Leica DM500, DM500 B
Manual
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Contents
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Manual
Leica DM 500, DM500 B
3
Safety concept
The individual modules of the Leica DM micros-
copy series include an interactive CD-ROM with
all relevant user manuals several languages.
Keep it in a safe place, and readily accessible
to the user. User manuals and updates are also
available for you to download and print from
our web site at
You can combine individual system articles with
articles from external suppliers. Please read the
user manual and the safety requirements of the
supplier.
Before installing, operating or using the instru-
ments, read the user manuals listed above. In
particular, please observe all safety instruc-
tions.
This operating manual describes the special
functions of the individual modules of the Leica
DM microscopy series and contains important
instructions for their operational safety, main-
tenance, and accessories.
To maintain the unit in its original condition
and to ensure safe operation, the user must
follow the instructions and warnings contained
in these user manuals.
The "Safety concept" booklet contains addi-
tional safety information regarding the service
work, requirements and the handling of micro-
scope, accessories and electrical accessories as
well as general safety instructions.
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Manual
Leica DM 500, DM500 B
5
Symbols used in this operating manual
Danger due to hot surface.
Warning of a danger
This symbol indicates especially impor-
tant information that must be read and
This symbol warns against touching
accessible hot surfaces, e.g. those of
light bulbs.
•
complied with.
Failure to comply can cause the following:
For Model DM500 B (Battery Version)
Dispose of old batteries and defective
appliances in accordance with the stat-
utory regulations.
Ϙ
Hazards to personnel
Ϙ
Functional disturbances or damaged instru-
ments
Warning of hazardous electrical voltage
This symbol indicates especially impor-
tant information that is mandatory to
read and observe.
Important information
This symbol indicates additional infor-
mation or explanations that intend to
provide clarity.
Failure to comply can cause the following:
Ϙ
Hazards to personnel
Explanatory notes
ϐ
This symbol within the text points to addi-
tional information and explanations.
Ϙ
Functional disturbances or damaged
instruments
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Manual
Leica DM 500, DM500 B
6
Important Notes
Description
User Manual
Accessories from third-party suppliers
You can combine individual system articles with
articles from external suppliers. Please read the
user manual and the safety requirements of the
supplier.
The Leica DM500 and DM500 B microscope meets
today's state of the art of technology. Neverthe-
less, hazards may still arise during operation.
The potential risks are described below.
This user manual includes important instruc-
tions related to operating safety, maintenance
and accessories,
Your Leica DM500 or DM500 B micro-
scope comes with an interactive CD-ROM
with all relevant user manuals. Keep it in a safe
place, and readily accessible to the user. User
manuals and updates are also available for you
to download and print from our web site at
Before installing, operating or using the
instruments, it is required to read this
user manual. In particular, please observe all
safety instructions.
Original condition
•
To maintain the unit in its original condition
and to ensure safe operation, the user must
follow the instructions and warnings contained
in these user manuals.
Legal requirements
Contact address
Adhere to general and local regulations relat-
ing to accident prevention and environmental
protection.
Leica Microsystems (Switzerland) Ltd.
Industry Division
Max Schmidheiny Strasse 201
CH-9435 Heerbrugg (Switzerland)
EC Declaration of Conformity
Electricallyoperatedaccessoriesareconstructed
based on the state of the art of technology and
are provided with an EC Declaration of Confor-
mity.
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Manual
Leica DM 500, DM500 B
7
Instructions on use
Intended use
Place of use
Non-intended use
Using the instrument in any way
contrary to the specifications in the user
manual can lead to bodily harm and damage to
objects. Doing so can impair the functions of
the protective measures provided.
The Leica DM500 and DM500 B microscopes are
optical instrument which use magnification and
illumination to improve the visibility of objects.
It is used for observing and documenting.
Only use the instruments in closed, dust free
rooms and between +10 °C and +40 °C. Protect
the devices from oil, chemicals and extreme
humidity. If using the devices outdoors, protect
them from dust and moisture. Never use electri-
cal devices outdoors. Install electrical devices at
least 10 cm from the wall and away from flam-
mable substances.
•
The Leica DM500 and DM500 B microscopes
may be used only in closed rooms and must be
placed on a solid floor.
Never install any other plug (NEMA
5-15P) or unscrew any mechanical
components unless expressly instructed to do
so in the instructions.
The Leica DM500 or DM500 B microscopes can
be used in clean rooms without any problems.
