Motic DM-143-FBGG Series User manual

Instruction Manual
DM-143-FBGG
Copyright © 02/02
Motic Microscopes, European Division.

DM-143-FBGG
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11. Stage
12. Stage plate
locking spring
9. On/Off switch
7. Incident illumination
6. Objectives
8. Incident light
adjustment screw
13. Base
1. Eyepiece
14. Head
18. Focus knob
20.Support
collar screw
22/23. Light
switches
(I&T)
24. Light
intensity control
2. Diopter
adjuster
3. Eyepiece tubes
5. Head holder
locking screw
10. Slide stage clips
17. Head holder
19. Support collar
21. Column
15. Power cord for
incident illumination
4. Prism housing
16. Zoom
knob

Introduction
Thank you for your purchase of a Motic stereomicroscope. Motic stereomicroscopes are precision
instruments, subjected to meticulous examination to reach you in perfect condition. Their design combines
easy management and optimum functioning with minimum maintenance.
The information contained in this manual is likely to go beyond what the average user needs to know to use
the stereomicroscope, however, it is provided to answer any queries that may arise.
Stereomicroscopes are used to study three dimensional objects, examine small parts, or dissect biological
specimens. They also permit the observation of slide specimens.
These instructions should be read carefully before operating the microscope. They will permit you to use
your new stereomicroscope to its fullest capabilities. Terminology used to describe components and controls
can be found in the diagram on page 2.
These instructions are based on the assembly and use of the SMZ-140-N2GG model with additional notes
applying specifically for the other models in the series.
Unpacking
All components of the stereomicroscope have been carefully packed to make sure they reach you in perfect
condition. We recommend that you do not discard any packing containers in case you need to return the
microscope or store it for long periods of time; or should it become necessary to transport it to a technical
service for any repair, or maintenance procedure.
Remove and handle all components of the microscope with extreme care.
Avoid touching the lenses of the optical elements and keep clear of contact with dust, water or other
contaminating agents, as they could stain, or damage the lens surface and affect the quality of the
image.
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Assembly
All the steps described for the assembly of the stereomicroscope must be undertaken with extreme
care, and without forcing the placement of the distinct parts and elements of the stereomicroscope.
A. Place the base of the microscope (13) upright on a flat, stable and clean surface.
B. Ensure that the head holder locking screw (Fig. 1) is tight.
C. Connect incident illumination to power cord (15) located at the upper part of the column (21).
WARNING: Before connecting the stereomicroscope to a power source, always check that the
voltage coincides with that of the stereo microscope.
Operation
A. Starting Up
The stereomicroscope has two stages. One is frosted glass and is used for the observation of
microscope slides or samples that are thin or transparent, such as leaves, insect wings, etc. The
black and white stage is used for non transparent objects, or for dissection. For best contrast,
choose the side of the stage to use.
Warning: Transmitted illumination can ONLY be used with the frosted glass stage. THE HEAT
GENERATED BY THE TRANSMITTED ILLUMINATION CAN MELT OR DAMAGE THE BLACK
AND WHITE STAGE. SUCH DAMAGE WOULD NOT BE INCLUDED UNDER WARRANTEE.
1. Changing the stage.
a. If wishing to use the glass stage, insert the blue filter in the centre of the base with
the frosted surface facing down.
b. Place the glass stage with the frosted surface, again, facing down.
2. Before connecting the stereomicroscope to a power source, adjust light intensity to its
minimum (24). This must be repeated every time the stereomicroscope is turned on or off, to
prolong the life of the bulb.
Three light switches are located on the base of the microscope.
MAIN : The principal switch, which turns the whole unit on or off.
I : Turns incident light on or off. (Illumination from above)
T : Turns transmitted illumination on or off (illumination from below)
3. Press the principal switch (9) to an ON position “I”.
4. Press the incident illumination (22) or transmitted illumination (23) or both at the same time
“I” or “II”, according to your needs in observing the sample.
5. Light intensity should be adjusted according to the objective used, or the type of sample
observed.
6. The angle of incident illumination can be adjusted by using the adjustment screw (8) that can
be used to vary the orientation of the lens.
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B. Interpupillary adjustment.
1. Looking through the eyepiece (1), move the eyepiece tubes (3) by taking hold of the prism
housing (4) and moving out, or inwards.
2. Interpupillary distance is correct when the two fields of view viewed through both eyepieces
appear complete and are unified into one.
3. Interpupillary distance should be adjusted for each new user.
C. Focussing
1. Turn the zoom knob (16) to the lowest magnification 1X.
2. Place a flat object or a microscope slide on the centre of the stage (11).
3. Turn focussing knobs (18) to mid-focus range.
4. The head holder (17) is mounted on a column (21), on which it can be moved up or down,
depending on the size of the object to be focussed on.
a. Support head holder (17) with one hand without touching any lens, and with the
other, loosen the screw (20) on the support collar (19). The head holder can then
be slid to the base (13).
b. Without letting go of the head, loosen the head holder locking screw. (Fig. 1).
c. While looking through the eyepiece, move the head holder up or down until the
object appears in focus.
d. Tighten the head holder locking screw. Do not let go of the head yet.
e. Slide the security collar up to the head holder, and tighten the support collar
screw. The head can then be released.
f. It is not necessary to adjust the head every time the sample is changed, only
when it appears out of focus.
