KERN-SOHN KS OIV 255 Instructions

OIV-2-BA-e-2010

KERN & Sohn GmbH

Ziegelei 1
D-72336 Balingen
E-mail: [e-mail]

Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com

User instructions
Video microscope

KERN OIV-2

OIV 254, OIV 255

Version 1.0
11/2020

OIV-2-BA-e-2010 2

GB

KERN OIV-2

Version 1.0 11/2020

Operating instructions
Video 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 Basic data ..................................................................................... 7

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

5 Operation and functionality ......................................................... 9

5.1 Torque of the focus wheels ..................................................................................................... 9

5.2 Attaching the lighting ............................................................................................................... 9

5.3 Adjusting the lighting ............................................................................................................... 9

5.4 Adjusting the magnification and focus .................................................................................. 9

5.5 Locked magnification............................................................................................................. 10

5.6 Snapshot button and interface ............................................................................................. 10

6 Equipment .................................................................................. 11

7 Troubleshooting ......................................................................... 11

8 Service ........................................................................................ 12

9 Disposal ...................................................................................... 12

10 Further information .................................................................... 12

3 OIV-2-BA-e-2010

1 Before use

1.1 General notes

The packaging must be opened carefully to prevent any accessories inside from falling
to the floor and breaking.

In general, a microscope should always be handled with great care, as it is a sensitive
precision instrument. Avoiding abrupt movements during operation or transport is
therefore particularly important, especially to avoid endangering the optical
components.

Similarly, you should avoid dirt or fingerprints on the lens surfaces, because in most
cases this reduces image clarity.

If the performance of the microscope is to be maintained, it must never be
disassembled. Components such as objective lenses and other optical components
should therefore be left as they are found at the beginning of operation.

1.2 Notes on the electrical system

Before connecting to a power supply network, it is important to ensure that the correct
input voltage is used. The information to select the correct mains cable is located on
the device, on the side of the product directly next to 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.

Likewise, the main switch should be turned off before connecting the mains cable. This
prevents an electric shock from being triggered.

If you use an extension cable, the mains cable used must be grounded.
All handling of the units that involves contact with the electrics, such as changing

lamps, may only be carried out when the power supply is disconnected.

OIV-2-BA-e-2010 4

1.3 Storage

Avoid exposing the unit to direct sunlight, high or low temperatures, shocks, dust and
high humidity.

The suitable temperature range is 0 - 40° C and a relative humidity of 85 % should not
be exceeded.

The unit should always be on a firm, smooth and horizontal surface.
When the microscope is not being used, you should cover it with the enclosed dust

protective cover.
Dust or dirt inside the optics of a microscope can in many cases cause irreversible
malfunctions or damage.

The best way to store accessories which consist of optical elements, such as, for
example, additional objectives, is in a dry box with desiccant.

5 OIV-2-BA-e-2010

1.4 Maintenance and cleaning

In any case, the unit must be kept clean and regularly cleaned of dust.
Before wiping down the unit when wet, make sure that the power is switched off.

Glass components should preferably be wiped lightly with a lint-free cloth if
contaminated.

To wipe off oil stains or fingerprints from lens surfaces, the lint-free cloth is moistened
with a mixture of ether and alcohol (mixing ratio 70 / 30) and then used for cleaning.

Ether and alcohol must always be handled with care as they are highly flammable
substances. It is therefore essential to keep them away from naked flames and
electrical appliances that are switched on and off, and to use them only in well­ventilated rooms.

However, organic solutions of this type should not be used to clean other components
of the unit. This could result in changes to the paintwork. It is sufficient to use a neutral
cleaning agent for this purpose.

Other cleaning agents for the optical components include:

 Special cleaner for optical lenses
 Special optical cleaning cloths
 Bellows
 Brush

If handled correctly and checked regularly, the microscope will function smoothly for
many years.

Should a repair still be necessary, contact your KERN dealer or our Technical Service.

OIV-2-BA-e-2010 6

2 Nomenclature

Screen

Housing for microscope
and camera

LED ring illumination

Microscope stand

Focus wheel

Zoom adjustment
wheel

USB connection (2)

HDMI connection

Snapshot button
(OIV 254)

Power connection

Dimmer

7 OIV-2-BA-e-2010

3 Basic data

Optical system

Axial

Lighting

2W LED ring light

Lighting dimmable

Yes

Stand

Mechanical

Optical zoom

0.7x - 5x

Digital zoom

9.88x - 70.57x

Magnification ratio

7,1:1

Screen tilt

-5°–15°

Screen size

12 inch

Screen resolution

1920x1080 HD

Camera resolution

2 MP

Data storage

External via USB (Max 128 GB)

Net weight

6 kg

Dimension product WxDxH

320x260x483 mm

Gross weight

7 kg

Dimension packing WxDxH

510x430x350 mm

Standard configuration

OIV-2-BA-e-2010 8

4 Assembly

Assembling the microscope body

1) Slide the dovetail attachment on the microscope ① into the
corresponding groove ② on the microscope stand.

2) Tighten the screws on the outside of the microscope with an
M4 hexagonal spanner ③ .

Attaching the LED ring light

Hold the LED ring light against the microscope housing
according to the direction of the arrow. Align the screw holes in
ring and housing ① and tighten the screws (Ø 2mm) ② .

Power connection

Plug the power cable ① (incl. switch) into the fitting plug ② on
the microscope.

Be careful not to twist or bend the power cable.
Only use the original adapter supplied.

Screen flexibility adjustment

Remove the cover ① with a pointed tool.
Loosen the screw ② with the M3 Allen key.
Adjust the flexibility using a screwdriver on the screws ③ + ④ .
Replace the cover ① .

The flexibility is already preset on delivery.