Fritsch Planetary Micro Mill PULVERISETTE 7 Operating instructions

Brand: Fritsch

Model: Planetary Micro Mill PULVERISETTE 7

Type: Operating instructions

Operang instrucons

PLANETARY MICRO MILL

PULVERISETTE 7

premium line

Read the instrucons prior to performing any task!

Valid starng with: 07.5000/03380

Translaon of the original operang instrucons

Version 07/2023 Index 002

Fritsch GmbH

Milling and Sizing

Industriestraße 8

D - 55743 Idar-Oberstein

Telephone: +49 6784 70-0

Email: inf[email protected]

Internet: www.fritsch.de

Cercaons and CE conformity

Cercaon

CE Conformity

Cercaons and CE conformity

Fritsch GmbH has been cered by the SGS-TÜV Saar GmbH.

An audit cered that Fritsch GmbH conforms to the requirements of the DIN EN

ISO 9001:2015.

The enclosed Conformity Declaraon lists the guidelines the FRITSCH instrument

conforms to, to be able to bear the CE mark and the UKCA mark!

Table of contents

1 Safety informaon and use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.1 Requirements for the user. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2 Scope of applicaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2.1 Operang principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.2.2 Drive motor and speed regulaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3 Obligaons of the operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.4 Informaon on hazards and symbols used in this manual. . . . . . . . . . . . 11

1.5 Informaon on hazards at the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.6 Device safety informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.7 Protecve equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.8 Hazardous points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.9 Electrical safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.9.1 General informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.9.2 Protecon against restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.9.3 Overload protecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.9.4 Imbalance detecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.2 Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3 Operang noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.4 Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5 Current consumpon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.6 Protecon class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.7 Power consumpon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.8 Electrical fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9 Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.10 Final neness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3Installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 Seng up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4 Ambient condions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.5 Electrical connecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table of contents

4Inial start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.1 Switching on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.2 Funcon check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3 Switching o. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5 Using the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.1 Safety informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.1.1 General informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1.2 Overpressure relief of the grinding bowls. . . . . . . . . . . . . . . . . . . . . . . 27

5.1.3 Grinding bowl lid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2 Choice of grinding bowls and grinding balls. . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.1 Size of the grinding balls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.2 Number of balls per grinding bowl (independent of the material

quanty). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2.3 Calculated weight of a ball. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 Impact of the ball size and the material during grinding. . . . . . . . . . . . . 33

5.4 Filling quanes of grinding bowls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.5 Filling the grinding bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6 Factors with an impact on grinding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6.1 Running me (grinding duraon). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6.2 Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6.3 Reverse mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.6.4 Number and size of the balls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.6.5 Weight of the balls (type of material). . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.7 Dry grinding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.8 Wet grinding (grinding in a suspension). . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.8.1 The eect of high temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.8.2 Safety measures against an excessively high pressure. . . . . . . . . . . . . 38

5.9 Handling the grinding bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.9.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.9.2 Opening the grinding bowl aer a grinding operaon. . . . . . . . . . . . . 39

5.9.3 Closing the grinding bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.9.4 Inserng the grinding bowl in the grinding bowl holder. . . . . . . . . . . 43

5.9.5 Removing the grinding bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.10 Mass balance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.11 Grinding duraon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.12 Conducng a grinding operaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.12.1 Program sequence aer switching on. . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.12.2 Starng grinding at high speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table of contents

5.12.3 Overload. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.12.4 "Program" menu item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.12.5 Saving the current data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.12.6 Loading the program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.12.7 Seng the me control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.12.8 Imbalance check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

5.12.9 Switching o. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

5.12.10 Cooling the grinding bowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

6Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.1 Standard gassing lid for grinding with inert gas. . . . . . . . . . . . . . . . . . . . . 57

6.1.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.1.2 Fing the gassing lid on the grinding bowl. . . . . . . . . . . . . . . . . . . . . . 58

