BRESSER 8856000 Junior Optic Microscop Instruction Manual

Art. No. 8856000
Mikroskop Microscope
40x-640x Operating Instructions

8856000 Junior Optic Microscop

EXPERIMENTS:
http://www.bresser.de/faq

WARNINGS! Not suitable for children under three years.
CHOKING HARZARD – small parts.
PUNCTURING HAZARD – functional sharp points or sharp edges. Keep instructions and packaging as they contain important information.

Operating Instructions

WARNING! Not for children under three years. Choking hazard – small parts. Contains functional sharp edges and points!
ATTENTION: Only suitable for children of at least 8 years of age. Instructions for parents or other responsible persons are enclosed and must be followed.
Keep packaging as it contains 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 (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.

• Leaking battery acid can lead to chemical burns. Avoid contact of battery acid with skin, eyes and mucous membranes. In the event of contact, rinse the affected region  immediately with a plenty of water and seek medical attention.

• Use only the recommended batteries. Always replace weak or empty batteries with a new, complete set of batteries at full capacity. Do not use batteries from different  brands or with different capacities. Remove the batteries from the unit if itis not to be used for a long period of time, or if the batteries are empty!

• Never recharge normal, non-rechargeable batteries. This could lead to explosion during the charging process.

• Rechargeable batteries are only to be charged under adult supervision.

• Rechargeable batteries are to be removed from the toy before being charged

• The terminals must not be short-circuited.

• 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.

• Keep instructions and packaging as they contain important information.

• The chemicals and liquids provided should be kept out of reach of children. Do not drink the chemicals! Hands should be washed thoroughly under running water after  use. In case of accidental contact with the eyes or mouth rinse with water. Seek medical treatment for ailments arising from contact with the chemical substances and take the chemicals with you to the doctor.

• Warning: The specimen slicer contains functional sharp edges and points!

TIPS on cleaning
Remove the device from it’s energy source before cleaning (remove 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.

Parts overview

1. Zoom Eyepiece
2. Focus knob
3. Objective turret
4. Stage
5. On/off switch ( illumination)
6. Electronic light source
7. Base with battery compartment
8. Battery compartment (2x AA)
9. Cover plates
10. Blank slides
11. Empty Bottles
12.  Microscope instruments
13. Wheel with pinhole apertures / Filter wheel
14. Measuring cup
15. Hatchery
16. MicroCut
17. Petri dish
18. Eyecup
19. Smartphone holder

1. 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. 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’.

2. 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.

3. Normal observation

For normal observation, place the microscope in a bright location (near a window or desk lamp, for example).
Turn the focus knob (2) to the upper stop, and set the objective turret (3) to the lowest magnification.
Now, turn on the light using the switch on the microscope base. You’ll find further tips about the light source in the next section. Now, place a prepared slide under the clips  on the stage (4), directly under the objective (1). When you take a look through the eyepiece, you can see the magni-fied 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. The wheel with pinhole apertures (13) below the microscope stage (4) will help you in viewing very bright or clear-sighted preparations.  Turn the wheel (13) till the best contrast is achieved.

4. Observation (electronic light source)

For observation with the electronic light source (6) you need to insert 2 AA batteries 1.5 V, in the battery compartment (8) on the base of the microscope (7). The battery  compartment is opened using a Phillips screwdriver. Insert the batteries with the correct polarity (+/- indication). Put the battery cover first into the small opening so that the lid fits perfectly. Now you can tighten the screw.
The lighting is switched on when you turn the switch on the microscope base.
Now you can observe in the same way as described in the previous section.
TIP: The higher the magnification you use the more light is required for a good illumination of the picture. Therefore, always start your experiments with a low magnification.

Condition and prepare viewed objects

5.1. Condition
This microscope features transmitted light, so that transparent specimens can be examined. If opaque specimens are being examined, the light from below goes through the specimen, lens and eyepiece to the eye and is magnified en route (direct light principle). Some small water organisms, plant parts and animal components are transparent by nature, but many others require pretreatment — that is, you need to make a thinnest possible slice of the object by hand cutting or using a microtome, and then examine this sample.

5.2. Creation of thin preparation cuts
Specimens should be sliced as thin as possible. A little wax or paraffin is needed to achieve the best results. Put the wax into a heat-safe bowl and heat it over a flame until the  wax is melted. You can use a candle flame to melt the wax.

DANGER!
Be exremely carfeful when dealing with hot wax, as there is a danger of being burned.
Then, dip the specimen several times in the liquid wax. Allow the wax that encases the specimen to harden. Use a MicroCut or other small knife or scalpel to make very thin slices of the object in its wax casing.

DANGER!
Be extremely careful when using the MicroCut, knife or scalpel. These instruments are very sharp and pose a risk of injury.
Place the slices on a glass slide and cover them with another slide before attempting to view them with the microscope.

5.3. Creation of your own preparation
Put the object to be observed on a glass slide and cover the object with a drop of distilled water using the pipette (12).
Set a cover glass (available at a well-stocked hobby shop) perpendicular to the edge of the water drop, so that the water runs along the edge of the cover glass. Now lower now the cover glass slowly over the water drop.

Experiments

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

Smartphone

holder Open the flexible holder and put your smartphone in it. Close the cradle and make sure your phone is properly seated. The camera must be positioned exactly above the eyepiece. Open the locking clip on the back of the holder and fit the eyepiece view exactly onto your smartphone camera. Now retighten the locking clip and attach the smartphone holder to the eyepiece of your microscope. Now start the camera app. If the image is not yet centered on your display, loosen the locking clip slightly and readjust. It may be necessary to use the zoom function to fill the image on the display. A slight shading at the edges is possible. Remove the smartphone from the cradle after use!

NOTE:
Make sure that the smartphone cannot slip off the cradle. Bresser GmbH accepts no liability for damage caused by a dropped smartphone!

Troubleshooting

• Readjust focus

Warranty & Service
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.

DISPOSAL

Dispose of the packaging material/s as legally required. Consult the local authority on the matter if necessary.

Do not dispose of electrical equipment in your ordinary refuse. The European guideline 2002/96/EU on Electronic and Electrical Equipment Waste and relevant laws applying to it require such used equipment to be separately collected and recycled in an environment-friendly manner.
Empty batteries and accumulators must be disposed of separately. Information on disposing of all such equipment made after 01 June 2006 can be obtained from your local authority.
In accordance with the regulations concerning batteries and rechargeable batteries, disposing of them in the normal household waste is explicitly forbidden. Please pay attention to dispose of your used batteries as required by law – at a local collection point or in the retail market (a disposal in domestic waste violates the Battery Directive).
Batteries that contain toxins are marked with a sign and a chemical symbol. „Cd“ = cadmium, „Hg“ = mercury, „Pb“ = lead.

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

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/8856000/CE/8856000_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/8856000/UKCA/8856000_UKCA.pdf

Bresser UK Ltd. • Suite 3G, Eden House, Enterprise Way, Edenbridge, Kent TN8 6HF, Great Britain

Contact Bresser GmbH
Gutenbergstraße 2 46414 Rhede · Germany
www.bresser.de
@BresserEurope
Bresser UK Ltd.
Suite 3G, Eden House
Enterprise Way, Edenbridge,
Kent TN8 6HF, Great Britain
· Errors and technical changes reserved.

References

• konsoleH :: Login
• Bresser | Downloads | Expand Your Horizon
• Bresser | FAQ | Expand Your Horizon
• Bresser | Ratgeber | Expand Your Horizon
• Bresser | BRESSER JUNIOR Mikroskop mit 40x-640-facher Vergrößerung | Expand Your Horizon

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