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Summary of Contents for Retsch MM 400
- Page 1 Manual Mixer Mill MM 400 Translation © Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany | 04.04.2023 Version 0000...
- Page 2 Copyright © Copyright by Retsch GmbH Retsch-Allee 1-5 42781 Haan Germany...
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Page 3: Table Of Contents
To the eyes .......................... 15 2.9.4.2 On the skin ........................... 15 2.10 Confirmation Form for the Managing Operator................16 The Mixer Mill MM 400 ......................... 17 Technical data ..........................17 Emissions............................19 Views of the device .......................... 20 3.3.1 Front ............................. 20 3.3.2... - Page 4 Connecting the device to the power supply ..................30 Operating the Device .......................... 31 Switching the device on/off ......................32 Opening and Closing of the Device ....................32 Specifications regarding grinding balls and grinding jars ..............33 6.3.1 Grinding Jar Identification ......................34 6.3.2 Recommended maximum ball sizes ....................
- Page 5 Adapter for conical centrifuge tubes and adapter for 30 ml wide mouth bottles ......69 Adapter for 4 x 5 ml steel grinding jars .................... 71 Servicing .............................. 72 10.1 Cleaning ............................72 10.1.1 Cleaning the outside of the device ..................73 10.1.2 Cleaning the collecting tray ......................
- Page 6 Notes on the manual...
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Page 7: Notes On The Manual
This manual does not contain any repair instructions. Please contact your supplier or contact Retsch GmbH directly if anything is unclear or you have questions about these guidelines or the device, or in the case of any faults or necessary repairs. -
Page 8: Explanations Of The Safety Instructions
Notes on the manual In the descriptions of these operating instructions, the Retsch mixer mill MM 400 is mostly referred to as a device. 1.4 Explanations of the Safety Instructions DANGER D1.0000 Risk of fatal injuries Source of danger − Possible consequences if the danger is ignored. -
Page 9: Safety
8 mm. The device is also suitable for the cryogenic grinding of sample materials. As a laboratory device, the MM 400 is only to be used for the preparation of samples and not as a production machine. -
Page 10: Obligations Of The Operating Company
Safety 2.3 Obligations of the operating company 2.3.1 Provisions The user bears responsibility for ensuring that people working with the device and the corresponding equipment have taken note of and understood all relevant safety regulations. 2.3.2 Personnel • Ensure that only trained personnel are deployed whose training and experience enable them to recognise risks and avoid potential hazards. -
Page 11: Qualification Of Personnel
Safety 2.3.4 Qualification of personnel Work/operating phase Qualification Transport Qualified employee who has been trained in Installation the safe use of the device. Commissioning Operation Controlling Servicing Disposal Work on the electrical equipment on the Electrician who, on the basis of his/her device training, knowledge and experience is able to evaluate the work assigned and... -
Page 12: Repairs
2.5 Repairs This manual does not contain any repair instructions. For safety reasons, repairs may only be carried out by Retsch GmbH or an authorised representative or by qualified service technicians. In case of repair, please inform… …the Retsch GmbH representative in your country, …your supplier, or... -
Page 13: Preventing Damage To Equipment
Safety • Take note of the safety data sheets for the samples and follow instructions by taking appropriate measures in advance. • Do not grind any explosive and/or flammable substances. • Do not grind any substances that might become explosive and/or flammable during grinding. -
Page 14: Causes
Safety depending on the individual. It is not possible to provide precise and generally applicable information on the symptoms of an oxygen deficiency. Example: under normal conditions (20° C; 1013 mbars) 1 l liquid nitrogen evaporates to produce 680 l nitrogen gas. 2.8.2 Causes An oxygen deficiency may arise during the following work or in the following conditions: –... -
Page 15: Causes
Safety – make specific materials (metal and plastic) that are not suitable for low temperatures brittle – generate strong misting depending on atmospheric humidity 2.9.2 Causes There are two types of cryogenic burns: 2.9.2.1 Burns through splashes When handling samples and in general when handling liquid nitrogen, personnel must protect themselves from splashes. -
Page 16: Confirmation Form For The Managing Operator
Safety 2.10 Confirmation Form for the Managing Operator This manual contains essential instructions for operating and maintaining the device which must be strictly observed. It is essential that they be read by the user and by the qualified staff responsible for the device before the device is commissioned. This manual must be available and accessible at the place of use at all times. -
Page 17: The Mixer Mill Mm 400
The Mixer Mill MM 400 The Mixer Mill MM 400 The MM 400 of the Retsch GmbH is a laboratory device and is used for the preparation of samples. The device enables fast crushing, grinding, mixing and homogenisation of soft, medium-hard, hard, fibrous, elastic, and brittle materials in dry and wet condition up to a particle size of 8 mm. - Page 18 The Mixer Mill MM 400 Operational data Mains connection (depending on 1~, 100-240V, 50/60Hz, 185W the variant) Mains voltage fluctuations +/- 10% Overvoltage category Category II Degree of pollution Degree II Degree of protection IP30 Electromagnetic compatibility EMC Class B according to EN 55011...
