Instruction Ma nua l
SFC-100 Series
Copyright © 02/02
Motic Microscopes, Europe an Div isio n
1. Eyepiece
2. Eyepiece tube
3. Revolv ing
nosepiece
4. Objectives
5. Stage support clips
6. Stage
7. Condenser
8. Diaphragm
9. Filter holder
10. On switch
11. Head
12. Arm
13. Safety
rack stop
14. Coarse focus
knob
15. Fine focus
knob
16. Illuminator
17. Base
Model SFC-100FL
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Introduction
Thank you for your purchase of a Motic microscope. Motic microscopes are precision instruments, subjected
to meticulous examination in order 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 microscope, however, it is provided to answer any queries that may arise.
Your new microscope combines high performance features, with an excellent degree of optical resolution
and clarity of image. It incorporates a 120mm x 110mm stage with objectives located on a ball bearing
nosepiece; a precision coarse and fine focusing system; coarse and fine focus knobs, a fixed Abbe
condenser with a numerical aperture of 0.65 N.A. and a built-in 220V/ 20W tungsten illumination.
The SFC-100FL(H) model inc or porates 12 V/10W halogen illumination.
These instructions should be read carefully before operating the m icroscope. They will permit you to use
your new micros cope to its fullest capa bilities. Terminolog y used to describe com ponents and controls ca n
be found in the diagram on page 2.
These instructions are based on the assembly and use of the SFC-100FL model with additional notes
applying specifically to models SFC-100FL(H) and SFC-100FLED.
Unpacking
All components of the microscope have been carefully packed to make sure they reach you in perfect
condition. We recomm end that you do not discard any packing container s in case you need to return the
microscope or store it f or long periods of time; or should it become necessary to transport it to a technical
service for any repair, or maintenance procedure.
The box should contain the following components, depending on the model:
• SFC-100FL: A micros cope with a monocular head, eyepiece, fixed stage , 0.65 A.N. condenser an d
three objectives. A blue filter and a protective dust cover are also included.
• SFC-100FL(H):
and three objectives. A blue filter and a protective dust cover are also included.
• SFC-100FLED:
and three objectives. A protective dust cover is also included.
A microscope with a monocular head, eyepiece, fixed stage, 0.65 A.N. condenser
A microscope with a monocular head, eyepiece, fixed stage, 0.65 A.N. condenser
Remove and handle the microscope and all its components 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.
A. Place the microscope in an upright position on a clean flat and stable surface.
B. Remove the rest of the components from the box.
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Description of components
1. Head (11). Monocul ar 360º rotating head, allo ws user to observe, without nece ssity of moving the
microscope.
2. Eyepiece (1). The le nses closest to the e ye, they magnify the image formed by the objectives. The
eyepiece includes a pointer to signal out any particular element to another user.
3. Revolving nosepiece (3). The revolving action permits the user to change the degree of
magnification, the correct positioning of the objectives is marked by a “click” in the optical path.
4. Objectives (4). The group of lenses closest to the sam ple, or microsc opic specim en forming the first
magnified image.
5. Stage (6). Platform of the microscope where the specim en is placed. The speci men slide is held in
place by specimen holder clips.
6. Condenser (7). Optimises illumination for enhanced resolution and image contrast.
7. Focusing Knobs (14-15). Situated on bot h sides of th e arm of the m icroscope, the larger , or coarse
focusing knob initia lly brings the s pecimen into f ocus, and the s maller, fine foc using knob per mits a
precise adjustment of the image.
8. Illumination (10-16). The SFC-100FL comes with a 220V/20W tungs ten bul b, th e SFC -100FL(H) with
a halogen 12V/10W bulb and the SFC-100FLED with a LED 3.5V/70mW.
Warning: Before connecting the mic roscope to an el ectrical s ource, alwa ys check t hat the voltage c oincides
with that of the microscope.
