3
Changing the upper illumination lamp
Loosen the locking screw on the upper illumination housing and remove the light socket from
within. Replace the old lamp with a new one and put the light socket back. Retighten the locking
screw.
Changing the fuse
Fuse box is located on the bottom of the microscope base. Remove the cover and replace the old
fuse with a new one.
Care and maintenance
Never, under any circumstances, look directly at the Sun, another bright source of light or at a laser
through this device, as this may cause PERMANENT RETINAL DAMAGE and may lead to BLINDNESS.
Take necessary precautions when using the device with children or others who have not read or who do
not fully understand these instructions.
After unpacking your microscope and before using it for the first time check for integrity and durability
of every component and connection.
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.
Protect the device from sudden impact and excessive mechanical force. Do not apply excessive pressure
when adjusting focus. Do not overtighten the locking screws.
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.
Abrasive particles, such as sand, should not be wiped off lenses, but instead blown off or brushed away
with a soft brush.
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.
Be careful during your observations, always replace the dust cover after you are finished with
observations to protect the device from dust and stains.
If you are not using your microscope for extended periods of time, store the objective lenses and
eyepieces separately from the microscope.
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.
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.
Always use the power supply with the proper voltage, i.e. indicated in the specifications of your new
microscope. Plugging the instrument into a different power outlet may damage the electric circuitry of
the microscope, burn out the lamp, or even cause a short circuit.
Seek medical advice immediately if a small part or a battery is swallowed.
Battery safety instructions
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 -).
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.
Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning.
Do not disassemble batteries.
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