4
Microscope Preparation
Open packing box carefully, and lift microscope out of shipping
container. Remove all packing materials on eyepieces, stage, and
illuminator.
Check the coarse focus tension. The knobs are oversized, designed
for better gripping. The coarse (larger) focus knob should turn easily to
change the focus. The stage should move up and down when either the
coarse or fine adjust knobs are turned. Watch the up-down motion of the
stage; it should not drift or slip on its own.
Check the stage stop feature. The stage stop is a knurled thumb
screw with a lock nut found on the main frame, just behind the stage. To
check the stage stop, place a prepared slide in normal position for
viewing. Place the 40x objective into viewing position and move the
coarse focus knob until the object and stage are as close together as they
can be WITHOUT TOUCHING. Look through the eyepiece at the slide,
and get the specimen into focus. The objective should be very close to
the slide, but not touching. If the stage stop is not set correctly, loosen the
locking nut and thumb screw, and reset the stage stop, tightening both
when correct position is attained.
Microscope Use and Instructions
Visit the Ken-A-Vision Web site http://www.ken-a-vision.com/pdf/
MicroscopePrimer.pdf, for a Microscope Primer on general microscope
usage.
Power Switch
Plug your microscope into a power source. This microscope has an
on/off switch at rear right of the microscope. On the left side of the
Microscope is a rheostat for adjustment of light intensity. Be sure it is
turned up once microscope is on.
Rotating Circular Stage
Your Ken-A-Vision Comprehensive Polarizing Scope comes
equipped with a 360-degree rotatable circular stage for performing
orientation studies in polarized light. This stage has a goniometer divided
into 1-degree increments.
It is important that the stage is centered within the optical axis. Find
the two centering knobs located on the front of the stage, sticking out
about 45 degrees from the center line. To center the optical axis, while
looking through the microscope eyepiece, first reduce the iris diaphragm
to its minimum level. Using the adjusting centering knobs while looking