Kern OBS 115 Bruksanvisning
Les nedenfor 📖 manual på norsk for Kern OBS 115 (22 sider) i kategorien Mikroskop. Denne guiden var nyttig for 8 personer og ble vurdert med 4.5 stjerner i gjennomsnitt av 2 brukere
Side 1/22

OBS-1- -e-1 BA 912
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@kern-sohn.com
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
User instructions
Transmitted light microscopeschool
KERN S-1 OB
OBS 101, OBS 102, OBS 103, OBS 104,
OBS 105, OBS 106
OBS 111, OBS 112, OBS 113, OBS 114,
OBS 115, OBS 116
Version 1.2
01/ 9 201


OBS-1- -e-1 2 BA 912
GB
KERN OBS-1
Version 2 01/2019 1.
User instructions
Transmitted light microscope
Table of contents
1 Before 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
2 Nomenclature ............................................................................... 6
3 Technical data / Features ............................................................ 7
4 Assembly .................................................................................... 10
4.1 Microscope head .................................................................................................................... 10
4.2 Objectives ............................................................................................................................... 10
4.3 Eyepieces ................................................................................................................................ 10
4.4 Condenser ............................................................................................................................... 10
5 Operation .................................................................................... 11
5.1 Getting started ........................................................................................................................ 11
5.2 (Pre-) focussing ...................................................................................................................... 12
5.3 Adjusting the interpupillary distance ................................................................................... 13
5.4 Dioptre adjustment ................................................................................................................. 13
5.5 Adjusting the magnication .................................................................................................. 14
5.6 Adjusting the illumination ..................................................................................................... 15
5.7 Using rechargeable batteries ................................................................................................ 16
5.8 Using oil immersion objectives ............................................................................................ 17
6 Changing the bulb .....................................................................18
7 Trouble shooting ........................................................................ 19
8 Service ........................................................................................ 21
9 Disposal ...................................................................................... 21
10 Further information .................................................................... 21

3 -1- -e-1 OBS BA 912
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 oor 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 nger 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 specications, then
res or other damage to the device could occur.
The main switch must also be switched o 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, only carry out these
procedures when the power is disconnected.
The rechargeable batteries must be replaced by qualied
electricians only.

OBS-1- -e-1 4 BA 912
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 o 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.

OBS-1- -e-1 6 BA 912
2 Nomenclature

7 -1- -e-1 OBS BA 912
3 Technical data / Features
Product dimensions:
130x300x310 mm
Packaging dimensions:
410x280x210 mm
Net weight:
3 kg
Gross weight:
5 kg
Input voltage:
DC 6V, 500mA

OBS-1- -e-1 8 BA 912

OBS-1- -e-1 BA 912 10
4 Assembly
4.1 Microscope head
Inside the packaging the microscope head is already mounted but inclined towards
the rear. In order to turn it to the front you must loosen the xing screw on the tube
connection point and after the turning fix it again with the screw. In case of removing
the head completely from the housing, you should always make sure that you do not
touch the lenses with your bare ngers and that no dust enters the apertures.
4.2 Objectives
All four objectives are already mounted to the nosepiece. After removing the
protective foil they are ready for use. They are ranged in such a way that if you turn
the nosepiece clockwise, the objective with the next higher magnication appears.
When the objectives need to be dismounted, you should always make sure that you
do not touch the lenses with your bare ngers and that no dust enters the apertures.
For objectives which are marked “OIL”, you must use an immersion oil with the
lowest level of inherent uorescence.
4.3 Eyepieces
You must always use eyepieces with the same magnication for both eyes. These
are already placed onto the tube connectors and each is xed with a small silver
screw under the eyepiece on the tube connectors, so that they are turnable but you
cannot pull them out of the tube When changing the eyepieces, you must loosen .
these screws and once the new eyepiece is tted, then they must be -tightened. re
You should always make sure that you do not touch the lenses with your bare fingers
and that no dust enters the apertures.
4.4 Condenser
The condenser is rmly fixed onto a holding ring (condenser holder) underneath the
microscope stage. The lever for the aperture diaphragm is directed towards the front.
There is the ability to adjust the height of the condenser, but not to centre it.
When using the silver lever on the side of the condenser appropriately, it can be
moved up and down.
You should avoid touching the optical lenses with bare ngers.

OBS-1- -e-1 BA 912 14
5.5 Adjusting the magnication
After prefocussing has been carried out using the objective with the lowest
magnication (see section 5.2), you can then adjust the overall magnication using
the nosepiece, as necessary. By turning the nosepiece you can bring any one of the
four other objectives into the beam path.
When adjusting the nosepiece, you must take the following points into account:
- The required objective must be properly locked in
place at all times.
- The nosepiece should not be rotated by holding
individual objectives, you should use the silver
ring above the objectives . (see illustration)
- When rotating the nosepiece you must always make sure that the objective which
is about to be positioned in the beam path does not touch the object holder. This
can lead to signicant damage to the objective lens.
We recommend that you always check from the side to make sure that there is
sucient leeway. If this should not be the case, the specimen stage must be
lowered accordingly.
If you have focussed the object to be observed for a specic magnication, then if
you select the objective with the next greatest magnification, then the object will be
slightly out of focus. Use the ne adjustment knob to make a slight adjustment and
restore the focus.
Produkspesifikasjoner
Merke: | Kern |
Kategori: | Mikroskop |
Modell: | OBS 115 |
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