MSE CENTAUR 2 - 71100.493 rev 04
Contents
1. RIS 120V ma gt t 120 Rt 12 1 eoa o 0 RVA e cs ote 120 4 Riz 330K 0 0 Du STR 258 7107 se 1 18 24 w Bg e 1005 P t 00 1 10 s LL I3 SENS 10073 Cow INTEG R ECTENS m osz BUFFER F TENS c2 a2 AUTO ZERO ACTENS B2 FILTER RA INPUF LOW B TENS ene INPUT Hi C TENS n6 2 COMMON DENS m TOSS REF UNITS REF CAP G UNITS REF LOW F uNmS REF HGH A UNITS Test B UNITS 29 5 ose 7 0 2 to MRI 4 5 501 3 MRE 40 E uo INST MOTOR MAIN Pu STUD 4 PANEL STUD 2 FRAME LOW R2 13x1K RESISTORS SUD 1 5140 3 PLE 2 4 SR MAN 6610 RN 2 14 237 mur Me 22206 PLS 504 2 8 o mus e MRIS an MAY in ul HWZ 1 2 2 SOLENOID 1K BALANCE 22 232. e OPERATION 21 5 OPERATION 5 1 Run Procedure Ensure that the Rotor is correctly loaded and secured and the Timer set at Off Close the lid and press down firmly Press the Power switch on The Power On and the Lid Unlocked indicators will come on Select Timer to Hold for continuous running or to the time required The lid will now be locked Lid Unlocked indicator off Select required speed between 300 rev min and the maximum speed of the rotor in use see section 4 5 by adjusting the Speed control until the required speed is indicated on the Rev min digital display For repeat runs the Speed control need not be moved from the position originally selected 5 2 Stop Procedure To terminate a run in the Hold mode set the Timer switch to off and the rotor will run down smoothly to a stop In the Time mode the centrifuge will run down automatically when the selected time has run out In both modes automatic braking is applied and when the rotor has stopped the Lid unlocked indicator will come on Open the lid the Lid unlocked indicator will go off 5 3 Imbalance 5 4 Should the imbalance indicator lamp come on the centrifuge will run down When the digital panel meter indicates four zero s turn the Power switch and Timer to off and wait thirty seconds then turn the Power switch on The lid unlocked indicator will come on op
3. 26 CONTENTS 6 73 Adjustment Of Balance 27 8 CIRCUIT DESCRIPT ION s asia x ant ek ar ooi bs un 29 MEE i die 29 8 2 c aene 29 8 3 Tacho Circuit oder nacre near lan aa dE du 29 8 4 Speed Indication 30 8 5 Lid Safety uiuis cnin caasa eh orsa tix x iR oca 30 8 6 Bal nce 30 9 ESSENTIAL PARTS LIST aram odii 32 91 Body Assembly 32 9 2 Lid and Associated 32 9 3 Motor Assembly cu aan dn B ac e UR do reed Xa dn a 33 9 4 POB A 33 9 5 PCB D Assembly nei eran ranura o ER 33 96 Instrument Chassis Assembly eese 34 10 PRODUCT DISPOSAL ISO 14001 34 11 HOW TO OBTAIN SERVICE ON YOUR FALCON CENTRIFUGE 35 GENERAL INFORMATION 7
4. pee 33618 16 ___ 340 31 11 i ait 340 200 concai7 M5 i xhem 340 829 77 2 340 2 8 110 p 319 340 2 312 119 iia i xosoim 340 2 9 119 ROTORS AND ACCESSORIES 4 5 3 8 Place Swing out rotor 43121 111 includes buckets and spindle nut Trunnion Adaptor Rotor Max Max Max Tube Size Cushion Capacity Speed RCF tm mm mm 34411 905 3412 01 8 x 15ml 3500 2200 ROTORS AND ACCESSORIES 19 4 5 4 8 Place Angle rotor 34117 603 Cushion Capacity Speed RCF LO em m mm m 8 500 34142 104 8 x 50ml 4600 3120 110 34148 705 8 50ml 4600 3120 110 34411 909 34411 909 34141 115 4600 3120 34144 307 8 15ml 4600 3120 34153 304 4600 3120 34151 301 4600 3120 matre 4600 3120 ROTORS AND ACCESSORIES 20 4 5 5 12 Place Angle rotor 34117 604 0 S 3 35 34411 904 34411 904 Dia mm 34142401 12xim 4600 300 4600 3000 Trunnion Adaptor Rotor Max Max Max Tube Size Cushion Capacity Speed RCF 34411 904 34411 904 34411 904 34146 104 12x 5 or 3ml 4600 3000 34146 103 12 x 2ml 4600 3000 34146 102 12 x 0 5 or 1ml 4600 3000 43161 103 12 15ml 4600 3000 conical 17 344104 34148 01 4600 3000 T
5. E 21 5 1 21 5 2 Stop Procedure Sici bv Ve 21 SE MEM ciclo mec 21 54 Motor Thermal 2 2 444 4 1 nnmnnn 21 5 5 icd 21 5 6 Lid Safely Circuit 22 6 23 UMEN 23 62 Drive 23 6 3 Prevention Of Corrosion Ue Ea 23 6 4 SPRINGS MR 23 6 5 23 6 6 Bisinfeclilig 23 6 7 Inspection Or Renewal Of Motor Brushes 23 6 8 Renewing The FUSE 24 6 9 Removal And Replacement Of Centrifuge Bowl 25 6 10 Lid Friction Adjustment 25 SERVICING e 26 71 Calibration Of Speed Control esee 26 7 2 Removal Of The Motor
6. 1 IMPORTANT INFORMATION The following general instructions and the precautions regarding the prevention of corrosion in rotors and accessories as described under MAINTENANCE must be noted and carefully observed The maximum load should always be checked before commencing any operation the sample has a relative density greater than 1 2 the maximum permissible speed of the rotor should be calculated as given in this publication and applied Any liquid spilt in the centrifuge should be removed immediately because corrosion is a major cause of failure in centrifuges Where particularly corrosive solutions are used the samples should be placed in sealed containers and all necessary precautions observed The following list gives some examples of corrosive liquids used particularly in the biochemical field Phenol cresol water chloroform isoamyl alcohol salt solutions especially ammonium sulphate solutions of ammonium hydroxide and solutions of acids such as hydrochloric trichloroacetic and perchloric acids It should be noted that many other substances used in different fields are often equally corrosive Users should always check whether or not a substance being used is corrosive in order to take suitable precautions NOTE The following materials are prohibited Flammable or explosive materials Materials which chemically interact vigorously The load must be distributed symmetrically round the rotating assembly so that it
