NATIONAL GEOGRAPHIC 9118002 300X-1200X Microscope Instruction Manual

June 3, 2024
NATIONAL GEOGRAPHIC

NATIONAL GEOGRAPHIC 9118002 300X-1200X Microscope

NATIONAL-GEOGRAPHIC-9118002-300X-1200X-Microscope-Instruction-Manual-
product

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. Do not short-circuit the device or batteries, or throw them into a fire. Excessive heat or improper handling could trigger a short-circuit, a fire or an explosion.
  •  Risk of chemical burn — Make sure you insert the batteries correctly. 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.
  •  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.

Parts overview

NATIONAL-GEOGRAPHIC-9118002

  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.  Prepared slides
  11.  Cover plates
  12.  Reservoir
  13.  CR2032 battery
  14.  Microscope instruments

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 (10). 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 (10) under the clips on 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). 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 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

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/9118002/CE/9118002_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/9118002/UKCA/9118002_UKCA.pdf

Disposal
Dispose of the packaging materials properly, according to their types, such as paper or cardboard. Contact your local waste-disposal service or environmental authority for information on the proper disposal.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 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.

  • battery contains cadmium
  • battery contains mercury
  • 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.

References

Read User Manual Online (PDF format)

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