Avoid large temperature fluctuations, direct
sunlight and vibrations. These conditions
can distort measurements and micrographic
images.
CAUTION: Risk of explosion if battery is
replaced by an incorrect type. Dispose
of used batteries according to the instructions.
Position the Leica DM500 or
•
DM500 B microscope so that it can be
disconnected from the power supply at any
time. The power cord must remain accessible at
all times, because the power supply is foreseen
as mains disconnecting device.
In warm and warm-damp climatic zones,
the individual components require
special care in order to prevent the build-up of
fungus.
The devices and accessories described in
this operating manual have been tested
for safety and potential hazards.
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Manual
Leica DM 500, DM500 B
8
Instructions on use (continued)
The responsible Leica affiliate must be
consulted whenever the instrument is
altered, modified or used in conjunction with
non-Leica components that are outside of the
scope of this manual.
Transport
Integration in third-party products
When installing Leica products into third-party
products, the manufacturer of the complete
system or its dealer is responsible for follow-
ing all applicable safety instructions, laws and
guidelines.
•
If at all possible, use the original packaging for
shipping or transporting individual modules.
In order to prevent damage from vibrations,
disassemble all moving parts that (according to
the user manual) can be assembled and disas-
sembled by the customer and pack them sepa-
rately.
Unauthorized alterations to the device
or noncompliant use shall void all rights
to any warranty claims.
•
Disposal
Disposal must comply with locally applicable
laws and regulations.
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Manual
Leica DM 500, DM500 B
9
Health risks and dangers of use
Health risks
The ergonomic design and construction of the
Leica microscopy series are intended to reduce
the exertion of the user to a minimum.
Dangers during use
Workplaces with microscopes facilitate
and improve the viewing task, but they
also impose high demands on the eyes and
holding muscles of the user. Depending on the
duration of uninterrupted work, asthenopia
and musculoskeletal problems may occur. For
this reason, appropriate measures for reduction
of the workload must be taken:
Ϙ
The Leica DM500 or DM500 B microscope
may only be connected to a grounded
socket.
Danger of infection
Direct contact with eyepieces is
potential transmission method for viral
infections of the eye.
a
Ϙ
The Leica DM500 or DM500 B microscope
may not be operated unless it is in proper
functioning condition.
•
The risk can be kept to a minimum by
using personal eyepieces for each indi-
vidual or detachable eyecups.
LED Klasse 1 /Class 1 LED Product
The illumination meets laser class 1 require-
ments in accordance with IEC 60825-1 "Safety
of LED products".
Ϙ
Ϙ
Ϙ
Optimum workplace layout
Frequent changes of activity
Thorough training of the personnel, giving
consideration to ergonomic and organiza-
tional aspects
Caution: Use of controls or adjustments or
performance of procedures other than those
specified herein may result in hazardous radia-
tion exposure!
Class 1
LED class 1
LED Product
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Manual
Leica DM 500, DM500 B
10
Information for the person responsible for the instrument
Information for the person responsible for
the instrument
Ϙ
Ϙ
Only original Leica replacement parts may
be used in servicing the product.
Ϙ
Ϙ
Do not use the Leica DM500 or DM500 B
microscope unless it is in perfect condition.
Ϙ
Ϙ
Ϙ
Ϙ
Ϙ
Ensure that the Leica DM500 or DM500 B
microscope is used only by qualified person-
nel.
After service work or technical modifica-
tions, the unit must be reconfigured with
observance to our technical requirements.
Inform your Leica representative or Leica
Microsystems (Schweiz) AG, Industry Divi-
sion, 9435 Heerbrugg, Switzerland, imme-
diately of any product defect that could
potentially cause injury or harm.
Ensure that this user manual is always avail-
able at the Leica DM500 or DM500 B micro-
scope.
Ϙ
If the unit is modified or serviced by unau-
thorized persons, is improperly maintained
(as long as maintenance was not carried
out by us), or is handled improperly, Leica
will not accept any liability.
Carry out regular inspections to make
certain that the authorized users are adher-
ing to safety requirements.
Ϙ
If you use accessories made by third-party
manufacturers with the Leica DM500 or
DM500 B microscope, be sure that each
such manufacturer confirms that the
combination is safe to use and observe the
product's user manual.
Ϙ
The electric installation in the building
must conform to the national standard, e.g.
current-operated ground leakage protec-
tion (fault-current protection) is suggested.
When instructing new users, do so thor-
oughly and explain the meanings of the
warning signs and messages.
