Retsch Grindomix gm 200 User manual

Manual

Knife Mill Grindomix GM200

Translation

Retsch GmbH

Haan, Retsch-Allee 1-5

D-42781 Haan

Federal Republic of Germany

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

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

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

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

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

3Transport, 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 Installation of the machine............................................................................................................... 10

3.6 Electrical connection........................................................................................................................ 10

3.7 Type plate description...................................................................................................................... 11

4Technical data.......................................................................................................................................12

4.1 Use of the machine for the intended purpose.................................................................................. 12

4.2 Working instructions ........................................................................................................................ 13

4.3 Protective equipment....................................................................................................................... 13

4.4 Drive output...................................................................................................................................... 13

4.5 Rated power .................................................................................................................................... 13

4.6 Motor rotation speed........................................................................................................................ 13

4.7 Rated voltage................................................................................................................................... 13

4.8 Emissions......................................................................................................................................... 14

4.8.1 Noise measurement Example 1:.................................................................................................. 14

4.8.2 Noise measurement Example 2:.................................................................................................. 14

4.9 Degree of protection ........................................................................................................................ 14

4.10 Dimensions and weight.................................................................................................................... 14

4.11 Required floor space........................................................................................................................ 15

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

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

5.2 Overview table of the parts of the device ........................................................................................ 18

5.3 Overview Table of the Operating Elements and the Display........................................................... 19

5.4 Operating the Device....................................................................................................................... 20

5.5 Switching On and Off....................................................................................................................... 20

5.6 Opening and closing of the grinding chamber................................................................................. 21

5.7 Inserting the grinding jar .................................................................................................................. 21

5.8 Use of grinding jugs depending on different materials .................................................................... 21

5.8.1 Grinding jars –plastic jugs (PP) .................................................................................................. 22

5.8.2 Grinding jars –glass jugs (borosilicate glass 3.3)....................................................................... 22

5.8.3 Grinding jars –stainless steel jugs.............................................................................................. 22

5.9 Lid and jug combinations................................................................................................................. 22

5.9.1 Lid 1000ml ................................................................................................................................... 23

5.9.2 Lid 500ml ..................................................................................................................................... 24

5.9.3 Gravitation lid............................................................................................................................... 24

5.10 Filling the vessel .............................................................................................................................. 25

5.10.1 Filling –within the device......................................................................................................... 25

5.10.2 Fílling –outside the device...................................................................................................... 26

5.11 Setting the grinding time.................................................................................................................. 27

5.12 Setting the Speed ............................................................................................................................ 28

5.13 Switching on interval or continuous mode....................................................................................... 28

5.14 Reverse grinding.............................................................................................................................. 29

5.15 Store functions................................................................................................................................. 30

5.15.1 Saving programs...................................................................................................................... 30

5.15.2 Starting a saved program ........................................................................................................ 30

5.16 Start –Pause –Stop........................................................................................................................ 30

5.16.1 Pause function......................................................................................................................... 30

5.16.2 Premature termination of grinding ........................................................................................... 30

5.17 Resetting the overload protection.................................................................................................... 30

6Cleaning and service ...........................................................................................................................31

6.1 Cleaning the Grinding Tools............................................................................................................ 32

6.2 Check the sealing lip........................................................................................................................ 33

7Fault messages.....................................................................................................................................34

8Disposal.................................................................................................................................................35

9Index ......................................................................................................................................................36

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

Notes on the Operating Manual

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1 Notes on the Operating Manual

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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.

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Changes

Subject to technical changes.

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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.

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Notes on the Operating Manual

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1.1 Explanations of the safety warnings

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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.

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.

We also use the following signal word box in the text or in the instructions on action

to be taken:

WARNING

Moderate or mild injury may result from failing to heed these safety warnings.

We give you the following warnings and corresponding content.

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.

We also use the following signal word box in the text or in the instructions on action

to be taken:

CAUTION

In the event of possible property damage we inform you with the word

“Instructions” and the corresponding content.