Operation
A. Starting Up
1. Connect the microscope to a power source.
2. Press the ON switch (10).
Note: The LED illuminating microscope comes with 3 “AA” size 1.2V Nickel Metal Hydride
(NiMH) batteries. T he batte r ies ar e no t c harge d, bu t there may be enough po wer t o tur n th e L ED
light on. We recommend that you charge the batteries for 12 hours before you use this
microscope for the first time.
B. Focussing the microscope.
1. Turn the revolving nosep iece (3) and place the 4X objective (4) in the optical path, click ing
well into place.
2. Turn the coarse focus knob (14) until the stage (6) has been moved to its lowest position.
3. Place the micros c opic s pec im en s lide on the s t age , m aking sure that the cover s l i p is r a ised.
Lift the specimen holder clips (5) pressing downwards on the lower part, and slide the
specimen slide under the clips. Release pressure so that the slide is firmly held in place.
4. Make sure that the specimen on the slide is in the optical path.
5. Looking through the e yepiece (1), turn the coarse f ocus knob until the sample appears in
focus.
6. Readjust the focus with the fine focus knob (15) until the image appears sharp.
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C. A djusting the aperture of the diaphragm.
The diaphragm (8) should not be us ed to r e gul ate t he light intensity, its function is to obta in a
high resolution of the sp ecimen and to provide c ontrast in the image. Sm aller apertures will
deliver higher contrast to image, although closing the aperture too much will reduce
resolution. The best wa y to obtain the correct apert ure of the diaphragm is to experiment.
Suggested apertures for each objective are as follows:
OBJECTIVE APERTURE OF IRIS
4X From fully closed to 1/8 open.
10X From 1/8 to 1/4
40X From 1/4 to 1/2
100X (optional) From 1/2 to 3/4
D. Changing magnification.
1. Position the objective 10X (4) in the optical path.
2. This microscope has alre ad y been parf ocalise d, altho ugh it is possib le that small differences
exist between the obj ectives. It may then be necessary to adjus t the focus slightly with the
fine focus knob (15).
3. When changing to the 40X and 100X objectives (optional), it m ust be done with great care,
ensuring that the objectives do not cause damage to the front lens.
4. In order to obtain maximum resolution of the 100X objective (optional), it is necessary to
apply immersion oil between the cover slip of the slide and the front lens of the objective.
a. Only a very small amount of immersion oil is needed, a drop should be enough.
b. If air bubbles appear the y can be removed b y gently rotating the nosepiece (3)
back and forth.
c. After viewin g, all parts that have come into contact with the oil m ust be cleaned
using a soft cotton c l oth, l ight l y dampened with Xylene. If the 100X objective is not
cleaned, the oil will dry, and it will not be possible to see thr ough it; permanent
damage could also occur.
NB. Immersion oil must ONLY be used with the 100X objective, as it is the only one
specially prepared for it. If any other objective comes into contact with the oil, it must
be cleaned immediately.
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.
IF THE MICROSCOPE REQUIRES ANY MAINTENANCE OR REPAIR NOT APPEARING IN THIS
MANUAL, CONSULT YOUR DISTRIBUTOR.
A. Optical maintenance
Do not attempt to disassemble any optical component.
Prior to cleaning an y of the lens surfaces, remove dus t particles using a fine brush, s pecifically for
cleaning lenses. Alternatively, use low pressure compressed air, available in shops selling
photography equipment.
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Fig.1
1. Cleaning the eyepiece
a. Do not remove eyepiece (1) from eyepiece tube (2).
b. Clean only the outer surface, misting the lens with breath.
c. Dry by w iping with lens pap er in circular movements , f rom centre, outwards. Do not wipe
lenses when dry, as they can easily be scratched.
2. Cleaning the objectives.
a. Do not remove the objectives (4) from the microscope.
b. Only clean the outer surface, dampening a soft cotton cloth slightly with Xylene then
drying the lens with the same cloth.