Ϙ
Modifications and maintenance of the Leica
DM500 or DM500 B microscope may only
be performed by professionals expressly
authorized by Leica.
Assign individual responsibilities for start-
ing, operating and servicing the instru-
ment and monitor the observance of these
responsibilities.
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Manual
Leica DM 500, DM500 B
11
Care instructions
General instructions
Cleaning coated parts and plastic parts
Cleaning glass surfaces
Ϙ
Protect the Leica DM500 or DM500 B micro-
scope against damp, vapors, acids, alkalis,
and corrosive substances. Do not store
chemicals in the vicinity.
Ϙ
Ϙ
Ϙ
Ϙ
Ϙ
Dust and dirt particles should be removed
with a soft brush or lint-free cotton cloth.
Ϙ
Remove dust using a fine, dry and grease-
free brush made from hair, by blowing with
a squeeze blower, or by using a vacuum.
Remove coarse debris with a moistened
disposable cloth.
Ϙ
Ϙ
Remove dirt using a clean cloth that has
been moistened with distilled water.
Ϙ
Protect the Leica DM500 or DM500 B micro-
scope from oil and grease. Never grease or
oil mechanical parts or sliding surfaces.
Clinging dirt can be removed using petro-
leum ether or alcohol
Remove tough dirt using alcohol, chloro-
form or petroleum ether.
Ϙ
Ϙ
Follow the instructions of the disinfectant
manufacturer.
Acetone, xylene or nitro-containing thin-
ners must NOT be used.
It is advisable to enter a service agreement
with Leica Service.
Never use chemicals to clean colored
surfaces or accessories with rubberized
parts. This could damage the surfaces,
and specimens could be contaminated by
abraded particles.
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Manual
Leica DM 500, DM500 B
12
Accessories, maintenance and repair
Accessories
Maintenance
Repairs and service work
Only the following accessories may be used
with the Leica DM500 or DM500 B microscope:
Ϙ
The Leica DM500 and DM500 B micro-
scopes are basically maintenance-free. To
ensure that they always operate safely and
reliably, we recommend that you take the
precaution of contacting the responsible
service organization.
Ϙ
Ϙ
Ϙ
Only original Leica Microsystems spare
parts may be used.
Ϙ
The Leica accessories described in this user
manual.
Before opening the instruments, switch off
the power and unplug the power cable.
Ϙ
Other accessories, provided that these have
been expressly approved by Leica as being
technically safe in this context.
Avoid contact with powered electrical
circuits, which can lead to injury.
You can arrange for periodic inspections
or, if appropriate, conclude a mainte-
nance contract with them.
Service address
In case of problems, please contact us as
follows:
Ϙ
It is advisable to enter a service agreement
with Leica Service.
Leica Microsystems (Switzerland) Ltd.
Industry Division
Ϙ
For maintenance and repair, only OEM spare
parts may be used.
Max Schmidheiny Strasse 201
CH-9435 Heerbrugg (Switzerland)
Phone +41 71 726 33 28
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Manual
Leica DM 500, DM500 B
13
Electrical data and ambient conditions
Fuse Replacement
Environment
Unplug the instrument before changing any fuses. The
Leica DM500 has two fuses, which are located behind the
power cord receptacle.
Temperature for use
+10 °C … +40 °C
-20 °C … +52 °C
+50 °F … +104 °F
25 mm on 50 mm hard wood
100 g / 6 ms
Storage temperature
Manipulation shock
Use only fuse type: 5×20 mm, 1 Amp/250V, Quick acting
Transport shock (unpacked)
Transport shock (packed)
Transport vibrations (unpacked)
•
(# 13RFAG30003)
800 mm free fall
5–200 Hz / 1.5 g
Electrical data
DM500
Atmospheric pressure "in use" and for storage: 500–1060 mBar
Input: 100-240 VAC, 50/60 Hz, 5 W (3 W LED)
Humidity “in use” and for storage:
Installation Category II (Overvoltage Category)
Pollution degree 2
20–90%
DM500 B
Input: 100-240 VAC, 50/60 Hz, 0.5-0.2 A OR
4× 1.2 V AA rechargeable batteries
Use only 1.2 Volt NiMH type AA rechargeable batteries
with a maximum of 2700 mAh. Do not use non-recharge-
able AA batteries.
•
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Leica DM 500, DM500 B
Manual
14
Congratulations!
