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Home Training Tools Ltd. 2012
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12.
Fine focus:
The smaller fine focus knob is
coaxial with the coarse focus, which means
they turn on the same axis. This knob allows
more precise image resolving after the image
has been brought into focus with the coarse
focus knob.
13.
Illuminator:
The
illuminator
provides
necessary light underneath the stage with its
long-life, cool-bright LED bulb. Instructions for
changing the bulb are on page 6.
14.
Illuminator intensity control:
This control
adjusts the intensity of the light produced by
the illuminator. It should be in a low position
when turning the illuminator on or off. Use the
iris diaphragm to adjust the light for
contrast;
use the illumination intensity control to adjust
the light for brightness and intensity.
Operating Procedure
Now that you have an overview of each
component on your microscope, you can follow
this step-by-step procedure to get started using it.
Installing the Microscope Head
The microscope head is shipped in a
separate carton and will need to be installed.
Carefully remove the head from the packaging.
1. Loosen the lock screw located above the
nosepiece.
2. Set the head
firmly in place, making sure it’s
flush against the head support, and tighten
the lock screw just enough to hold the head in
place.
3. Rotate the head to desired position, and then
tighten the lock screw to hold it securely.
MI-5200BIN Model
The MI-5200BIN model comes with a
Seidentopf binocular head for enhanced image
examination and extended viewing comfort.
Using the Binocular Head
To best use this feature, you must set the
interpupillary distance to match the distance
between your
eyes’ pupils and adjust the diopters
to compensate for focusing differences between
your eyes. Each user must adjust it for his or her
own eyes. To do so, follow these steps:
1. Start by focusing a small specimen in the
center of the viewing field using the 10x
objective. The iris diaphragm should be in the
closed position.
2. Focus your eyes on the specimen.
3. Pull your eyes back from the eyepieces about
1”. In your peripheral vision you will see two
field view circles overlapping each other.
4. Open or close the distance between the
eyepieces by pulling them apart or pushing
them together until the two circles merge
together and appear as one circle. The
interpupillary distance is set correctly when
you see just one field view circle. Record the
settings so you can return to your adjustment
easily.
5. Turn the nosepiece until the lowest power (4x)
objective clicks into place.
6. Holding a card over your right eye (the eye in
front of the eyepiece with the diopter) bring
the specimen into focus for the left eye using
the coarse and fine focus controls.
7. Cover your left eye with a card and bring the
specimen into sharp focus for your right eye
by turning the knurled diopter band on the
right eyepiece. Do not use the coarse and fine
focus controls for this last step
– use only the
diopter adjustment.
Getting Started
1. Set your microscope on a tabletop or other flat
sturdy surface where you have plenty of room
to work. Plug the microscope’s power cord
into an outlet, making sure the excess cord is
Diopters
Interpupillary settings
Head support
Lock screw