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Page 19: Emissions
The Mixer Mill MM 400 Ambient temperature 5°C to 40°C Humidity Maximum relative humidity 80% to 31°C, decreasing linearly up to 50% relative humidity at 40°C 3.2 Emissions CAUTION C.0020 Risk of injury caused by not hearing acoustic signals Loud grinding noise −... -
Page 20: Views Of The Device
The Mixer Mill MM 400 Example 2 Container 2 steel grinding jars (5ml) Shredding organ 2 tungsten carbide balls each (7mm) Broken glass (approx. 1.0mm – Feed material 1.5mm) Feed quantity 1.5ml Speed 30Hz Under these operating conditions, the workplace-related equivalent continuous noise level is = 53.4dB(A). -
Page 21: View Of The Grinding Jar Support
The Mixer Mill MM 400 Fig. 3:Device hood opened Component Function Device hood Seals the grinding chamber of the device. Touch display with For controlling the device. Selection and configuration of rotary knob grinding parameters. Grinding stations Position of the grinding jar holders for holding the grinding jars. -
Page 22: Back
The Mixer Mill MM 400 Component Function Locking pin Prevents the grinding jar lock from opening. Locking wheel To tighten or loosen the grinding jars in the grinding jar holder. Centering For centering the grinding jar in the grinding jar holder. -
Page 23: Signs On The Device
The Mixer Mill MM 400 3.4 Signs on the device Fig. 6: Back of the device Component Function Wear hearing protectors When operating the device for a longer period of time, we recommend wearing hearing protectors. Read the operating The operating instructions for the device must be read instructions before start-up and operation. -
Page 24: Type Plate Description
The Mixer Mill MM 400 3.5 Type Plate Description Fig. 7: Type plate 1 Device designation 2 Part number 3 Power version, Mains frequency 4 Fuse type and fuse strength 5 Capacity, Amperage 6 Year of production 7 Weight 8 Serial number 9 Bar code 10 Manufacturer’s address... -
Page 25: Packaging, Transport And Installation
Packaging, Transport and Installation Packaging, Transport and Installation 4.1 Accessories included with delivery 4.2 Packaging The packaging has been adapted to the mode of transport. It complies with the generally applicable packaging guidelines. NOTICE N2.0001 Complaint or return Keeping the packaging −... -
Page 26: Temperature Fluctuations And Condensation
N4.0014 Complaints Incomplete delivery or transport damage − The forwarding agent and Retsch GmbH must be notified immediately in the event of transport damage. It is otherwise possible that subsequent complaints will not be recognised. • Please check the delivery on receipt of the device for its completeness and intactness. -
Page 27: Remove Packaging
53.3 % 40 °C 50 % The MM 400 must be installed on a stable and solid surface. Vibrations from the device will otherwise be transmitted to the surroundings during the grinding process. 4.6 Remove packaging Remove the packaging and take out the device as follows: ... -
Page 28: Removing The Transportation Lock
Packaging, Transport and Installation 4.7 Removing the Transportation Lock WARNING W3.0005 Risk of injury due to the device falling down Lifting the device above head height − The device can fall causing serious injuries when lifted above head height. • Never lift the device above head height! NOTICE N10.0018... -
Page 29: First Commissioning
− Only use the supplied power cable to connect the device to the mains supply. tand hat The MM 400 must be connected to the power supply on site for initial commissioning. Ensure the following before connecting the device to the power supply: •... -
Page 30: Connecting The Device To The Power Supply
First Commissioning 5.2 Connecting the device to the power supply Connect the device to the mains as described below: Compare the voltage and frequency on the type label (17) of the device with the values on site. Plug the supplied mains cable into the device socket (12). ... -
Page 31: Operating The Device
Operating the Device Operating the Device WARNING W6.0002 Danger to life through electric shock Damaged power cable − Operating the device with a damaged power cable or plug can lead to life- threatening injuries caused by an electric shock. • Before operating the device, check the power cable and plug for damage. -
