Meade Instruments Corporation
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Microscope Instruction Manual
 Meade Model 9200

Meade Model 9200 Microscope
Introduction.

The Meade Model 9200 Microscope is a precision instrument enabling startling views of the microcosmic world with its all-metal construction, fine glass optical elements, and precision adjustments.

Your Meade microscope will be your companion in a hidden realm of unimagined detail and wondrous structures within everyday objects from crystalline structures in minerals to a veritable zoo of microorganisms in a drop of pond water.

Unpacking and Assembly.

Your Meade Model 9200 Microscope comes to you almost entirely pre-assembled with only the Illuminating Mirror left to be installed.

To complete the assembly, carefully remove the Illuminating Mirror (1) from the foam packaging and insert its mounting post in the hole of the microscope base, centered under the microscope Stage (2).

Using the Microscope.

In any microscope, the objective lens magnifies the illuminated specimen on the microscope Stage, and then is further magnified by the microscope's eyepiece. In this way the image can be magnified many times. The Meade Model 9200 Microscope offers magnifications of 40X, 100X, and 400X.

To get started, use a prepared microscope glass slide, and place it on the center of the microscope Stage over the Condensing Lens (3). Clamp it down with the Stage Clips (4) that are on either side of the aperture of the Stage.

Aim the Illuminating Mirror at a nearby light source, look through the Eyepiece (10) and tilt the Mirror until illumination is seen through the Eyepiece. Turn the 6-Aperture Rotary Diaphragm (5) of the Stage so that the largest opening (position 8) is placed under the Condensing Lens aperture. This will insure that the maximum amount of light will illuminate the specimen.

Always start observing using the lowest magnification with the microscope. In the case of the Meade Model 9200, use the 4X Objective Lens (6) by rotating the Objective Lens Turret (9) so that the 4X Objective Lens is aiming at the center of the Stage (when it is in the proper position it will click into place). The 4X Objective Lens will give a 40X (40 power) view with the 10X Eyepiece. Final Power is calculated by multiplying the Objective Lens Power by the Eyepiece power (e.g., 4 X 10 = 40).

Focus the microscope by slowly turning one of the two Focusing Knobs (11) until an image forms in the Eyepiece. Slowly racking the focus back and forth can sometimes reveal hidden structure at different depths of the specimen being observed.

If the image appears too bright, rotate the 6-Aperture Rotary Diaphragm until a comfortable view is seen. You can choose between aperture positions 8, 7, 5, 4, 3 or 2. If the image is too dim, use the largest aperture and increase the brightness of the light source being reflected by the Illuminating Mirror.

To increase magnification, rotate the Objective Lens Turret to center the 10X Objective Lens (7) over the specimen for 100X, or the 40X Objective Lens for 400X. When using higher magnifications focusing becomes more critical and the objective lens will come closer to the specimen in order to reach focus. Use care so that the Objective Lens does not come in direct contact with the specimen when achieving a final focus.

Maintenance.

As with any quality instrument, your Meade microscope should be stored in a cool, dry place free of dust, acid and fumes.

The lenses and Illuminating Mirror of your Meade microscope should be cleaned as infrequently as possible. Tiny particles of dust on the surface of the lenses or the Illuminating Mirror causes negligible loss of image quality. In all cases avoid touching the optical and mirror surfaces, and never disassemble the optical parts of the microscope.

When lens or mirror cleaning does become necessary, use a camel's hair brush or compressed air gently to remove dust. If the microscope is covered with the included plastic bag between uses, cleaning of the optics will rarely be required.

Specifications.

Magnifications: 40X, 100X, and 400X
Objectives: 4X, 10X, and 40X
Eyepiece: 10X
Focuser: Stage Type
Stage Size: 89mm X 92mm
Illumination: Substage Concave Mirror
Viewing Angle: 40 degrees
Weight: 2 lbs.

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