Gima S.p.A.
Via Marconi, 1 - 20060 Gessate (MI) Italy
gima@gimaitaly.com - export@gimaitaly.com
www.gimaitaly.com
Biological Microscope
USE AND MAINTENANCE BOOK
M31002-EN-Rev.0.11.17
ATTENTION: The operators must carefully read and completely understand the present
manual before using the product.
31002
Fabbricante
Manufacturer
Teme l’umidità
Keep dry
Conservare al riparo della luce solare diretta
Keep away from sunlight
Alltion (Wuzhou) Co., Ltd.
Alltion Building, NO.10, 3rd Road, Wuzhou Industrial Park,
Wuzhou, Guangxi, China
Made in China
11
12
13
01
14
15
02
03
04
05
06
07
16
08
17
09
18
10
03
13
23
24
25
26
06
20
21
14
15
27
28
20
22
Biological Microscope
01 Eyepiece
02 Nosepiece
03 Objective
04 Condenser
05 Aperture Iris Diaphragm adjustment
06 Illumination
07 Main body
08 Main Switch
09 Bulb
10 Screw
11 Interpupillar Distance Indicator
12 Binocular viewing head
13 Stage
14 Portrait Adjustment Knob
15 Lateral Adjustment Knob
16 Right Fine Focus Knob
17 Right Coarse Focus Knob
18 Tension Adjustment Collar
20 Condenser Focusing Knob
21 Condenser centering knobs
22 Power cable
23 Locking Set
24 Left Fine Focus Knob
25 Left Coarse Focus Knob
26 Brightness Adjustment Knob
27 Fuse holder
28 Cable winder
ENGLISH
Safety Note
1. Open the box carefully to avoid the accessories, like lens, dropping to ground or being
damaged.
2. Do keep the instrument out of direct sunlight, high temperature or humidity, dusty and easy
shaking environment. Make sure the stage is flat, horizontal and firm enough.
3. When moving the microscope, carefully carry it with the handle and the base.
4. Make sure the instrument is earthed, to avoid lighting strike.
5. For safety, be sure the main switch is in “O” (off) state and cut off the power supply before
replacing the bulb or the fuse. If you replace the bulb during use or right after use, allow the
lamp bulb and the lamp house to cool completely before touching.
(Designated bulb: 1W S-LED or 6V20W Halogen Lamp)
6. Check the input voltage: be sure the input voltage which is signed in the back of the
microscope is consistent with the power supply voltage, or it will bring a serious damage to
the instrument.
7. Always use the power cord provided by Gima.
8. The electrical equipment of the microscope should be discard as electronic waste.
Maintenance and Care
1. All the lenses have been adjusted properly; do not dismount them by yourself please.
2. The nosepiece and coarse and fine focusing parts are so delicate that it is forbidden to
disassemble them carelessly by yourself.
3. Keep the instrument clean, and do not pollute the optical element when wiping away the
dust on the instrument.
4. The contaminations on the prism, like fingerprints and oil smudges, could be gently wiped
with a piece of soft cloth or tissue paper, gauze which has been immersed in pure alcohol
or ether. (Note that the alcohol and ether are highly flammable, do keep them away
from the fire or potential sources of electrical sparks, and use them in a drafty room
as possible as you can.)
5. Do not attempt to use organic solvents to clean the microscope components other than the
glass components. To clean them, use a lint-free, soft cloth slightly moistened with a diluted
neutral detergent.
6. When using, if the microscope is splashed by liquid, cut off the power at once, and wipe
away the splash.
7. Do not disassemble any parts of the microscope, as this will affect the function or reduce
the performance of the microscope.
8. Place the instrument in a cool, dry position. When not using the microscope, keep it covered
with a dust cover. Make sure the lamp socket is cool before covering the microscope.
ENGLISH
Assembly procedure
Before installing, be sure every components is clean, do not score any parts or
glass surface.
Keep well with hexagon wrench provided. When changing the components, you
will need it again.
