Bresser 300X Bedienungsanleitung

Wichtige Informationen für deine Eltern • Important information for your parents to read

Important pour tes parents • Belangrijk voor je ouders • Informazioni importanti per i genitori

Importante para tus padres • Важная информация для родителей

300X-1200X

MIKROSKOP

MICROSCOPE

Operating instructions

Art.No. 91-18100

Operating instructions .......................................... 8

(EN) WARNING:

Choking hazard—This product contains small parts that could be swallowed by children.

This poses a choking hazard.

1* 1*

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.

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 eye-

piece (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’.

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.

Parts overview

1. Eyepiece

2. Focus knob

3. Objective turret

4. Stage

5. Mirror

6. Electronic light source

7. Base with battery compartment

8. Rubber base

9. Microscope arm

10. Colour-ﬁlter disc

11. Prepared Slides

12. Cover Plates

13. Blank Slides

14. Petri dish

15. Micro projector

16. Replacement bulb

17. 3X magnifying glass

18. Settling cylinder

19. Reservoir

20. Shrimp-farming accessories

21. Microscope instruments

22. Micro-slicer

23. Hatchery

3. 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 speci-

men. 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 mag-

nification. 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.

4. Observation (electronic light source)

To use the electronic light source (6), you need to install two 1.5-volt batteries in the base of the mi-

croscope (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 eye-

piece 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 (16) 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 a good illumination of the

picture. Therefore, always start your experiments with a low magnification.

Projector

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 speci-

men. 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.

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.

Disposal

Dispose of the packaging materials properly, according to their type, 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 sepa-

rately 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.

A D ?

1battery contains cadmium

2battery contains mercury

3battery contains lead

Warranty and warranty term extension

The warranty term is two years from the date of purchase. Please keep your proof of purchase. Register

at www.bresser.de/warranty and ﬁll out a brief questionnaire to get your warranty term extended to

ﬁve years. Registration must be completed within three months of purchase (date of receipt) to validate

the warranty. If you register thereafter, the warranty term will not be extended.

If you have problems with your device, please contact our customer service ﬁrst. Do not send any prod-

ucts without consulting us ﬁrst by telephone. Many problems with your device can be solved over the

phone. If the problem cannot be resolved by phone, we will take care of transporting your device to be

repaired. If the problem occurred after the warranty ended or it is not covered by our warranty terms,

you will receive a free estimate of repair costs.

Service Hotline: +49 (0) 2872 - 80 74-210

Important for any returns:

Please make sure to return the device carefully packed in the original packaging to prevent damage

during transport. Also, please enclose your receipt for the device (or a copy) and a description of the

defect. This warranty does not imply any restriction of your statutory rights.

Your dealer:................................................ Art. No.:.....................................................

Description of problem: .........................................................................................................

..........................................................................................................................................

Name: .......................................................

Street: .......................................................

City/Postcode:............................................

Telephone: .................................................

Date of purchase:........................................

Signature: ..................................................

ANL9118100MSP0714NG

Bresser GmbH

Gutenbergstr. 2 · DE-46414 Rhede

www.bresser.de · info@bresser.de

NATIONAL GEOGRAPHIC and Yellow Border Design

are trademarks of the National Geographic Society.

Visit our website:

www.nationalgeographic.com

Irrtümer und technische Änderungen vorbehalten.

Errors and technical changes reserved.

300X-1200X

MIKROSKOP

MICROSCOPE

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