Retsch GM 300 User Manual

Manual

Knife Mill GM 300

Translation

1 Notes on the Operating Manual ............................................................................................................ 5

1.1 Explanations of the safety warnings .................................................................................................. 6

1.2 General safety instructions ................................................................................................................ 7

1.3 Repairs ............................................................................................................................................... 8

2 Confirmation ........................................................................................................................................... 9

3 Transport, scope of delivery, installation .......................................................................................... 10

3.1 Packaging ........................................................................................................................................ 10

3.2 Transport.......................................................................................................................................... 10

3.3 Temperature fluctuations and condensed water ............................................................................. 10

3.4 Conditions for the place of installation ............................................................................................. 10

3.5 Removing the transport safeguard .................................................................................................. 11

3.6 Installation of the machine ............................................................................................................... 11

3.7 Electrical connection ........................................................................................................................ 11

3.8 Type plate description ...................................................................................................................... 11

4 Technical data ....................................................................................................................................... 13

4.1 Use of the machine for the intended purpose.................................................................................. 13

4.2 Protective equipment ....................................................................................................................... 13

4.3 Emissions......................................................................................................................................... 14

4.4 Degree of protection ........................................................................................................................ 14

4.5 Drive output...................................................................................................................................... 15

4.6 Rated power .................................................................................................................................... 15

4.7 Rated voltage ................................................................................................................................... 15

4.8 Rotation speed ................................................................................................................................. 15

4.9 Dimensions and weight .................................................................................................................... 15

4.9.1 Height with Hood Cover Closed................................................................................................... 15

4.9.2 Height with Hood Cover Open ..................................................................................................... 15

4.9.3 Weight .......................................................................................................................................... 15

4.10 Required floor space ........................................................................................................................ 15

5 Operating the machine ........................................................................................................................ 16

5.1 Views of the Instrument ................................................................................................................... 16

5.2 Operating elements and displays .................................................................................................... 17

5.3 Overview table of the parts of the device ........................................................................................ 19

5.4 Switching On and Off ....................................................................................................................... 20

5.5 Opening and closing of the grinding chamber ................................................................................. 20

5.6 Handling the Knife ........................................................................................................................... 20

5.7 Inserting the grinding jar .................................................................................................................. 22

5.7.1 Grinding container - use with different materials ......................................................................... 24

5.8 Grinding Jar Lid Sealing Rings ........................................................................................................ 24

5.9 Starting the grinding process ........................................................................................................... 25

5.10 Interrupting and continuing the grinding process ............................................................................ 25

5.11 Stopping the grinding process ......................................................................................................... 25

5.12 Menu structure ................................................................................................................................. 26

5.12.1 Setting Possibilities on the Display Menu ................................................................................ 26

5.13 Setting the grinding time .................................................................................................................. 28

5.14 Setting the Speed ............................................................................................................................ 28

5.15 Setting the Direction of Rotation ...................................................................................................... 29

5.16 Setting the interval ........................................................................................................................... 29

5.17 Emergency unlocking ...................................................................................................................... 29

6 Working instructions............................................................................................................................ 31

7 Fault messages ..................................................................................................................................... 31

8 Cleaning and service ........................................................................................................................... 32

9 Accessories .......................................................................................................................................... 34

10 Disposal ................................................................................................................................................. 35

11 Index ...................................................................................................................................................... 36

Appendix ............................................................................................................................... following pages

Notes on the Operating Manual

1 Notes on the Operating Manual

This operating manual is a technical guide on how to operate the device safely and it contains all the information required for the areas specified in the table of contents. This technical documentation is a reference and instruction manual. The individual chapters are complete in themselves.

Familiarity (of the respective target groups defined according to area) with the relevant chapters is a precondition for the safe and appropriate use of the device.

This operating manual does not contain any repair instructions. If faults arise or repairs are necessary, please contact your supplier or get in touch with Retsch GmbH directly.

Application technology information relating to samples to be processed is not

included but can be read on the Internet on the respective device’s page at

www.retsch.com.

Changes

Subject to technical changes.

Disclosure or reproduction of this documentation, use and disclosure of its contents are only permitted with the express permission of Retsch GmbH.

Infringements will result in damage compensation liability.

Notes on the Operating Manual

WARNING

Type of danger / personal injury

Source of danger

– Possible consequences if the dangers are not observed.

• Instructions on how the dangers are to be avoided.

WARNING

CAUTION

Type of danger / personal injury

Source of danger

– Possible consequences if the dangers are not observed.

• Instructions on how the dangers are to be avoided.