Page 32: Switching The Device On/Off
Operating the Device 6.1 Switching the device on/off Turn on the device as follows: Switch on the device using the main switch (11) on the back of the device. The opening and closing of the device hood (1) is indicated on the touch display (2). Open the hood of the device (1) by hand completely and close it again. -
Page 33: Specifications Regarding Grinding Balls And Grinding Jars
Fig. 11:Opening and closing the hood of the device 6.3 Specifications regarding grinding balls and grinding jars A very large amount of energy is applied to the sample material on the MM 400. This large amount of energy also affects the grinding jars and the grinding balls. -
Page 34: Grinding Jar Identification
Operating the Device 6.3.1 Grinding Jar Identification All grinding jars and the corresponding grinding jar covers can be identified by labelling on the outside. The labelling indicates the size and material of the grinding jar. 6.3.2 Recommended maximum ball sizes Grinding jar size Ball size 1.5 ml... -
Page 35: Opening Aid
6 mm 3 - 4 50 ml 8-20 ml 8 mm The MM 400 allows the use of 1.5 ml / 2 ml / 5 ml reaction tubes. Dry grinding Cell disruption of Recommended number of grinding biological cells balls... -
Page 36: Preparing The Grinding Jar
Operating the Device Opening aids Abb. 12: The grinding jars listed below can be opened with the correspondingly marked shapes of the opening aid: 5 ml steel grinding jar for the adapter Standard grinding jar Special grinding jar with steel casing 6.5 Preparing the grinding jar NOTICE N14.0011... -
Page 37: Opening The Grinding Jar
Operating the Device 6.5.1 Opening the grinding jar CAUTION C8.0024 Risks of burns and scalding Hot grinding jar and/or sample material − The sample material and grinding jar can get very hot during the grinding process. • After grinding, always wear protective gloves when handling the grinding jar. -
Page 38: Filling The Grinding Jar
Operating the Device 6.5.2 Filling the grinding jar Fill the grinding bowl as follows: Place grinding balls of a suitable material and the right number in the grinding jar. Add sample for grinding to the grinding balls in the grinding chamber. NOTE When filling the grinding jar, make sure that the volume does not fall below 1/4 of the total volume of the grinding jar. -
Page 39: Inserting The Grinding Jar
Operating the Device 6.6 Inserting the Grinding Jar NOTICE N16.0067 Strong vibrations and loud noise Uneven loading − The device can generate particularly strong vibrations and loud noise if loaded unevenly. • Always insert two grinding jars of equal size, even if you only want to grind one sample. -
Page 40: Inserting The Grinding Jar
(without grinding balls, without material to be ground) or an adapter must be used as a counterweight. The grinding jar adapters are available as accessories (order number 03.018.0155). Never operate the MM 400 without a grinding jar or adapter! Abb. 16:Inserting the grinding jar... -
Page 41: Grinding Process
Operating the Device 6.7 Grinding process CAUTION C9.0004 Risk of injury Explosive or flammable samples − Samples can explode or catch fire during the grinding process. • Do not use any samples in this device that carry a risk of explosion or fire. -
Page 42: Starting The Grinding Process
Operating the Device 6.8 Starting the grinding process Start the grinding process as follows: NOTEThe grinding process may only be started when the grinding points are evenly loaded. Otherwise, the device may be damaged. Close the hood (1) carefully by hand. NOTEThe hood of the device is equipped with damping. - Page 43 Operating the Device NOTICE N19.0007 Handling foodstuffs, pharmaceuticals and cosmetic products Products processed − Foodstuffs, pharmaceuticals and cosmetic products that have been processed on the device may no longer be eaten, used or put into circulation,. • Dispose of these substances according to applicable directives. Remove the grinding jar and the material to be ground as follows: Wait for the grinding process to finish.
