User Manual
Binocular Compound
LED Microscope
Model M827TL Series
MicroscopeNet.com
Table of Contents
i. Caution .................................................................................................... 1
ii. Care and Maintenance............................................................................. 2
2 Components Illustration ........................................................................... 3
3 Installation ............................................................................................... 4
4 Operation ................................................................................................. 6
5 Specifications ........................................................................................ 10
6 Optional Parts ........................................................................................ 11
7 Troubleshooting Guide .......................................................................... 13
8 Darkfield Condenser Installation and Operation Instructions .................. 15
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i. Caution
1. Open the carton carefully with a knife or paper cutter. Find the “UP” sign and place
the Styrofoam container on the side that makes the arrow upward. If the “UP” sign
is missing, please open the Styrofoam container gently to prevent any accessory,
i.e. objectives or eyepieces, from dropping and being damaged.
2. Do not discard the molded Styrofoam container. The container should be retained
should the microscope ever requires reshipment.
3. Keep the instrument out of direct sunlight, high temperature or humidity, and dusty
environments. Ensure that the microscope is located on a smooth, level and firm
surface.
4. If any specimen solutions or other liquids splash onto the stage, objective or any
other component, disconnect the power cord immediately and wipe up the spillage.
Otherwise, the instrument may be damaged.
5. All electrical connectors (power cord) should be inserted into an electrical surge
suppressor to prevent damage due to voltage fluctuations.
6. Confirm that the input voltage indicated on your microscope corresponds to your
line voltage. The use of a different input voltage other than that as indicated will
cause severe damage to the microscope.
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ii. Care and Maintenance
1. Do not attempt to disassemble any component including eyepieces, objectives or
focusing assembly.
2. Keep the instrument clean; remove dirt and debris regularly. Accumulated dirt on
metal surfaces should be cleaned with a damp cloth. More persistent dirt should be
removed using a mild soap solution. Do not use organic solvents for cleansing.
3. The outer surface of the optics should be inspected and cleaned periodically using
an air stream from an air bulb. If dirt remains on the optical surface, use a soft cloth
or cotton swab dampened with a lens cleaning solution (available at camera
stores). All optical lenses should be swabbed using a circular motion. A small
amount of absorbent cotton wound on the end of a tapered stick makes a useful
tool for cleaning recessed optical surfaces. Avoid using an excessive amount of
solvents as this may cause problems with optical coatings or cemented optics or
the flowing solvent may pick up grease making cleaning more difficult. Oil
immersion objectives should be cleaned immediately after use by removing the oil
with lens tissue or a clean, soft cloth.
4. Observe the specimen with the 4X, 10X and 40X objectives in order, then observe
the specimen with the 100X objective. Apply the immersion oil on the slide cover
with the 100X objective. Do not let the immersion oil to contact with the dry
objectives lens (especially the 40X). Clean the dry objective lens using the camera
cleaning kit if the immersion oil is on the dry objectives lens. Clean the 100X
objective lens first using the camera cleaning kit after observing the specimen with
the 100X objective, then clean the specimen. More persistent dirt should be
removed using a little bit alcohol. Do not use organic solvents for cleansing.
5. Store the instrument in a cool, dry environment. Cover the microscope with the
dust cover when not in use.
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1 Components Illustration
1
Eyepiece
9
Microscope Base
17
Brightness Intensity Dial
2
Diopter Ring
10
Viewing Head
18
Power Switch
3
Eyepiece Tube
11
Head Thumb Lock Screw
19
Focus Stop Lever
4
Nosepiece
12
Microscope Body
20
Condenser Lock Thumb Knob
5
Objective
13
Focus Tension Ring
21
Condenser Focus Knob
6
Slide Holder
14
Coarse Focus Knob
22
Abbe Condenser
7
Mechanical Stage
15
Fine Focus Knob
23
Color Filter Holder
8
Light Collector
16
X-Y Stage Moving Knobs
24
Iris Diaphragm Lever
1 2 3
4
5 6 7
8
9
10
11
12
13
14
15
16
17
18
19
21
22
23
24
20
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2 Installation
2.1 Installation of the binocular viewing head
1) Loosen the head thumb lock screw on the top of the microscope body and remove
the plastic cover on the top.
2) Remove the cap on the dovetail of the binocular viewing head.
3) Seat the dovetail completely of the viewing head into the socket on the top of the
microscope body and tighten the head thumb lock screw.
Caution:
Do not release the viewing head from your hand grip until you are sure the viewing
head is installed securely.
2.2 Installation of the eyepieces
1) Remove the protective caps from the eyepiece tubes.
2) Insert the eyepieces into the eyepiece tubes.
2.3 Installation of the objectives
1) Adjust the coarse focus knob until the mechanical stage is at its lowest position.
2) Turn the caps counter-clockwise to remove them from the nosepiece.
3) Take the objectives out from the plastic cases and turn each one clock-wise into the
holes on the nosepiece. Install the 4X objective into the nosepiece first. Then in a
counter-clockwise direction, rotate the nosepiece and install each succeeding higher
magnification objective as shown in Fig. 1.
Note:
Inspect the objectives frequently for dirt or oil; clean if necessary.
Use the 10X objective to initially focus the image of your specimen.
When changing the objective magnification, rotate the objective nosepiece until
you hear a “click” sound or have a clear "in position" feeling. This ensures the
objective is centered in the optical light path.
2.4 Installation of the glass filter
1) Swing out the color filter holder under the condenser.
2) Place the filter into the holder as shown in Fig. 2, swing the holder in.
Fig.1
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