6.1.3 Hose adapter for grinding bowl gassing. . . . . . . . . . . . . . . . . . . . . . . . . 60

6.1.4 Removing the gassing lid in individual steps. . . . . . . . . . . . . . . . . . . . . 61

6.2 Gassing lid with stainless steel, swagelok hose couplings. . . . . . . . . . . . . 63

6.2.1 Scope of delivery / lid design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

6.2.2 Fing the gassing lid on the grinding bowl. . . . . . . . . . . . . . . . . . . . . . 64

6.2.3 Hose adapter for grinding bowl gassing. . . . . . . . . . . . . . . . . . . . . . . . . 66

6.2.4 Removing the gassing lid in individual steps. . . . . . . . . . . . . . . . . . . . . 67

6.3 EASY GTM Gas Pressure and Temperature Measuring System. . . . . . . . . 68

6.3.1 Case contents and system design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.3.2 Inserng / changing the baery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.3.3 Conguraon of transmier ID and data transmission frequency. . . 71

6.3.4 Installaon of the transmission unit on the EASY GTM bowl. . . . . . . . 72

6.3.5 Installaon of the receiver board in the P-7 premium line. . . . . . . . . . 74

6.3.6 Acvang EASY GTM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

6.3.7 Entering the temperature limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

6.3.8 Entering the pressure limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

6.3.9 Selecng the operang mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6.3.10 Deacvang EASY GTM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6.3.11 Cleaning the EASY GTM system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

6.3.12 Baery arrangement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

6.4 Special emptying device for grinding bowls. . . . . . . . . . . . . . . . . . . . . . . . 81

6.4.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6.4.2 Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6.4.3 Cleaning the special emptying device. . . . . . . . . . . . . . . . . . . . . . . . . . 85

Table of contents

6.5 Compl. counterweight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6.5.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6.5.2 Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6.6 Planetary mills - "MillControl" soware. . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.7 Single-use grinding containers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

7 General and oponal sengs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

7.1 Standard Operaon Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

7.1.1 Acvang SOP mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

7.1.2 Deacvang SOP mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

7.1.3 Deleng SOP mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

7.2 RFID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

7.3 Language change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

7.4 Screen brightness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

7.5 Informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

7.6 Firmware update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

8Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

8.1 Grinding elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

8.2 Mill. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

8.2.1 Removing the grinding chamber cover. . . . . . . . . . . . . . . . . . . . . . . . . 97

9Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

10 Guarantee terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

11 Exclusion of liability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

12 Safety logbook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

13 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Safety informaon and use

1 Safety informaon and use

1.1 Requirements for the user

This operang manual is intended for persons assigned with operang and mon-

itoring the Fritsch PULVERISETTE 7 premium line. The operang manual and

especially its safety instrucons are to be observed by all persons working on

or with this device. In addion, the applicable rules and regulaons for accident

prevenon at the installaon site are to be observed. Always keep the operang

manual at the installaon site of the PULVERISETTE 7 premium line.

People with health problems or under the inuence of medicaon, drugs, alcohol

or exhauson must not operate this device.

The PULVERISETTE 7 premium line may only be operated by authorised persons

and serviced or repaired by trained specialists. All commissioning, maintenance

and repair work may only be carried out by technically qualied personnel.

Qualied personnel are persons who, because of their educaon, experience and

training as well as their knowledge of relevant standards, regulaons, accident

prevenon guidelines and operang condions, are authorised by those respon-

sible for the safety of the machine to carry out the required work and are able to

recognize and avoid possible hazards as dened for skilled workers in IEC 364.

In order to prevent hazards to users, follow the instrucons in this manual.

Malfuncons that impair the safety of persons, the PULVERISETTE 7 premium

line or other material property must be reced immediately. The following

informaon serves both the personal safety of operang personnel as well as

the safety of the products described and any devices connected to them: All

maintenance and repair work may only be performed by technically qualied

personnel.

This operang manual is not a complete technical descripon. Only the details

required for operaon and maintaining usability are described.

Fritsch has prepared and reviewed this operang manual with the greatest care.

However, no guarantee is made for its completeness or accuracy.

Subject to technical modicaons.

