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Service Manual for High Speed Centrifuge Z 32 HK

1. sss 15 7 3 1 6 SUBMENU CTO MEMO rr E cmm 15 1 3 1 7 Submenu Setup of temperature for refrigerated units only 16 7 3 1 8 Submenu Setup of the loudspeaker nn 17 7 3 1 9 Submenu Setup of the keypad tone ir 18 7 3 1 10 Submenu Setup volume of the loudspeaker l I nn nsaara 19 1 3 1 11 Submenu Setup of the signal melody l I n nas 20 7 3 1 12 Submenu Check and calibration of the imbalance sensor Movement sensor Setup of the signal melody 21 7 3 1 13 Submenu Indication of the imbalance value of the rotor 22 7 3 1 14 SUpmehu RACE OA LES CRE 23 19 1015 Submenu Indication of the revision number of the control panel Check of the external imbalance sensor 23 7 3 2 Activation of the Service menu Part2 inner 24 7 3 2 1 Submenu Adjustment of the centrifuge type 24 1 3 2 2 Submenu Adjustment of the operation mode cccccescecssssssssssssssssecsesessessessesssseseseeseeseeseesaeeasees 25 Hermle Labortechnik GmbH SA Z32HK eng V1 14 CONTENT e 7 3 2 3 Submenu Adjustment Correction of the imbalance Cut off value l a 25 7 3 2 4 Submenu Activating Deactivating of the electronical Imbalance a 27 7 4 Mountig SIpBB0ILL III l l EUR TEETAR SAE ete ar 20 74 1 Replacing the front housing the potentiometer and the display 28 7 4 2 Replacing the potentiometer iii 29 D ME Cie a un 29 7 4 4 Replacing
2. C I C CO N O1 o mw N C Co D I C Co N jon A j IN IO C IN o NO IN CO I o c o o Be IN gt A o A oO o o Io A A IN J oO o o Io 00 IN I A C o O A A o a e p eS ee Des e Ie j er o ai oc N 0 IN IN oa JS gt gt qe gt EE gt gt A jon lo o c IN gt gt IE o G Co G l 3533555353 c c I C NO C1 NO O0 C I 5 I gt I 12 S S BR jor jon l gt o Jo gt Oo loa IN a 00 IN oo o C Cn l laoa Level 0 IN Qa I The acceleration and deceleration times may have slight fluctuations that depend on the unit and are therefore guidelines only Hermle Labortechnik GmbH SA Z32HK eng V1 14 TECHNICAL DATA 6 2 Decelertaion times Z 32 HK 120 V 230 V in min sec Rotor Number 3 32 Table 2 Deceleration times 5 Cc a I gt J IN CO N O o Level 2 ow oo IA aAa IN O c O C j gt c Q2 Ion N Iaoa o Cn IN Level 3 N A I cC gt O j gt c N IR Io lo IN Level 4 I N lo 4 N o I gt O c EO c Cc a c N oo l lo BW IN Level 5 A O o loa IN o CO EO cC C a c N oo l lo l o
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4. I9 1ZI9N sso uosiexoeri R 31 Jg Le c 1 co TD 00 SH ces GC9060 I y Li 4 Figure 73 Control board Hermle Labortechnik GmbH speed sensor HERMLE D CIRCUIT DIAGRAMS L ABOR ECHNIK i m antenna rotor sensor imbalance vibration movement sensor reserve input temperature sensor frequency converter signals s Hermle L abortechnik O Ls tu o SED 020 ffront panel D sn n power board input QUILLUn 10SU auis r from left to right 5 Volt yellow GND brown GND brown 24 Volt red L fter Geh Vacuum system onda ebay A 1eq Nj usi COM Port Unwucht Ausg L fte QD egat K hla Netzteil Netz Umrichter Ah 4h frequency converter power main power in power board output reserve for magnetic lid lock fan for the housing Service Manual Z 32 HK 53 11 Spare part list ARTICLE Order No Controller board 941 002 LCD module 941 005 Rotary knob with PCB for front bonnet 941 006 Membrane keyboard cooled 914 007 Frequency converter 230 V 914 008 Power board 230 120 V retrofit kit Motor 230 120 V Signaling transmitter Micro switch for lid lock Lid for poti 944 012 Thermical circuit breaker main switch 120 V 944 013 Temperature sensor 944 036 Fan 230 V 944 037 Fan 120 V 944 038 Power cord 120 V 944 039 Hermle Labortechnik GmbH Servic
5. MS hms M7 accel M14 temperature Hermle Labortechnik GmbH Service Manual 32 HK 6 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 24 Control panel The control panel consists of one LCD display one potentiometer 1 the upper front housing and the foil keyboard These parts can be exchanged separate The potentiometer 1 regulates all parameters which are adjustable by pressing a key and which are indicated in the LCD display Inside the speed display of the control panel the error message is indicated if there occur any troubles Figure 4 Control panel 1 potentiometer run parameters 3 LCD control panel display 4 rpm rcf speed g force 5 accel decel acceleration Deceleration intensity 6 time centrifugation time T lid lid release 8 quick short running 9 start start centrifugation 10 stop stop centrifugation 11 prog calling stored programs 12 store program store 13 temp temperature store Hermle Labortechnik GmbH Service Manual Z 32 HK 7 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIt 7 25 Frequency converter The frequency converter generates the drive signals for the asynchronous motor The converter leads the current generated by the motor during deceleration to a heating resistor to reduce the current The frequency converter is connected with the power board by a serial interface There is a green LED on the converter which flashes when the frequency converter is working correctly A
6. cable break plug is loose between control unit to frequency converter control unit is defective From control revision no 2 it may also be the power supply or the four pole connection cable to the defective control unit Imbalance switch has been activated Imbalance switch incorrectly adjusted for longer than 5 seconds imbalance switch is defective cable break plug is loose between control unit to frequency converter control unit is defective Transponder in the rotor is defective or The transponder in the rotor disk has a fault in incorrect missing data in the in the rotor memory It can also be an error in the memory database of the microcontroller plug is loose between control unit to frequency converter control unit is defective Chamber over temperature Relay on the controller is defective cooling is defective heating is defective ventilation is defective Problem with the speed sensor Lid is Rotary encoder circuit board is defective cable closed for a certain time The blocking break plug is loosen between control unit to time is shown in the display and frequency converter motor is blocked control replaced with CLOSE Lid From unit is defective frequency converter is 10 06 09 Version 1 33 defective Open lid while rotor is running Lid has been opened during rotating with the emergency release control switch of the lid lock is defective cable break plug is loosen between control unit
