8
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
REASON FOR PROBLEM
SOLUTION
Light fails to operate.
Outlet inoperative.
Have qualified service technician repair
outlet.
AC power cord not connected.
Plug into outlet.
12 volt DC output plug not
plugged into DC power jack
Plug 12 volt DC output plug into DC
power jack
Lamp burned out.
Replace lamp.
Lamp flickers
Lamp loose in socket.
Push lamp pins into lamp socket.
Image does not focus
Cover slip on specimen slide
too thick.
Use 0.17mm thick cover slip.
Slide upside down.
Place slide on stage with cover slip
facing up.
Image does not remain in focus Stage drops down from its own
weight.
Adjust tension of coarse focus knob.
Poor resolution
(image not sharp)
Objective lenses dirty.
Clean objective lenses.
Eyepiece lens dirty.
Clean eyepiece lenses.
Too much light.
Adjust intensity of light and check iris
diaphragm aperture.
Spots in field of view.
Eyepiece lens dirty.
Clean eyepiece lenses. ***
Specimen slide dirty.
Clean slide.
Condenser lens dirty.
Clean lens of condenser.
***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.
