Fault Handling - SVBONY SM402 Bedienungsanleitung

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