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9.  Adjust fine focus controls until specimen is in sharp focus. 
 
10.  Changing magnification. 
 

a.  Magnification is changed by rotating objective turret until a different objective lens is moved into optical path.  

Always turn turret until you hear the “click”, indicating that lens is properly indexed.  Otherwise, you will not be 
able to see anything when looking through the microscope. 

 
b.  Standard lenses provided with your microscope are a widefield 10x eyepiece, 4x, 10x, and 40x objectives.  See 

chart below for specifications on objectives. 

 

Objective Specification Chart

 

 

Objective 

N.A. 

Color Code 

Ring 

Field of 

View 

Working 

Distance 

Magnification with 

WF10X eyepiece 

4X 

0.10 

Red 

4.5mm 

10.3mm 

40X 

10X 

0.25 

Yellow 

1.8mm 

8.5mm 

100X 

40X retractable 

0.65 

Blue 

0.45mm 

0.5mm 

400X 

 
 

c.  Also note that each objective has a color ring, which permits you to instruct changes in magnification by referring 

to an easily observed color rather than to a number. 

 

d.  The microscope has been parfocalled at the factory, which allows easy change from one magnification to another, 

requiring little or no adjustment of the fine focus knobs. 

 
e.  As magnification is increased, the field of view (area of specimen seen through the microscope) will decrease.  

That is why it is easier to find the specific area of interest on the specimen by starting with the lowest 4x objective 
lens, before increasing magnification with the 10x or 40x objective lens. 

 
f. 

NOTE:  Care must be taken when rotating the 40x objective into place.  This lens has a spring retractable 
mechanism which retracts slightly into its housing if the front of the lens strikes the specimen slide.  With fine 
focus adjustment at mid-range, the rack stop has been adjusted at the factory to assure 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 the 40x lens too quickly or carelessly could cause damage 
to the front lens element or to the slide. 

 
g.  Do not let the front lens element come into contact with a wet slide surface, as prolonged contact with any 

moisture could damage the lens.  If lens is exposed to moisture, promptly wipe with soft tissue to remove 
moisture. 

 

WIFI CAMERA OPERATION 
 

1.  Powering the WiFi camera 

 

a.  The built-in WiFi camera is powered through the USB port located behind the camera housing of the microscope.  

Supplied with your microscope is a USB (5V) wall plug power adapter and USB cable.  First plug the adapter into 
the A/C wall power outlet.  Then insert the flat end of the USB cord into the adapter and the other square end into 
the USB port behind the camera housing.   

b.  As power is being established, you will notice a blue LED flashing, located in front of the camera housing.  Once 

the blue LED remains solid, the WiFi camera is ready to be used.  

 
2.  Connecting to Android or Apple device 

 

a.  The built-in WiFi camera in this unit performs much like a wireless router.  You will first need to locate the wireless 

signal with your Android or Apple device.  This is usually done through the settings feature of your device (please 
refer to your devices manual for further instructions).  Once you have located the signal (usually labeled MC-WiFi-
….), you will need to connect using the default password of 12345678.  This cannot be changed except by the 
factory.  Any attempt to do so will render your WiFi camera inoperable and will void your warranty.   

b.  Once the connection has been established, you can begin using the WiFi camera through the MotiConnect App 

(automatic) or through your web browser, using the following address:  

http://192.168.1.151:8080

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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