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2.

 

Installation  

2.1  Installation of the digital binocular viewing head 

1)  Loosen the head lock thumb 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 digital binocular viewing head. 
3)  Seat the dovetail of the viewing head into the socket on the top of the microscope 

body and tighten the head lock thumb 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. 

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 Replacing 

the 

fuse 

 

1)  Turn off the power switch and disconnect the power cord. 
2)  Find the fuse holder at the rear bottom of the microscope body. 
3)  Pry out the fuse holder gently with a flat head screwdriver. 
4)  Replace the old fuse with a new one, and then insert it back in. See 

Fig. 1

 

 
 
 
 
 
 
 

2.5  Installation of the glass filter 

1)  Swing out the color filter holder under the condenser.   

2)

  Place the filter into the color filter holder as shown in 

Fig. 2

, swing the holder in. 

 

Fig.1

Fuse Holder

Fuses 

Summary of Contents for MD8211E30

Page 1: ...User Manual Digital Compound Binocular LED Microscope Model MD8211E30 MicroscopeNet com...

Page 2: ...Table of Contents i Caution 1 ii Care and Maintenance 2 1 Components Illustration 3 2 Installation 4 3 Operation 6 4 Specifications 8 5 Troubleshooting Guide 9...

Page 3: ...rface 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...

Page 4: ...ally 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 sh...

Page 5: ...bs 3 Eyepiece Tube 10 USB Cable 17 Power Switch 4 Viewing Head w Built in Camera 11 Head Lock Thumb Screw 18 Brightness Intensity Dial 5 Objective 12 Nosepiece 19 Condenser Lock Thumb Screw 6 Slide Ho...

Page 6: ...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 eac...

Page 7: ...e Fig 3 a 3 Open the board and find the LED lamp See Fig 3 b 4 Loosen the 2 screws and unplug the LED connector 5 Replace the dead LED lamp with a new one 6 Tighten the 2 screws and plug in the LED co...

Page 8: ...cimen is close to the objective 2 Turn the coarse focus knob until the specimen is in focus Then use the fine focus knob to obtain a sharp image You may now switch to another magnification objective 3...

Page 9: ...adjusted to smaller size the contrast will be increased and the depth of field will be increased as well Turn up the intensity of the light if the image is too dim 3 8 Adjusting focus knob tension Th...

Page 10: ...0 17 spring 40X 0 65 160 0 17 spring Condenser Abbe NA 1 25 w iris aperture diaphragm and filter holder Rack and pinion focus adjustment Focus Mechanism Coaxial coarse and fine focusing knobs on both...

Page 11: ...7mm slide cover Slide cover is too thick or thin Use a slide cover of the appropriate thickness 0 17mm Slide may be upside down specimen at the bottom Turn slide over so the cover glass faces up Diopt...

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