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Never, under any circumstances, look directly at the Sun through this device without a special filter, or look at another bright source of light or
at a laser, as this may cause PERMANENT RETINAL DAMAGE and may lead to BLINDNESS. You should ONLY observe the Sun with a professional
solar aperture filter that completely covers the front of the instrument. The front end of the finderscope must be covered with aluminum foil
or other non-transparent material to protect the internal parts of the telescope from damage. For safe solar observations we recommend using
filters with an optical density (OD) of 5.0. Such filters transmit only 0.001% of the sun's light, blocking the remaining 99.999%. Most reliable
solar filters are made of Baader AstroSolar film.
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Take necessary precautions when using the device with children or others who have not read or who do not fully understand these instructions. All
parts will arrive in one box. Be careful when unpacking it. We recommend keeping the original shipping containers. In the event that the telescope
needs to be shipped to another location, having the proper shipping containers will help ensure that your telescope survives the journey intact. Make
sure all the parts are present in the packaging. Be sure to check the box carefully, as some parts are small. Do not try to disassemble the device on
your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Do not touch the optical surfaces
with your fingers. To clean the device exterior, use only special cleaning wipes and special optics cleaning tools from Levenhuk. Do not use any
corrosive or acetone-based fluids to clean the optics.
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Protect the device from sudden impact and excessive mechanical force. Do not apply excessive pressure when adjusting focus. Do not overtighten the
locking screws. Store the device in a dry, cool place away from hazardous acids and other chemicals, away from heaters, open fire and other sources
of high temperatures. If you are not using the device for extended periods of time, store the objective lenses and eyepieces separately from it. Be
careful during your observations, always replace the dust cover after you are finished with observations to protect the device from dust and stains. Do
not use the device for lengthy periods of time, or leave it unattended in direct sunlight. Keep the device away from water and high humidity. When
using the microscope, try not to use it near flammable materials or substances (benzene, paper, cardboard, plastic, etc.), as the base may heat up
during use, and might become a fire hazard. Always unplug the microscope from a power source before opening the base or changing the illumination
lamp. Regardless of the lamp type (halogen or incandescent), give it some time to cool down before trying to change it, and always change it to a
lamp of the same type.
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The chemicals might be harmful to human health. Use only those specified in the user manual. Make sure that your child knows how to use with them
correctly. The workplace should be kept clean and tidy. Don't work with specimens in the kitchen near food you eat. The area should be well lit. You
also should have fast and convenient access to clean water. Find a separate bucket for waste. All liquids should be poured down the drain, not into the
sink. The kit includes everything needed for assembly, but if you need some additional tool you can use a basic set of standard instruments that almost
everyone keeps at home.
Care and maintenance (microscope, telescope and binoculars)
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Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one
time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to
battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and -).
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Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never attempt to
recharge primary batteries as this may cause leakage, fire, or explosion. Never short-circuit batteries as this may lead to high temperatures,
leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use.
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Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your
country laws.
Batteries safety instructions
Seek medical advice immediately if a small part or a battery is swallowed.
With Levenhuk LabZZ MTB3 Microscope you will make lots of interesting discoveries and create exciting memories! Remember
that following safety rules is absolutely necessary. In the kit you will find the microscope, as well as many useful accessories.
Everything in place? Check it together with your parents.
Welcome to the microworld!
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1.
2.
3.
Check the microscope scheme thoroughly.
Install batteries for illumination. Flip the microscope over and remove the cap from the battery compartment. Insert two AA
batteries (those are not the thinnest penlight batteries, but those that are a bit thicker). Insert the batteries according to
their polarity – make sure that the “+” sign on the battery matches “+” in the compartment (same goes for “-” signs). Put
the
cap
back
on
.
Don't hesitate to ask adults for help if you are not sure.
Place the microscope on the flat surface near the source of bright light (window or a lamp). Turn the mirror towards the
illumination source. You should see a bright light spot through the eyepiece. If illumination in your room is not enough, switch
on the built-in illumination by turning over the mirror.
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Now the microscope is ready for work.
Take a prepared microscope slide, place it on the stage and secure with holders.
Choose the objective by rotating the revolving nosepiece. The microscope comes with three objectives having different
magnifications (15x, 45x and 90x). Using these objectives with a 10x eyepiece, you can get 150x, 450x and 900x
magnifications. The longer the objective, the higher magnification it produces. Most observations are better performed with
lower magnification, so choose the shortest objective to start. You will hear a “click” when the objective is in place.
Slowly rotate the focusing knob so the objective is almost touching the slide. BUT! It shouldn't actually touch the slide as both
the slide and the objective may be damaged if it does. That's why you need to do everything very slowly and carefully. When
the objective is very close to the slide (but doesn't touch it!), look through the eyepiece and start to rotate the focusing knob in
the opposite direction very slowly until you see a clear image.
How to work with the microscope
CAUTION! Never direct the mirror towards the Sun, as it may ruin your eyesight and even cause blindness.
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The microscope kit includes:
microscope, 10x eyepiece, spare bulb, empty flask (3 pcs), slides and cover slips (3 pcs each), slide
stickers (3 pcs), plastic tools (scalpel, pipette, spatula, forceps, dissecting needle).
