Leica Lino L2 User manual

Leica L2
User manual

Leica L2 User manual
Contents
Page
Safety concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adapters for stereomicroscopes and
for stand-alone operation . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting the light source and the power
supply unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Light guides and connectors . . . . . . . . . . . . . . . . . . . . . . . 16
Use
Starting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Changing the bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Accessories
Focusing lens and filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Near-vertical illuminator . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Coaxial illuminator, transmitted-light stage . . . . . . . . . . . 24
Notes
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Compliance with standards . . . . . . . . . . . . . . . . . . . . . . . . 29
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2

Leica L2 User manual 3
To you, the user
Thank you for purchasing the Leica L2 fibre-optic light
source. We wish you every success with this quality
product.
The Leica L2 fibre-optic light source provides excellent
illumination conditions for working with a stereomicro-
scope in laboratory and industrial settings. The antistatic
housing protects the equipment against the build-up of
electrostatic charges that can have serious effects
during the assembly and quality control of sensitive
electronic components such as circuit boards, integrated
circuits and reader heads.
The Leica L2 fibre-optic light source is a compact, power-
ful, competitively-priced unit which, when combined with
various light guides and accessories, is suitable for a
wide range of applications. By means of various adapters
it can be attached to any Leica stereomicroscope, or it
can be used as a free-standing lamp.
In developing this new fibre-optic light source we made
simple, self-explanatory directions a priority. We have,
however, put a lot of effort into explaining all functions to
you by means of a combination of pictures and text. You
will only get the best out of your fibre-optic light source if
you take the trouble to study this user manual in detail,
paying particular attention to the notes regarding the
safety of electrical appliances.
If you have any questions at any time, just contact your
local Leica agency or get in touch directly with Leica
Microsystems (Switzerland) Ltd, CH-9435 Heerbrugg. We
will be glad to help you. Customer service is a big thing
with us. Not only before the sale, but afterwards as well.

Before you try to use the Leica L2 fibre-optic light source
and its fibre-optic light guide, please read:
• this user manual and the safety notes
• the user manual for your stereomicroscope or
macroscope, including the directions for care and
safety.
If safety instructions are not observed, the safety of the
equipment cannot be guaranteed. The manufacturer
cannot be held responsible for damage or injury caused
by failure to comply with the contents of this user
manual.
The Leica L2 fibre-optic light source with its fibre-optic
light guides is the preferred illuminator for the Leica S4 E,
S6 E, S6, S6 T, S6 D and S8 APO. It can also be adapted to
the Leica MS5, MZ6, MZ75, MZ95, MZ125and MZ APO
stereomicroscopes and to the Leica M420; alternatively it
can be used as a free-standing light source.
The Leica L2 is designed for laboratory and industrial
applications, and serves to provide powerful illumination
for all types of object so that they can be observed under
the stereomicroscope. With this in mind, the infrared
range is filtered out and the visible component of the
radiation is transmitted to the object through flexible
fibre-optic light guides. The housing of the Leica L2 is
made of antistatic material, providing maximum
protection against electrostatic discharge. The Leica
L2 is silent and free of vibrations; a 20W bulb is used,
so there is no need for a fan.
Important
notes
Permitted
uses
4Leica L2 User manual
Safety concept

The use of the Leica L2 in a manner other than that
described in this user manual may result in injury,
malfunction and damage.
– Do not try to carry out technical modifications.
– Do not fit different plugs or cables.
– Do not allow unauthorized persons to open or
dismantle the Leica L2 or any of its components.
– Do not dismantle or modify parts unless instructions
for doing so are given in the user manual.
The Leica L2 fibre-optic light source is intended for use in
closed dry rooms and may not be used outdoors.
• This instrument is not suitable for use in environ-
ments where there is a risk of explosions.
The Leica L2 fibre-optic light source requires no mainte-
nance. In case of repair, please note that:
– Repairs may be carried out only by the manufacturer
or by the manufacturer’s appointed customer service
centres.
– Only original spare parts may be used.
– Before opening the Leica L2 fibre-optic light source
or its power supply unit, disconnect the power supply
cable. If you touch the live interior of the equipment,
you may receive an electric shock.
Prohibited
uses
Place of use
Repairs,
servicing
5
Leica L2 User manual – Safety concept

– Ensure that the Leica L2 fibre-optic light source is
operated, maintained and repaired only by authorized
and trained personnel.
– Ensure that personnel who use the instrument have
read and understood this manual and the manuals for
the stereomicroscope/macroscope and in particular
all safety instruments, and that they implement this
information.
– Ensure that such personnel always have quick
access to this user manual.
Adhere to general and local accident prevention and
environmental protection regulations.
The Leica L2 fibre-optic light source utilizes state-
of-the-art technologies and has a statement of
conformity with EC requirements.
For conformity with other standards, please refer to
page 29.
Responsibilities
of person in charge
of instrument
Legal
requirements
Conformity
with standards
6Leica L2 User manual – Safety concept