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Page 44: Special Grinding Methods
Operating the Device Fig. 19:Opening aid for opening the grinding jar 6.10 Special grinding methods 6.10.1 Cryogenic grinding WARNING W9.0000 Risk of injury caused by liquid nitrogen Use of liquid nitrogen during cryogenic grinding − Liquid nitrogen has a boiling point of – 196 °C and causes burn-like injuries and frostbite if there is skin and eye contact. -
Page 45: Wet Grinding With Highly Flammable Materials
Operating the Device Perform a pre-embrittlement of elastic and tough sample material as follows: Pre-embrittlement of sample material for grinding must be done indirectly. Use only grinding balls and grinding jars made of stainless or hardened steel for cryogenic grinding with the cryokit. -
Page 46: Device Control
Parameters for recurring grinding processes are configured, stored and selected as necessary in the program and cycle mode. The system settings for the MM 400 are also selected from the main menu and can be changed where necessary. Fig. 20: Touchscreen and dial... -
Page 47: Menu Interface On The Touchscreen
Device control 7.1 Menu interface on the touchscreen The menu interface on the touchscreen is divided into the following areas: Fig. 21: Menu interface of the touchscreen Area Function Navigation area The following menu views can be selected from the navigation area: •... -
Page 48: Function Elements
Device control 7.2 Function elements Functional elements are selected on the touch display and configured with the rotary knob. Only the functional elements that can currently be selected and configured are displayed or active. The background of the rotary knob lights up blue when an editable value is selected. - Page 49 Device control Element Description Function Access to cycle programme mode. Cycle programme mode This allows you to create new programmes and Edit programme and cycle programmes and edit saved programmes and cycle programme cycle programmes. Deletes a created programme or a cycle Delete programme and programme.
- Page 50 Device control Coupling the device with a mobile device. Remote Setting the beeper (on/off). Beeper (on/off) Setting the display brightness. Brightness Setting the date and time. Calendar Displays the installed software. Software version Displays the previous running time. Running time Displays the device serial number.
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Page 51: Menu Navigation
Device control 7.3 Menu navigation Switch the device on by the main switch. ➔ Touchscreen is activated and the dial lights up in blue. ➔ Prompt to open and close the device hood is displayed on the touchscreen. Open and close the device hood. ➔... -
Page 52: Main Menu
Device control 7.4 Main menu Additional menu views can be called up via the main menu, parameters for the grinding process can be configured and grinding can be started. N1.1 N2.1 N3.1 S1.1 Fig. 23: Main menu after switching on the device P1.1 P2.1 S3.1... -
Page 53: Controlling The Grinding Process
Device control Element Function N1.1 System settings Goes to system settings. N2.1 Programme mode Access to programme mode. N3.1 Cycle programme mode Access to cycle programme mode. P1.1 Vibration frequency After making a selection with the touch display, the rotary knob can be used to set the vibration frequency from 3 - 30Hz. -
Page 54: Stopping The Grinding Process
Device control 7.5.3 Stopping the grinding process Press the character in order to pause the grinding. The pause character changes to the continue character Press in order to continue the grinding process. 7.5.4 Grinding process successfully completed The grinding process is automatically stopped once a specified grinding time has elapsed. -
Page 55: Select A Program
Device control S2.1 P2.2 S3.2 Fig. 27: Programme mode after starting the grinding process Element Function N1.2 Main menu Opening the main menu. N3.2 Gallery view Opens the gallery view for the programmes or the available programme presets. P1N Programme number Number of the selected programme. - Page 56 Device control P1.1 N1.2 S2.2 P2.1 N3.2 S3.1 Fig. 28: Programme mode You can change the programme by swiping up or down on the touch display. The scroll bar (B) gives a visual overview of the position within the programmes. Fig.
