use the device as described in the manual, otherwise you run the risk of an electric shock.
  • Risk of fire/explosion — Do not expose the device to high temperatures. Use only the recommended batteries.
  • Batteries are to be inserted with the correct polarity.
  • The supply terminals are not to be short-circuited.
  • Excessive heat or improper handling could trigger a short-circuit, a fire or an explosion.
  • Risk of chemical burn — Empty or damaged batteries could cause burns if they come into contact with the skin. If necessary, wear adequate gloves for protection.
  • Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will contact the Service Centre and can send the device in to be repaired, if necessary.
  • Use only the recommended batteries.
  • Exhausted batteries are to be removed from the toy.
  • Different types of batteries or new and used batteries are not to be mixed.
  • Remove the batteries from the unit if it has not been used for a long time.
  • Rechargeable batteries are to be removed from the toy before being charged. Rechargeable batteries are only to be charged under adult supervision.
  • Never recharge normal, non-rechargeable batteries. This could lead to explosion during the charging process.
  • Tools with sharp edges are often used when working with this device. Because there is a risk of injury from such tools, store this device and all tools and accessories in a location that is out of the reach of children.
  • Keep instructions and packaging as they contain important information.

Manual Download, Service, and Warranty Information

Parts overview

  1. Eyepiece
  2. Focus knob
  3. Objective turret
  4. Stage
  5. Mirror
  6. Electronic light source/battery compartment
  7. Base
  8. Rubber base
  9. Microscope arm
  10. Color-filter disc
  11. Prepared SlidesNATIONAL GEOGRAPHIC 300X, 1200X Microscope Set fig-1
  12.  Cover Plates
  13. Blank Slides
  14. Petri dish
  15. Micro projector
  16. CR2032 battery
  17. 3X magnifying glass
  18. Settling cylinder
  19. Reservoir
  20. Shrimp-farming accessories
  21. Microscope instruments
  22. Micro-slicer
  23. HatcheryNATIONAL GEOGRAPHIC 300X, 1200X Microscope Set fig-2

Product Usage Instructions

Assembly and Setup

  1. Remove all parts from the packaging and ensure that you have all the necessary parts.
  2. Place the microscope on a flat and stable surface, such as a table or desk.
  3. Attach the ocular (1) to the microscope arm (9).
  4. Insert the desired objective into the turret (3) by rotating it until it clicks into place.
  5. Place the object to be viewed on stage (4) and adjust the focus knob (2) until the image is clear.

General Usage

  • Avoid direct sunlight when using the mirror for illumination as it may cause glare and affect the clarity of the image.
  • For electric illumination, remove the protective film from the battery compartment before first use.
  • Do not disassemble any parts of the microscope as it may affect its functionality.

Using the Micro-Projector

  1. Unscrew the ocular (1) from the microscope arm (9).
  2. Attach the micro-projector to the open ocular port, ensuring that the matt screen faces you.
  3. Adjust the illumination to brighten the matt screen.
  4. The projected image can now be viewed on a screen.

Cleaning and Maintenance

  • Use a soft, dry cloth to clean the lenses and other parts of the microscope.
  • Avoid using water or cleaning solutions as they may damage the lenses.

Disposal and Warranty

  • Dispose of the microscope in accordance with local regulations.
  • To benefit from the warranty during the specified warranty period, register your product on the manufacturer’s website.

What is a microscope?

A microscope contains two lens systems: the eyepiece and the objective. We’re presenting these systems as one lens each so that the concept is easier to understand. In reality, however, the eyepiece (1) and the objective in the turret (3) are made up of multiple lenses. The lower lens (objective) produces a magnified image of the prepared specimen placed on the stage (4). The picture, which you can’t see, is magnified once more by the second lens (eyepiece, 1), which you can see as the ‘microscope picture’.

Assembly and location

Before you start, choose an ideal location for using your microscope. It’s important that you choose a spot with enough light for normal observation. Furthermore, it is recommended that you place the microscope on a stable surface because a shaky surface will not lead to satisfactory results.

Normal observation

For normal observation, place the microscope in a bright location (near a window or desk lamp, for example). Remove the microscope from the package and tilt the microscope arm (9) so that it’s in a comfortable viewing position for you.
Turn the focus knob (2) to the upper stop, and set the objective turret (3) to the lowest magnification. Now, take a look through the eyepiece and adjust the mirror (5) so that you see a uniform, bright circle of light. Or, you can use the electronic light source (6). You’ll find further tips about the light source in the next section. Now, place a prepared slide (11) under the clips on the stage (4), directly under the objective. When you take a look through the eyepiece, you can see the magnified specimen. At this point, you still might see a slightly fuzzy picture. Adjust the image sharpness by slowly turning the focus knob (2) until the picture appears sharp and clear. You can now select a higher magnification by turning the objective turret and selecting a different objective.
When you do so, note that the sharpness of the picture must be adjusted again for the higher magnification. Also, the higher the magnification, the more light you will need for good illumination of the picture.
TIP: Avoid positioning the mirror so that it is exposed to direct sunlight since it can cause a glare, which won’t allow you to get a clear picture.