Safety informaon and use

1.2 Scope of applicaon

NOTICE

Fritsch laboratory mills are not intended for use in explosion-

hazardous areas. Fritsch laboratory mills therefore fall outside

the scope of the 94/9/EC Direcve, but within the scope of

the Machinery Direcve 2006/42/EC. The use of Fritsch labora-

tory mills within explosion-hazardous areas is not permissible

according to ATEX (94/9/EC) and is only allowed if addional

explosion protecon measures are taken. According to the

Machinery Direcve 2006/42/EC, there are no ignion sources

in our mills that can become eecve during normal operaon.

Nonetheless, there may be ignion sources in our mills that

may become eecve in the event of probable malfuncons.

Because Fritsch has only limited informaon on the composi-

on of the ground product in use, its nal neness and there-

fore ulmately its ignion temperature, no statement regarding

the explosion risk during intended use in conjuncon with the

occurring energy input can be made.

The occurrence of dust explosions can therefore never be

completely ruled out. The user must create an explosion pro-

tecon document in accordance with the ATEX 137 Direcve

(1999/92/EC) and dene appropriate protecve measures.

NOTICE

This laboratory instrument is designed for an 8-hour shi oper-

aon at 30 % duty cycle and not for connuous operaon.

The duty cycle is dened as the rao of load duraon to run

me. The run me is dened as load duraon plus pause me.

According to DIN EN 60034-1 (VDE 0530, IEC34-1) a connuous

operaon already takes place aer a standardised run me of

10 minutes. At 30 % duty cycle (DC = rao of load duraon to

run me) a load duraon of 3 minutes and a pause me of 7

minutes would be within standard.

If the standardised run me of 10 minutes is exceeded, then,

by denion, there would be a connuous operaon and

disproporonate temperature increases may occur, possibly

involving increased wear.

The planetary micro mill, "PULVERISETTE 7 premium line", can be applied univer-

sally for the fast dry or wet grinding of inorganic and organic samples for analysis,

quality inspecon or material tesng.

During synthesis, the planetary micro mill is used for mixing and homogenizaon

of dry samples, emulsions or suspensions.

The planetary micro mill,

premium line

, described here is an equipment item for

use in industrial environments.

The device may be used for these purposes only.

Safety informaon and use

1.2.1 Operang principle

aRotaon of the grinding bowl

b Centrifugal force

cRotaon of the support disc

The source material is crushed and ground by grinding balls in a grinding bowl.

The centrifugal forces from the rotaon of the grinding bowls around their own

axis and from the rotang support disc have an eect on the contents of the

grinding bowl, consisng of material to be ground and grinding balls.

The grinding bowl and the support disc have opposite direcons of rotaon,

in order that the centrifugal forces alternate in the same direcon and in the

opposite direcon.

The result is that the grinding balls run down the inside of the bowl's wall with

a fricon eect and the grinding balls hit the opposite wall of the grinding bowl

with an impact eect.

1.2.2 Drive motor and speed regulaon

A maintenance-free electric motor operated via frequency converter is used as

the drive.

1.3 Obligaons of the operator

Before using the PULVERISETTE 7 premium line, this manual is to be carefully

read and understood. The use of the PULVERISETTE 7 premium line requires

technical knowledge; only commercial use is permied.

The operang personnel must be familiar with the content of the operang

manual. For this reason, it is very important that these persons actually receive

the present operang manual. Ensure that the operang manual is always near

the device.

The PULVERISETTE 7 premium line may exclusively be used within the scope of

applicaons set down in this manual and within the framework of guidelines put

forth in this manual. In case of non-compliance or improper use, the customer

assumes full liability for the funconal capability of the PULVERISETTE 7 premium

line and for any damage or injury arising from failure to full this obligaon.

By using the PULVERISETTE 7 premium line the customer agrees with this and

recognizes that defects, malfuncons or errors cannot be completely excluded.

To prevent risk of damage to persons or property or of other direct or indirect

damage, resulng from this or other causes, the customer must implement su‐

cient and comprehensive safety measures for working with the PULVERISETTE 7

premium line.