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.

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

be taken:

NOTICE

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Notes on the Operating Manual

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1.2 General safety instructions

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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.

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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.

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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.

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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.

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Notes on the Operating Manual

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Reperaturen

1.3 Repairs

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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:

The Retsch representative in your country

Your supplier

Retsch GmbH directly

Your Service Address:

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Confirmation

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Bestätigung

2 Confirmation

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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.

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

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Transport, scope of delivery, installation

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3 Transport, scope of delivery, installation

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3.1 Packaging

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

generally applicable packaging guidelines.

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3.2 Transport

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NOTICE

Transport

–Mechanical or electronic components may be damaged.

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

transport.

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3.3 Temperature fluctuations and condensed water

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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.

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3.4 Conditions for the place of installation

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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).

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3.5 Installation of the machine

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Installation height: maximum 2000 m above sea level

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3.6 Electrical connection

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WARNING

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.

Transport, scope of delivery, installation

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

supply.

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3.7 Type plate description

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Fig. 1: Type plate lettering

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.

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Technical data

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4 Technical data

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4.1 Use of the machine for the intended purpose

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CAUTION

Risk of explosion or fire

Changing sample characteristics

–Note that the characteristics and accordingly the danger presented by a

sample can change during sieving.

•Do not sieve any potentially explosive or combustible materials in

this device.

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CAUTION

Risk of explosion or fire

–On account of its design, the device is not suitable for use in hazardous

(potentially explosive) atmospheres.

•Do not operate the device in a hazardous atmosphere.

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CAUTION

Danger of personal injury

Dangerous nature of the sample

–Depending on the dangerous nature of your sample, take the

necessary measures to rule out any danger to persons.

•Observe the safety guidelines and datasheets of your

sample material.

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Target group: operators

Machine type designation: GM 200

This device is suitable for analytical grinding, homogenisation and mixing of soft to

medium-hard, aqueous, fatty, fibrous and dry materials in seconds. This device is

designed for quantities of approximately 700ml, large volume materials up to

1000ml.

The feed size is < 30 - 40 mm.

The device is specially designed for the grinding of the following materials :

Fish, meat, vegetables, cheese, preserves, seeds, bacon, sausage, dry baked

goods and pastries, all aqueous, fatty and fibrous products and similar materials.

The device is designed as a laboratory device for 8-hour one-shift operation with a

30% ON duration.

It is not intended for use as production machine and not intended for the mixing

and homogenisation of liquids with low viscosity (emulsions and suspensions) .

Technical data

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Arbeitsweise

4.2 Working instructions

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The grinding process of the device is effected through cutting and, in reverse

operation, through impact effect.

The cutters are straight and are arranged at right-angles to the direction of rotation.

The cutters are slim with a cutting angle of 15° and a pre-cut (pre-grind) of 30°.

With this cutting geometry the entire inertia resulting from the speed difference

between the sample material particles and the cutters can be used as cutting force.

The speed is between 2000 - 10000min-1 and is altered in stages of 500min-1 and

displayed digitally.

The preselected speed is kept constant during grinding by a speed regulator.

Interval operation has proved to be advantageous in the pre-grinding and

homogenisation of large-piece, tough, fibrous and very soft and elastic products.

The grinding duration can be set up to 3 minutes. After expiry of the grinding

duration the motor automatically switches off and the housing lid opens.

3 memories permit the storage and retrieval of frequently used speed/time

combinations by the press of a button.

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4.3 Protective equipment

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The grinding chamber of this device is interlocked by a resistant protective hood.

It is only possible to start the device when the protective hood is closed. The motor

must have come to a standstill to open the device.

In the event of fault there is also an electric emergency brake which brings the

cutters to a standstill in fractions of a second from the highest speed.

If the achievable current speed deviates from the setpoint speed by more than 5%

due to an overload, this is shown by flashing displays.