Installing binocular viewing head
Insert the binocular viewing head 12 into the microscope head and turn it to a proper position,
then tight it.
12
Installing the eyepiece
Insert the eyepiece 01 into the eyepiece tube until they are against each other.
01
ENGLISH
Installing the objective
1. Adjusting the coarse focus knob until the
support device of the mechanical stage reaches
its low limit position.
2. Screw the lowest magnification objective 03
into the nosepiece 02 from the left or the right
side, then revolve the nosepiece 02 clockwise
and mount other objectives by the sequence of
low to high magnification
Installing objective this way will make the change
of magnification to be easier during using.
Clean the objective regularly, for lens
is susceptible to dust.
When operating, use 10×
magnification objective to search and
focus specimen firstly, then replace
with higher magnification objective if
necessary.
When replacing the objective, slowly
turn the nosepiece until you hear
“clicked”, that means the objective
is in place.
02
03
Connecting the Power Cord
The cable and cords are vulnerable
when bent or twisted, never subject
the power cord to excessive force.
1. Set the main switch 08 to “0” (off) state before
connecting the power cable 22.
2. Insert the plugs into the power jack 27 of the
microscope safely.
3. Plug the power cable 22 into the power supply
receptacle. Make sure the connection is well.
08
22
Do use the supplied power cord all
the time. If lost or damaged, select
the same standard cord, please.
A wide range of voltage, like
100V~240V, is acceptable for this
microscope.
27
ENGLISH
Replacing the fuse
Do remember to set the main switch 08 to the state “0” (OFF) and unplug the power cord
before replacing the fuse. Rotate the fuse out of the holder 27, replace with a new fuse, then
rotate it back to the holder again.
Installing and Replacing the bulb
Please use the specified lamp.
1. Loosing the screw 10
2. Hold the bulb 09 after you wrap it with gauze
or other protection materials, and then insert its
pin deeply into the jack in the lamp holder.
3. During microscope using or soon after it is
turned off, the bulb, the lamp house and nearby
parts will be very hot and will cause serious
burns. Please turn the main switch to “0” (off)
and disconnect the power plug, and make sure
the bulb, the lamp room and periphery are all
cool. Then, you can do your replacing.
09
10
Insert the bulb gently. Squeezing too hard will damage the bulb.
To prevent reduced bulb life or cracking, do not touch the bulb with bare hands. If
fingerprints are accidentally left on the bulb, wipe the bulb with a soft cloth.
Adjustment and Operation
Brightness Adjustment
1. Connect the power cord and set the main
switch 08 to “ I ”state (ON).
2. Turning the brightness adjustment knob 26.
26
Placing the Specimen
1. Place the specimen the center of the
mechanical stage and use the stage clips to
clamp it.
2. Turn the portrait 14 and lateral adjustment
knob 15 of the mechanical ruler, move the
specimen to the required position.
Be careful when changing the
objective. If you finish the observation
with the short working distance
objective, and want to change
another one, becareful of not letting
the objective touch the specimen.
14
15
ENGLISH
Focusing the Specimen
1. Focus the specimen with 10x objective. To
avoid the objective touching the specimen during
focusing, you should raise the mechanical stage
to let the specimen close to the objective at first,
then slowly separate them to bring the specimen
to focus.
Turn the coarse focus knob 25 conversely to
lower the specimen and search images in the
24
10×ocular simultaneously, and thenuse the fine
25 23
knob 24 to focus. After that, you can replace with
other magnification objectives safely, and focus
without the risk of damaging the specimen.
To make the observation more convenient, you can use the locking set 23 to fix the stage in
a vertical direction.
Condenser Adjustment
Turn the condenser focus knob 20 to move the
condenser up and down. Raise the condenser
when using the high magnification objective, and
descend it when using the low magnification one.
21
20
1. Focus the specimen with 10x objective.
2. Adjust the condenser focus knob 20 to get a
clear image of the field iris diaphragm.