Neither compliance with this manual nor the condions and methods used

during installaon, operaon, use and maintenance of the PULVERISETTE 7

premium line can be monitored by Fritsch GmbH. Improper execuon of the

installaon can result in property damage and thus endanger persons. Therefore,

we assume absolutely no responsibility or liability for loss, damage or costs

that result from errors at installaon, improper operaon or improper use or

improper maintenance or are in any way connected to these.

The applicable accident prevenon guidelines must be complied with.

Generally applicable legal and other obligatory regulaons regarding environ-

mental protecon must be observed.

Safety informaon and use

Special safety informaon

1.4 Informaon on hazards and symbols used in this manual

Safety informaon

Safety informaon in this manual is designated by symbols. Safety informaon is

introduced by keywords that express the extent of the hazard.

DANGER

This symbol and keyword combinaon points out a directly

hazardous situaon that can result in death or serious injury if

not avoided.

WARNING

This symbol and keyword combinaon points out a possibly

hazardous situaon that can result in death or serious injury if

not avoided.

CAUTION

This symbol and keyword combinaon points out a possibly

hazardous situaon that can result in slight or minor injury if

not avoided.

NOTICE

This symbol and keyword combinaon points out a possibly

hazardous situaon that can result in property damage if not

avoided.

To call aenon to specic hazards, the following symbols are used in the safety

informaon:

DANGER

This symbol and keyword combinaon points out a directly haz-

ardous situaon due to electrical current. Ignoring informaon

with this designaon will result in serious or fatal injury.

DANGER

This symbol and keyword combinaon designates contents and

instrucons for proper use of the machine in explosive areas

or with explosive substances. Ignoring informaon with this

designaon will result in serious or fatal injury.

DANGER

This symbol and keyword combinaon designates contents

and instrucons for proper use of the machine with combus-

ble substances. Ignoring informaon with this designaon will

result in serious or fatal injury.

Safety informaon and use

Safety informaon in the procedure instrucons

Tips and recommendaons

Further designaons

WARNING

This symbol and keyword combinaon points out a directly

hazardous situaon due to movable parts. Ignoring informaon

with this designaon can result in hand injuries.

WARNING

This symbol and keyword combinaon points out a directly

hazardous situaon due to hot surfaces. Ignoring informaon

with this designaon can result in serious burn injuries due to

skin contact with hot surfaces.

Safety informaon can refer to specic, individual procedure instrucons. Such

safety informaon is embedded in the procedure instrucons so that the text can

be read without interrupon as the procedure is being carried out. The keywords

described above are used.

Example:

1. Loosen screw.

2. CAUTION

Risk of entrapment at the lid.

Close the lid carefully.

3. Tighten screw.

This symbol emphasises useful ps and recommendaons as

wells as informaon for ecient operaon without malfunc-

on.

To emphasise procedure instrucons, results, lists, references and other ele-

ments, the following designaons are used in this manual:

Designaon Explanaon

1., 2., 3. ...

Step-by-step procedure instrucons

ðResults of steps in the procedure

References to secons in this manual and relevant

documentaon

Lists without a specic order

Safety informaon and use

Designaon Explanaon

[Buon]

Operang elements (e.g. push buon, switch), dis-

play elements (e.g. signal lamps)

‘Display’

Screen elements (e.g. buons, funcon key assign-

ment)

1.5 Informaon on hazards at the device

There is a laser radiaon hazard warning on the back of the device.

It is explained below.

Do not remove the informaon and warning signs.

Cauon! Hot surface

Cauon! Crushing hazard

1.6 Device safety informaon

■Only use genuine accessories and genuine spare parts. Failure to observe this

instrucon can compromise the safety of the machine.

■Accident-proof conduct is to be strictly followed during all work.

Safety informaon and use

DANGER

Explosion hazard!

