KERN OLM 170 User manual

OLM-170-BA-e-2310
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-mail: [email protected]
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
User instructions
Metallurgical inverted microscope
KERN OLM 170
OLM 170
Version 1.0
01/2023

OLM-170-BA-e-2310 2
GB
KERN OLM 170
Version 1.0 01/2023
User instructions
Metallurgical inverted microscope
Table of contents
1Before use ....................................................................................3
1.1 General notes............................................................................................................................ 3
1.2 Notes on the electrical system................................................................................................ 3
1.3 Storage ...................................................................................................................................... 4
1.4 Maintenance and cleaning....................................................................................................... 5
2Nomenclature...............................................................................6
3Technical data / Features ............................................................8
4Assembly....................................................................................10
4.1 Reflected light unit ................................................................................................................. 11
4.2 Objectives ............................................................................................................................... 13
4.3 Eyepieces................................................................................................................................ 14
4.4 Specimen stage ...................................................................................................................... 14
5Operation....................................................................................15
5.1 Getting started........................................................................................................................ 15
5.2 (Pre-) focussing ...................................................................................................................... 16
5.3 Adjusting the interpupillary distance................................................................................... 17
5.4 Diopter adjustment................................................................................................................. 17
5.5 Adjusting the magnification.................................................................................................. 18
5.6 Using eye cups ....................................................................................................................... 19
5.7 Adjusting the illumination ..................................................................................................... 20
6Changing the bulb .....................................................................21
7Using optional accessories.......................................................22
7.1 Camera connection ................................................................................................................ 22
8Trouble shooting........................................................................23
9Service........................................................................................25
10 Disposal......................................................................................25
11 Further information....................................................................25

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1 Before use
1.1 General notes
You must open the packaging carefully, to make sure that none of the accessories in
the packaging fall on the floor and get broken.
In general, microscopes should always be handled carefully because they are
sensitive precision instruments. When using or transporting the microscope it is
particularly important to avoid abrupt movements, as this may damage the optical
components.
You should also avoid getting dirt or finger prints on the lens surface, because in
most cases this will reduce image clarity.
To maintain the performance of the microscope, it must never be disassembled. So
components such as lenses and other optical elements should be left as they were
before use. Also the electrical parts on the rear and base of the device must not be
tampered with, as in this area there is an additional risk of triggering an electric
shock.
1.2 Notes on the electrical system
Before connecting to a mains power supply, you must make sure that you are using
the correct input voltage. The information to select the correct mains cable is located
on the device, on the rear of the product directly above the connection socket. You
must comply with this information. If you do not comply with these specifications, then
fires or other damage to the device could occur.
The main switch must also be switched off before the mains cable is connected. In
this way you will avoid triggering an electric shock.
If you are using an extension cable, then the mains cable you use must be earthed.
When carrying out any procedures whereby you come into contact with the electrical
system of the device, such as, for example, changing the bulb or fuse, only carry out
these procedures when the power is disconnected.

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1.3 Storage
You should ensure that the device is not exposed to direct sunlight, temperatures
which are too high or too low, vibrations, dust or a high level of humidity.
The ideal temperature range is between 0 and 40°C and a relative humidity of 85%
should not be exceeded.
The device should always be located on a rigid, smooth, horizontal surface.
When the microscope is not being used, you should cover it with the enclosed dust
protective cover. When doing this, the power supply is stopped by switching off at the
main switch and unplugging the mains cable. If the eyepieces are being stored
separately, the protective caps must be fitted to the tube connectors. In most cases,
if dust and dirt gets inside the optical unit of a microscope this can cause irreversible
errors or damage.
The best way to store accessories which consist of optical elements, such as, for
example, eyepieces and objectives, is in a dry box with desiccant.

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1.4 Maintenance and cleaning
In any event, the device must be kept clean and dusted regularly.
If any moisture should be occur, before you wipe down the device you must ensure
that the mains power is switched off.
When glass components become dirty, the best way to clean them is to wipe them
gently with a lint-free cloth.
To wipe oil stains or finger prints off the lens surface, moisten the lint free cloth with a
mixture of ether and alcohol (70 / 30 ratio) and use this to clean the lens.
You must be careful when handling ether and alcohol, as these are highly flammable
substances. You must therefore keep it away from naked flames and electrical
devices which can be switched on and off, and only use it in well-ventilated rooms.
However organic solutions of this type should not be used to clean other components
of the device. This could lead to damage to the paint finish. To do this, it is sufficient
to use a neutral cleaning product.
You could also use the following cleaning products to clean the optical components:
•Special cleaner for optical lenses
•Special optical cleaning cloths
•Bellows
•Brush
When handled correctly and checked regularly, the microscope should give many
years of efficient service.
Should repairs still be necessary, please contact your KERN dealer or our Technical
Department.

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2 Nomenclature

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3 Technical data / Features
Product dimension:
240×330×470 mm
Packing dimensions:
500x420x300 mm
Net weight:
7 kg
Gross weight:
9 kg
Input voltage:
AC 100-240V, 50-60Hz
Output voltage:
DC 5V, 1A

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4 Assembly