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10.  ILLUMINATION    Built-in substage electric LED illuminator provides constant, reliable, pre-focused illumination equal 

to a 20-watt tungsten bulb.   

 
11.  CAMERA HOUSING   Built-in WiFi camera with USB port on back for powering camera only. 

 
ASSEMBLY

 

 
Loosen 0.90mm socket set screw located in eyepiece tube and remove eyepiece dust cap.  Insert WF10x eyepiece into 
eyepiece tube and tighten 0.90mm socket screw to prevent removal of eyepiece. 
 

MICROSCOPE OPERATION 

 
1.  Place microscope directly in front of you in a manner which permits you to comfortably look into the eyepiece.  Note 

that the head of microscope rotates 360

º

, permitting you to operate the microscope from the front or from the back, 

whichever is most convenient for you.  It also permits convenient sharing of microscope by more than one user, by 
simply rotating head, without needing to move entire microscope.   

 
2.  Assure that light is available for illuminating the specimen. 
 

a.  Your microscope has special LED illumination that is powered by 3 rechargeable AA nickel metal hydride 

batteries (supplied).  These batteries may be recharged, as required, using the recharger (supplied).  Each set of 
batteries may be recharged approximately 500 times before replacing, and each charge will provide up to 50 
hours of microscope operation.  The LED component (bulb) will last for up to 50,000 hours before replacement is 
required. 

WARNING 

 

DO NOT USE regular AA alkaline batteries.  Use of other than rechargeable AA nickel metal hydride 
batteries could result in batteries exploding during recharge.  ONLY USE THE SUPPLIED SWITCHING 
BATTERY RECHARGER WITH AUTOMATIC “TRICKLE CHARGE”. 

 

b.  It is recommended that you charge the batteries before initial use and after prolonged storage as the batteries 

may have discharged.  Plug output cord from battery charger into DC recharging socket located on back of 
microscope base.  Your automatic switching recharger operates on 100 to 240 volts AC 50/60 Hz. Plug recharger 
into your AC wall outlet.  Battery recharger is also equipped with an automatic “trickle charge” feature, the red 
LED indicator lamp located on recharger will be illuminated when batteries are receiving maximum charge.   After 
batteries are charged, the red LED indicator lamp will turn to green and charger automatically switches to “trickle 
charge”.   The charger can be left plugged in, but for safety reasons it is a good idea to disconnect the charger 
from the AC wall outlet and the output cord from recharging socket after 12 hours.  Batteries and charger may feel 
warm when charging, and unplugging the recharger is a safety precaution. 

 

Note that your microscope can be used during recharging.  

Simply turn “on/off” switch on back of 

microscope base to “on” position and proceed as follows. 

c.  In case of equipment malfunction, see troubleshooting procedures located at the back of this manual. 

 
3.  Rotate coarse focus knobs to move stage down (away) from objective lens as far as possible. 
 
4.  Place specimen slide, cover slip facing up, on stage with specimen centered over condenser lens in middle of stage. 
 
5.  Turn rheostat (dimmer) control in direction to reduce illumination brightness to about mid-point. Normally, brightness 

will need to be reduced as magnification is reduced, and increased as magnification is increased.  Experiment with 
this adjustment until optimum resolution and contrast of specimen is obtained. 

 
6.  Rotate disc diaphragm until largest aperture is positioned beneath condenser in center of stage. 
 
7.  Turn the objective turret until the 4x (smallest) objective lens “clicks” into position in the optical path.  Note that each 

time you change from one objective lens to another you should turn the turret until you hear the “click”, which 
indicates that the lens is properly indexed in the optical path. 

 
8.  While looking through the eyepiece, rotate coarse focusing knobs until specimen comes into focus. If image does not 

appear in field of view, move specimen slide slightly until image appears in field of view. 

 

Summary of Contents for DCX-205-RLED

Page 1: ...FOR MODEL DCX 205 RLED COMPOUND BIOLOGICAL MICROSCOPE WITH WIFI CAMERA Manual for microscope and WiFi camera operation only Microscope serial number This number is on a label located under the base o...

Page 2: ...single control stage clips Condenser lens Stage Illuminator field lens housing Base Tension adjustment Coarse focus knob Fine focus knob Rheostat control Safety rack stop set screw Disc diaphragm Eyep...

Page 3: ...ction of this manual 4 If you would like to connect the WiFi camera to a wireless enabled laptop or computer go to the National Optical website On the website you will need to register your product fi...

Page 4: ...g recharger operates on 100 to 240 volts AC 50 60 Hz Plug recharger into your AC wall outlet Battery recharger is also equipped with an automatic trickle charge feature the red LED indicator lamp loca...

Page 5: ...sure the 40x lens will clear the thickness of a normal specimen slide and cover slip However if the rack stop has been improperly adjusted or if using a thicker than normal slide or cover slip moving...

Page 6: ...as little pressure as possible Avoid wiping dry lens surface as lenses are scratched easily If excessive dirt or grease gets on lens surfaces a small amount of Windex can be used on a cotton swab or...

Page 7: ...ope while the recharger is fully engaged b Replacing batteries Your microscope includes 3 rechargeable AA nickel metal hydride batteries These may be recharged up to 500 times but if you observe that...

Page 8: ...epiece lenses Too much light Adjust diaphragm Spots in field of view Eyepiece or condenser lens dirty Clean lens Specimen slide dirty Clean slide No WiFi signal No power to the camera Make sure blue L...

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