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© Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany | 26.11.2019 Version 0017 

Manual 

Knife Mill GM 300 

 

 

  

 

 

 

Translation 

 

Summary of Contents for GRINDOMIX GM 200

Page 1: ... Retsch GmbH 42781 Haan Retsch Allee 1 5 Germany 26 11 2019 Version 0017 Manual Knife Mill GM 300 Translation ...

Page 2: ...2 Copyright Copyright by Retsch GmbH Retsch Allee 1 5 42781 Haan Germany ...

Page 3: ...th Hood Cover Open 16 4 9 3 Weight 16 4 10 Required Floor Space 16 5 Operating the Device 17 5 1 Views of the device 17 5 2 Operating elements and displays 19 5 3 Overview table of the parts of the device 20 5 4 Switching On and Off 21 5 5 Opening and Closing of the Device 21 5 6 Handling the Knife 21 5 7 Inserting the Grinding Jar 23 5 7 1 Grinding container use with different materials 25 5 8 Gr...

Page 4: ...34 6 8 Basic settings 34 6 8 1 Automatic opening 34 6 8 2 Language 34 6 8 3 Brightness 34 6 8 4 Date 34 6 8 5 Time 35 6 8 6 Acoustic warning signal 35 6 8 7 Service 35 6 8 7 1 Operating hours 35 6 8 7 2 Software version of display 35 6 8 7 3 Software version of the controller 35 6 8 7 4 Update software 36 6 9 Emergency Unlocking 36 7 Working instructions 38 8 Fault messages 39 9 Cleaning and servi...

Page 5: ...Notes on the manual 5 ...

Page 6: ...tion 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 Chan...

Page 7: ...sult 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...

Page 8: ...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 ...

Page 9: ...y 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 ...

Page 10: ...e 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...

Page 11: ...ocked shaken or thrown during transport 3 3 Temperature fluctuations and condensed water 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 3 4 Conditions for the Installation Site Ambient temperature 5 C to 40 C ...

Page 12: ...ion of the machine It must be possible to disconnet the machine from the mains at any time Install the machine such that the connection for the mains cable is easily accessible 3 7 Electrical Connection 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...

Page 13: ... 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 ...

Page 14: ...ore information Fast and gentle size reduction and homogenisation of food Speed selectable from 500 4 000 rpm Powerful 1 5 KW industrial motor All parts which come in contact with the sample material are autoclaveable Easy changing and cleaning of the grinding tools Interval operation and reverse mode possible Mode for preliminary size reduction and fine size reduction Digital parameter preselecti...

Page 15: ...o consideration when designing the acoustic signals in the working environment Where necessary use additional visual signals Noise characteristics The noise is measured in conformance to DIN 45635 031 01 KL3 The noise characteristics are influenced by the properties of the material being ground Example 1 Sound power level LWA 93 5 dB A Workplace related emissions level Lp Aeq 78 7 dB A Operating c...

Page 16: ...to 4000 rpm 4 9 Dimensions and Weight 4 9 1 Height with Hood Cover Closed Height 340 mm Width 440 mm Depth 440 mm 4 9 2 Height with Hood Cover Open Height 700 mm Width 440 mm Depth 430 mm 4 9 3 Weight approx 30 kg 4 10 Required Floor Space 440 mm x 440 mm no safety margins required ...

Page 17: ...Operating the Device 17 5 Operating the Device 5 1 Views of the device 0 Fig 2 Front view Fig 3 Rear view B A C D E G F H I J O M A B N C L K NE ...

Page 18: ...Operating the Device 18 Fig 4 Detailed views of housing Fig 5 Detail of grinding jar disassembly P Q E R S X W ...

Page 19: ...Operating the Device 19 5 2 Operating elements and displays Fig 6 Graphical View of the Control Panel F H I J G ...

Page 20: ...nd operating conditions H START button To start the grinding process I STOP button To stop the grinding process J Button to open the flap Releases the flap lock K Not assigned No function L Serial port Software update and service M On off button Disconnects device from the power supply N Housing fan Cools the drive O Electrical connection IEC connector P Tightening Is held by the electromechanical...

