Swift M3500 SERIES, Manual

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MICROSCOPE COMPONENTS
ARM - the vertical column (attached to the base) which supports the
stage and contains the coarse and fine adjusting knobs and focusing
mechanism.
BASE
- the housing and platform of the instrument to which the arm is
attached. The base stands on rubber feet and contains the illuminator
assembly. The bulb replacement part number is printed on the underside
of the base.
COARSE FOCUS CONTROL
MECHANISM - this model is a stage focusing
model meaning the stage moves up or down by means of a brass rack and
steel pinion gear to bring the specimen into focus. The movement is
achieved by two large knobs on the sides of the arm. In order to prevent
gear damage, the focus control is equipped with a slip clutch that allows
slippage at both ends of the focusing range. The system is also furnished
with a tension control to prevent “stage drift”.
CONDENSER –
the condenser is mounted in the stage and it is used in
conjunction with the iris diaphragm. The function of the condenser is to
provide full illumination to the specimen plane and to enhance the
resolution and contrast of the object being viewed.
CORD HOLDERS
- A pair of half-circle brackets installed on the back of
the arm which are used to store the electrical cord.
DISC DIAPHRAGM
- The wheel-shaped disc attached to the underside of
the stage. It has circular openings, called apertures, and may be rotated
to align any of the apertures with the optical path.
EYEPIECES
- the upper optical element that further magnifies the
primary image of the specimen and brings the light rays in focus at the
eyepoint. The eyepiece has a calibrated POINTMASTER
® scale for taking
measurements.
FIELD CONDENSER
- A lens located in the light housing which intensifies
the light from the illuminator in the base.
FINE FOCUS CONTROL MECHANISM - the fine focusing knobs, located on
either side of the microscope, in front of and slightly lower than the