7. Instruction Manual For CENTAUR 2 CENTRIFUGE READ BEFORE USE Models 5 020 1 5 MSB020 CX1 1 71100 493 4 Health and Safety at Work MSE UK Ltd is required under the Health and Safety at Work Act 1974 and other UK legislation as designers manufacturers suppliers and importers of articles for use at work to ensure that as far as is reasonably practicable articles which we design produce supply or import are safe and without risk to health We are required to provide information on the safety and handling precautions to be observed when installing operating maintaining and servicing our products Such advice is contained in this manual We are also obliged to update this information should circumstances change and to operate a system to this end We should also like to point out however that you as users have an important responsibility in the provision and maintenance of safe working practices and conditions Accordingly we draw the following matters to your attention 1 This apparatus should only be used as intended and within its design parameters by suitably qualified and trained personnel who have read and understood the relevant sections of this manual This manual should be readily available to such personnel at all times 3 In addition to that which is written in the manual normal common sense safety precautions must be taken at all times to avoid the possibility of accidents Particular care is
8. Specific gravity of sample used ROTORS AND ACCESSORIES 16 4 5 Rotors And Accessories Tables The centrifuge complies with the requirements of BS4402 only when fitted with one of the following rotors Max rev min at 240V or 110V Supplied as standard with buckets Available as spares Haem Haematocrit tube Wass Wasserman glass tube 4 5 1 4 Place Swing out rotor 43124 126 includes spindle nut Cup Adaptor Rotor Max Set of 4 Set of 4 Capacity Speed Sealed Cup 43551 121 34159 302 4 x 100ml 3300 9 5 113 brown 113 43551 121 3 43551 121 34159 301 4 x 50ml 3300 2000 29 DAR 43551 121 34159 304 28 x 15ml 3300 2000 17 110 OIM ee A grey 43551 121 34159 305 36 x 132 mm 3300 2000 13 110 ee 43551 121 34159 306 48 x 12 mm 3300 ws 23 Open Cup 34421 639 3600 ROTORS AND ACCESSORIES 17 4 5 2 4 Place Swing out rotor 34121 607 Trunnion Adaptor Rotor Max Max Max Tube Size Cushion Capacity Speed RCF mansi xii 025 Sealing cap 43561 156 can be used if required nb 21 2 94194605 34142104 4 5 40 39 3 118 34411900 34148705 4 50 401 55 conical 29 112 Sealing cap assy 43561 606 can be used if required 121 30158304 24xHaem 40 3130 7177 120 21 39411301 8xWas 40 39 127 120
9. Actuator 72100 122 13 Anti vibration Mount 73030 001 3 Side Panel left hand 72100 121 14 Motor Brush right hand 72100 120 15 Motor 4 Guard Ring 95500 018 16 Motor Support Bush 71500 055 5 Body Top 96500 012 17 Retaining Ring 96500 015 6 Tacho Box 72020 085 18 Bowl Liner 93600 078 Optical Detector 61080 036 within box 19 Lid Seal 26600 001 7 Balance Detector Adjusting Screw 72200 140 20 Lid Friction Adjust 8 Tacho Disc 72100 115 21 Lid Assembly 9 Control Panel 10 Instrument Chassis Assy 11 Rubber Foot 73050 002 part of body lower welding assembly 96500 050 Figure 6 Partially Exploded View Of Centaur 2 CIRCUIT DESCRIPTION 29 8 CIRCUIT DESCRIPTION 8 1 Power Input A C mains power is fed to the centrifuge via a double pole switch SW1 a 5 Amp fuse FS1 and a filter The Power switch SW1 when switched on is illuminated by a green neon lamp Speed Control The motor current is phase controlled by a series triac MR1 which is triggered by an opto isolator IC1 The L E D of the opto oscillator is driven by a section of the transistor driver IC2 which in turn is fed from two cascaded Schmitt triggers IC4 The input terminal of the first Schmitt trigger is connected to a 68nF capacitor which is discharged to approximately 1 Volt during each mains cross over by IC2 pins 2 15 and 3 14 the Potentiometer RV2 PCB A sets the low end of the speed range and RV2 PCB D set the maximum speed RV4 i
10. is evenly balanced and complies with the manufacturer s instructions in this respect After use the sleeves and adaptors in centrifuge rotors should be removed to allow thorough cleaning of rotors and accessories and so prevent corrosion Special care is necessary when using infective material in centrifuges Containers when used with such materials should be closed while being centrifuged and sterilised immediately after use using non corrosive means NOTE Sealed containers and related components are intended to be part of biosafety systems such as are specified in international and national biosafety guide lines and cannot be relied on as the only means of safeguarding workers and the environment when handling pathogenic micro organisms Care should be taken to preserve intact sets of accessories which have been supplied as sets in which all the members possess closely similar weights It is advisable to have the centrifuge checked by a competent engineer preferably the manufacturer s representative at least every six months Carbon brushes whilst being of the highest quality obtainable are expressly excluded from the guarantee A spare set is included in the accessory pack The method of replacement is detailed in section 6 7 of this manual GENERAL DESCRIPTION 8 2 GENERAL DESCRIPTION The Centaur 2 centrifuge is CE marked in line with required European Directives for Electromagnetic and Low Voltage Compatibility
11. required when working with apparatus at high temperature or pressure 4 Installation maintenance repairs and servicing should only be carried out by a MSE UK Ltd approved engineer and suitably trained personnel should only carry out connection to electrical supplies TECHNICAL SUPPORT WARRANTY SERVICE AND MAINTENANCE UK customers if you are in any doubt whatsoever regarding the correct use of this apparatus or if you require any technical data or assistance please contact the MSE UK Ltd Technical Support Department at MSE UK Ltd Worsley Bridge Road Telephone 444 0 870 609 4097 Lower Sydenham Fax 444 0 208 650 8408 London E mail sales mseuk co uk SE26 5AZ Web Page www mseuk co uk OVERSEAS CUSTOMERS Should contact their local Distributor ELECTRICITY SUPPLIES Voltage and frequency MSE UK Ltd electrical apparatus is offered and labelled in a number of voltage ranges and where necessary different frequencies of mains supply MSE UK Ltd does not accept any responsibility for the operation of any such apparatus should it be connected to electricity supplies which are normally outside or vary outside the stated voltage and frequency values for which it is designed nor for any consequential loss damage or injury howsoever caused MSE UK Ltd Warrant Terms and Conditions We hope that you do not have the need to use the extensive warranty cover that MSE UK Ltd extends to you However should you have a problem our
