BRESSER 9118002 National Geographic 300x-1200x Microscope Instruction Manual
- June 5, 2024
- BRESSER
Table of Contents
BRESSER 9118002 National Geographic 300x-1200x Microscope
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
- Eyepiece
- Focus knob
- Objective turret
- Stage
- Mirror
- Electronic light source
- Base with battery compartment
- Rubber base
- Microscope arm
- Prepared slides
- Cover plates
- Reservoir
- Replacement bulb
- 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 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). 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)
To use the electronic light source (6), you need to install two 1.5 V AA batteries in the base of the microscope (7). Remove the rubber base (8) on the microscope and insert the batteries according to the displayed +/- information. Reattach the rubber base to the microscope. You can turn on the light by rotating it in the direction of the stage (4). Take a look through the eyepiece and adjust the light so that you get optimal picture brightness. Now you can observe in the same way as described in the previous section. The bulbs for the electronic light can be replaced. One replacement bulb (13) is included. When you use another bulb, make sure to pay attention to the maximum wattage, which is displayed on the lamp body. TIP: The higher the magnification you use the more light is required for good illumination of the picture. Therefore, always start your experiments with a low magnification.
Notes on Cleaning EN
- 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
Bresser UK Ltd. Suite 3G, Eden House, Enterprise Way, Edenbridge, Kent TN8 6Hf, Great Britain
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 2002/96/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. The 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 and Service
The regular guarantee period is 5 years and begins on the day of purchase. You can consult the full guarantee terms and details of our services at www.bresser.de/warranty_terms.