Swift M2250 Series, User And Care Manual

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The eyepiece(s) may be cleaned in the same manner as the objectives,
except in most cases optical cleaner will not be required. In most
instances breathing on the eyepiece to moisten the lens and wiping dry
with a clean lens tissue is sufficient to clean the surface. Lenses should
never be wiped while dry as this will surely scratch or otherwise mar the
surface of the glass.
The finish of the microscope is hard epoxy and is resistant to acids and
reagents. Clean this surface with a damp cloth and mild detergent.
Periodically, the microscope should be disassembled, cleaned and
lubricated. This should only be done by a qualified, authorized
technician.
DUST COVER AND STORAGE – All microscopes should be protected from
dust by a dust cover when in storage or not in use. A dust cover is the
most cost-effective microscope insurance you can buy. Ensure that the
storage space is tall enough to allow the microscope to be placed into
the cabinet or onto a shelf without making undue contact with the
eyepieces. Never store microscopes in cabinets containing chemicals,
which may corrode your microscope. Also, be sure that the objectives
are placed in the lowest possible position and the rotating head is turned
inward and not protruding from the base. Microscopes with mechanical
stages should be adjusted toward the center of the stage to prevent the
moveable arms of the mechanical stage from being damaged during
storage in the cabinet.
BULB REPLACEMENT - To prolong the life of the bulb you should always
turn off the unit when not in use.
NOTE: Use a piece of lens paper instead of your bare hand when
touching new bulbs. The oil from your hand will contaminate the
bulb’s glass envelope and cause it to fail prematurely.
(M2251B) To replace a bulb, you must first unplug the microscope and
remove any slides on the stage. Carefully turn the microscope on its side,
unscrew and open the hinged cover. The cable tie must be cut and
removed in order to remove the bulb. Make sure the bulb is cool and
remove it by carefully unscrewing the tungsten bulb. Install the new bulb
into the socket. Close the hinged cover and tighten the screw to hold the
hinged cover closed.
(M2251C, M2251CL) To replace an LED, you must first unplug the
microscope, turn the power off and remove any slides on the stage. Use