12. the sides and rear of the centrifuge when placed in the final operating position NOTE Laboratory management procedures should require that no person or any hazardous materials are within a 300mm boundary while the centrifuge is operating 3 2 Connecting To 3 Pin Plug Connect the 3 core cable to a 3 pin plug fitted with a 5 Amp fuse as follows WARNING This equipment must be earthed Brown wire to Live L Terminal Blue wire to Neutral N Terminal Yellow Green wire to Earth E Terminal Connect the centrifuge to the power supply and press the Power switch on The Power On and the Lid Unlocked indicators will come on Push the lid lock actuator to the right and open the lid NOTE BS EN 61010 2 020 Particular Requirements for Centrifuges states that a remote switch preferably adjacent to the room exit is a requirement in case of unit malfunction INSTALLATION 13 3 3 Recommendation For Securing Centrifuge A Fixing Kit for securing the Centaur 2 centrifuge to a suitably sound worktop is for securing centrifuge available from MSE as an optional accessory It consists of an anchor bracket which is secured to the bench or table by two screws with nuts and washers and two screws which screw into the body of the centrifuge to secure it to the bracket See Figure 3 Anchor Bracket Screw M6 x 16 into body of centrifuge Washer Washer M10 Nut M10 Figure 3 Securing Centrifuge to work surfa
13. to the motor until the lid is properly closed It imposes a delay of approximately three and a half minutes in the event of a tacho failure before the Lid Unlocked indicator comes on and the lid can be opened Two micro switches in the lid form part of the lid safety circuit These can be checked for correct operation as follows i Press Power switch on and open the lid The Lid Unlocked indicator lamp should be off Close the lid The Lid Unlocked indicator lamp should come If the lamp does not come on check that the lid is firmly closed as this is the most likely cause of malfunction iii Switch the Timer to Hold or select a Time The Lid Unlocked indicator should off If this does not occur then the Lid Locked microswitch has not operated Again the most likely cause is improper closing of the lid MAINTENANCE 23 6 MAINTENANCE 2 6 2 6 3 6 4 6 5 6 7 DISCONNECT THE CENTRIFUGE FROM THE POWER SUPPLY User maintenance is minimal being confined mainly to cleanliness and care of rotors and accessories Basic equipment maintenance must be carried out by a qualified competent electrician Cleanliness Ensure that the body of the centrifuge is cleaned periodically to maintain a good appearance It is particularly essential to clean out the centrifuge bowl thoroughly especially when corrosive materials have been used A soft cloth dampened in a solution of mild detergent and warm water
14. will serve for both purposes Drive Shaft The centrifuge drive shaft should be cleaned periodically with a solvent to remove excessive grease When clean the shaft should be re lubricated lightly with petroleum jelly Prevention Of Corrosion Simple corrosion can usually be detected by eye and appears in the form of pitting or white fluffy deposits on the surface of aluminium rotors To prevent corrosion take care to avoid scratching the surface of rotors and or accessories After use wash rotors metal buckets cups carriers and adaptors in warm soapy water dry and store inverted in a dry place Rotors should be protected with MSE Rotor Spray Cat No 17341 151 which is an anti corrosion and de waterising agent In addition rotors should be periodically inspected by a responsible person so that corrosion can be detected at the onset Contact MSE UK Ltd Technical Support for further advice on this subject O Rings Ensure O Rings are lightly coated with silicone grease Check O Rings regularly for cuts and abrasions Seals should be replaced as necessary or at least once a year Sterilisation Except for the 8 place swing out rotor Cat No 43121 111 all rotors buckets sealing caps O Rings removed and the bowl may be sterilised by autoclaving at 1206 See section 6 9 for bowl removal procedure If the means available for disinfection of certain microbiological agents are inadequate the safety officer should be consult
15. 02 46060 039 46080 013 42040 012 42030 020 42040 013 42020 024 61080 079 43040 043 42050 004 42020 023 42040 013 8 9 Motor Assembly Description Motor for 220 240V 50 60Hz Motor for 100 120V 50 60Hz Motor Seal Anti vibration Mount Spindle Nut Tacho Disc Optical Tacho PCB Assembly Slotted Optical Switch 8 10 PCB A Assembly Printed Circuit Board A Assembly Opto isolator 4N33 Transistor Driver ULN2004 Quad NOR Gate 4001 Schmitt Trigger 74C14 or 40106 Transistor BC184L 30V 200mA NPN Triac Diode IN4002 Diode Bridge KBPC 104 400V 2A Diode IN4148 Zener Diode BZX61 8 2V 1 3W 8 11 PCB D Assembly Printed Circuit Board D Assembly A to D Converter amp LED Driver 7107 2 digit LED Zener Diode BZV85 5V1 1 3W Diode IN4148 Remarks For rotors 34121 607 34117 603 34117 604 only IC1 2 IC3 4 VT1 VT2 5 7 8 9 10 11 12 13 14 15 16 17 MR6 IC1 MR2 3 9 Product Disposal ISO 14001 Compliance PARTS LIST 34 8 12 Instrument Chassis Assembly Part No Description Remarks 32600 019 Fuse 5A 20mm 32900 037 Fuse Holder 38700 046 Timer Switch 30 min 16A 250V 44050 035 Potentiometer Speed Control RV4 76070 099 Knob 28mm Black 76070 095 Knob 28mm Black 76070 096 Cap 28mm Black Speed Timer Control 76070 097 Pointer 28mm Grey 36040 067 Rocker Switch 240V Power On 36040 068 Rocker Switch 110V 34060 013 Indicator Lamp Red Imbalance 3
