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15 

ELECTRICAL 

PROBLEM 

REASON FOR PROBLEM 

SOLUTION 

Light fails to operate 

Outlet inoperative. 

 

AC power cord not connected. 

 

Lamp burned out. 

 

Fuse burned out. 

 

Fuse burns out too soon. 

 

Fuse blows instantly when replaced. 
 

 

Incorrect lamp used improper voltage 
or base.

 

Have qualified service technician repair outlet 

 

Plug into outlet. 

 

Replace lamp. 

 

Replace fuse. 

 

Replace with proper fuse (Time delay). 

 

Unit has short, have qualified technician repair 
electrical short. 

 

Replace with specified lamp. 
 

Light burns out too soon 

The voltage is too high. 

Adjust intensity control to the minimum 
position before turning the power switch on. 

Light bulb burns out 
immediately 

Incorrect lamp used. 

Use proper lamp (12 volt 20 watt). 
Plug unit into proper outlet 120v or 220v 

Light flickers 

Lamp not properly inserted into socket. 

 

 

Lamp about to burn out. 

 

Fuse holder not locked into proper 
position. 

 

Loose connection at AC outlet. 

Properly insert lamp. 

 

Replace lamp. 

 

Properly install fuse holder. 
 

 

Have qualified service technician repair outlet.  

 

IMAGE QUALITY 

PROBLEM 

REASON FOR PROBLEM 

SOLUTION 

No image. 

Nosepiece not indexed properly. 
 

 

Light too bright 

Move revolving nosepiece until objective lens 
clicks into position. 

 

Adjust light intensity control to a lower 
position. 

Poor resolution. 
    (Image not sharp) 

Objective lens dirty. 

 

Eyepiece lens dirty. 

 

Slide upside down. 
 

 

Cover slip on specimen slides too 
thick. 

 

Too much light. 
 
 

 

Condenser lens dirty. 

 

Rack stop not set a proper position. 

Clean objective lens. 

 

Clean eyepiece lens. 

 

Turn specimen slide over (cover slip facing 
up). 

 

Use 0.17mm thick cover slip. 
 

 

Adjust light intensity control to a lower 
position. 
Iris diaphragm not properly adjusted. 

 

Clean condenser lens. 

 

Adjust rack stop. 

Spots in field of view. 
 

Eyepiece dirty. 

 

Specimen slide dirty. 

 

Condenser lens dirty. 

Clean eyepiece lenses. 

 

Clean slide. 

 

Clean lens of condenser. 

Uneven illumination of 
field.  

Nosepiece not properly indexed. 

 

Diaphragm not properly indexed. 

Revolve nosepiece into positive index stop. 

 

Adjust iris diaphragm to proper level. 

 

MECHANICAL PROBLEM 

 PROBLEM 

REASON FOR PROBLEM 

SOLUTION 

Does not stay in focus. 

Stage drops down  

Adjust tension adjustment knob. 

 

Summary of Contents for DC5-169 Series

Page 1: ...nstruments Inc 6508 Tri County Parkway Schertz Texas 78154 Phone 210 590 9010 Fax 210 590 1104 INSTRUCTIONS FOR DC5 169 Series DIGITAL COMPOUND BIOLOGICAL MICROSCOPE Copyright 11 4 2016 National Optic...

Page 2: ...Mark on side of eyepiece tube for indexing diopter reading Light intensity control knob Base Illuminator condenser Knobs controlling X and Y movement of mechanical stage Fine focus knob Coarse focus k...

Page 3: ...ntainer in case the microscope needs transporting to another location or shipped for repairs Components are packed within the container as indicated below A Microscope body with 1 25 N A Abbe condense...

Page 4: ...ted into binocular eyepieces B Rod at mid position pull or push rod until you feel a gentle click stop 100 of microscope image is directed to built in camera C Rod pulled to fully extended position 30...

Page 5: ...1 2 open 100x 1 2 to 3 4 open MAX G Changing magnification a Rotate revolving nosepiece to position 10x objective into optical path b This microscope has been parfocalized which allows changes from o...

Page 6: ...rument on its side taking care to avoid damage to the specimen slide holder located on top of mechanical stage b Remove 5ea cross head screws holding base plate c Carefully lay the base plate flat on...

Page 7: ...le contents containing the full help menu Motic Live Imaging Module PC Full Help Menu The full Live Imaging Module manual is accessible within the live Imaging main page To begin open the Motic Images...

Page 8: ...ging Module help file containing the full help menu MOTIC IMAGES SOFTWARE MAC Full Help Menu The full software manual for Motic Images is accessible within the software s main page To begin open the M...

Page 9: ...re will allow you to view capture annotate and save your images For further assistance in using the Motic Images 3 0 software please refer to the Motic Help files These files will help explain the fun...

Page 10: ...ccess the Motic Images Live Imaging help menu click on Help located at the top left hand side of the screen Once the Help window open you will find the help guide within MODEL 926 PHASE CONTRAST SET I...

Page 11: ...ing knob to move microscope stage platform to its highest position 2 Remove objective dust caps from the revolving nosepiece 3 Screw objective lenses into nosepiece making certain to mount them in con...

Page 12: ...turret condenser until it is centered to the larger dark annulus located in the objective Both rings must be concentric to each other to achieve maximum performance Make sure that the knurled head cen...

Page 13: ...amera adapter Dirt on the protection filter of the camera sensor For Eyepieces with reticules Dirt on the outer or inner reticle glass Objectives are the optical component of the microscope that requi...

Page 14: ...e cloth moistened with a low graduation of alcohol If you face any problems related to the maintenance of your microscope please contact us Our technicians will gladly help you solve your maintenance...

Page 15: ...ave qualified service technician repair outlet IMAGE QUALITY PROBLEM REASON FOR PROBLEM SOLUTION No image Nosepiece not indexed properly Light too bright Move revolving nosepiece until objective lens...

Page 16: ...st objective lens 1 25 N A 704 160P DIN 4X Plan objective lens 0 10 N A 710 160P DIN 10X Plan objective lens 025 N A 740 160P DIN 40X Plan objective lens 0 65 N A 799 160P DIN 100X Plan objective lens...

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