Leica MST31 Bedienungsanleitung

Leica

Motor-Focus

System

User manual

Manuel d’utilisation

Gebrauchsanweisung

Manual de empleo

Contents

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Safety concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Assembly

The components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Use

Switching on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Acoustic signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Stops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Footswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Handswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

The focusing position: Storing, travelling, cancelling . . . . . . . . . . . . . . . . . . . . . . . . . 10

Focusing with the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Description

Purpose

The purpose of the motor-focus system is to provide motor-

driven coarse and fine focusing by means of a manual control,

a footswitch, or through a computer. Five exact focus settings

can be stored so that the instrument can travel to them directly.

The motor-focus system offers the following advantages over

manual focusing:

• Easy to use, even with heavy outfits

• Ergonomically better

• More flexibility for the user

• Leaves the hands free

• Saves time during repetitive tasks.

For Leica stereomicroscopes

The modular design of the motor-focus system enables it to be

fitted to the incident- and transmitted-light stands and large

swinging-arm stand of the LEICA MS5, MZ6, MZ8, MZ12, MZAPO

and MZ FLIII stereomicroscopes and of the LEICA M420

macroscope.

User manual

The present user manual describes the design and use of

the motor-focus system. There is a separate user manual for

the stereomicroscope or macroscope.

For safety directions, and for detailed information about the

stereomicroscope or macroscope and how to clean it,

and about its stands, illuminators and accessories, please

refer to the user manual for that instrument.

Safety concept

Before you try to set up and use the motor-focus system, read:

• this user manual, and in particular the safety notes

• the user manual for your stereomicroscope or macroscope,

including the notes about safety and care.

Permitted uses

The motor-focus system is intended for the motor-driven raising

and lowering of the LEICA MS5, MZ6, MZ8, MZ12, MZAPO and

MZ FLIII stereomicroscopes and of the LEICA M420 macroscope

on Leica incident- and transmitted-light stands, and on the large

swinging-arm stand, and it replaces the mechanical drive

housing. The motor-focus system consists of

• a column with motor-focus mechanism

• a transformer with a power cable

• a manual control and/or a footswitch and/or a PC

interface kit.

Prohibited uses

The use of the motor-focus system in a different manner

from that described in this user manual can lead to injury,

malfunction and damage.

• Do not fit different plugs.

• Do not attempt to modify the motor-focus system.

• Do not dismantle any part of the motor-focus system unless

instructions for doing so are given in the user manual.

• Do not allow the motor-focus system to be opened

by unauthorized personnel.

Place of use

The motor-focus system is intended for use only in closed rooms.

Responsibilities of person in charge of instrument

• Ensure that the motor-focus system is operated, maintained

and repaired only by authorized and trained personnel.

• Ensure that personnel who use the motor-focus

system have read and understood this user manual

and in particular all safety instructions.

Safety regulations

Repairs and servicing

• Only Leica-trained service technicians, or technical

specialists assigned by the person in charge

of the instrument, are permitted to carry out repairs.

• Only original Leica spare parts may be used.

• Disconnect the power cable before opening the

transformer, otherwise there is a risk of injury through

electric shock.

Precautions by the manufacturer

• The motor-focus system is electromagnetically

compatible in accordance with the directive 89/336/EEC

and can be operated at the same time as other

electrical appliances.

• Low-voltage protection prevents electric shock if the

circuit inside the motor housing is touched.

• Stops on the column, and end-switches on the motor

housing, limit the upward and downward movement of the

motor-focus system. The end-switches prevent it from

attempting to travel further when it encounters the stops.

Warning: Danger of crushing and other injuries

When focusing, keep your fingers away from:

• the space between the motor housing and the lower stop

• the space between the objective and the object, the

surface of the stand, the stage insert and the stage.

Precautions by the manufacturer: The lower stop must be

adjusted individually in accordance with the characteristics

of the object (see below).

Safety note

Always set the lower stop correctly in relation to the object

(see page 9). If it is set too low:

• the user’s hands might get crushed between the objective

and the object

• the object might get flattened or otherwise damaged

• the objective might get damaged.

Power cable

• Inspect the power cable regularly for damage. If it is

defective, replace it immediately, because it can cause

the instrument and ancillary equipment to become

electrically live, endangering personnel. Do not pull at

the power cable.

• Position the power cable carefully and make sure that

no-one can become entangled in it or fall over it.

Cleaning

• Disconnect the power cable before you attempt to clean the

motor-focus system.

• Respect the warning signs relating to the handling of liquids.

• Read and follow the notes about cleaning which are given in

the user manual for the instrument.

Liquids

Be careful when handling liquids. If spilt on electrical

appliances, they can:

• cause the instruments and accessories to become

electrically live, endangering personnel

• cause damage to the equipment.

Legal requirements

Adhere to general and local regulations relating to accident

prevention and environmental protection.

Conformity with European Community directive

The motor-focus system and its accessories are constructed in

accordance with the latest technologies and are provided with

a statement of conformity with EC requirements.