16. 4020 087 Indicator Lamp Amber Lid Unlocked 35080 046 Relay RLA 46100 003 Filter 38900 042 Transformer TR1 This product should be treated as industrial waste and disposed of accordingly There are no toxic material used in the manufacture of this product The majority of materials used in this product are recyclable and all can be disposed of safely Where the product has refrigeration it is important that prior to disposal the refrigerant gas is recovered by a qualified person The insulation material is non toxic but could be an irritant If removed from the product it should be bagged and disposed of at an authorised site HOW TO OBTAIN SERVICE 35 10 HOW TO OBTAIN SERVICE ON YOUR CENTRIFUGE MSE UK Ltd is committed to giving our customers the best possible service If your centrifuge should require service at any time please follow these procedures All countries except UK USA and CANADA Contact your local MSE UK Ltd distributor UK only For all technical and service enquires contact MSE UK Ltd Worsley Bridge Road Lower Sydenham London SE26 5AZ Telephone 444 0 870 609 4097 Fax 444 0 208 650 8408 E mail sales mseuk co uk 1 Contact the repairs centre have the model serial number and date of purchase and fault description available 2 You will be given a return goods authorisation number and directions for shipping Remove all rotors buckets and adapters Do not ship these items only the cen
17. Centrifuge BOW 5 sa Calo add Ek EFE 10 2 3 Opening Lid Manually tovc rk oris CERE EE 10 2 4 5 222 5 2552555 10 3 UINSTADLEATIORN 55 2 12 EM Sim 12 3 2 Connecting To 3 Pin Plug 65 50 12 3 3 Recommendation For Securing Centrifuge 13 4 ROTORS AND ACCESSORIES 14 4 Installation Of ROM 14 4 2 Removal 14 4 3 Loading The uoa rmi eti ener kn ie eia vu da culis Do cera dE e Cau Rien ae EE 15 44 o e 15 45 Rotors And Accessories 5 16 4 5 1 4 Place Swing out rotor ete Ed 16 4 5 2 4 Place SWING out rotor pe in tos ERES 17 4 5 3 8 Place Swing out ut uec do ete e ated 18 4 5 4 det MEE 19 4 5 5 12 Place Angle tOlor 20 OP ERATION
18. LAMP NRIS PLB 1 m n e215 PLJA 2 R24 20 12 100R 3 eps Wei ca RIS Eden Tet 470p 1 1 2 PL9 4 10 et 1 16 PL T 17 K2 2 ori Le 9 0 9 00 4 PL9 2 9 13 14 7 BALANCE 12745 24 SWITCH SW 5 Hn bl RI 14 5 d mw y 25 3 mart UMP PLB PL8 3 RA R22 10 Ror 1 5 26 ma 2 e 3K 15 16 1 ERU inst V Ds 2 FIG 7 CIRCUIT DIAGRAM TANT ns 7 R21 5 R10 AK 154 o X T 1 w 8 4 PARTS LIST 8 7 Body Assembly Part No 93600 078 26600 001 71500 055 96500 015 73050 002 96500 225 72100 121 72100 120 88120 040 72900 045 72900 046 72100 122 88120 039 72900 048 36020 028 36020 027 60800 001 72900 047 72900 042 ESSENTIAL PARTS LIST Description Remarks Bowl Liner Bowl Seal Motor Support Bush Retaining Ring Rubber Foot Black Plug Button Left hand Side Panel Right hand Side Panel Lid Stop 8 8 Lid and Associated Assembly Left hand Torsion Spring Right hand Torsion Spring Lid Handle Catch Pin Catch Spring Micro Switch Lid Closed SW2 Micro Switch Lid Lock SW3 Solenoid Lid Lock Solenoid Spring Lid Lock Spring Lid Lock PARTS LIST Part No 34400 159 34400 160 78070 013 73030 001 82120 143 72100 115 61080 036 42050 003 61080 043 43040 042 43040 029 43030 003 43030 0
19. MSE UK Ltd be liable for any consequential or incidental damages including but not limited to loss of profit or revenues loss of use of the equipment or any associated equipment down time costs costs of substitute equipment costs of labour costs due to delays or claims of purchaser s own customers for such damages The purchaser agrees to indemnify MSE Ltd and to hold them harmless from any and all liability claims demands actions suits expenses or costs including attorney s fees relating to such consequential or incidental damages All expressed and implied warranties including the warranties of merchantable quality and fitness for a particular purpose are limited to the application period of one year Validity Legal rights vary from country to country and states within countries so some or all of the exclusions or limitations listed above may not apply but if any part of these conditions shall be found to be unenforceable it shall not affect the validity or enforceability of the remainder of the conditions ELECTRICITY SUPPLY Before connecting this apparatus to the electricity supply check the information given on the apparatus rating plate and ensure that A Your supply is single phase A C alternating current of the stated frequency with neutral nominally at earth potential B Your supply voltage is within the stated range C The current rating is within the capacity of your outlet D Your plug or electricity supply
20. UIT DESCRIPTION 30 8 4 Speed Indication The output of VT1 is fed via a Schmitt trigger to a monostable circuit 103 pins 4 5 6 8 9 and 10 The pulse width is fixed by a time constant of 22 nf and a 50k variable resistor RV1 The output pulses are fed to the digital display unit PCB D where they are integrated to give a D C voltage proportional to speed The digital display unit consists of a 7107 analogue to digital converter driver and its associated components driving two LED s The two most significant digits are driven by the 7107 to indicate the speed The two least significant digits are connected through twelve 1k resistors RN1 to give a fixed 00 display 8 5 Lid Safety Circuit When the Timer switch is made contact SW4 2 applies a voltage to charge up C8 This sets one input of the NOR gate 103 pins 11 to 13 to 1 thus de energising the Lid Solenoid and locking the lid When the Timer switches to Off the charging current to C8 ceases but the discharge time constant is long enough to delay the energising of the solenoid for about three and a half minutes This ensures that the lid cannot be opened before the rotor has stopped To allow the lid to be opened as soon as the rotor stops the circuit comprising 1 4 pins 1 2 3 4 5 and 6 IC3 pins 1 2 and 3 together with VT2 monitors that the run down is normal and if so discharges the capacitor C8 The method employed uses the outputs of two freque