Be careful when handling liquids. If spilt on the equipment,
they can:
– cause the light source to become electrically live,
endangering personnel
– cause damage to the equipment.
– The Leica L2 fibre-optic light source is to be operated
only in conjunction with the original power supply unit.
– The power supply unit is to be operated only at the
stipulated mains voltages of 100 to 240V (50/60Hz).
– Always connect the power supply unit to the lamp
before you connect it to the mains supply (see page 16).
– To ensure that the equipment is completely discon-
nected from the mains, unplug the power supply unit.
Inspect cables regularly for damage. Defective cables
can:
– directly endanger personnel
– cause the instrument and other equipment to become
electrically live, endangering personnel.
Position cables with care. Make sure that personnel
do not get entangled with them. The instrument could
fall over, fall down, become damaged, damage other
equipment, or cause personal injury.
Liquids
Power supply unit
Power cables
Positioning cables
7
Leica L2 User manual
Safety precautions during use

The Leica L2 fibre-optic light source:
– must always be locked into an adapter when it is in
use (see page 14). This ensures its stability.
– must only be used in a vertical position with the light-
guide connector at the top (see page 14).
– must be set up so that all ventilation holes are free
(see page 14).
– Unplug the power cable from the mains socket.
– Never touch the inside of the lamp housing when
the power supply is connected.
– Wait for the halogen bulb to cool before you try to
change it. If you touch a hot bulb, you may suffer
burns. There is a warning symbol inside the door
of the lamp compartment as a reminder (see page 21).
Setting up the
Leica L2 fibre-optic
light source
Changing the bulb
8Leica L2 User manual – Safety precautions during use

– Never place anything over the open connection to the
light guide. The material covering the connection
could be damaged by heat.
– Never use any part of your body to cover the open
connection to the light guide; you could suffer burns.
– Make sure that the connections to the light guides
are at least several centimetres away from any
materials or objects which are sensitive to heat. The
amount of heat radiation emitted from the light-guide
outlet of a fibre-optic light source is negligible, but it
is possible for objects to convert the intense visible
radiation into heat and to become damaged.
Minimize the time during which the object is illumi-
nated, and also the light intensity.
– When detaching the light guide, avoid touching the
hot inlet of the light guide. Switch off the light source
and wait until the light guide has cooled down.
Immediately above the light guide inlet is shrink-on
tubing that enables the hot light guide to be touched
without danger.
– Do not look directly into the open connector of the
light guide; you could be temporarily dazzled. First
switch off the bulb before you pull out the light guide.
While the lamp is
switched on:
9
Leica L2 User manual – Safety precautions during use

Symbols used
Warning: Electrical current
This symbol denotes information that must be read and
obeyed.
Disregarding these instructions can cause injury.
Safety instruction
This symbol denotes information that must be read and
obeyed.
Disregarding these instructions can cause a malfunction
in, or damage to, the instrument.
Hot surface warning.
Disregarding this information
can result in burns.
Important information
This symbol denotes additional information or explana-
tions that have been provided for understanding.
Action
This symbol indicates that certain operations must
be carried out.
Explanatory notes
• This symbol indicates additional information and
explanations.
10 Leica L2 User manual – Safety precautions during use

Leica L2 User manual 11
Overview
Overview of equipment
1 Power supply unit with connecting cable
and power plug
2 Connection socket for power supply unit
3 On/Off switch with brightness control
4 Connector for light guide
5 Lamp compartment with socket for
8V/20W halogen reflector bulb
6 Handle for opening the lamp compartment
7 Adapter mounting rail
8 Ventilation holes
9 Ventilation holes
10 Ventilation hole (on base of unit)
11 Type plate (on base of unit)
9
8
5
6
4
1
37 2

Installation
Overview
1 Leica L2 fibre-optic light source
2 Adapter for focus column
3 Adapter for swinging-arm stand and for cylindrical
columns
4 Baseplate for stand-alone operation
5 Adapter for 300mm focus drive
6 Flexible fibre-optic light guide with one or two arms
7 Flexible light guide mount
8 Universal light guide, one or two arms
9 Universal light guide mount
10 Gooseneck light guide with one or two arms
11 6-point ring light
12 Near-vertical illuminator
13 Coaxial illuminator
14 Transmitted-light stage
15 Focusing lens
16 Filter for focusing lens
12 Leica L2 User manual

13
Leica L2 User manual – Installation
10 446 392 10 446 386 10 446 387 10 446 388 10 446 389 10 446 390
10 446 385 10 447 015
10 446 37510 446 374 10 446 377 10 446 376
10 446 391
10 446 373
10 446 372
10 447 038
10 447 055
10 445 73710 446 37810 447 009
10 280 636
10 445 661
10 445 662
10 445 663
Leica L2
S4 E / S6 E / S6
S6 D / S6 T / S8 APO
S4 E / S6 E / S6
S6 D / S6 T / S8 APO
MS5 / MZ6
10 447 056
StereoZoom®M-Stereomicroscopes
StereoZoom®M-Stereomicroscopes StereoZoom®
10 447 152
1615
14 13
12
97
5432
1
610811