3. Cleaning the condenser.
a. Clean only the top lens surface using eith er of the above m ethods, as for the e yepiece,
or the objectives.
4. Cleaning the illuminator lens .
a. Use any of the above methods, as for eyepiece, or the objectives.
B. Electrical maintenance.
WARNING: FOR YOUR OWN SAFETY SWITCH OFF AND DISCONNECT THE MICROSCOPE
FROM ANY ELECTR ICAL SOURCE, BEFORE ATT EMPTING ANY MAIN TENANCE PRO CEDURE
TO AVOID THE RISK OF ELECTROCUTION.
1. Changing the bulb
• For the SFC-100FL
a. Unscrew the illum inator (16) in a clockwise direction . If the bulb has been used, m ake
sure that it has cooled down.
b. Carefully take hold of the bulb, push down, and turn ¼ in an anti-clockwise dir ection.
Release pressure and the bulb will be freed from the socket.
c. Insert new bulb by pushing down and turning 1/4 turn in a clockwise direction.
d. Clean bulb if it has been to uched, as this coul d leave traces and affect the trans mission
of light.
e. Screw down the illuminator.
• For the SFC-100FL(H)
a. Lay the microsc ope down on its side taking extreme care, especial ly with the eyepiece
(1).
b. Completely unscrew the 4 screws indicated (Fig. 1).
c. Open the cap on the base.
d. With a cloth carefully take hold of the bulb and pull straight out of socket.
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Fig. 2
Fig. 3
Fuse
e. Do not touch bulb with fingers, use a clean cloth and insert pins of bulb into socket.
f. If bulb has been touched, clean it as this could affect light transmission.
g. Close the cap, and screw down firmly.
• For the SFC-100FLED
a. Lift up the stage using the focusing knobs.
b. Unscrew the screws indicated. (Fig. 2)
c. Take out t he top part of the illum inator caref ull y
without damage the bul b, the condens er or the
illuminator.
d. With carefully take out of the bulb and pull
outwards to disconnect it from the socket.
e. Do not touch the new bulb with bare hands.
Use a clean cloth to insert the bu lb pi ns into th e
socket.
f. If the bulb is touch ed with bare hands, it m ust
be cleaned, as the transmission of light could
be affected.
g. Put on again the top part of the illuminator and tight the screws.
2. Changing the fuse (Fig. 3).
a. With a flat screwdriver, pr ess lightly on the slot on
the fuse holder cap and tur n ¼ way in the direction
of the arrow indicated.
b. Release pressure and remove cap.
c. Rem ove the fuse from the cap by pulling it out, and
insert a new one, ensuring that it is 0.5 Amps.
d. Insert cap with fuse.
e. Repeat (a.) turning 1/4 in the opposite direction to
the arrow indicated. The cap should be firmly
closed.
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3. Changing the batteries.
Fig. 4
Fig. 5
a. Unplug the charger.
b. Remove the screws from the bottom plate of the
microscope base , and move away the bottom plate
carefully, (as referred to Fig.1)
c. Release the screw from the battery chamber (Fig.4), then
slide off the lid.
d. Insert the batteries to the battery chamber according to
the indications on the chamber (Fig.4).
e. Slide back in the lid carefully and tighten firmly with the
original screw.
f. Replace back the bottom plate of the microscope and
tighten it with the screws as shown in Fig. 1.
E. Mechanical maintenance.
1. Adjusting the tension of the coarse focus knob.
The collar to adjus t the coa rs e foc us tension (F ig. 5)
is situated between the coars e focus knob (14) and
the arm (12).
The tension of the coarse focus knob comes pre
adjusted by the manufac turer. The optimum tension
point is that which permits fluid movement of the
knobs, without the stage (6) sliding down on its own.
a. To adjust the tension, first loosen the screw
situated in one of the colla r holes, with a 2mm
hexagonal key.
b. To tighten the tension of the coarse focus
knobs, turn the collar anti-clockwise; or to
loosen it, turn clockwise.
c. Tighten the hexagonal screw.
