Laarmann LMDG 200 User manual

USER'S MANUAL
LAARMANN LMDG 200
Edition Month Year
1. September 2013

MANUAL LMDG 200
2
TABLE OF CONTENTS
1. SAFETY INFORMATION........................................................................................3
1.1. WARNING SYMBOLS..........................................................................................3
1.2. SAFETY INSTRUCTIONS....................................................................................3
2. GENERAL DESCRIPTION......................................................................................5
3. TECHNICAL FEATURES........................................................................................6
3.1. CONSTRUCTION.................................................................................................6
3.2. TECHNICAL DATA...............................................................................................6
4. INSTALLATION ......................................................................................................7
4.1. UNPACKING........................................................................................................7
4.2. SELECTING THE RIGHT PLACE ........................................................................7
4.3. CONNECTING THE POWER CORD ...................................................................7
4.4. ENVIRONMENT CONDITIONS............................................................................7
4.5. TURN THE SAFETY SWITCH IN THE RIGHT DIRECTECTION.........................8
5. INSTRUCTIONS FOR USE.....................................................................................9
5.1. OVERALL VIEW...................................................................................................9
5.2. DESCRIPTION STOP / START FUNCTION......................................................10
6. WORKING INSTRUCTIONS.................................................................................14
6.1. GENERAL ..........................................................................................................14
6.2. STARTING THE MILLING PROCESS................................................................14
6.3. STOPPING THE MILLING PROCESS...............................................................14
7. TROUBLESHOOTING..........................................................................................15
8. MAINTENANCE....................................................................................................15
8.1. WEAR.................................................................................................................15
8.2. CLEANING.........................................................................................................15
9. EXPLODED VIEWS AND PART LISTS................................................................16
10. CE CERTIFICATE...............................................................................................22

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1. SAFETY INFORMATION
Before using the machine, make sure to read and understand this manual
thoroughly. Keep the manual close to the machine, easily accessible to all the users.
Improper operation can cause injury to persons or damage to the equipment.
1.1. WARNING SYMBOLS
The following are the warning symbols that are used in this manual.
This symbol indicates a potential risk and alerts you to proceed with
caution.
This symbol indicates the presence of high voltage and warns the user
to proceed with caution.
This symbol indicates risks associated with hot surfaces.
1.2. SAFETY INSTRUCTIONS
Safety instructions
Claims for damages in any form whatsoever, for injury to persons or
damage to the machine, caused through non-observance of the
following safety instructions, are excluded.
Use according to the intended purpose
Do not make any alterations to the machine and use only approved
spare parts and accessories. Otherwise the Declaration of Conformity
will lose its validity and this will also lead to the loss of any guarantee
claims.
Transport
Do not knock, shake or throw the LMDG 200 during transport. Otherwise
the electronic and mechanical components may be damaged.
Packing material
Please keep the packing material for the duration of the guarantee
period. In case of a complaint and return of the machine in unsuitable
packing material, your guarantee claim will be lost.
Temperature variations
If the LMDG 200 is subjected to high temperature variations, protect it
against condensed water. Otherwise the electronic components may be
damaged.
Ambient temperature
If the temperature drops below +5°C or exceeds +40°C, electronic and
mechanical components can be damaged. Performance can be
changed to an unknown extent.

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Atmospheric humidity
If the humidity exceeds 85%, electronic and mechanical components
can be damaged. Performance can be changed to an unknown extent.
Electrical connection
If the values for the mains power supply on the name plate are not
observed, the electrical and mechanical components may be damaged.
Inserting grinding discs
Ensure that the grinding discs are inserted correctly in the machine.
Otherwise they can be damaged, when starting the machine
Removing hot grinding disc
When removing hot grinding discs, always wear protective gloves. There
is a danger of burning the hands
Materials
Observe the relevant regulations and directives for handling chemicals
and hazardous materials.
Milling of materials, which give a risk of fire or explosion, is prohibited.
Cleaning
Do not clean the LMDG 200 under running water. Danger to life through
electric shock.
Use only a soft cloth moistened with water. Cleaning agents and
solvents should not be used, not for cleaning the milling tools either.
Repair
For your own safety, repairs must be carried out only by authorized
service technicians.