3. Turn the condenser centering knobs 21 to
center the image of field iris diaphragm in the
field of view.
The condenser and the objectiveare
coaxial. It has been adjusted before leaving factory, so the user needn’t to adjust
them by self
The highest position of the condenser has been adjusted too. It also needn’t any
user’s operation. (The top surface of the condenser is 0.03 mm - 0.4 mm lower
than the stage top surface.)
Aperture Iris Diaphragm Adjustment
Turn the aperture iris diaphragm stick 05 to
adjust the aperture iris diaphragm.
The aperture iris diaphragm is
designed for the adjustment of
the numerical aperture,not for the
brightness.
Generally, setting the aperture iris diaphragm
to 70- 80% of the N.A. of the objective in use
will provide an image with good contrast. If you
want to observe the image of the aperture iris
diaphragm, remove one eyepiece and look
through the tube. You will see a dark circle
encroaching on the bottom of the tube.
05
ENGLISH
Adjusting the Interpupillary Distance
The interpupillary distance range: 55mm ~ 75mm
While looking through the eyepieces, move both
eyepieces round until the left and right fields of
view coincide completely.
Adjusting the Diopter
1. Turn the eyepiece 01 to adjust the diopter while
looking through it.
The diopter range of the eyepiece
is±5 diopter. The number aligned to
the line on the viewing head is the
diopter in use.
Adjusting the tension adjustment collar
Turn the tension adjustment collar 18 with your
fingers. When the collar is turned in the direction
of the arrow, the tension of the coarse adjustment
knob 17 increases. Turning the collar in the
opposite direction decreases the tension.
If the nosepiece descends on its own or if the
specimen gets out of focus quickly even when it
is brought into focus using the fine adjustment
knob 16, it means the tension of the coarse
adjustment knob is too low. Turn the collar in the
direction of the arrow to increase the tension.
01
18
16
17
ENGLISH
Technical Specifications
Main Specifications
Optical System
Viewing Head
Limited optical system/Infinite optical system
Seidentopf Binocular Head, 30°Inclined,Interpupillary Distance 4875 mm
WF 10X/18 WF 10X/20
Backward Quadruple Nosepiece
Achromatic Objective/Infinite Semi-plan Objective 4×, 10×, 40×, 100×
Coaxial Coarse and Fine Adjustment, Moving Range 0.002mm <,Fine
Division 20mm
Abbe Condenser, NA1.25
Double Layers Mechanical Stage160×140, Moving Range74×50
Timing Belt Stage150×139mm, Moving Range 75×52mm
1W S-LED Lamp
Eyepiece
Nosepiece
Objective
Focusing
Condenser
Stage
Illumination
Eyepiece and objectives
Achromatic Objective
Magnification
4×
10×
40×
100×
Numerical
Aperture NA
0.10
0.25
0.65
1.25
Focal Length Focal distance
Working
(mm)
(mm)
Length (mm)
0.17
31.05
37.5
0.17
17.13
7.316
0.17
4.65
0.632
0.17
2.906
0.198
Objective
Focal Length Focal distance
Working
(mm)
(mm)
Length (mm)
0.17
45
16.8
0.17
18
5.8
0.17
4.5
1.43
0.17
1.8
0.13
Objective
dry
dry
dry
oil
Infinite Semi-plan Objective
Magnification
4×
10×
40×
100×
Numerical
Aperture NA
0.10
0.25
0.65
1.25
dry
dry
dry
oil
Eyepiece
Eyepiece
Wide field eyepiece
Wide field eyepiece
Magnification
10×
10×
Focal Length (mm)
24.95
25
Field of View (mm)
Φ18
Φ20
Total Magnification
Eyepiece
Objective
Total Magnification
10×
4×
40×
10×
10×
100×
10×
40×
400×
10×
100×
1000×
ENGLISH
Troubleshooting Guide
Optical System
TROUBLE
1. The edge of the
field of view is dark
or the brightness is
not uniform
CAUSE
The nosepiece is not in the located
position (objective and light path not
coaxial)
The surface of the lamp becomes black
A lens (the objective, condenser,
eyepiece or collector) is dirty.