Overview

Components

Motor-focus system on incident- or transmitted-light stand

1 Stereomicroscope

2 Stand with column and motor-focus system

3 Transformer

4 Handswitch

5 Footswitch

6 Standard PC (not illustrated)

Motor-focus system on large swinging-arm stand

7 Inclinable carrier rod with motor focus

Assembly

The components

1a 300mm-long column with motor-focus mechanism

1b Inclinable carrier rod with motor focus

2a Incident- or transmitted-light stand

2b Large swinging-arm stand

3 Lower stop

4 Microscope carrier

5 Optics carrier

6 Transformer (not illustrated)

7 Handswitch

8 Footswitch

9 PC interface kit (not illustrated)

Assembly

Incident- or transmitted-light stand

Column with motor-focus mechanism ➜base of stand

왘Using three Allen screws, secure the column to the

incident- or transmitted-light base (refer to user manual

for stereomicroscope or macroscope).

왘Using the clamping screw, secure the lower stop to the

column, taking the position of the object into account

(see page 9).

Large swinging-arm stand

왘Fit the inclinable carrier rod to the horizontal arm in

accordance with the user manual for the stereomicroscope

or macroscope.

왘Using the clamping screw, secure the lower stop to the

carrier rod (see page 9).

Microscope carrier ➜ column with motor-focus mechanism

왘Using an Allen screw, secure the microscope

carrier to the column of the stand (refer to user manual for

stereomicroscope or macroscope).

왘Fit the optics carrier, binocular tube and accessories

to the stereomicroscope or macroscope in accordance

with the user manual.

Transformer

Respect the directions for safety on pages 4 and 5.

Technical data

Type MST31

Input voltage 85 to 264 VAC

Input frequency 47 to 440 Hz

Input current max. 0.80 A at 115 VAC

max. 0.50 A at 230 VAC

Operating voltage 30V

Operating temperature +10°C to +40°C

Storage temperature –20°C to +55°C

Maximum mechanical loading 12 kg

1 Connector for transformer

2 Connector for footswitch or for PC interface kit

3 Connector for manual control

왘Connect the transformer to the motor-focus mechanism.

왘Connect the power cable to the electricity supply.

왘Connect the manual control and/or footswitch.

왘If appropriate, connect the PC interface kit instead

of the footswitch.

Connecting the motor focus

Use

Focusing

Switching on and off

왘Switch on the motor-focus system (switch 4).

• Confirmation by acoustic signal.

Acoustic signal

There is an acoustic signal when:

• the system is switched on (one short beep)

• there is a changeover between coarse and fine focusing (one

short beep)

• the focus position is stored (two short beeps)

• the focus position is cancelled (two short beeps, pause,

two long beeps)

• the stop is reached (series of beeps)

To switch off the acoustic signal

왘When switching on the system, press switch 11 or 12 on the

manual control (see page 10), or activate the footswitch.

Safety measures for the stops

Read the warnings on page 5.

• The fixed stop (5) on the upper part of the column, and

the adjustable stop (6) beneath the motor housing, limit the

movement of the motor-focus system.

• In addition, there is an end-switch (7) on top of the motor

housing and another one beneath it. If, during focusing,

an end-switch touches the stop, there is a series of beeps

and the movement ceases.

Set the lower stop

• so that your hands have enough room between

the objective and the object, even when the motor-focus

system has reached the stop

• so that during focusing the objective cannot press against

the object and damage either objective or object.

왘Place the object beneath the objective.

왘Look into the eyepiece and carefully bring the object into

focus using the manual control (see page 10), the footswitch

or the PC (see page 10).

왘Use the clamping screw (8) to secure the lower stop beneath

the motor housing.

Footswitch

• To focus using the footswitch: Left-hand switch (15) = up;

right-hand switch (16) = down.

• To change between fast- and fine focusing: Press left-hand

and right-hand switches at the same time.

• Focus positions cannot be stored by means of the

footswitch.

Handswitch

10 Rotary knob for focusing

11 Red switch for alternating between coarse and

fine focusing

12 Black switch for storing or cancelling up to five focus

positions and for travelling to the stored positions

Focusing with manual control

Respect the safety notes on pages 4 and 5.

• Focus with the red rotary knob (10): Anticlockwise = down;

clockwise = up.

• Change between coarse (rapid) focusing and fine focusing by

briefly pressing the red switch (11).

• When the system is first switched on, the rapid focusing

mode is active.

Storing the focus position

• Focus positions can be stored only by means of the

manual control or the PC.

• A maximum of five focus positions can be stored.

• If a sixth focus position is stored, the one nearest to it will be

cancelled.

• Each focus position can be cancelled individually.

• The system will travel to each of the individual focus

positions in the sequence in which they were stored.

• Switching off the system cancels all of the stored

focus positions.

왘Place the object beneath the objective.

왘Set the lower stop (see page 9).

왘Focus on the first point in the object.

왘Press the black switch (12) for at least 1.5 seconds.

The storage is confirmed by two short beeps.

왘Focus on the second point in the object and store

in the same way.

왘Focus and store up to five points in the object.

Travel to the stored focus positions

왘Briefly press the black switch (12).

To cancel the focus positions

왘Keep the black switch (12) pressed until you hear two short

beeps, a pause, and two long beeps.

Focusing with the PC

• In addition to a standard PC with RS232 interface,

you need a PC interface kit from Leica.

• The individual functions and commands are described

in a separate user manual for the PC interface kit.

11 12

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