5. Adjust the focus knobs, (18) until the image appears sharp.
D. Diopter adjustment.
Diopter adjustment collars are located on the eyepiece tubes. Their normal position is when the
lower part of the collar is aligned with the sign marked on the eyepiece tube.
For differences in eyesight:
1. Using only the right eye, look through the right eyepiece (1) and adjust focus.
2. Next, using the left eye, look through the eyepiece and adjust the focus by turning the diopter
adjuster (2) located on the left-hand tube (3) until the image appears sharp. Do not use the focus
knobs to adjust focus (18).
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E. Changing magnification.
1. Turn the zoom control (16) to the highest magnification, 4X.
2. Although the stereomicroscope has been parfocalised, focus will have to be adjusted as the
objectives of a low magnification offer a more profound field of view. The profundity of the field is
the capacity to focus on different points on different levels.
3. Once the image is in focus with the higher magnification objectives it is not necessary to adjust
the focus when lower magnification objectives are used.
Connecting the camera
Before installing the software, please ensure the following:
- Do not connect the USB2.0 cable to computer before installing the Motic software.
- Plug in the Microscope’s power cord and switch the unit on.
- Check that you have a Motic software CD with your microscope.
- Your computer should meet the Minimum System Configuration as listed below.
Minimum System Configuration:
CPU: Intel based 1.4GHz or better for PC or G4 for Mac
HDD: 1GB available disk space
RAM: 512MB or more
Display Card: 32MB display memory
Operating System: Windows XP or higher / Mac OSX
Others: Native USB2.0, CD Drive
Installing the Software
Please install the Motic Images software first by referencing the Quick Start Guide provided in PDF format on
the CD. Please keep the CD in the drive to load the correct driver for this Digital Microscope when you plug
in the USB cable.
Operation
Connect the power cable to a power outlet and to the microscope.
Connect the Microscope Head to your Computer’s USB2.0 port with the USB cable.
Switch on the microscope and adjust the illumination intensity to a comfortable level
Please refer further to the enclosed BA manual for details on how to operate the microscope.
Image Adjustment
- Ensure that you pull the Beam Splitter all the way out until you hear it click into place. This
will allow the camera chip inside the head to be exposed to the light from the microscope.
- Then you can start the live image transmission by clicking on the Camera icon
(shortcut Ctrl M). If you do not see an image, please click on “Auto Exposure”. For further
details, please consult the software Quick Start Guide contained as a PDF file in the CD.
- Bring the image into focus by adjusting the focusing control.
- With a 4X objective selected on the microscope, ensure that the image on the screen is in focus
and in the center of the screen.
- Using a 40X objective next, adjust the fine focusing to ensure that the observation is on the
correct focal plane.
- Please note that when changing from 4X to 40X, the image should be Parfocal as well as
- Parcentered on screen.
Calibration
- Put the calibration slide (with four black dots) shipped with the microscope on the stage and
using a 10X objective focus on one of the dots so that the entire dot can be seen on the
computer screen, please note the diameter of the dot you are looking at.
- Click on the Calibration Wizard in the Motic Application Program and follow the on-screen
instructions to calibrate the microscope.
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NOTE: Calibration needs to be done at least once and on at least one objective (we recommend the 10X).
When the computer screen or the screen resolution is changed, the calibration needs to be done again.
Please read the software Quick Start Guide for further information.
Maintenance
WARNING: FOR YOUR OWN SAFETY SWITCH OFF AND DISCONNECT THE MICROSCOPE FROM
ANY ELECTRICAL SOURCE BEFORE ATTEMPTING ANY MAINTENANCE PROCEDURE TO AVOID THE
RISK OF ELECTROCUTION.
CONSULT YOUR DISTRIBUTOR IF ANY REPAIR OR MAINTENANCE PROCEDURE IS REQUIRED TO
YOUR MICROSCOPE THAT DOES NOT APPEAR IN THIS INSTRUCTION MANUAL.
A. Optical maintenance.
Do not attempt to disassemble any optical component. For any repair work not specified in this manual,
consult the technical service responsible in your area.
Before cleaning the lens surface, remove dust with a brush specifically for lenses, or with low pressure
compressed air, found in any photography shop.
1. Cleaning the eyepiece
a. Do not remove the eyepiece (1) from the eyepiece tube (3).
b. Clean the external surface dampening the lens with breath.
c. Afterwards, dry the lens with special lens paper. Dry in circular movements from the centre o the
lens, outwards. Do not wipe the lens when already dry, as they scratch easily.