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2. GENERAL DESCRIPTION
The LMDG 200 is a laboratory machine, which is suitable for pulverizing and
homogenizing hard and brittle materials in the dry and wet state.
It is used for fast pulverizing.
The closed milling pulverizing system guarantees complete recovery of the samples.
Final finenesses of down to 75 μm can be achieved, depending on the milling time
and the specific properties of the sample material. The optimum filling of a LMDG
200 is around 1-1.3 Liters of sample material.
The sample quantity should not be less than 50 grams.
The static and the moving disc must always be made of identical
material.
3. TECHNICAL FEATURES
3.1. CONSTRUCTION
The housing of LMDG 200 is made of steel plate with powder coated RAL5005 paint.
Protective equipment
The milling chamber of the LMDG 200 is safely closed by an electrical safety switch.
Starting of the machine is possible only when:
- power is connected;
- the emergency switch is not activated;

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3.2. TECHNICAL DATA
Power supply
400V ± 10% - 50Hz
Rated power
4000W
ON/Off
By ON/Off Switch
Max. collector volume
3000 ml
Gap adjustment
By flexible setting
Throughput
Up to 150kg/h
Dimensions W x D x H
(inclusive base plate)
1000 x 1200 x 500
Weight
200 kg
Shaft speed
300rpm
Noise emission
(without milling bowl)
70 dB(A)
Ambient temperature
+5°C - +40°C
Atmospheric humidity
< 85% RH
4. INSTALLATION
4.1. UNPACKING
Before the installation, carefully examine the delivery for possible damage or missing
parts. Open the crate and take the machine out of the box. Check that the machine
has not been visibly damaged during the transport.
Please keep the packing material for the duration of the guarantee period. In case of
a complaint and return of the machine in unsuitable packing material, your guarantee
claim will be lost.
Check that the mains cord is compatible with the local standard.
If any kind of damage occurred during transport, immediately make a complaint to
the carrier. Any incorrect delivery or missing parts should be reported to the
distributor.
After opening and removing the wooden crate remove the 4 screws in each corner of
the metal base of the LMDG 200. Connect a belt at the hook of the motor and at the
hook of the housing to lift the machine from the pellet.

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.
4.2. SELECTING THE RIGHT PLACE
When selecting the right place for the machine, please consider the following:
- Put the device on smooth, horizontal and stable place.
- Leave enough space beyond the device for normal air circulation, min. 200 mm at
the back of the machine.
- Leave enough space around the device, that you will easy control and maintain it.
- Don’t use the device in surroundings, where there are fast temperature and
humidity changes. Also avoid places exposed to direct sunlight and places nearby
heating devices.
- Avoid places, where the possibility of shocks and vibrations exists.
Note: The machine should not be placed so, that it is difficult to pull out the
cord plug from mains power supply.
4.3. CONNECTING THE POWER CORD
The correct voltage and frequency for the LMDG 200 are given on the name plate.
Ensure that these values correspond to the available power supply system.
Connect the machine with the plug supplied to a grounded wall socket.
To avoid interference from noise, surges and spikes, a dedicated line is preferred. If
no such line is available, avoid lines to which powerful electric motors, refrigerators
and similar devices are connected.
The power can be turned on and off by the emergency switch, located on the front
cover at the right side of the machine. Light in the switch indicates, when the power is
on.
Emergency switch to turn on and off the LMDG 200

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4.4. ENVIRONMENT CONDITIONS
The machine has been built for operating in laboratory environment. Therefore the
environmental conditions should be the following:
- Temperature from +5C to +40C
- Humidity up to 85% RH, non-condensing
4.5. SAFETY SWITCH IN THE RIGHT DIRECTION
When the safety switch is in this Position the machine
can be started
Blue light
The machine can be stopped by pressing the red STOP button. With a delay time of
4 Seconds the blue light will appear and the grinding chamber can be opened.
By moving the lever from the left to the right the machine will be unlocked.

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Due to the safety switch the machine cannot be started while open.

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5. INSTRUCTIONS FOR USE
5.1. OVERALL VIEW