CAUTION

NOTICE

Nature of the property damage

Source of property damage

– Possible consequences if the instructions are not observed.

• Instructions on how the dangers are to be avoided.

1.1 Explanations of the safety warnings

In this Operating Manual we give you the following safety warnings

Serious injury may result from failing to heed these safety warnings. We give you the following warnings and corresponding content.

We also use the following signal word box in the text or in the instructions on action to be taken:

Moderate or mild injury may result from failing to heed these safety warnings. We give you the following warnings and corresponding content.

We also use the following signal word box in the text or in the instructions on action to be taken:

In the event of possible property damage we inform you with the word “Instructions” and the corresponding content.

We also use the following signal word in the text or in the instructions on action to be taken:

NOTICE

Notes on the Operating Manual

CAUTION

Read the Operating Manual

Non-observance of these operating instructions – The non-observance of these operating instructions can

result in personal injuries.

• Read the operating manual before using the device.

• We use the adjacent symbol to draw attention to the necessity of knowing the contents of this operating manual.

CAUTION

Changes to the machine

– Changes to the machine may lead to personal injury.

• Do not make any change to the machine and use spare parts and

accessories that have been approved by Retsch exclusively.

NOTICE

Changes to the machine

– The conformity declared by Retsch with the European Directives will lose

its validity.

– You lose all warranty claims.

• Do not make any change to the machine and use spare parts and

accessories that have been approved by Retsch exclusively.

1.2 General safety instructions

Target group : All persons concerned with the machine in any form

This machine is a modern, high performance product from Retsch GmbH and complies with the state of the art. Operational safety is given if the machine is handled for the intended purpose and attention is given to this technical documentation.

You, as the owner/managing operator of the machine, must ensure that the people entrusted with working on the machine:

• have noted and understood all the regulations regarding safety,

• are familiar before starting work with all the operating instructions and

specifications for the target group relevant for them,

• have easy access always to the technical documentation for this machine,

• and that new personnel before starting work on the machine are familiarised

with the safe handling of the machine and its use for its intended purpose, either by verbal instructions from a competent person and/or by means of

this technical documentation. Improper operation can result in personal injuries and material damage. You are responsible for your own safety and that of your employees. Make sure that no unauthorised person has access to the machine.

Notes on the Operating Manual

The Retsch representative in your country

Your supplier

Retsch GmbH directly

Reperaturen

1.3 Repairs

This operating manual does not contain any repair instructions. For your own safety, repairs may only be carried out by Retsch GmbH or an authorized representative or by Retsch service engineers.

In that case please inform:

Your Service Address:

Confirmation

I have read and taken note of the contents of all chapters in this operating manual as well as all safety instructions and warnings.

User

Surname, first name (block letters)

Position in the company

Signature

Service technician or operator

Surname, first name (block letters)

Position in the company

Place, date and signature

Bestätigung

2 Confirmation

This operating manual contains essential instructions for operating and maintaining the device which must be strictly observed. It is essential that they be read by the operator and by the qualified staff responsible for the device before the device is commissioned. This operating manual must be available and accessible at the place of use at all times.

The user of the device herewith confirms to the managing operator (owner) that (s)he has received sufficient instructions about the operation and maintenance of the system. The user has received the operating manual, has read and taken note of its contents and consequently has all the information required for safe operation and is sufficiently familiar with the device. As the owner/managing operator you should for your own protection have your employees confirm that they have received the instructions about the operation of the machine.

Transport, scope of delivery, installation

NOTICE

Storage of packaging

– In the event of a complaint or return, your warranty claims may be

endangered if the packaging is inadequate or the machine has not been secured correctly.

• Please keep the packaging for the duration of the warranty period.

NOTICE

Transport

– Mechanical or electronic components may be damaged.

• The machine may not be knocked, shaken or thrown during

transport.

NOTICE

Temperature fluctuations

The machine may be subject to strong temperature fluctuations during transport (e.g. aircraft transport)

– The resultant condensed water may damage electronic components.

• Protect the machine from condensed water.

NOTICE

Ambient temperature

– Electronic and mechanical components may be damaged and the

performance data alter to an unknown extent.

• Do not exceed or fall below the permitted temperature range of the

machine (5°C to 40°C / ambient temperature).

3 Transport, scope of delivery, installation

3.1 Packaging

3.2 Transport

The packaging has been adapted to the mode of transport. It complies with the generally applicable packaging guidelines.

