OPTO-EDU A18.1825-LCD Manuale utente
A18.18 25-LCD
LCD Comparison Microscope
Instruction Manual
To ensure the safety and obtain satisfactory performance, please study this instruction manual thoroughly be
fore start to use the instrument.
1
I.Features and Uses
Though optical enlargement, this comparison microscope ,can help the user to
observe clearly, by looking into the same eyepiece set, the images in both the right
and the left imaging view fields, and compare two or more objects effectively in
cutting, joining or overlapping view fields. Due to its powerful magnification, this
instrument enables the user to perceive the differences between very small similar
objects.
Model A18.1825-LCD Comparison Microscope is a new generation product of
our long-time experience and technical innovation. With our success in solving the
technical problem of the adjustability of its separation line width, its quality has,
therefore, reached the international advanced standard.
This model is an ideal instrument for police stations, procuratorial organs and
courthouses to identify finger prints, shot marks, tool traces, seals and writings, and
for colleges and universities to use for educational purposes as well. It is also suitable
for banks, archeological studies, electronics researches, biological science and
agriculture, etc.
II.Technical Parameters
10X 20X
Photo
-taking
Video
-recording
Working
Distance
Objective Bridge Body
0.8X
1.2X
9.6X/φ28 19.2X/φ17
1.92X
～12X
Actual
Measured
Value
102mm
1.25X 15X/φ18 30X/φ11
2X 24X/φ11 48X/φ7
3.2X 36X/φ7 77X/φ4.5
4.8X 58X/φ4.2 115X/φ2.3
0.4X(attached objective) and 0.8X objective、10X eyepiece combination, general
amplification pow
er 3.8X, ocular imaging view field
φ
60mm.
Eyepiece
Mag./Viewfield
2
Fig.1
11
12
13
14
15
16
17
18
7
8
9
10
20
21
5
4
6
19
1
2
3
22
23
24
25
26
27
28
1. Switch (options)
2. Light source changeover switch
3. Light adjusting knob
4. Control panel
5 .Total switch
6. Y-axial movement knob
7. X-axial movement knob
8. Stage plate
9. Course adjusting focus knob
10. Horizontal linkage knob
11. Magnification changeover knob
12. Separation line adjusting knob
13. Binocular head
14. Photography tube
15. Camera (options)
16. Video recording tube
17. Lever
18. Magnification correcting Knob
19. LED light source
20.12V/50W Strong light source
21. Working table lifting knob
22. Analyzer
23. Polarizer
24. Coaxial light
25. 0.4X objective
26. Green filters
27. Red filters
28. Magnification reticle
1
III. Assembly and Preliminary Observation
1. Loose the clamping screw, take off the dust cover, fix up the binocular
head(13),and then clamp it with this screw;
2. Remove two dust covers from the binocular tubes, insert the required eyepieces
into the tubes;
3. Plug one end of the power line into the socket on the base, the other to the socket
with 110V-220V ground protection;
4. After the above steps are completed, you can carry on preliminary observation.
Place two pieces of paper on the stage plates(18), press the total switch to turn
on this instrument, and drive the knob (9 ), observe this paper’s images through two
eyepieces, and then drive left or right lifting knob(21) until observe the sharpest
images.
In order to acquire more better effect, you must know further this instrument’s
functions.
Ⅳ.Functions and Operations
1.Turn on total switch (5), according to your demand , press the light source
changeover switch to select 12V50W strong light source(20) or LED cold light
source(19).
2.View-speed adjustment : Fix up eyepiece, drive binocular head(13) to adjust
interpupillary distance, shown as Fig.2
Fig.2
2
3.Horizontal working table: Place some specimen on two table plates, separately
drive left and right lifting knob(21) to keep the image clear. For moving left and right
the stage, rotate the knob(7); for moving forward and backward the stage , rotate the
knob(6).
4.Adjustment of separation line: The separation line should be a fine and black
straight one. Turn the separation line adjusting knob(12) to move the separation line,
you may get the left and right single viewfield observation, cutting-image and
superimposed-image comparison. When black and white line are wider , rotate the
black screw at the right of the knob(12), when width are not identical , rotate the
black one at the left of the knob(12). The two black screws are located at the back of
the instrument.
Fine and black Wider black line Width are not identical
Straight line and white line
Fig.3
5. Magnification Adjustment: For in use, both left and right objective should be at
the same magnification . To rotate the magnification changeover knob (11) to
select the required magnification. In order to observe a large viewfield, set 0.4X
low-magnification objective to the whorl (at the downside of objective) and
then renew focusing .
6.
Fig.4
3
To order to keep both left and right objective at the same magnification, the
operator must make focusing by the following methods : separately place the
magnification reticles(28) on two table plates, and view them through eyepieces until
two reticles’ scale can completely coincide . If the left and right scales are not
matched , turn the magnification correcting knob until the reticles’ images are
sharp , and then move the reticles to keep two reticles’ scales completely coincide.
Repeat several operations , you may make sure that both left and right objective are at
the same magnification . When change the objective’s magnification, make some
adjustment according to the above methods.
6.Bullet holder : shown as Fig.5
To observe breech-face markings To observe bullet profile
To observe the bottom of cartridge To observe cutting trace
To observe large cartridge case To observe irregular object
Fig. 5
4
7.Video recording: For video recording , fit up video recording tube(10), on which
the CCD (11) is fixed, and then use special video wire, connect to monitor(or
computer), push in the lever, the operator may observe an image on screen.
8. Photographing: After finishing visual observation, draw out the lever for
photographing. Fit the back of camera into the adapter(12), and then insert to the
instrument. Observe the object through viewframe , adjust both left and right stages
to obtain a satisfying image, and then take a photo.
9.Polarization Light : Insert polarizer to the chamber of strong light mount , set
analyzer to objective tube, shown as Fig.6
Fig.6
10.Coaxial Light : Set coaxial light device to objective tube , adjust strong light
mount to the horizontal location , and vertically illuminate the deep hole, if observe
the inside of hole , incline the table plate.
Fig.7
5
11.Power source: All electric parts are built into the base of instrument. If there is
some wrong with the instrument , firstly check the fuse at the back of base. Any
further examination or repair which might become necessary should be entrusted to
our factory or other special department.
Ⅴ. Maintenances
1. The instrument must be kept in shade ,cool and dry place ,free of dust ,acid ,alkali
and vapor. As soon as work is finished , the dustcover should be put on it.
2. The instrument must be kept clean. The dust of optical surface can be blown by a
balloon or should be cleaned off with a soft hair brush, the dirty can be wiped off
gently with lens tissue moistened with xylene.
3. The instrument should not be disassembled by the user .Any examination or
repair which might become necessary should be entrusted to our factory or other
special department.
6
A18.1825-LCD Comparison Microscope
Packing List
Mainbody 1 pcs Video recording tube
1 pcs
Binocular head 1 pcs Photography tube 1 pcs
10X Eyepiece 2 pcs Camera adapter 1 pcs
20X Eyepiece 2 pcs 12V50W
halogen lamp
2 pcs
Polarizer 2 pcs LED Light 2 pcs
Analyzer 2 pcs Power cable 1 pcs
Red ,yellow,blue,green and
violet Filter
2 pcs/each Fuse 1 pcs
0.4X Objective 2 pcs Fittings case 1 pcs
2X Objective 2 pcs Dustproof cover 1 pcs
Coaxial light device 2 pcs Certificate of quality 1 pcs
Bullet holder 2 pcs Operating Introduction 1 pcs
Magnification reticle 2 pcs
9.7” Pad Camera 1set 1set
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