This unit employs a coarse/fine coaxial focusing mechanism. Do not turn the left/right coarse/fine focusing knob in
the opposite direction. When the objectives lifting device reaches the limit of motion, do not continue to turn the
coarse focusing knob, otherwise the focusing mechanism may be damaged.
8.
Storage place
This unit is a precision optical instrument, and improper operation or storage may cause damage or
its precision may be adversely affected. Consider the following when selecting a storage place:
※
Avoid placing the unit under direct sunlight, directly under interior lighting or any other bright place.
※
A suitable operating environment is designated at a temperature of 5°C-35°C, and relative humidity of 20%-80% (at
25°C). Do not expose this unit to high temperatures, dampness or dust for a prolonged period of time, otherwise mist or
mold may develop or dust may deposit on the lens, thus cause damage to this unit and shortening its life.
9. Installation of bulb
Do not touch the glass surface of the bulb directly with bare hands. When mounting the bulb, wear
gloves or wrap it with cotton material.
※
Wipe off any dirt on the surface of the bulb with a clean cotton fabric dipped in alcohol. If the dirt is not
thoroughly removed, it would etch the surface of the bulb weakening its brightness and shortening its life.
※
Mount the bulb with care to avoid slipping off or injuries to your fingers.
※
When replacing the bulb, make sure its contact is intact. If its contact is damaged, the bulb may be disabled or
short-circuited.
※
When replacing the bulb, the feet should be inserted into the holder as deeply as possible. If the feet are not
tightly inserted, the bulb may go out or short circuit.
10. Instrument handling
This precision optical instrument is heavy and should be handled with care. Strong impact and
rough handling are strictly prohibited, it may cause damage to this unit.
11. Environmental protection
Please dispose the wastes from the packaging and operation of this unit by category such as
cartoon, foam, plastic, bulb and etc. Do not discard the damaged mercury lamp carelessly in order
to avoid creating environmental poll
Caution
!
Caution
!
Caution
!
Summary of Contents for MF53-N
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