16
BM-300
2. Mechanical System
TROUBLE
CAUSE
SOLUTION
1.Image
cannot
be
focused
When adjusting stage height, you forgot
to reattach upper stopper screw
Reattach upper stopper screw
2.Objective
makes
contact with specimen
before focus is obtained
Specimen is mounted upside down
Mount specimen correctly
3.the specimen can not
be moved freely
The slide is not clamped
Clamp the slide firmly
4.Field of view of one
eye does not match that
of the other
Interpupillary distance is incorrect
Adjust interpupillary distance
The diopter is not proper
Adjust the diopter properly
5.Observation is tiring
The brightness of the illumination is not
proper for eyes
Adjust the lamp voltage
2.
Electrical System
TROUBLE
CAUSE
SOLUTION
1.
The bulb cannot
light
No power supply
Check the power cord connection
2.
The bulb burns out
suddenly
The voltage is too high
Lower the voltage
3.
the illumination is not
bright enough
The voltage is too low
Raise the voltage
The bulb is about to burn out
Replace with a new one
4.
Image flicks
The bulb is not inserted deeply
Check its connection