Page 21: ...h on the back of the device is switched on Shut the housing lid B and press it downwards until the lid closure is activated A sensor detects the closure of the housing lid and the motor driven lid closure is switched on The housing lid is closed automatically 5 6 Handling the Knife CAUTION Injuries in the form of cuts Sharp knife blades The knife blades are very sharp and if handled incorrectly th...

Page 22: ...aft and held by magnetic force The sealing lip DL of the V ring seal V must point downwards when inserted See Fig for knife assembly NOTICE Remove the knife after the grinding process Do not leave the knife in the sample material Clean the knife after grinding and then dry carefully CAUTION If the bottom bent blade of the knife is so deformed that it touches the inside of the jar it must be replac...

Page 23: ...inding Jar CAUTION When grinding with dry ice CO2 give consideration to the quantity of dry ice used and the volume of gas that will develop accordingly The grinding jar lids have varying ventilation characteristics and can be pressed upwards by the large volume of the generated gas CAUTION Scalding burns Hot grinding jar Depending on the grinding process the material being ground and accordingly ...

Page 24: ... on the material the filling level may be as high as up to 2 cm under the edge of jar CAUTION Note that some materials may increase knife wear damage the knife or damage the jar The knife must not be reground CAUTION If the sample to be ground is dry use a steel grinding jar Dry grinding stock can become very hot and damage the PVC grinding jar 5 Put the lid onto the grinding jar with one or two s...

Page 25: ...ications CAUTION Please consult the manufacturer before using organic solvents NOTICE Always grind hard materials in stainless steel grinding container and use the reverse mode i e counter clockwise direction of rotation beating Never use plastic grinding container which have stress cracking These must be replaced immediately 5 8 Grinding Jar Lid Sealing Rings The grinding jar cover is supplied as...

Page 26: ...Device 26 Fig 13 Use of one or two sealing rings NOTE Thin fluid samples should be started at a low speed Increase the speed gradually The maximum speed for liquid samples may not exceed 2 500 revolutions per minute ...

Page 27: ...speed for liquid samples is just 2500 revolutions per minute Fig 14 Maximum speed with thin fluid samples 5 10 Interrupting and continuing the grinding process Press the STOP I key The grinding process is interrupted or stopped 5 11 Stopping the grinding process Interrupting the Grinding Process Pause Press the STOP key I once The grinding process is interrupted Stopping the Grinding Process End P...

Page 28: ... jar recognition C4 Icon for scrolling direction Displays the possible scrolling directions C5 Grinding parameters Display of values Automatic opening switched on Automatic opening switched off Direction reversal switched on Direction reversal switched off Motor or frequency converter too hot Power Grinding output display Acoustic warning signal on Acoustic warning signal off Scrolling upwards or ...

Page 29: ...ems Press II Press the operating button to confirm settings Press III Keeping the operating button pressed for longer takes you back to the basic screen Level 1 6 2 2 Navigating between operating modes Rotate the operating button in a clockwise direction until the dark line cursor is in the navigation menu C1 Press the operating button F The icon for the scrolling direction C4 changes from to By p...

Page 30: ... while simultaneously pressing the buttons START STOP Open hood After selecting the correct language switch the device off and then immediately back on Confirm your selection by pressing the operating button The device is now set permanently to your language and you are in the main menu ...

Page 31: ...Time Acoustic signal Service Operating hours Software version of display Software version of controller Update software Display Software update will be started automatically Controller Software update will be started automatically Back Back 6 5 Operating modes You can select the following operating modes using the menu navigation C1 6 5 1 Manual operation When this function has been set you can ac...

Page 32: ... time The device is started with the preselected grinding time and at the last used speed A direction reversal with pause time is not switched on 6 6 2 Speed You can adjust the speed in this menu 500 to 4000 revolutions per minute The device is started with the preselected grinding time and at the preselected speed A direction reversal with pause time is not switched on 6 6 3 Direction of rotation...

Page 33: ...nding time and speed can be saved in a memory here Set the desired parameters By turning the operating button F switch to the Save parameters menu item Press the operating button F The Save parameters menu opens and the dark line cursor is on Program Press the operating button F to select a program memory location By pressing the operating button F switch to the desired memory location Press the o...

Page 34: ...ings NOTICE No grinding can be started while the basic settings menu is active 6 8 1 Automatic opening In this menu you can set whether the grinding jar lid opens automatically when grinding ends or only when the button is pressed If the function is switched off the following pictogram appears on the display as confirmation Fig 2 Automatic opening pictogram 6 8 2 Language You can select the menu l...