2. Dirt or dust is Dirt/dust on the specimen
visible in the field Dirt/dust on the eyepieces
of view
3. Visibility is poor Specimen is not covered
Image is not sharp; The thickness of the cover glass is not
Contrast is poor;
suitable
D e t a i l s a r e Specimen is placed reversely
indistinct
Dry objective has oil on it. (especially
for 40X objectives)
A lens (the objective, condenser,
eyepiece or collector) is dirty.
Immersion oil is not used with the 100x
objective
Air bubbles existed in the immersion oil
The aperture iris diaphragm is stopped
down too far
Dirt or dust on the eyepiece
4 . O n e s i d e o f Condenser is not properly centered
image is blurred
The nosepiece is not properly engaged
SOLUTION
Locate the nosepiece properly
where it clicks
Change a new lamp bulb
Clean it thoroughly
Replace with a clean specimen
Clean them
Add cover glass on it
Use standard cover glass with
thickness of 0.17mm
Turn it over
Wipe the oil
Clean it
Use specified oil
Eliminate the bubble
A dj ust the aperture i ri s
diaphragm properly
Clean it
Center the condenser with the
centering screw
Engage the nosepiece
properly
The specimen is not clamped
Clamp it with stage clips
5. The brightness is The aperture iris diaphragm is too small Adjust it properly
not enough
The condenser is too low
Adjust it properly
A lens (the objective, condenser, Clean it
eyepiece or collector) is dirty.
Mechanical System
TROUBLE
CAUSE
1. Field of view of one eye Interpupillary distance is incorrect
does not match that of the
other
2. Observation is tiring
The diopter is not proper
The brightness of the illumination
is not proper for eyes
SOLUTION
Adjust interpupillary
distance
Adjust the diopter properly
Adjust the lamp voltage
ENGLISH
Electrical System
TROUBLE
CAUSE
1. The bulb cannot light No power supply
SOLUTION
Check the power cord
connection
The pin of the bulb doesn’t insert Insert the pin deeply
properly
The bulb broken
Replace with a new one
2. The bulb burns out The bulb is not the specified one; Use the specified bulb;
suddenly
The voltage is too high
lower the voltage
3. The illumination is the voltage is too low
Raise the voltage
not bright enough
The bulb is about to burn out
Replace with a new one
4. Image flicks
The bulb is not inserted deeply
Check its connection
Disposal: The product must not be disposed of along with other domestic waste.
The users must dispose of this equipment by bringing it to a specific recycling
point for electric and electronic equipment.
For further information on recycling points contact the local authorities, the local
recycling center or the shop where the product was purchased. If the equipment
is not disposed of correctly, fines or penalties may be applied in accordance with
the national legislation and regulations.
GIMA WARRANTY CONDITIONS
Congratulations for purchasing a GIMA product.
This product meets high qualitative standards both as regards the material and the production.
The warranty is valid for 12 months from the date of supply of GIMA.
During the period of validity of the warranty, GIMA will repair and/or replace free of charge all
the defected parts due to production reasons. Labor costs and personnel traveling expenses
and packaging not included.
All components subject to wear are not included in the warranty.
The repair or replacement performed during the warranty period shall not extend the warranty.
The warranty is void in the following cases: repairs performed by unauthorized personnel or
with non-original spare parts, defects caused by negligence or incorrect use.
GIMA cannot be held responsible for malfunctioning on electronic devices or software due
to outside agents such as: voltage changes, electro-magnetic fields, radio interferences, etc.
The warranty is void if the above regulations are not observed and if the serial code (if available)
has been removed, cancelled or changed.
The defected products must be returned only to the dealer the product was purchased from.
Products sent to GIMA will be rejected.
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