2. Adjusting the rack stop.
The 40X objective uses a retrac table securit y system to avoid dam age to the specim en slide or
to the front of the lens, should the two come into contact. Additionally as a security measure, the
microscope includes a rac k stop screw that regulates the up ward movement of the stage. T he
rack stop screw comes pre-adjusted by the factory for standard slides with a 0.17mm thick
cover slip. However, for observing other types of slides adjustment may be necessary.
a. Loosen the rack stop screw. (13)
b. Unscrew the knurled screw. (13)
c. With the fine focus knob at mid-range, focus on specimen slide, using only the coarse
focus knob (12), firstly with the 4X objective (4), then with the 10X.
d. Tighten the rack stop screw just until the stage (6) can not ascend.
e. Tighten screw.
Tension
adjustment
collar
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PROBLEM
CAUSE
SOLUTIÓN
Wrong bulb.
Replace by the correct bulb.
off.
Bulb burns out immediately.
Wrong bulb.
Replace with the correct bulb.
technician.
Fuse blows in short time.
Wrong fuse.
Replace with the appropriate fuse.
Fuse blows immediately.
Short circuit.
Repair by a qualified technician.
PROBLEM
CAUSE
SOLUTIÓN
Image too bright.
Reduce the intensity of the light.
Poor resolution.
Dirty objective.
Clean objective.
Clean condenser.
Spots in field of view.
Dirty eyepiece.
Dirty condenser.
Clean eyepiece.
Clean condenser.
Uneven illumination of field.
Nosepiece not positioned properly.
open.
Turn until clicks into place.
PROBLEM
CAUSE
SOLUTIÓN
Does not stay in focus.
The stage is sliding down on its own.
Adjust the tension of the coarse focus
knob.
adjusting.
Troubleshooter
ELECTRICAL
Bulb does not work. Plug outlet does not work.
Cable not connected.
Discharged batteries (LED)
Bulb burned out.
Fuse blown.
Bulb burns out in short time. Voltage too high. Reduce light intensity to a minimum
Bulb flickers. The bulb is not correctly inserted
into the socket.
Bulb about to burn out.
Fuse holder not locked into proper
position..
Loose connection at plug outlet.
Repair by a qualified specialised
technician.
Connect cable.
Charge the batteries
Replace bulb.
Replace fuse.
before turning the microscope on or
Insert correctly.
Replace bulb.
Close correctly.
Repair by a qualified specialised
IMAGE QUALITY
No image. Nosepiece not positioned properly.
Turn until clicks into place.
MECHANICAL
Does not focus. The stopper on the ascending
Dirty eyepiece.
Slide upside down.
Wrong cover slip used with slide.
Light too bright.
Dirty condenser.
Dirty slide.
Diaphragm aperture not sufficiently
movement of the stage needs
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Clean eyepiece.
Replace the slide with the cover slip
facing upwards.
Use 0.17mm thick cover slips.
Reduce light intensity or adjust the
diaphragm aperture.
Clean preparation.
Adjust appropriately.
Readjust the stopper.
Moving the microscope
• Avoid moving the microscope if possible.
• Carry the microscope in both hands, w ith one hand holding the arm (12), and the other supporting t he
base (17).
• Keep the microscope in an upright position.
Repairs
If the microscope needs repairing, or revision by authorised personnel, we would recommend that it be
stored in its polystyrene bo x and returned to the distr ibutor. Attach a note with a description of the pr oblem,
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 without char ge when returned to MOTIC, or one of its distributors. Tr ansport costs will be co vered
by the purchaser.
OWING TO POSSIBLE MODIFICATIONS AND IMPROVEMENT S IN THEIR MANUFACTURE, CHANGES
MAY OCCUR TO MICROSCOPES WITHOUT PRIOR NOTICE.
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