Observation (electronic light source)

NOTE! Before initial operation, the foil used for protecting the battery from discharging must be pulled out of the battery compartment.
Locate the mirror/light on the base of the microscope. Flip the mirror/light with the light facing up and press the button to power on the light. This microscope is equipped with an incandescent light that illuminates the specimen from below.
TIP: The higher the magnification used, the more light is required for a good illumination of the picture. Therefore, always start your experiments with one of the lower magnifications.

Battery change

  1. Remove the safety screw from the cover.
  2. Remove the battery cover.
  3. Slide out the coin battery holder.
  4. Install the CR2032 coin battery with the positive (+) polarity facing down and the negative (-) polarity facing up on the holder.
  5. Replace the battery cover.
  6. Screw in the safety screw back to the cover. NATIONAL GEOGRAPHIC 300X, 1200X Microscope Set fig-3

Projector

NATIONAL GEOGRAPHIC 300X, 1200X Microscope Set fig-4

The included micro-projector (15) is ideal for looking at a specimen with multiple people at the same time. To use the projector, you also have to use the electronic light source (6). This way, you can show your results to your friends and family. Unscrew the eyepiece (1) from the microscope and place the micro-projector on the open eyepiece support so that the matte screen is pointing behind you. Adjust the light so that the matte screen is lit up brightly.
You can adjust the focus of the prepared slide image using the focus knob (2). Make sure to swivel the microscope arm (9) back into an upright position so that you can comfortably observe the specimen. In a dark room, it is also possible to project the microscope picture on a white wall. To do this, remove the matte screen. Swivel the tripod so that the upper edge of the projector is horizontal. Keep in mind that the image brightness is reduced and the picture will be darker if the projector is far away from the wall.

Experiments
Use the following web link to find interesting experiments you can try out. http://www.bresser.de/downloads

Notes on Cleaning

  • Before cleaning the device, disconnect it from the power supply by removing the plug or batteries.
  • Only use a dry cloth to clean the exterior of the device. To avoid damaging the electronics, do not use any cleaning fluid.
  • Protect the device from dust and moisture.
  • The batteries should be removed from the unit if it has not been used for a long time.

EC Declaration of Conformity

Bresser GmbH has issued a “Declaration of Conformity” in accordance with applicable guidelines and corresponding standards. The full text of the EU Declaration of Conformity is available at the following internet address: www.bresser.de/download/9118100/CE/9118100_CE.pdf

UKCA Declaration of Conformity
Bresser GmbH has issued a „Declaration of Conformity“ in accordance with applicable guidelines and corresponding standards. The full text of the UKCA declaration of conformity is available at the following internet address:
www.bresser.de/download/9118100/UKCA/9118100_UKCA.pdf Bresser GmbH has issued a „Declaration of Conformity“ in accordance with applicable guidelines and corresponding standards. The full text of the UKCA declaration of conformity is available at the following internet address: www.bresser.de/download/9118100/UKCA/9118100_UKCA.pdf

Do not dispose of electronic devices in the household garbage!
As per Directive 2012/19/EC of the European Parliament on waste electrical and electronic equipment and its adaptation into German law, used electronic devices must be collected separately and recycled in an environmentally friendly manner.
Empty, old batteries must be disposed of at battery collection points by the consumer. You can find out more information about the disposal of devices or batteries produced after 6 January 2006 from your local waste-disposal service or environmental authority.
In accordance with the regulations concerning batteries and rechargeable batteries, disposing of them in the normal household waste is explicitly forbidden. Please make sure to dispose of your used batteries as required by law—at a local collection point or in the retail market. Disposal in domestic waste violates the Battery Directive.
Batteries that contain toxins are marked with a sign and a chemical symbol.

  1. battery contains cadmium
  2. battery contains mercury
  3. battery contains lead

Warranty

The regular warranty period is 2 years and begins on the day of purchase. To benefit from an extended voluntary warranty period as stated on the gift box, registration on our website is required.
You can consult the full warranty terms as well as information on extending the warranty period and details of our services at www.bresser.de/warranty_terms.b 

References

Read User Manual Online (PDF format)

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