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a) Carefully lay instrument on its side, taking care to avoid damage to the specimen slide holder located on
top of mechanical stage.
b) Loosen large chrome locking screw located on hinged door of illuminator base.
c) Swing door open to expose the halogen lamp.
d) Using a tissue or cloth to gently grasp the halogen bulb, pull straight out of lamp socket.
e) Your microscope requires a 12 volt, 20 watt halogen bulb, available from the dealer from which you
purchased your microscope. This is a common microscope bulb, Osram #64425.
f)
Make certain that new bulb is clean, as fingerprints on bulb can affect light transmission. Grasping bulb
gently with a tissue or cloth, insert pins straight into lamp socket.
g) Carefully clean lamp to assure that it is clean and free of all fingerprints.
h) Close hinged door and tighten locking screw.
TROUBLESHOOTING
PROBLEM
Light fails to operate.
Lamp flickers
Image does not focus
Image does not remain in focus
Poor resolution
(image not sharp)
Spots in field of view.
***Spots in field of view can also result from dirt on inside of eyepiece. It is recommended that you have
service technician clean inside of lens.
OPTIONAL ACCESSORIES AND PARTS:
#610-160
WF10X Eyepiece
#610-160R
WF10X eyepiece w/reticle, 10mm/100div.
#704-160
DIN 4X objective lens, 0.10 N.A.
#710-160
DIN 10X objective lens, 0.25 N.A.
#740-160
DIN 40X objective lens, 0.65 N.A.
#799-160
DIN 100X 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, 1.25 N.A.
REASON FOR PROBLEM
Outlet inoperative.
AC power cord not connected.
12 volt DC output plug not
plugged into DC power jack
Lamp burned out.
Lamp loose in socket.
Cover slip on specimen slide
too thick.
Slide upside down.
Stage drops down from its own
weight.
Objective lenses dirty.
Eyepiece lens dirty.
Too much light.
Eyepiece lens dirty.
Specimen slide dirty.
Condenser lens dirty.
8
SOLUTION
Have qualified service technician repair
outlet.
Plug into outlet.
Plug 12 volt DC output plug into DC
power jack
Replace lamp.
Push lamp pins into lamp socket.
Use 0.17mm thick cover slip.
Place slide on stage with cover slip
facing up.
Adjust tension of coarse focus knob.
Clean objective lenses.
Clean eyepiece lenses.
Adjust intensity of light and check iris
diaphragm aperture.
Clean eyepiece lenses. ***
Clean slide.
Clean lens of condenser.
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