21. ad out of the rotational speed of the rotor rounded off to the nearest hundred rev min e g 2500 3200 5 The Speed control allows selection of any speed between 300 rev min and the maximum allowed for the rotor in use see section 4 5 Rotors And Accessories Tables as indicated on the Rev min digital display 6 The Imbalance indicator lamp Red when on gives warning that the rotor is misloaded to a marked degree In this event drive to the rotor will cease and the rotor will run down to a stop Loading and balance must be checked and corrected before re starting the centrifuge 7 The Lid Unlocked indicator lamp Amber when on indicates that the rotor is at a standstill and the lid may be opened safely When the rotor is spinning the lamp remains off and the lid is locked GENERAL DESCRIPTION 10 2 2 2 4 Centrifuge Bowl The centrifuge bowl is easily removable for cleaning or disinfection purposes see section 6 Maintenance Opening Lid Manually An electrical interlock prevents the lid being opened while the rotor is turning or when the power is disconnected If access to the rotor is required during a power failure insert the Lid Lock Release Key supplied with accessories to its fullest extent into the small hole on the top of the lid near the front move the point towards the rear against a slight spring pressure to actuate the lid lock mechanism Press the lid actuator to the right and open the lid The li
22. ce using Bench fixing Kit Part No 41159 188 If the restraint kit is not used to secure the centrifuge on the bench then it is the recommendation of BS EN61010 2 020 that a clearance of 300mm is allowed around the base of the centrifuge when in the final operating position NOTE Laboratory management procedures should require that no person or any hazardous materials are within a 300mm boundary while the centrifuge is operating 12224 ar Figure 3a Recommended Clearances Note 75mm if solid surface i e wall otherwise 300mm ROTORS AND ACCESSORIES 14 4 ROTORS AND ACCESSORIES 4 1 Installation Of Rotor Before fitting a rotor to the centrifuge ensure that the drive shaft is lightly smeared with petroleum jelly Check that the rotor is clean particularly pockets in angle rotors Locate the rotor on the drive shaft and ensuring that the correct spindle nut for the rotor in use is employed see sections 0 amp 4 5 engage and tighten the spindle nut finger tight 4 2 Removal Of Rotor Press Power switch off Open the centrifuge lid Remove all rotor accessories i e buckets trunnions etc Loosen the spindle nut a few turns grip the rotor as illustrated in Figure 4 and pull upwards with the fingers whilst gently rocking the rotor and applying downward pressure with the thumbs to release it from the drive shaft Remove the n
23. circuit is fitted with a suitable fuse 220v 240v 110v 120v Fuse rating 5 amp see note for 110V 120V WARNING This apparatus must be earthed The wires in the mains lead are coloured in accordance with the following code 220v 240v 110v 120v Live Brown Black Neutral Blue White Earth Green and Yellow Green Connect the wires to a non reversible 3 pin plug as follows Green and Yellow or Green to terminal marked E Earth G Ground coloured Green or Green and Yellow or marked with the Earth symbol Blue or White wires to terminal marked N Neutral or Common or coloured Blue Brown or Black wires to terminal marked L Live or Phase or coloured Brown Note 110v 120v installations to comply with National and State Wiring Codes IMPORTANT Consult an electrician if in any doubt or if your supply system has any of the following No earth A coloured code different from the above Reversible plugs Supply and return leads that are both above earth potential NOTE Do not touch plug pins within two seconds of plug removal from socket CONTENTS 5 1 IMPORTANT turn eii nanus au aa 7 2 GENERAL DESCRIPTION 2502220 CERIS 8 2 1 Controls And Indicators coeno eter dtes thin ec ue exa nos ne EE uana SERE kane een CREAR 9 2 2
24. ction 4 on the drive shaft close the lid and set the speed control and RV2 PCB D fully anti clockwise set RV3 A fully clockwise Switch on turn the timer to Hold and check that the rotor rotates slowly and the centrifuge display indicates 100 rpm if necessary adjust RV2 PCB A min speed set to achieve this condition Set the speed control fully clockwise adjust RV1 PCB A until the frequency meter reading matches half 1 2 that of the centrifuge display reading adjustment clockwise will increase the display reading whilst decreasing the meter reading and vice versa for anti clockwise Adjust RV2 PCB D max speed set so that the centrifuge runs at the highest speed indicated on both the centrifuge and frequency meter displays 7 2 Removal Of The Motor Ensure that there is no rotor on the drive shaft With the centrifuge turned on to its back and the instrument chassis removed section 6 7 remove the remaining screws around the edges of the base plate Making a note of terminations and connections for reference disconnect plugs and wires and remove the base plate with motor The upper part of the motor is partially secured by the rubber support disc in the body and can be pulled out Remove the three nuts and spring washers which secure the three rubber mounts to the base plate Remove the motor assembly from the base plate Remove the two hexagon screws washers and spacers note arrangement an
25. d remove the optical detector printed circuit board Remove the screw in the lower end of the motor and carefully remove the plastic tacho disc The motor can now be detached from the tacho box by removing the three small screws around the centre of the tacho box Carefully note location and position of the motor support bush around the body of the motor before removal Remove the motor support bush and fit it to the new motor as noted before re assembly Re assembly of the motor to the tacho box and base plate is a reversal of removal procedures Ensure that the tacho disc is centred within the slot of the optical detector Ensure also that the three rubber mounts are not twisted during re assembly Adjust balance detector as described in section 7 3 SERVICING 27 7 3 Adjustment Of Balance Detector With the centrifuge upright and after operation with a loaded rotor for a few minutes to allow the motor to settle in its operating position insert a 1mm thick gauge between the microswitch actuator and the side of the tacho box Item 6 Figure 6 By turning the Balance detector adjusting screw Item 7 Figure 6 adjust the microswitch towards the side of the tacho box until the microswitch just operates breaks Ensure that the microswitch operates re makes when the gauge is removed N SERVICING XS X9 12 PCB A Assy 61080 043 1 Hole Lid Lock Trip 2