Thank you for purchasing the Leica DM500 or
DM500 B Compound Microscope from Leica
Microsystems. This model’s exclusive design
features and full range of accessories make it
a truly versatile, high-quality instrument for
educational and routine clinical applications.
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Manual
Leica DM 500, DM500 B
16
Unpacking
Ϙ
Ϙ
Ϙ
Carefully remove the microscope and any
components from the packing carton.
Check the components against the planned
configuration.
Optional items such as contrast accessories,
camera adapters, cameras, and carrying
cases are not shipped as part of the stan-
dard equipment. These items are delivered
in separate packages.
Ϙ
Please do not discard any of the packing
materials. They should be used for safely
storing and transporting the instrument
should the need arise.
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Manual
Leica DM 500, DM500 B
17
Attaching the viewing Tubes
Tools used
There are two types of viewing tube.
Identify which viewing tube you have:
1. Slightly unscrew the set screw (located on
top of the stand) with the Allen key tool
provided.
Ϙ
Allen key
2. Insert the dovetail into the stand support
and tighten the set screw firmly without
forcing it. This precisely positions the view-
ing tube onto the optical axis of the micro-
scope, regardless of the selected rotation.
Type 1: Leica EZ viewing tube with integrated
eyepieces.
Type 2: Standard viewing tube with separate
eyepieces
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Leica DM 500, DM500 B
19
Leica EZ Viewing Tube – integrated eyepieces
1. To use the captive thumbscrew, completely
2. Position the Leica EZ viewing tube back in
place on the stand.
remove the set screw that comes with the
stand.
Leica EZ viewing tube with integrated eyepieces.
To rotate the Leica EZ viewing tube,
either loosen the set screw on the stand
or replace the set screw with the (optional)
captive thumbscrew.
3. Attach the captive thumbscrew using the
wrench tool that comes with the captive
thumbscrew.
Be sure the thumbscrew portion of the
captive thumbscrew is fully loosened
before attaching it to the stand:
•
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Leica DM 500, DM500 B
20
Leica EZ Viewing Tube – integrated eyepieces (cont.)
You can now safely rotate the Leica EZ
viewing tube by loosening the captive
thumbscrew, rotating the viewing tube, and
tightening the captive thumbscrew again.
The eyepieces are already integrated
with the Leica EZ viewing tube and are
pre-adjusted for corrected vision; therefore no
eyepiece adjustment or insertion is necessary.
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Leica DM 500, DM500 B
21
Leica Standard Viewing Tube – separated eyepieces
1. Insert the eyepieces into the eyetubes.
2. Lock the eyepieces into the eyetubes by
tightening the silver screws on the under-
side of the eyetubes with a standard Cross
type (Phillips) screwdriver (not provided).
Standard viewing tube; eyetubes do not yet
contain the eyepieces
The standard viewing tube has a rotat-
able dovetail. Therefore, you can now
rotate the standard viewing tube freely in any
orientation.
The eyepieces will still rotate, but they
will be captive in the eyetubes.
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Leica DM 500, DM500 B
22
Eyeguards
If you wear eyeglasses for microscope
If you have purchased a standard micro-
scope configuration, you will notice that
viewing, keep the rubber eyeguards
folded down. If you do not wear eyeglasses,
you may find it useful to unfold the rubber
eyeguards in order to help block out ambient
room light.
the objectives are already installed on the nose-
piece, and the substage condenser is already
installed on the stand. In this case, go to section
Leica DM500 or DM500 B by components and
not by standard configuration, please continue
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Manual
Leica DM 500, DM500 B
23
Installing Objectives and Substage Condenser
Installing Objectives
Always rotate the nosepiece by using
the knurled nosepiece ring.
Substage Condenser
The Leica DM500’s and DM500 B's
substage condenser is pre-installed, pre-
focused, and pre-centered. No additional instal-
lation or alignment is required.
•
1. As you rotate the nosepiece clockwise,
attach the objectives by screwing them
into the nosepiece holes starting with the
lowest magnification and advancing to the
highest magnification.
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Leica DM 500, DM500 B
24
Turning on the microscope
As a safety precaution, the power cord
has been grounded to the microscope
base. Never use an adapter between the power
cord and the power source; it will render the
grounding feature ineffective.
If you have a DM500 B with a rechargeable
base:
1. Insert the batteries in the underside of the
base
Setting the Illumination Intensity
Set the illumination control knob
•
(located on the bottom left of the
microscope stand) to the lowest setting to
start. The illumination control knob allows you
to adjust the intensity of light produced by the
illumination system.