2. Cleaning the objectives.
a. Do not remove objectives from the microscope.
b. Only clean the surface area. Use a soft cotton cloth dampened slightly with Xylene. Dry the lens
afterwards with the same cloth.
B. Electrical maintenance.
1. Changing the transmitted illumination bulb.
a. Remove the stage (10), and also the metallic stage with the blue filter (Fig.2).
b. Remove the bulb carefully using a cloth, pulling it straight out of the socket.
c. Place the replacement bulb in the socket.
d. If the bulb has been touched with the hands it should be immediately cleaned as this could affect
light transmission, and the duration of the bulb.
e. Replace the stage, metallic stage and blue filter.
2. Changing incident illumination bulb.
a. Firstly holding the illuminator with care, completely unscrew, and remove both adjustment knobs
for incident light angle (8),
b. Unscrew the illuminator lens tube (7), turning it anti-clockwise.
c. Remove the bulb from the socket.
d. Do not touch the replacement bulb with hands. If bulb has been touched with the hands, it
should be cleaned immediately as this could affect the transmission of light and the duration of
the bulb.
e. Screw illuminator lens tube, turning clockwise.
f. Holding the illuminator with care, screw on both adjustment knobs for incident light angle (8).
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1. Changing the fuse.
a. With a flat screwdriver, lightly press on the slot of the fuse holder cover (Fig. 1) and turn 1/4 in
the direction of the arrow marked.
b. Release pressure and completely remove the loosened cover.
c. Remove the fuse from the removed cover, and insert the new one, ensure that it is 0.5 Amps.
d. Insert the cover.
e. Repeat step (a.) but turning 1/4 in the opposite direction to the arrow. The cover must be firmly
closed.
C. Mechanical maintenance
1. Adjusting the tension of the focus.
Tension comes pre-adjusted by the factory. The best point of tension is that which permits the
focus knobs to move as loosely as possible, without the head sliding down with its own weight.
The tension adjustment collar for focussing (Fig.1) is situated between the focussing knob (18)
and the head holder (17).
a. Loosen the screw located in the collar hole with the 2mm hexagonal key.
b. To increase the tension, turn the collar anti-clockwise; to decrease it, turn the collar
clockwise.
c. Re-tighten the hexagonal key.
Troubleshooting:
ELECTRICAL PROBLEMS
PROBLEM
CAUSE
SOLUTION
The bulb does not work.
Outlet inoperative.
Cable not connected.
Bulb burned out.
Fuse blown.
Wrong Bulb.
Have it repaired by a qualified
specialised technician.
Connect the cable to the power
source.
Replace bulb.
Replace fuse.
Replace with appropriate bulb.
Bulb has short life span.
Very high voltage.
Reduce light intensity to the minimum
before turning on or off the
stereomicroscope.
Bulb burns out
immediately.
Wrong bulb.
Replace with the appropriate bulb.
Bulb flickers.
The bulb is not inserted correctly into
socket.
Bulb on the point of burning out.
Fuse cover badly closed.
Bad connection with power source.
Insert bulb correctly.
Replace bulb.
Close correctly.
Have repaired by a qualified
specialised technician.
Fuse blown quickly
Wrong fuse.
Replace with appropriate fuse.
Fuse blown instantly
Short circuit.
Have repaired by a qualified
specialised technician.
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IMAGE QUALITY
PROBLEM
CAUSE
SOLUTION
Poor resolution.
Eyepieces dirty.
Objectives dirty.
Clean eyepieces.
Clean objectives.
Spots, or stains in field
of view.
Eyepieces dirty.
Clean eyepieces.
* NB. Stains in field of view may also be attributed to dirt on the inside of the eyepiece. It is recommended
therefore that the lens be cleaned by a recognised service technician.
MECHANICAL PROBLEMS
PROBLEM
CAUSE
SOLUTION
It does not stay in focus.
The head drops down.
Adjust the tension of the coarse focus
knob.
Moving the microscope
•If possible, avoid moving the stereomicroscope.
•Carry the stereomicroscope in both hands. One hand should hold the stereomicroscope column (21), and
the other should support it under the base (13).
•Maintain the stereomicroscope in a vertical position.
Repair
If the stereomicroscope needs repairing, or revision by authorised personnel, we recommend that it be
stored in its polystyrene box and returned to the distributor. Attach a note with a description of the problem,
or details of the required revision.
Warrantee
All MOTIC microscopes are warranted against any manufacturing defect for a 5 year period. Damage
occurring by any unauthorised repair work or occurring through misuse or modification of the microscope will
not be included under the conditions of the warrantee. Bulbs and fuses are not under warrantee.
The warrantee service is provided by MOTIC, or its authorised distributors. Defective products will be
repaired free of charge when returned to MOTIC, or one of its distributors. Transport costs will be covered by
the purchaser.
OWING TO POSSIBLE MODIFICATIONS AND IMPROVEMENTS IN THEIR MANUFACTURE, CHANGES
MAY OCCUR TO STEREOMICROSCOPES WITHOUT PRIOR NOTICE.
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