26. d is friction controlled to remain open at any intermediate position desired Figure 2 Manual Over ride of Lid Lock Specifications Dimensions Height 336mm with lid open 470mm Width 436mm Depth 487mm Weight 36kg without rotor Power Supply Input voltage and frequency Cat No MSB020 CX1 5 220 240V 50 60 Hz Cat No MSB020 CX1 1 110 120V 50 60 Hz Operating Humidity 80 up to 31 C decreasing linearly to 50 RH at 40 C Altitude Up to 2000M NOTE Motor as fitted contains overtemperature cut out device GENERAL DESCRIPTION Accessories Supplied With The Centrifuge Part No Description Quantity 32600 019 Fuse 5A 20mm 76600 004 Lid Lock Release Key 88110 024 Lid Seal Insertion Tool 71100 493 Operating Manual 71100 958 Guarantee Card 240V 71100 1052 Guarantee Card 120V 82120 143 Spindle Nut for Rotors 34121 607 34117 603 34117 604 on L l cla y INSTALLATION 12 3 INSTALLATION IMPORTANT The rotor must not be fitted when moving or during transit 3 1 Preparation Remove the centrifuge from its packing and place it on a rigid level surface Check that the available power supply corresponds to that stated on the voltage plate fixed to the rear panel of the centrifuge NOTE i An electrical interlock prevents the lid being opened unless the centrifuge is connected to the power supply It is important that at least 100mm clearance is allowed at
27. ed and appropriate steps taken Disinfecting The following cleaning fluids may be used TERMINEX 2 Available from Arrow Chemicals Ltd VIRKON Available from Antec International These cleaning agents if used as instructed by the manufacturer should not be harmful to this product or accessories supplied for use with this product WARNING SOLVENTS OR GRITTY CLEANERS SHOULD NEVER BE USED EXCESSIVE USE OF WATER SHOULD ALSO BE AVOIDED Inspection Or Renewal Of Motor Brushes MAINTENANCE 24 The motor brushes should last for a minimum of 1000 hours of operation To renew brushes proceed as follows Open the lid and remove the rotor close the lid and disconnect the centrifuge from the power supply Turn the centrifuge on to its back Unscrew and remove the two screws securing the front rubber feet and the other two screws that locate and secure the instrument chassis to the base frame Place corrugated cardboard or other protection on the upper part of the centrifuge then withdraw and lay the chassis on top Removing The Brushes Unscrew the brush retaining cap The brush is held within a carrier against a tensator roll spring If the carrier does not spring free on removal of the cap a thin stiff wire hooked at one end may be used to assist Do not use force Gently press the arms of the carrier together and withdraw the brush On withdrawal note the position of the roll spring in the carrier in relation to the brush and mot
28. en the lid check the balance of the rotor close the lid and restart the run Motor Thermal Cut out The motor is fitted with a self re setting thermal cut out to protect the motor from over heating If the thermal cut out has operated during a run the rotor will stop and 0000 will be displayed The centrifuge will return to normal operation once the motor has cooled IMPORTANT ENSURE THAT THE VENTILATION SLOTS AT THE BACK ARE NOT OBSTRUCTED IN ANY WAY Power Failure If the mains power to the centrifuge is interrupted during a run the rotor will coast down to a stop and the lid will remain locked Turn the Timer control to off When the power is restored re start the run as normal If it is required to gain access to the rotor during the power failure use the Lid Lock Release Key see section 2 3 If power failure occurs and the centrifuge is left unattended subsequent restoration of power will cause the centrifuge if in the Hold mode to run up to the originally selected speed If in the Time mode the centrifuge will run up to speed and continue for the time left on the Timer If the selected time runs out during the power failure the lid will remain locked for an inherent delay period of approximately 31 2 minutes from the time of power failure even if the power is restored within this period OPERATION 22 5 6 Lid Safety Circuit The Lid Safety Circuit has a dual function i It prevents power being switched
29. ncy discriminators IC4 pins 5 and 6 directly and IC4 pins 1 2 3 and 4 after a delay as inputs to a NOR gate If the 60 rev min discriminator operates sufficiently in advance of the 6 rev min circuit then a pulse is generated by the NOR gate which switches on VT2 to discharge the capacitor Under failure conditions no pulse will be generated and the lid will remain locked for about three and a half minutes 8 6 Balance Circuit IC2 pins 4 13 and 5 12 form a bi stable circuit which is forced into the required stable state at switch on by the capacitor C5 In this stable state pin 13 is near earth so that Relay A can be energised and pin 12 is high so that the balance lamp is off If the rotor is unbalanced sufficiently to cause the Balance microswitch to open momentarily the bi stable circuit will switch over to its other stable state 2 pin 13 will then be high de energising the relay Pin 12 will be low switching the Balance lamp LP2 on and removing the charging current to C8 so that the lid is unlocked after about three and a half minutes The bi stable can be reset by switching the mains supply off for a few seconds and then on again CIRCUIT DESCRIPTION 31