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4.4 Drive output

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Universal electric motor

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4.5 Rated power

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Motor performance: approx. 1000 watts

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4.6 Motor rotation speed

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Speed: 2000 rpm-1.... 10,000 rpm-1 ( can be altered in steps of 500 Umin-1)

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4.7 Rated voltage

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Rated voltages: 230 V 50 Hz (+/- 5%)

100-120V 50/60 Hz (+/- 5%)

Technical data

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4.8 Emissions

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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.

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Noise values: ~ 56 dB(A) (without sample material, beaker, cutters)

Noise measurement in accordance with DIN 45635-031-01-KL3

The noise values are also influenced by the properties of the sample medium.

4.8.1 Noise measurement Example 1:

Intensity of sound LWA

Workplace-related emission value LpAeq

Operating conditions:

Jug = glass jug with gravitation lid

Grind unit = cutter made of stainless steel

Feed material = tomatoes, quartered approx. 40 x 25mm

Feed quantity = 100g

4.8.2 Noise measurement Example 2:

Intensity of sound LWA

Workplace-related emission value LpAeq

Operating conditions:

jug = glass jug with gravitation lid

Grind unit = cutter made of stainless steel

Feed material = cheese approx. 20 x 20mm

Feed quantity = 100g

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4.9 Degree of protection

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–Grinding chamber and keypad - IP 42

–In the area of the ventilation slits - IP 20

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4.10 Dimensions and weight

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Closed:

Height: up to approx. 390mm

Width: 350mm

Depth : 250mm

Technical data

with open hood:

Height: up to approx. 540mm

Width: 350mm

Depth : 410mm

Weight: approx. 10.1kg (without plastic container and cutter)

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4.11 Required floor space

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200 mm x 400 mm; no safety distances required.

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Operating the machine

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5 Operating the machine

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5.1 Views of the Instrument

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Fig. 2: Front view of the machine

Operating the machine

Fig. 3: Rear view of the machine

Fig. 4: Detail view of the socket for non-heating apparatus

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Operating the machine

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5.2 Overview table of the parts of the device

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Element

Description

Function

Jar lid

Seals the grinding jar

Knife cylinder

Cuts and grinds the sample material

Grinding jar

Holds the sample material

Jar holder

Holder for the grinding jar

Operating panel with displays

Start / stop / program memory and displays

Grinding chamber hood

Protective hood for safe grinding operations

Pin for knife cylinder

Drive shaft for knife cylinder

Support for grinding jar

Centres the grinding jar and the jar holder

Grinding chamber hood interlock

Locks the grinding chamber hood into place

Thermal fuse

Protective switch against overheating

On/off switch

Separates the machine completely from the mains

Socket for non-heating apparatus

Connection for mains cable

Vent

Ventilation of motor and inside chamber

O ring

Fixes the grinding chamber holder

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Operating the machine

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Fig. 5: Operating elements and displays

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5.3 Overview Table of the Operating Elements and the Display

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Element

Description

Function

Program 1

Memory for program function

Program 2

Memory for program function

Program 3

Memory for program function

Time display

Display of the remaining grinding time

Time knob

Grinding time setting (1 second to 3 minutes)

Speed display

Display of the set speed

Speed knob

Speed setting

START button

Start of grinding

STOP / open button

End of grinding / opening of the protective hood

E10

REVERSE button

Direction reversal

E11

INTERVAL button

Grinding with short intervals

E12

QUICK button

Manually controlled grinding

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E10

E11

E12

Operating the machine

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5.4 Operating the Device

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CAUTION

Device falling down

Incorrect assembly or unsuitable workplace

- The appliance is very heavy and can therefore cause serious personal injuries if

it falls down.

Operate the device only on a sufficiently large, firm, skid-resistant and

steady workplace.

Make sure that all equipment feet are steady.

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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.

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5.5 Switching On and Off

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