Adapters for stereomicroscopes and for stand-alone
operation.
Four adapters are available for connecting the Leica L2
fibre-optic light source to various stereomicroscope
stands and for stand-alone operation.
When in use, the Leica L2 fibre-optic light source must
always be locked into an adapter to ensure stability
(page 8).
To remove the light source from the
adapter, press the two spring flaps
at the back of the light-source
housing together and pull the light
source out of the bracket. Handling
the spring flaps improperly can
cause them to break off.
Using the short fork, clamp the
adapter to the focus column.
Using the mounting rail, slide
the fibre-optic light source
into the long adapter fork until
it engages.
To remove the adapter from the
focusing column, first remove the
light source as described above.
Then press the two fork ends of the
adapter apart a little, until it is easy
to pull out.
Adapter for
StereoZoom
focus column
14 Leica L2 User manual
Installation

Using the mounting rail, slide
the fibre-optic light source
into the adapter fork until it
engages.
Secure the adapter to the
vertical column by tightening
the screw.
Secure the clamp to
the 300mm focusing drive by
tightening the screw.
Using the mounting rail, slide
the fibre-optic light source
into the adapter fork until it
engages.
When mounted on the baseplate,
the light source can be used as a
stand-alone unit.
Using the mounting rail, slide
the fibre-optic light source
into the adapter fork until it
engages.
Adapter ➔
for swinging-arm
stands and
cylindrical columns
Adapter ➔
for 300mm
focusing drive
M-stereo-
microscopes
Adapter ➔
baseplate
15
Leica L2 User manual – Installation

Use only the original power supply unit with the specified
mains voltages of 100 to 240V (50/60Hz).
Make sure that the light
source is switched off
(see page 20).
First connect the power
supply unit to the input
socket of the light source.
Connect the mains lead to
the power supply unit and
connect the power supply
unit to the mains.
Depending on the application required, various types of
light guide and arms are available for fitting to the stereo-
microscope (see below). Perfect functioning, safety,
maximum use of the light available, and uniform illumina-
tion, are assured only if the original light guides are used.
If the light guide has a guide pin, make sure that it
connects with one of the corresponding slits.
Push the light guide into the
holder so that it engages.
Power supply unit ➔
light source
Light guide ➔
light source
16 Leica L2 User manual – Installation

Gooseneck light guides that
require no support can now
be positioned relative to the
object.
Other types of light guide are
attached to the stereo-
microscope as described
below.
Please note that the universal
light guide on the Leica S8 APO
can only be used with the side-
ways-mounted lamp arms.
On the Leica S4 E, S6 E, S6, S6 T
and S6 D the one-arm universal
light guide can be inserted di-
rectly in the microscope bracket:
Insert the outlet of the light
guide into the port on
the microscope carrier.
One and two arm
Universal light guide
17
Leica L2 User manual – Installation
Light guide ➔stereomicroscope

One or two arms for the
universal light guide mount
into the thread to the left
or right of the microscope
carrier .
Fit the outlet of the light
guide into the holder.
Screw one or two arms for
flexible light guides into the
thread to the left or right of
the microscope carrier or
into the one beneath it.
Fit the outlet of the light
guide into the holder.
If required, use the clamping
screw to secure the focusing
lens to the outlet of the light
guide (see page 22).
Universal light guide
assembly with
lamp arms
One- and two-
branched flexible
light guides
18 Leica L2 User manual – Installation

Use the clamping screw to
secure the 6-point ring
light to the objective of the
stereomicroscope.
If necessary, thread the pipe
through the port on the
microscope carrier.
6-point ring light
19
Leica L2 User manual – Installation

Before you try to use the light source, please read the
safety notes on page 7.
The power supply unit for the Leica L2 fibre-optic light
source is voltage-sensitive, i.e. it automatically sets
itself to the voltage available (100 to 240V) and ensures
a constant illumination level, independent of voltage
fluctuations.
The light source is switched
on and off with the brightness-
adjustment control.
Position 0: The instrument is
switched off.
To ensure that the equipment is completely disconnected
from the power supply, detach the plug of the power
supply unit.
The instrument is operating at below nominal voltage,
greatly extending the life of the halogen bulb:
– Lamp service life at level I approx. 5000 hours.
– Lamp service life at level II approx. 1000 hours.
Maximum light output.
The instrument is operating at nominal voltage.
The colour temperature is about 3200 K, and the average
bulb life about 250 hours.
Starting up
Switching on
and off, adjusting
the brightness
Positions I and II:
Position III:
20 Leica L2 User manual
Use