KERN OZG 497 Bedienungsanleitung

OZG_497-BA-e-1510

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

Jewellery microscope

(stereo zoom)

KERN OZG 497

Version 1.0

01/2015

OZG_497-BA-e-1510 2

KERN OZG 497

Version 1.0 01/2015

User instructions

Jewellery microscope (stereo zoom)

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.....................................................................................8

4Assembly......................................................................................9

5Operation and functionality.......................................................11

5.1 Getting started........................................................................................................................ 11

5.2 Adjust the interpupillary distance ........................................................................................ 11

5.3 Adjusting the magnification.................................................................................................. 11

5.4 Dioptre adjustment and focussing ....................................................................................... 12

5.5 Adjusting the stand................................................................................................................ 13

5.6 Using eye cups / High Eye Point eyepieces ........................................................................ 14

5.7 Lighting control ...................................................................................................................... 15

5.8 Fitting and adjusting a camera ............................................................................................. 16

5.9 Changing the bulb.................................................................................................................. 17

5.10 Changing the fuse .................................................................................................................. 17

6Optical data ................................................................................18

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

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

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

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

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

3 OZG_497-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 main switch must also be switched off before the mains cable is connected. In

this way you will avoid triggering an electric shock.

If the original fuse should blow, it must only be replaced by an appropriate fuse.

Suitable replacement fuses are included with the delivery.

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.

Under no circumstances should you touch the integrated halogen bulbs or housings

either during operation or directly after use. These bulbs produce significant heat and

therefore there is a risk that the user could be severely burnt. So before handling the

bulbs, you must check that they have cooled down.

OZG_497-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 OZG_497-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.

OZG_497-BA-e-1510 6

2 Nomenclature

7 OZG_497-BA-e-1510

Rear view

OZG_497-BA-e-1510 8

3 Basic data

Optical system

Greenough

Magnification ratio

6.7:1

Dimmable lighting

Yes

Tube

angled at 45°

Interpupillary distance

55 –75 mm

Dioptre adjustment

On both sides

Packaging dimensions WxDxH

600x480x400 mm

Product dimensions WxDxH

340x235x580 mm

Gross weight

14,7 kg

Net weight

11,5 kg

Standard configuration

Model

KERN

Tube

Eyepiece

Field of

view

Objective

Zoom

Stand

Illumination

OZG 497

Trinocular

HWF 10x Ø 23 mm

Ø 33 –5.1

0.75x –5.0x

Arm

curved

12V / 10W Halogen (transmitted+incident light)

10W Fluorescent lighting (front light)

9 OZG_497-BA-e-1510

4 Assembly

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

The holder is firmly attached to the pillar of the stand. You can then fit the

microscope head to the holder, by passing the objective through the holder ring until

the rest of the head is above the ring.

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

The head must then be fixed in a suitable position, using the small screw on the front

of the holder ring.

Ideally it is then parallel on the central axis of the stand base (see figure on page 10).

Then you can remove the protective caps from the tube connectors so that you can

then fit the eyepieces. 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.

You should also never fit two eyepieces with different magnifications.

The front light is fitted to the front of the stand base using the hinged arm

delivered with the microscope. To do this there is a screw connection both on the

stand as well as the bulb housing of the front light. After that you should bring the

front light into the correct position.

Now the goose neck can be fitted. This is a bendable optical fibre, which has on

the one end section a longer metal rod and on the other end section a shorter rod.

The end section with the longer rod is used for the connection to the housing.

The appropriate connection point is on the left-hand side of the microscope below the

working stage. Before you can attach the goose neck here you have to slide the

cover plate upward and loosen the fixing screw so that it does not block the aperture.

Then the end section with the longer rod has to be pushed into the aperture up

to the stop and fixed by the screw. After that you can bring the goose neck into the

required position by bending.

The provided clamp has to be attached to the working stage instead of an already

mounted place holder. An enclosed metal pin is serving as bracket. You have to

attach this pin into a socket where there was one of the place holders before. The

clamp can easily be put on the pin by means of its counter piece.

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