−Wear safety goggles. The high temperature or chemical

reacons during the grinding process may result in over-

pressure in the grinding bowl. Splashing hazard! Explosion

hazard! Do not fail to observe ⮫

Chapter 5.1 ‘Safety infor-

maon’ on page 26

and ⮫

Chapter 5.8.2 ‘Safety measures

against an excessively high pressure’ on page 38

−Never use brute force to open the grinding bowl. Open the

grinding bowl only if you are sure that the internal pres-

sure has been released completely. Observe the opening

instrucons in ⮫

Chapter 5.9.2 ‘Opening the grinding bowl

aer a grinding operaon’ on page 39

and ⮫

Chapter

5.8.2 ‘Safety measures against an excessively high pres-

sure’ on page 38

−The device may only be operated indoors. The surrounding

air must not contain any electrically conducve dust.

−When grinding oxidisable substances (e.g. metal or coal),

there is a risk of spontaneous combuson (dust explosion)

if the proporon of ne parcles exceeds a certain per-

centage. Chemical reacons are also possible during wet

grinding. When grinding these kinds of substances, special

safety measures (e.g. wet grinding) must be taken and the

work must be supervised by a specialist.

−The device is not explosion-protected and is not suitable

for grinding explosive materials.

DANGER

−Do not reuse damaged accessories.

−If the planetary micro mill or its components are damaged

or if its operaon is not as described in the operang

manual, the device may not be put into service. In such a

case, consult your Fritsch GmbH representave or distrib-

utor.

WARNING

The maximum accepted concentraon (MAC) levels of the valid

safety regulaons must be observed. If necessary, venlaon

must be provided or the machine must be operated under an

extractor hood.

Safety informaon and use

CAUTION

−Wear hearing protecon! Above a sound level of 90dB(A)

−Wear safety gloves! The grinding bowls may get very

hot. See ⮫

Chapter 1.8 ‘Hazardous points’ on page 16

⮫

Chapter 5.8.1 ‘The eect of high temperature’

on page 38

and ⮫

Chapter 5.12.10 ‘Cooling the grinding

bowl’ on page 56

−Do not grind with the device for several hours in succes-

sion without cooling phases. Risk of overheang!

−The device may not be run without supervision. In certain

operang states, the vibraons may result in a shiing

eect on the surface.

■Do not remove the informaon signs.

■Unauthorised alteraon of the device will void Fritsch's declaraon of con-

formity to European direcves and void the guarantee.

■If, aer reading the operang manual, there are sll quesons or problems,

please do not hesitate to contact our specialists.

1.7 Protecve equipment

Protecve equipment is to be used as intended and may not

be disabled or removed.

All protecve equipment is to be regularly checked for integ-

rity and proper funconing.

DANGER

−The valves on the grinding bowls may not be repaired.

■Each me before using the planetary micro mill, check that the protecve

equipment is not damaged or contaminated (see ⮫

Chapter 1.8 ‘Hazardous

points’ on page 16

, ⮫

Chapter 1.9 ‘Electrical safety’ on page 16

and

⮫

Chapter 5.1 ‘Safety informaon’ on page 26

■Do not make any changes to the protecve equipment, apart from the main-

tenance tasks listed in the operang manual.

■The device's grinding chamber cover can only be opened and closed by a

motor and therefore not without a connecon to the power supply. See

⮫

Chapter 1.9.2 ‘Protecon against restart’ on page 16

■It can only be opened when the mill comes to a stop.

■The grinding chamber cover must always be closed during grinding.

■When the grinding chamber cover is open, the mill's mechanical unit is

locked mechanically to prevent it from starng.

Safety informaon and use

1.8 Hazardous points

■Crushing hazard when opening and closing the grinding chamber cover (the

closing force can be adjusted, consult Fritsch GmbH).

■Crushing hazard when adjusng the control display.

■Crushing hazard when using the locking lever.

CAUTION

Fire hazard at the grinding bowl aer grinding and during the

grinding pauses. See ⮫

Chapter 5.3 ‘Impact of the ball size and

the material during grinding’ on page 33

, ⮫

Chapter 5.8.1 ‘The

eect of high temperature’ on page 38

and ⮫

Chapter 5.12.10

‘Cooling the grinding bowl’ on page 56

DANGER

The grinding bowl may open extremely suddenly if the internal

pressure is too high. Never use brute force to open the bowl.