3.3 Temperature fluctuations and condensed water

3.4 Conditions for the place of installation

Atmospheric humidity: Maximum relative humidity 80% at temperatures up to 31°C, decreasing linearly up

to 50% relative humidity at 40°C

Transport, scope of delivery, installation

NOTICE

Atmospheric humidity

– Electronic and mechanical components may be damaged and the

performance data alter to an unknown extent.

• Do not exceed the admissible range for atmospheric humidity.

NOTICE

Installation of the machine

– It must be possible to disconnet the machine from the mains at any time.

• Install the machine such that the connection for the mains cable is

easily accessible.

WARNING

2 3 4

5 6 7 8 9

3.5 Removing the transport safeguard

Remove the cardboard cross, which serves to protect the knives during transport), from the inside of the grinding jar.

3.6 Installation of the machine

Installation height: maximum 2000 m above sea level

3.7 Electrical connection

When connecting the power cable to the mains supply, use an external fusethat complies with the regulations applicable to the place of installation .

• Please check the type plate for details on the necessary voltage and

frequency for the device.

• Make sure the levels agree with the existing mains power supply.

• Use the supplied connection cable to connect the device to the mains power

supply.

3.8 Type plate description

Fig. 1: Type plate lettering

Transport, scope of delivery, installation

1 Device designation 2 Year of production 3 Part number 4 Serial number 5 Manufacturer’s address 6 CE marking 7 Disposal label 8 Bar code 9 Power version 10 Mains frequency 11 Capacity 12 Amperage 13 Number of fuses 14 Fuse type and fuse strength In the case of questions please provide the device designation (1) or the part

number (3) and the serial number (4) of the device.

Technical data

NOTICE

Area of use of the machine

– This machine is a laboratory machine designed for 8-hour single-shift

operation.

• This machine may not be used as a production machine nor is it intended for continuous operation.

4 Technical data

4.1 Use of the machine for the intended purpose

Target group: Operators Machine type designation: GM 300

The GRINDOMIX GM 300 laboratory knife mill serves to mill, homogenise and mix

soft to medium-hard, aqueous, fatty, fibrous and dry materials within seconds

so that they will be suitable for analysis. It can process sample volumes of up to 4.5 litres quickly and reproducibly. The GRINDOMIX GM 300 is designed for quantities up to approx. 4500 ml, large

volume materials up to 1000 ml. The feed size is < 130 mm. It is particularly engineered to cut up the following materials: fish, meat, vegetables, cheese, fodder pellets, seeds, bacon, sausage, dry bakery

products and pasta, all products with high water, fat and fibrous content and similar materials.

The GRINDOMIX GM 300 meets the special laboratory and analysis requirements and in its range of performance it far outstrips that of commercially available household mixers.

Our applications laboratory will be happy to give you more information.

 Fast and gentle size reduction and homogenisation of food  Speed selectable from 500 - 4,000 rpm  Powerful 1.5 KW industrial motor  All parts which come in contact with the sample material are autoclaveable  Easy changing and cleaning of the grinding tools  Interval operation and reverse mode possible  Mode for preliminary size reduction and fine size reduction  Digital parameter preselection  10 parameter combinations can be stored

4.2 Protective equipment

Manual access into the GRINDOMIX GM300 grinding chamber is prevented by an electromechanical locking device.

Technical data

CAUTION

Damage to hearing

The level of noise can be high depending on the type of material, the knife used, the speed set and the duration of the grinding process.

- Noise that is excessive in terms of level and duration can cause impaired or permanently damaged hearing.

• Ensure suitable sound-proofing measures or wear hearing protection.

CAUTION

Possibility of acoustic signals not being heard

Loud grinding noises

- Acoustic alarms and voice communication might not be heard.

• Consider the volume of the grinding noise in relation to other acoustic signals in the work environment. You may wish to use additional visual signals.

The device can be started only if the housing cover is closed and can be opened only if the motor has stopped completely.

The actual speed is displayed during operation. The safety device checks that the grinding jar and cover are in place before the

grinding process can be started.

4.3 Emissions

If the speed deviates by more than 15 %, the device will switch off automatically.

Noise characteristics: The noise is measured in conformance to DIN 45635-031-01-KL3. The noise characteristics are influenced by the properties of the material being

ground.

Example 1):

Sound-power level LWA = 93.5 dB (A) Workplace-related emissions level Lp Aeq = 78.7 dB (A) Operating conditions: Container = plastic container with cover Grinding organ = stainless steel knives Feed material = quartz sand Feed volume = 2.5 l Speed = 3000 min-1

4.4 Degree of protection

Grinding chamber and keyboard IP45

In the area of the ventilation slots IP20

+ 30 hidden pages

Retsch GM 300 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual