Optika Italy B-380 Series, Инструкция по эксплуатации

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Pagina 19
II. Mechanical Section:
Coarse focus knob is hard to turn Tension adjustment ring is too
tight
Loosen tension adjustment ring
Focus is unstable Tension adjustment ring is too
loose
Tighten tension adjustment ring
III. Electrical Section
LED doesn’t turn on. Power supply not connected Check for proper connection
Brightness is not enough Brightness setting is too low Adjust brightness
Light blinks Power supply not well con -
nected
Check for proper connection
IV. Observation tube
Field of view of one eye does not
match that of the other.
Interpupillary distance is incor -
rect.
Adjust interpupillary distance.
Incorrect diopter adjustment. Adjust diopter.
Your view is not accustomed to
microscope observation.
Upon looking into eyepieces, try looking at
overall field before concentrating
on specimen range. You may also
find it helpful to look up and into distance
for a moment before looking back into
microscope.
V. Microphotography
IImage edge is unfocused To a certain extent it is due to
achromatic objectives features
To minimize the problem, set the aperture
diaphragm in a proper position
Bright spots apear on the image Stray light entering in the micro -
scope through eyepieces or
camera viewfinder
Cover eyepieces and viewfinder with a
dark cloth