2. If the power cord is not already attached,
attach it securely to the power supply, if
you use a DM500 B with a rechargeable
base.
Work Surface
Always use your microscope on a hard,
•
stable surface.
3. Plug in the power supply or the optional
solar panel in order to charge the batteries
(allow 4 hours minimum to fully charge the
batteries)
Power Cord
If the power cord is not already
attached, attach it securely to the back
•
After being fully charged the batteries
will provide 6-8 hours of operation.
of the microscop.
If necessary, the microscope can func-
tion without batteries assuming either
the power supply or optional solar panel is
plugged in.
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Leica DM 500, DM500 B
26
Using the Condenser
Plug in and Turn on the Microscope
1. Plug the microscope power cord into a suit-
able grounded electrical outlet.
Using the Condenser
The condenser is furnished with an iris
diaphragm, which can be adjusted to
match the effective numerical aperture of each
objective.
2. To start, fully open the iris diaphragm of
the aperture condenser by rotating the
condenser ring to the extreme right.
A grounded 3-wire cord is provided.
1. To open and close the iris diaphragm,
simply rotate the knurled condenser ring to
the right or to the left so that the line on
the rotating ring aligns with the objective
magnification in use.
2. Turn the microscope on using the switch on
the bottom right-hand side of the micro-
scope stand.
On/Off switch is located on the bottom right
hand side of the stand
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Leica DM 500, DM500 B
27
Prepare to View a Specimen Slide
Prepare to View a Specimen Slide
1. Place a specimen slide on the stage by slid-
ing the specimen slide forward into the
slide grips.
2. Use the X/Y stage control to position the
slide so a portion of the specimen is under
the objective in use.
Slide grips hold the slide in place.
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Leica DM 500, DM500 B
28
Focusing
Focusing
3. Look into the eyepieces and adjust the illu-
mination intensity so that it is comfortable
for viewing.
1. Rotate the nosepiece (using the knurled
nosepiece ring) to move the lowest magni-
fication objective into working position.
2. Raise the stage by rotating the coarse
adjustment knob to its positive stop at the
highest position.
The Leica DM500 or DM500 B microscope
stand has been factory-adjusted so that
the stage focus can be found within 1.5 rotations
of the fine focus adjustment from this position.
4. Using the fine adjustment knob, bring the
specimen into sharp focus.
Coarse adjustment knob
Fine adjustment knob
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Leica DM 500, DM500 B
29
Viewing Tube Adjustment
1. Adjust the eyetubes for your interpupillary
distance. Fold or unfold the eyetubes to
decrease or increase the distance between
the eyepieces until you see one illuminated
circle.
Leica EZ Viewing Tube
Standard Tube with One or Two Focusing
Eyepieces
If you are using a standard viewing tube with
one or two focusing eyepieces, you need to
make some adjustments:
If you are using a Leica EZ viewing tube, which
already has the eyepieces integrated with
the eyetubes, there are no additional adjust-
ments necessary. Be sure you are wearing your
eyeglasses or contact lenses. Go on to section
1. Set the focusing eyepieces to the "0" diopter
setting.
Standard Viewing Tube with Two Fixed
Eyepieces
If you are using a standard viewing tube with
two fixed eyepieces (no focusing eyepieces),
there are no additional adjustments neces-
sary. Be sure you are wearing your eyeglasses
or contact lenses. Go on to section "Oil Immer-
sion" on page 32.
The viewing tubes maintain a constant
tube length for all interpupillary settings.
This means that a change of interpupillary
distance does not affect parfocality, magnifica-
tion, or calibrations that depend on magnifica-
tion.
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Leica DM 500, DM500 B
30
Viewing Tube Adjustment (cont.)
If you are comfortable wearing your
corrective lenses (contact lenses or
eyeglasses) for microscope viewing, leave them
on and your adjustments will be minimal.
3. Now switch to look only through the other
5. Now switch to a high magnification objec-
tive (not an oil objective) and focus the
microscope while viewing with both eyes.
eyepiece (focusing eyepiece) with your
other eye. This time, focus the specimen by
using the focusing capability in the focus-
ing eyepiece.
The higher magnifications have a shal-
lower depth of field. Therefore, after
focusing with a high magnification, you will
find that when you change to lower magnifi-
cations, you only have to adjust the fine focus
slightly, if at all.
2. Focus on the specimen using the fine
adjustment knob of the microscope while
looking only through one of the eyepieces
(if you have one focusable and one non-
focusable eyepiece, look through the non-
focusable eyepiece at this time). To help
focus, cover or close the other eye.