30. or as the new brush must be fitted in the same manner It will be seen that a small pin fitted near the rear end of the brush locates in a guide slot along one arm of the carrier Note that the free end tongue of the roll spring is held near the end of one arm of the carrier facing in the direction of fitting Fitting New Brushes Locate the new brush in the carrier with the pin located in the slot and the brush pushed fully into the carrier against the tension of the roll spring Hold the assembly together with the roll spring in the same relationship to brush and motor as when the old brush was removed and insert the front end into the brush housing of the motor Take care to ensure that the tongue of the roll spring lies facing forward flat with the carrier if not gently press it down with a small screwdriver before pushing the assembly home into the brush housing Note If the tongue is bent backwards against the carrier upon insertion it may break off and the spring will be ineffective Check that the carrier moves freely in and out against the tension of the spring Refit the brush retaining cap and tighten finger tight Replace and secure the instrument chassis and the rubber feet and turn the centrifuge the right way up Run the centrifuge with an unloaded rotor on the drive shaft to a speed of 1000 rev min for half an hour to bed in the brushes 6 8 Renewing The Fuse To renew the fuse disconnect the centrifuge from the power
31. osition Insert the lid seal tool Figure 5 between the seal and the lip of the bowl and ease the seal over the lip of the bowl while applying downward pressure on the bowl centre boss Work the tool round the rim of the bowl gently easing the seal over the bowl Exert further downward pressure on the boss to locate the bowl rim in the recess of the seal Lid Seal Bowl Vent Figure 5 Use of lid seal tool 6 10 Lid Friction Adjustment If the lid friction collar needs adjustment e g because lid falls slowly downwards turn the socket screw which is visible through the small hole located centrally near the lower edge of the inside of the lid using a 4mm socket wrench Turning clockwise will tighten and anti clockwise will loosen friction resistance on the lid See Figure 6 upper inset annotation 20 SERVICING 26 7 SERVICING N This section has been included for the guidance of competent service engineers only preferably those trained by MSE UK Ltd Calibration Of Speed Control Disconnect the centrifuge from the power supply Remove the instrument chassis see section 6 7 for removal instructions Refit the two rubber feet temporarily and set the centrifuge upright with the instrument panel at the front Connect 2 frequency metre to test points TP1 ground and TP2 signal at the right hand side of the circuit board Place a correctly assembled and balanced rotor see se
32. prompt response is greatly helped if you have filled in and posted the pre paid Warranty Registration Card supplied with your new equipment This entitles you to a one year warranty from the date of delivery During this period component parts proven to be defective in materials or workmanship will be repaired or replaced at our expense Installation commissioning and calibration are not covered by this warranty agreement The MSE approved service agent must be contacted for warranty determination and direction prior to any work being carried out These warranties are only applicable to new products and not second hand nor refurbished products even if repaired by MSE UK Ltd Any such products are covered by separate warranty terms and conditions which will be made available on request Replacement or repair of component parts or equipment under this warranty shall not extend the warranty to either the equipment or the component part beyond the original one year warranty period unless agreed in writing by MSE UK Ltd The above warranties are extended to the original purchaser upon full invoice payment A purchase receipt or other proof of purchase may be required before warranty service will be performed These warranties only cover failures due to defective workmanship which occur during the normal operation of the product by the original purchaser and not failures which result from accident misuse abuse neglect mishandling misapplication al
33. s for speed control The pulse width generated by this circuit is linearly proportional to the speed control resistance There is however some non linearity in the speed versus speed control angle characteristic because the pulse is used to chop a sine wave in order to vary the speed The feedback network R18 MR10 discharges the capacitor to give a narrow trigger pulse thus reducing the power requirement on the 12 Volt supply to IC1 Voltage is fed to the speed control network via the Lid Closed and the Lid Locked micro switches SW2 and SW3 and one contact of the Timer switch SW4 1 so that the motor is driven only when the lid is closed and locked and the Timer is set to Hold or a time is selected The voltage is stabilised at about 9 Volts by R17 MR7 and the 8 2 Volts supply Relay A is also fed through the two micro switches and the Timer switch contact When Relay A is energised the motor field and armature are connected in series with each other and the triac MR1 across the 240 Volts mains input With Relay released which occurs when the Timer switches off the armature is short circuited and a D C voltage is applied to the field This applies a braking force to the motor Tacho Circuit The tacho input is taken from an opto electronic chopper unit which gives an output of 7977 Min Hz This input switches VT1 which provides a fixed voltage 28V 2 square wave to the Speed Indication and Lid Safety Circuits CIRC