Do not fail to observe ⮫

Chapter 5.8.1 ‘The eect of high tem-

perature’ on page 38

and ⮫

Chapter 5.8.2 ‘Safety measures

against an excessively high pressure’ on page 38

1.9 Electrical safety

1.9.1 General informaon

■The main switch separates the device from the power supply with two poles.

■Turn o the main switch if the planetary micro mill is "out of service" for

prolonged periods (e.g. overnight).

1.9.2 Protecon against restart

In the case of a power failure during operaon or aer turning the device o at

the main switch, the grinding chamber cover is locked. When the power supply is

restored, the grinding chamber is not opened unl the soware detects that the

drive is staonary. For safety reasons, however, the planetary micro mill does not

restart.

Safety informaon and use

1.9.3 Overload protecon

■In the event of an overload, the device reduces the speed in a controlled

manner. This special operang state is indicated on the display.

■The device shuts down if the drive motor becomes too hot.

■The device shuts down if the drive is blocked.

1.9.4 Imbalance detecon

The device shuts down if there is excessive imbalance. See ⮫

Chapter 5 ‘Using the

device’ on page 26

Technical data

2 Technical data

2.1 Dimensions

360 mm x 400 mm x 580 mm

(height x width x depth)

2.2 Weight

Net: approx. 44 kg

Gross: approx. 61 kg

2.3 Operang noise

The sound level is approx. 74 dB (A). This value uctuates signicantly, depending

on the speed and material to be ground and on the type of grinding bowl and

grinding balls.

The device is rated with IP 20.

2.4 Voltage

The device can be operated in two voltage ranges:

■Wide range input 100-240 V ± 10 %.

Transient overvoltage according to overvoltage category II permied.

If the device is to be operated with two dierent voltages,

e.g. 115 V or 230 V, it must be disconnected from the power

supply at least 60 seconds before switching over the voltage.

2.5 Current consumpon

The maximum current consumpon is approx. 10 A (115 V)

or 5 A (230 V).

2.6 Protecon class

IP 21

2.7 Power consumpon

The maximum power consumpon is approx. 1100 W.

2.8 Electrical fuses

■Fuses on the back of device: 2x10 A T

Technical data

2.9 Material

■Maximum feed amount in the case of hard material approx. 5 mm

■Maximum feed 1 - 60 ml

2.10 Final neness

■Dry grinding up to d50 < 20 µm (depending on the material)

■Wet grinding up to d50 < 0.1 µm (depending on the material)

Installaon

3Installaon

3.1 Transport

The device is delivered on a transport pallet with a wooden cover. We recom-

mend using a forkli or pallet truck for transporng the packed device.

DANGER

Do not step under the transport pallet during transport.

WARNING

Improper liing can lead to personal injury or property

damage. The machine is only to be lied with suitable equip-

ment and by qualied personnel.

The guarantee excludes all claims for damage due to improper transport.

3.2 Unpacking

■Open the straps of the packaging.

■Remove the lid from the crate or open the crate upwards.

■Remove the accessory cardboard pieces and addional padding.

■Li the upper part of the packaging o the transport pallet.

■The device can now be lied o the pallet and out of the foam padding.

CAUTION

Crushing hazard!

Always li with 2 persons.

Hold the boom edge of the housing when liing.

■Compare the contents of the delivery with your order.

Grinding bowls made of hardened steel may have recesses on

the surface caused during producon. They do not have an

impact on grinding or the grinding results and usually disap-

pear aer the rst grinding operaon.

These recesses on the surface, if present, are within the range

of the permissible producon tolerances. Complaints relang

to such grinding bowls therefore cannot be accepted.

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Fritsch Planetary Micro Mill PULVERISETTE 7 Operating instructions

Fritsch Planetary Micro Mill PULVERISETTE 7 Operating instructions

Fritsch Planetary Micro Mill PULVERISETTE 7 Operating instructions

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