Drawell SMART Series User Manual - Page 9
Browse online or download pdf User Manual for Microscope Drawell SMART Series. Drawell SMART Series 12 pages. Biological microscope
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new bulb with silk cloth to avoid fingerprint and dust affect bulb brightness and service life, and
insert fully the contact pins into the bulb socket.
6.3.6 Close the lamp housing cover, and screw the knurled thumb screw.
▲After working for above 10 hours continuously,
better cut off the microscope about 30 minutes.
6.4 Replacement of fuse
6.4.1 Cut off power of microscope, and pull out the
plug.
6.4.2 Unscrew fuse cap in the back of base, take out
old fuse.
6.4.3 Replace a new fuse, then screw the fuse cap.
7. Troubleshooting
In the period of using Smart series microscope, if there is any trouble occurs, please referring to the
following sheet listed some common troubleshooting resolve them.
Trouble
Switch on but bulb dark
Bulb is flickering or
brightness is
unsteady
Brightness of view field
isn't enough or is
Uneven
Brightness of view field
isn't enough or is
Uneven
Image isn't clear
(contrast or definition
isn't enough)
Causation
Plug is unreliable
Bulb is broken
Fuse is broken
Bulb is unstable
Bulb is broken
Bulb specification doesn't
meet the requirement
Brightness isn't adjusted
correctly
Objective isn't in correct
position
The size of iris aperture is too
small
Lens (objective, eyepiece,
condenser, light collector) has
dust
Position of condenser is too low
Cover
glass
of
doesn't meet the
requirement
Cover glass of specimen isn't in
up direction
Surface of objective lens
isdirty (especially it is easy for
the front lens of 40X objective
to dip in immersion oil)
Immersion oil isn't used for
100X objective (oil)
Immersion oil doesn't meet the
requirement
-８-
Plug in again
Change bulb
Change fuse
Insert it again
Replacing bulb
Replacing bulb
Adjust rotation
potentiometer
Make the objective in correct
position
Adjust the size of iris aperture
Clean it
Higher condenser
specimen
Use required thickness cover
glass (0.17mm)
Place specimen correctly
Clean it
Use immersion oil
Use immersion oil
supplied by us
Remedy