Drawell B Series Panduan Pengguna - Halaman 16
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6.Troubleshooting
In the period of using B series microscope, if there is any trouble occurs, please
referring to the following sheet listing some common troubleshooting，and
resolve them.
Trouble
Switch on but bulb dark
Bulb is flickering or
brightness is unsteady.
Brightness of view field
isn't
enough
or
uneven.
Image
isn't
(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
is
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 specimen
doesn't meet the requirement
Cover glass of specimen isn't in
up direction
Surface of objective lens is
dirty (especially it is easy for the
front lens of 40X
objective to dip in immersion
oil)
Immersion oil isn't used for
clear
100X objective (oil)
Immersion oil doesn't meet
the requirement
There is bubble in immersion oil
Size of iris aperture isn't
proper
Position of condenser is too low
Plug in again
Change bulb
Change fuse
Insert it again
Replacing bulb
Replacing bulb
Adjust rotation
potentiometer
Make
correct position.
Adjust the size of iris
aperture.
Clean it
Higher condenser
Use
cover glass (0.17mm)
Place specimen correctly
Clean it
Use immersion oil
Use immersion oil
supplied by us
Clear the bubble way
Adjust the size of iris
aperture
Readjust the position of
condenser
14
Remedy
the
objective
in
required
thickness