Page 35: ...ng incorrect operation can be supported by an acoustic warning signal The corresponding pictogram appears if the function has been switched off 6 8 7 Service 6 8 7 1 Operating hours Grinding hours are counted i e the total times between START and STOP It is not possible to manipulate the times 6 8 7 2 Software version of display Shows the software version of the display 6 8 7 3 Software version of...

Page 36: ...l risk of injury if the drive and associated device parts run on a long time without being braked Activate the emergency unlocking only when the machine has come to a complete stop and is disconnected from the power supply Fig 15 View of the back Fig 16 Emergency unlocking of flap The GM300 can be opened manually during a power failure Use a slotted screwdriver and lever the plastic plug off over ...

Page 37: ...Display and operation 37 The lid can be opened now Use the plastic plug to close the side opening again ...

Page 38: ...ry size reduction or with the sharp side fine size reduction To protect the knife from damage from hard material the knife are equipped with a counterblade The powerful industrial motor with 1500 watts in continuous duty or 3000 watts in brief peak performance drives the knife indirectly Preprogrammable speeds that are electronically maintained at a constant level allow a high level of reproducibi...

Page 39: ...TOR E20 FAILURE MAIN BOARD E23 FAILURE FAN E26 FAILURE FREQUENCY CONVERTER E41 FAILURE SPEED SENSOR E50 FAILURE IN SAFETY CIRCUIT E51 SATETY SWITCH DEFECTIVE H10 ALLOW DRIVE TO COOL DOWN H11 DRIVE BLOCKED H40 CLOSE MACHINE H42 OPEN AND CLOSE LID COVER H47 CHECK LID SWITCH H48 TOTAL GRINDING TIME LONGER THAN 9 MINUTES ...

Page 40: ...washer safe components and exceptions Fig 18 Dishwasher safe components NOTICE Dry all metallic parts of the grinding jar and the knife after drying to prevent possible corrosion Not autoclavable Autoclavable and dishwasher safe Autoclavable and dishwasher safe Dishwasher safe ...

Page 41: ...s protective oxide layer has been damaged This corrosion can be prevented if you dry the grinding tools after rinsing In the case of the steel used by Retsch the protective layer is automatically continuously formed through a reaction with oxygen O2 Should areas of rust develop despite this they can be removed by vigorous polishing Fig 20 Ring seal NOTE Check the state of the V ring seal V regular...

Page 42: ...e the lid SD Put the gravity lid onto the grinding jar Insert the grinding jar with gravity lid into the device Close the flap and start the grinding process Disengage the gravity lid during grinding and let it drop Once the mill is started the required grinding chamber capacity changes due to the circulating effects and centrifugal forces etc acting on the now liquefied grinding stock The gravity...

Page 43: ...nal provisions that are based on the EU Directive 2002 96 EC on Waste Electrical and Electronic Equipment WEEE Accordingly all machines supplied after 13 08 2005 in the business to business area to which this product is classified may no longer be disposed of with municipal or household waste To document this they have the following label Fig 22 Disposal label Since the disposal regulations within...

Page 44: ... label 13 Disposal label 43 Drive 15 Dry ice 23 Dusty sample 25 E Electrical connection 12 Emergency unlocking 36 Emergency unlocking of flap 36 Emissions 15 End 27 Explanations of the safety instructions 7 External fuse 12 F face spanner 24 Fault messages 39 Front view 17 Function 20 28 Fuse strength 13 Fuse type 13 G General safety instructions 8 Graphical view of the Control Panel 19 Gravity li...

Page 45: ...fety warnings 7 Save parameters 33 Sealing lip 22 Sealing rings 25 Securing recess 42 Selection bar 29 Sequences 01 to 10 32 Serial number 13 serious injury 7 Service 35 Service Address 9 Setting the language 34 Software update 36 Software version of display 35 Software version of the controller 35 Sound level 15 Speed 32 Speed 16 Starting the grinding process 27 Stopping the grinding process 27 S...

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Page 47: ...Copyright Copyright by Retsch GmbH Retsch Allee 1 5 42781 Haan Germany ...

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