Do not raise or lower the stage to focus.
•
4. Grip the knurl on the focusing eyepiece
with one hand and rotate the top of the
eyepiece with the other hand until the
specimen is in focus with this eye and this
focusing eyepiece. This corrects for any
vision differences between your right eye
and left eye.
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Leica DM 500, DM500 B
31
Oil Immersion Technique
Oil Immersion Technique
1. Find the field of view on the slide that you
would like to inspect.
3. Place a drop of Leica Immersion Oil on the
specimen slide on the area of the specimen
that you were inspecting.
5. Raise the stage slowly using the coarse
focus knob until the drop of oil on the spec-
imen slide just comes in contact with the
front of the oil immersion objective lens.
2. Lower the stage to its lowest position using
the coarse focus knob.
4. Swing the oil immersion objective in place
(the objective will be labeled "OIL")
6. Grip the knurled nosepiece ring and rock
the objective back and forth to eliminate
any air bubbles, then settle the oil objec-
tive into position with the oil between the
front lens of the objective and the speci-
men slide.
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Leica DM 500, DM500 B
32
Oil Immersion Technique (cont.)
7. Look through the microscope and slowly
rotate the fine focus knob to raise the stage
until the specimen is in focus.
8. When finished using the oil immersion
objective, be sure to clean the front of the
objective, the specimen slide, and any
other surfaces that the oil contacted using
the instructions in section "Care of the
Microscope" on page 37.
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Leica DM 500, DM500 B
33
General maintenance
General
Ϙ
The cord wrap allows you to wrap the cord
in such a way that only the length you need
is extended.
Ϙ
Ϙ
Ϙ
If any optical surface becomes coated with
dust or dirt, clean the surface by blowing it
off with a syringe or brushing it off with a
camel hair brush before attempting to wipe
the surface clean.
Always carry the microscope using two
•
hands. There is a handle on the back of
the microscope and an undercut in the front for
this purpose.
Optical surfaces should be cleaned with a
lint-free cloth, lens tissue or a cotton swab
moistened with methanol or a commer-
cially available glass cleaner. Do not use
alcohol.
It is very important to avoid the excessive
use of solvents, so use them sparingly. The
lint-free cloth, lens tissue or cotton swab
should be moistened with solvent, but
not be wet enough for the solvent to seep
around the lens.
Ϙ
Ϙ
Keep all optical components clean. Clean-
liness is important for maintaining good
optical performance.
The microscope should always be covered
with the plastic dust cover (provided with
the instrument) when it is not in use.
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Leica DM 500, DM500 B
37
General maintenance (cont.)
Ϙ
No part of the microscope is quite so vulner-
able to collecting dirt, dust, and oil as the
front lens of the objective. Whenever you
encounter lack of contrast, cloudiness or
poor definition, carefully check the condi-
tion of the front lens with a magnifier.
Make sure that the cotton tip contacts the
concave lens surface. Check the objective
with a magnifier after cleaning.
Ϙ
If you need to remove the microscope’s
viewing body, be careful not to accidentally
touch the outer lens surface (located on
the underside of the body). Fingerprints on
this surface will reduce image clarity. This
lens can be cleaned in the same manner as
objectives and eyepieces.
Ϙ
The lower magnification objectives have
fairly large front lenses and can be cleaned
with a cloth or lens tissue wrapped around
a finger and moistened with methanol.
Ϙ
Cleaning 40× and 100× objectives requires
more care. Note: To achieve the high degree
of flatness obtained with higher magnifica-
tion objectives, the objective has a small
concave front lens of fairly short radius or
curvature. The surface of this front lens can
be readily cleaned with a toothpick covered
with a cotton tip, or with a small cotton
swab. Moisten the cotton with methanol
and squeeze it almost dry (do not use alco-
hol). Wipe the front lens lightly without
applying undue force or scrubbing action.
Illumination
The Leica DM500 and DM500 B uses LED
Ϙ
illumination. Therefore, no lamp changing
is required for the life of the microscope.
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Manual
Leica DM 500, DM500 B
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Manual
Leica DM 500, DM500 B
40
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual
Leica DM 500, DM500 B
41
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual
Leica DM 500, DM500 B
42
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual
Leica DM 500, DM500 B
43
Download from Www.Somanuals.com. All Manuals Search And Download.
Manual
Leica DM 500, DM500 B
44
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