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Page 57: Edit A Program
Device control To activate a programme, tap on the desired programme section. Element Function N1.2 Main menu Opening the main menu. N3.2 Gallery view Opens the gallery view for the programmes or the available programme presets. P1N Programme number Number of the selected programme. -
Page 58: Save A Programme
Device control Press the parameter to be edited. Turn the rotary knob until the desired value is displayed. Press the parameter again or select another parameter so that the set value is accepted. Press (S2.3) to save the set parameters. 7.6.3 Save a Programme Proceed as follows to save the configured parameters in a program preset: ... - Page 59 Device control N1.2 S2.2 S3.1 Fig. 32: Cycle programme mode S2.1 S3.2 Fig.33: Cycle programme mode after starting the grinding process...
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Page 60: Selecting The Cycle Programme
Device control Element Function N1.2 Main menu Opening the main menu. Cycle programme Displays the number of the current cycle programme. number Parameter sets (A/B) A cycle is divided into parameter sets A and B. Parameter settings Displays the parameters of the active cycle (vibration frequency or grinding time) Repetitions cycle Displays the number of times the configured cycle is... -
Page 61: Editing The Cycle Programme
Device control Element Function N1.2 Main menu Opening the main menu Cycle programme Displays the number of the current cycle programme number Parameter sets (A/B) A cycle is divided into parameter sets A and B Parameter settings Displays the parameters of the active cycle (vibration frequency or grinding time) Repetitions cycle Displays the number of times the configured cycle is... -
Page 62: Saving The Cycle Programme
Device control Element Function N1.2 Main menu Opens the main menu. N2.2 Cancel Cancels the current operation and returns to the parent menu. Parameter settings Displays the parameters configured for the active cycle programme. Total cycle programme Displays the total duration of the cycle programme (the duration total duration is made up of the two parameter sets (A/B) and the repetitions). -
Page 63: Brightness
7.8.2 MyRetsch This section allows access to the web portal of the Retsch GmbH via a QR code. This can be read using a smartphone with the appropriate software and an internet connection. Additional information, such as tips and tricks and an application database may be accessed. -
Page 64: Device Information
Device control Fig. 37: QR code 7.8.3 Device information The following device information can be viewed in this section: • Firmware (device control) • Display (programme control) • Operating hours (hh:mm:ss) • Serial number The current software versions are listed one after the other, with the firmware listed first. The counted operating hours reflect the processing time of the device, i.e. -
Page 65: Date And Time
In this section, the following information can be viewed: • Service and connection information • Software update • Calibration The connection information contains relevant information for the service technicians of the Retsch GmbH. SE6.1 SE6.2 SE6.3 Fig.39: Device information Element Function SE6.1 Service and connection Information for the service department. -
Page 66: Calibration
Only the software to be installed may be located in the main directory. The device automatically recognises the new software. 7.8.6.2 Calibration As an additional service, Retsch GmbH offers the calibration of the software parameters ‘frequency’ and ‘time’ upon request. To do this, contact the Retsch GmbH service department. -
Page 67: Error Messages And Information Notes
Check, whether the fan is blocked by a foreign object. • Turn off the main switch and wait 30 seconds before turning the device on again. • If none of the above causes can be identified, contact the Retsch GmbH service department. - Page 68 Turn off the main switch and wait 30 seconds before turning the device on again. • If the error persists, contact the Retsch GmbH service department. Speed sensor error The target and actual speed of the drive differ from each other. •...
