SVBONY SM402, Руководство пользователя

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5-2 Base electrical specifications
Mode lcomposition
Power supply 220V-50Hz
、
110V-50/60Hz
Transformer Built-in 0-12V, continuous dimming
Lighting source Ring 3W LED
★
This working distance is fixed and does not change with the change of magnification.
★
After using the auxiliary objective lens, total magnification = objective lens magnification × eyepiece magnification × auxiliary objective
lens magnification
Eyepiece field of view
Object field of view
（
mm
）
=
Objective lens magnification × auxiliary objective lens magnification
★
The magnification of the film on the photographing device = the magnification of the objective lens (× the magnification of the auxiliary
objective lens) × the magnification of the photographic eyepiece.
★
The magnification of the film on the camera device = the magnification of the objective lens (× the magnification of the auxiliary objective
lens) × the intermediate magnification of the C-type camera tube.
6.Fault handling
If the performance of the microscope cannot be fully utilized due to unfamiliar use, the following table can provide you with some solutions.
6-1 General troubleshooting
Problem Cause Solution
1
.
Double images do not overlap Incorrect interpupillary distance adjustment Correct interpupillary distance
Incorrect diopter adjustment Re-adjust the diopter
The left and right eyepieces have different magnifications Install the same eyepiece
2
.
There is dirt in the field of view There is dirt on the specimen Clean specimen
Dirt on the surface of the eyepiece Clean the eyepiece
3
.
Unclear image There is dirt on the surface of the objective lens Clean the objective lens
4
.
Image is not clear when zooming Incorrect diopter adjustment Re-adjust the diopter
Incorrect focus Refocus
5
.
Focusing hand wheel is not flexible The focus handwheel is locked too tightly Loosen appropriately
6.During the observation process,
the microscope body descends by Focusing hand wheel is too loose
itself, making the image unclear
7
.
There are cuts in the field of view
of the observation eyepiece or The lever has not moved in place Move the lever into place
photographic camera
8
.
When adjusting the focus, the image Improper adjustment of camera focus Use the focus ring on the camera tube to
on the video monitor is not clear re-adjust the focus depth of the camera
9
.
Eyes tired easily The diopter is not adjusted correctly Correctly adjust the diopter
Inappropriate lighting Adjust the dimming knob
10
.
The bulb does not light up when No power Check the connection of the power cord
the switch is turned on The bulb is not inserted Insert correctly
The light bulb is broken Replace
11
.
The bulb burned out suddenly Use of non-designated bulb Replace with designated bulb
Voltage is too high Control voltage (if using voltage regulator)
12
.
Insufficient lighting Use of non-designated bulb Replace with designated bulb
Voltage is too low Increase voltage
13
.
The bulb is flickering or unstable The light bulb is about to break Replace
Unstable lamp installation Check and insert firmly
Problem Cause Solution
1
.
The image on the display is cut The lever has not moved in place Move the lever into place
2
.
The image on the display has dirty There is dirt on the specimen Clean specimen
spots There is dirt on the surface of the objective lens Clean the objective lens
3
.
Image is not clear when zooming The image is not clear when in a high magnification Set the highest magnification, refocus
6-2 Video troubleshooting
3
After the focusing wheel is unscrewed,
there are two spacers, which need to be
close to the body, and then rotate the
focusing wheel to tighten