34. see Declaration of Conformity for EC Directive standard used 120v units designed for CSA approval to the following standards CAN CSA C22 2 No 1010 1 92 CAN CSA C22 2 No 1010 2 020 94 INDEPENDENT SPEED SENSING 120 volt Machines only To comply with certain USA standards the 120 volt machines are fitted with a small window in the cover This permits independent speed check directly from the rotor with use of an optically coupled tachometer GENERAL DESCRIPTION 9 2 1 Controls And Indicators 2 lt gt 9 u gt 572 Figure 1 Control Panel of the Centaur 2 Centrifuge 1 The Power On rocker switch when on switch illuminated connects power through to various circuits and components within the centrifuge 2 The Fuse Holder carries a 20mm long 5 Amp glass cartridge fuse It is easily removable 3 The Timer control allows a run period up to 30 minutes selected by turning the knob clockwise When the time selected has run out the rotor will automatically run down to a stop If required the knob may be returned anti clockwise to a lesser time or to the Off position at will It cannot be turned anti clockwise between the Hold and 30 positions The Hold position switches the centrifuge for continuous running until manually reset to Off 4 The Rev min indicator is a digital display giving continuous re
35. supply at the mains plug Unscrew the fuse holder cap and remove the fuse Inspect and replace as necessary with the correct rating For 220V 240V model the plug fuse may also need to be checked Fit the new fuse and refit the holder back into the receptacle If the fuse blows again during use contact the local distributor or MSE UK Ltd NB If the fuse blows immediately or blows again during normal use the power supply should be disconnected and the service engineer called MAINTENANCE 25 6 9 Removal And Replacement Of Centrifuge Bowl To remove the bowl for cleaning or disinfection purposes proceed as follows Open the lid disconnect the centrifuge from the power supply and remove the rotor if fitted Peel back the lip of the seal above the bowl vent inside the bowl at right note position of the vent then lift the bowl by the vent hole above the seal at this point Now lift the bowl by the centre boss and work the seal lip away from around the entire circumference of the bowl To refit the bowl Bend the lip of the seal to point upwards at any convenient position Lower the base of the bowl on to the seal and work the seal around the side of the bowl so that the whole seal edge is pointing upwards and embracing the lower part of the bowl Lower the bowl applying slight downward pressure with a twisting motion and ease downwards until the seal lip is just under the bowl rim with the vent in the bowl in original noted p
36. teration faulty installation electrical power fluctuations dust or other environmental extremes modification or service other than by an approved service agent or following the written authority of the manufacturer or damage that is attributable to acts of God Expendable items such as motor brushes door seals lid seals O rings or lamps are excluded MSE UK Ltd or its approved service agent reserves the right to repair defective equipment on the premises of the customer or at a service station at the sole discretion of MSE UK Ltd or their approved agent In the event of return to an approved service centre the customer is responsible for the safe packaging of the instrument and notification to the service centre Neither MSE UK Ltd nor its agents are responsible for any damage occurring during shipment Specification and Material Changes MSE UK Ltd reserves the right to supply our latest and improved models at time of shipment Taxes The prices quoted do not include any taxes imposed by the State or Country in which the purchase was made Installation Installation of all equipment shall be at the expense of the purchaser unless stated otherwise Access to the site and the provision of required utilities e g Power water and drainage to suitable connections will be the responsibility of the purchaser and at the purchaser s expense Limitation of liability In no event whether as a result of breach of contract or warranty shall
37. trifuge Thoroughly clean and disinfect the centrifuge 3 4 5 Fill out the attached service request form and place inside the centrifuge 6 Pack in a protective box preferably that in which the centrifuge was originally supplied 7 MSE UK Ltd will specify the carrier to be used and will give details of how the freight is to be charged SERVICE REQUEST FORM Should it become necessary to have your MSE centrifuge repaired please take a few moments to fill out this form which will help us to ensure you receive the best and fastest service possible Mode _ Se al number lt on plate at back of unit Date purchased Where purchased Brief description of fault Date fault first 2 22222200 nennen nnns Date repair centre contacted Authorisation number 8 rr I E Has it been disinfected Yes No Disinfectant Used Gontactname lt Address eren Telephone Number ee DN
38. ut and lift the rotor free Note Do not attempt to loosen the rotor by tapping on the centrifuge motor spindle Figure 4 Removing Rotor from Drive Shaft ROTORS AND ACCESSORIES 15 4 3 Loading The Rotor The rotors must carry a full complement of cups buckets and or trunnion rings but all cups buckets need not be loaded Loads must be placed symmetrically about the rotor and opposing loads should balance to within 2 grams Where possible balancing by sight is usually sufficient Before loading centrifuge tubes ensure that the appropriate colour coded adapter or rubber cushion is correctly positioned in the cup bucket Check that all tubes project equally from the upper surface of the rotor Finally if using a swing out rotor check that all cups of trunnion rings swing freely If necessary apply a light smear of petroleum jelly to the rotor pivot slots Failure to load the rotor correctly can result in serious imbalance and possible damage to the centrifuge Biologically hazardous material should only be centrifuged in sealed buckets or cups Rotor Speed Maximum Speeds of rotors See section 4 5 are calculated on the basis of tubes filled with a sample of specific gravity 1 2 If liquids of higher specific gravity are used the maximum speed of the rotor must be reduced according to the formula 2 1 2 x RPM S Where M New maximum speed N Maximum rotor speed at 1 2 specific gravity 5
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