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Page 69: Installing Additional Equipment
Installing additional equipment Installing additional equipment Retsch’s additional equipment ensures that the mixer mill MM 400 can be flexibly adapted to different working conditions. The following additional equipment is available for Retsch’s mixer mill MM 400: • Adapter for conical centrifuge tubes •... - Page 70 Installing additional equipment Abb. 40: Centrifuge tube adapter in grinding jar support Abb. 41:Permissible arrangement of centrifuge tubes or wide mouth bottles CAUTIONCentrifuge tubes and wide mouth bottles are not suitable for grinding hard-brittle materials. They are disposable plastic vessels which must not be used more than once. The filling of the vessels deviates from the 1/3 rule, particularly regarding the application and filling: Example 1...
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Page 71: Adapter For 4 X 5 Ml Steel Grinding Jars
Installing additional equipment Example 2 Grinding balls 2 x 15 mm steel grinding balls Sample material Dried plant parts, approx. 50 % of the filling quantity of the vessel 9.2 Adapter for 4 x 5 ml steel grinding jars The device can be equipped with an adapter for 4 x 5 ml steel grinding jars for the grinding process. -
Page 72: Servicing
Improper repairs − Unauthorised and improper repairs can cause injuries. • Repairs to the device may only be carried out by Retsch GmbH , an authorised representative or by qualified service technicians. • Do not carry out any unauthorised or improper repairs to the device! This chapter contains descriptions on cleaning and servicing the device. -
Page 73: Cleaning The Outside Of The Device
All grinding balls can be cleaned with alcohol, petroleum ether or normal household washing-up liquid. Cleaning in a household dishwasher is also possible. 10.2 Maintenance The MM 400 is maintenance-free. No maintenance work needs to be carried out if the device is used as intended. -
Page 74: Wear
Improper repairs − Unauthorised and improper repairs can cause injuries. • Repairs to the device may only be carried out by Retsch GmbH , an authorised representative or by qualified service technicians. • Do not carry out any unauthorised or improper repairs to the device! The grinding tools may become worn, depending on the frequency of the grinding operation and the sample material. -
Page 75: Returning For Repair And Maintenance
When returning a device, attach the return form to the outside of the packaging. In order to eliminate any health risk to the service technicians, Retsch GmbH reserves the right to refuse the acceptance and to return the respective delivery at the expense of the sender. -
Page 76: Accessories
Information about parts subject to wear and tear and small accessories can be found in the complete catalogue for the Retsch GmbH, likewise available on the website. In the event of questions about spare parts, please contact the representative for Retsch GmbH in your country or contact Retsch GmbH directly. -
Page 77: Disposal
Disposal 12 Disposal In the case of a disposal, the respective statutory requirements must be observed. In the following, information on the disposal of electrical and electronic devices in the European Community are given. Within the European Community the disposal of electrically operated devices is regulated by national provisions that are based on the EU Directive 2012/19/EU on Waste Electrical and Electronic Equipment (WEEE). - Page 78 Disposal...
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Page 79: Index
13 Index Device designation ..........24 Device hood ............21 5 ml steel grinding jars ........71 Diagram of the menu navigation ......51 dial..............46 Dial ............... 46, 65 Accessories ............76 Dial ..............63 Accessories included with delivery ..... 25 Disclaimer ............ - Page 80 Maximum feed size ..........18 Maximum relative humidity ........ 27 Gallery view ..........55, 57 Menu interface of the touchscreen ....47 General conduct in the case of an accident ..14 Menu navigation ..........51 General rules of conduct for splashes with liquid Movable pressure plate........
- Page 81 Switching the device on/off ........ 32 Switch-on time ........... 17 Qualification of personnel ........11 Symbols ............... 7 System setting ........... 53 system settings ..........65 Read the operating instructions ......23 System settings ..........62, 63 Recommendations ........14, 15 Recommended ball sizes........
- Page 85 Copyright © Copyright by Retsch GmbH Retsch-Allee 1-5 42781 Haan Germany...
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