RMM2 ROLLSCOPE MICROSCOPE
UNITRON
®
73 Mall Drive, Commack, NY 11725 • 631-543-2000 • www.unitronusa.com
11
ADJUSTMENTS AND CARE OF THE MICROSCOPE
Adjusting the Coarse Focus Tension
The tension of the coarse focusing controls have been factory adjusted. To change the tension, grasp
both coarse focusing knobs, one in each hand, turn the knobs in opposing directions. Turning the knobs
in one direction increases the tension; turning the knobs in opposite directions decreases the tension.
Intensity Switch
The life of the halogen filament bulb depends upon the intensity of the illumination being used. To
prolong the life of the bulb, use at low intensity unless a higher intensity is required.
Bulb Replacement
Unplug the microscope from its electrical source.
Loosen the locking screw that connects the socket
to the illuminator. Gently, but firmly, pull out the old bulb. Insert a new bulb into the socket using caution
not to touch the glass envelope or bend the pins on the bulb. Follow the preceding instructions for bulb
alignment instructions.
Care of Optics
Objectives and eyepieces should always be scrupulously clean. When not in use, the microscope should
be covered with the dust cover. The eyepiece should always be in the microscope to eliminate the
possibility of dirt or dust from entering the vertical tube and falling onto the back lenses of the objectives.
Should the optics require cleaning, only use the finest grade of soft camera lens tissue. If foreign matter
or stubborn dirt has adhered to a lens surface, a small amount of xylene, applied sparingly, can be
applied with lens tissue. An alternate recommendation is “coated lens cleaner”.
Under no circumstance should alcohol, benzene or similar strong solvents be used that would
damage the lens coating and cement.
Spots which are superimposed on the field of view and which rotate when the eyepiece is turned are
caused by dust specks on the eyepiece lenses or reticle. If the image appears cloudy or hazy, check the
front lens of the objective and the front lens of the eyepiece for fingerprints or accumulation of foreign
material. If dust accumulates on the back lens of an objective, remove the objective and use a small
hand syringe or aspirator to dislodge the dust.
Under no circumstances should the eyepiece or objectives be disassembled.
Spots visible in the field of view which rotate when the complete illuminator-condenser unit is turned are
caused by dust on the condensed lenses. If required, the lenses can be cleaned using a soft cotton
swab around which a lens tissue has been wrapped.
