KERN OZL 441 Bedienungsanleitung

OZL-44-BA-e-1510

KERN & Sohn GmbH

Ziegelei1

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

Stereo zoom microscope

KERN OZL-44

OZL 441, OZL 445

Version 1.0

01/2015

OZL-44-BA-e-1510 2

KERN OZL-44

Version 1.0 01/2015

User instructions

Stereo zoom 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

3Basic data .......................................................................................7

4Assembly ........................................................................................8

5Operation and functionality ........................................................10

5.1 Getting started....................................................................................................................10

5.2 Adjusting the interpupillary distance................................................................................10

5.3 Adjusting the magnification...............................................................................................10

5.4 Dioptre adjustment and focussing ....................................................................................11

5.5 Adjusting the stand............................................................................................................12

5.6 Using eye cups / High Eye Point eyepieces......................................................................13

5.7 Lighting control..................................................................................................................14

5.8 Using external illumination units.......................................................................................14

5.9 Fitting and adjusting a camera..........................................................................................15

5.10 Changing the bulb..............................................................................................................16

6Optical data...................................................................................17

7Features ........................................................................................18

8Trouble shooting..........................................................................19

9Service...........................................................................................20

10 Disposal ........................................................................................20

11 Further information......................................................................20

3 OZL-44-BA-e-1510

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 in the 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 power supply is

located on the device, on the rear of the stand base. 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 lighting unit 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.

OZL-44-BA-e-1510 4

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.

For devices with pillar stands, the microscope holder must not be rotated back too

far. If you do this, there is a risk that the microscope could tip over.

When the microscope is not being used, you should fit the objective cap and cover

the microscope with the enclosed dust protective cover.

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.

5 OZL-44-BA-e-1510

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.

OZL-44-BA-e-1510 6

2 Nomenclature

7 OZL-44-BA-e-1510

3 Basic data

OZL 441 / OZL 445

Optical system

Greenough

Dimmable lighting

Yes

Magnification ratio

4,8:1

Tube

angled at 45°

Interpupillary distance

55 –75 mm

Dioptre adjustment

On both sides

Gross weight

5,5 kg

Net weight

4 kg

OZL 441

Magnification ratio

4:1

Packing dimensions WxDxH

370x300x475 mm

Product dimensions WxDxH

330x235x380 mm

OZL 445

Magnification ratio

4,8:1

Packing dimensions WxDxH

345x325x475 mm

Product dimensions WxDxH

300x235x360 mm

Standard configuration

Model

KERN

Tube

Eyepiece

Field of view

Objective

Zoom

Stand

Illumination

OZL 441

Trinocular

WF 10xØ 22 mm

Ø 23 –5,5

1x–4x

Pillar

1W LED (reflected light)

0.35W LED (transmitted light)

OZL 445

Binocular

HSWF 10xØ 21.5 mm

Ø 28 –6

0.75x –3.6x

Pillar

1W LED (reflected light)

0.35W LED (transmitted light)

OZL-44-BA-e-1510 8

4 Assembly

The first step is to position the microscope stand on a firm, level surface.

The holder is already on pillar of the stand, but you must always check whether it is

fixed securely and that it is in the correct position (preferably centrally and facing to

the front).

Please see section 5.5 for more details on adjusting the stand.

The next step is to place the microscope head on the holder, by passing the

objective through the holder ring until the rest of the head is above the ring.

You must use the small silver adjusting screw on the front of the holder ring to fix the

head in place.

The alignment of the microscope head is left to the user to do and can be adjusted to

suit the individual application situations.

To make it easier to operate the focus wheels or lighting control for example, we

recommend that you position the head with the tube connectors centrally to the front.

Ideally, the holder and head are then parallel on the central axis of the stand base

(see figure on page 9).

Both eyepieces are already fitted in the tube. You just need to remove the

protective film which covers them.

When doing this, please be particularly careful that you do not touch the optical

lenses with your fingers and that no dust enters the apertures.

In general you should avoid using two eyepieces with different magnifications.

When changing the eyepieces, you must also loosen the small silver screw under

the eyepiece on the tube connectors and once the new eyepiece is fitted, then it must

be re-tightened.

With regard to the use of transmitted light illumination you must make sure that

the frosted glass stand insert is fitted in the centre of the stand base, so that the

transmitted light can be used correctly.

It is always best to fix the different stand inserts using the adjusting screw on the

front side of the stand base.

Additional optional attachments:

The eye cups supplied with the microscopes can be fitted to the eyepieces.

(see section 5.6)

You can fit a C-mount adapter to the appropriate connection point on the top

of the microscope head for trinocular devices (OZM 543, OZM 544). This

enables you to fit and use digital cameras (see section 5.9).

9 OZL-44-BA-e-1510

Assembled stereo zoom microscope

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