7. 6 Replacing the lid gasket Remove the lower covering of the front housing and remove the screws of the housing as described in chapter 7 4 1 and 7 4 5 Open the lid as wide as possible Pull the housing slightly upwards until the lid gasket is freely accessible Now remove the old lid gasket ATTENTION The lid gasket is glued at some points in case you want to reuse the same gasket you have to loosen the glued points carefully to avoid any damage Reassemble the unit in reverse order Take care that the fixing ends are at the back part of the chamber Start the mounting always with this glued ends You can use a small Allan key Push it between sealing and rotor chamber see figure 49 Pull the sealing in a circular movement towards the chambers centre see chapter 7 4 5 f replacing the lid gasket of an elderly unit please make sure that the cutting of the chamber sealing which is responsible for air ducting is not covered 7 4 7 Removing the lid Open the lid as wide as possible Hermle Labortechnik GmbH Service Manual Z 32 HK 31 HERMLE SERVICE INSTRUCTIONS Cason Tecnu Remove the back wall plate as described in chapter 7 4 5 Hold the lid with one hand and remove the fixing screws of the hinges The lid can now be removed completely Figure 50 7 4 8 Replacing the hinges Remove the lid as described in chapter 7 4 7 Laythe lid with the upper side down on a smooth under pac
8. 7 3 1 Activate the service menu as described in chapter 7 3 2 Turn the potentiometer 1 until the special digit service C appears in the display acc dec A 2 Do not confuse with c Submenu Setup of the temperature Figure 38 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective option with the potentiometer 1 As we have already mentioned in the beginning this letters will appear when you switch on the unit during the normal operation see chapter 7 3 1 7 3 2 3 Submenu Adjustment Correction of the imbalance cut off value From software version 1 60 you can adjust or correct the imbalance cut off value In the factory has been setup an imbalance cut off value With this settled value the unit should run through Through the transport or the setup of the unit it may occur that this value will react unlike In case the unit does already cut off at the adjusted value you can increase this value by adjusting this value gt 0 In case the unit does not cut off until you can decrease this value by adjusting this value 0 The suitable value must be settled by service personnel only After the correction there is another check indispensable You have to make several tests Hermle Labortechnik GmbH Service Manual Z 32 HK 25 HERMLE SERVICE INSTRUCTIONS Cason Tronne Activate the operation menu as described under 7 3 1 Activation of the
9. If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Figure 29 Hermle Labortechnik GmbH Service Manual 32 HK 20 HERMLE SERVICE INSTRUCTIONS Lason Tecra e 7 3 1 12 Submenu Check and calibration of the imbalance sensor Movement sensor Setup of the signal melody Here you can check or re calibrate the imbalance sensor Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service F appears in the display acc dec A 2 rpm rcf Figure 30 From software 1 59 the bottom line indicates the real current value The value can be between 105 125 or 62 74 because of the different movement sensors The upper value should be C 115 2 or at C 0 2 liegen At software versions under 1 59 you have to calibrate the movement sensor by pressing the key fmre This have to be done if the difference is too large By that the upper line will also indicate C 115 2 or C 0 2 if the calibration was successful Attention This setup should be done by service personnel only During the calibration the unit should be placed at a flat table and shouldn t be moved If the word Error appears in the display the imbalance sensor is defective and you have to replace the whole rotary encoder board mounted on the below side of the motor Figure 31 Attention In c
10. Service mode By pressing the key accel decel 5 you will get to the submenus Now in the display acc dec A 2 the word service M12 will flash Only as long as this word is flashing you can scroll through the further submenus with the potentiometer 1 You have to repeat this step continously to enter the different submenus Hermle Labortechnik GmbH Service Manual 32 HK 12 HERMLE SERVICE INSTRUCTIONS Lason Tecra e 7 3 1 1 Submenu Motor starts Here you can read off the number of motor starts Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service A appears in the display acc dec A 2 see figure 13 Figure 14 In the display rpm rcf A 1 the number of motor starts is indicated now 7 3 1 2 Submenu Duty cycle Here you can read off the duty cycle of the unit Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service H appears in the display acc dec A 2 Figure 15 Inside the display rpm rcf A 1 now the duty cycle is indicated Hermle Labortechnik GmbH Service Manual Z 32 HK 13 HERMLE SERVICE INSTRUCTIONS Cason Tecnu 7 3 1 3 Submenu running time of the motor Here you can read off the operating hours of the motor Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digi
11. defect of the converter will be indicated in the TIME display as an error no See chapter 8 ai ur al EJ mug m 2 Figure 5 Frequency converter 7 2 6 Rotor recognition The centrifuge will recognize the inputted rotor through the rotor identification transponder and the aerial belonging to it right after the insert automatically As soon as the lid is closed the rotor number will be indicated in the speed display see figure 3 Areal Transponder Figure 6 Aerial Figure 7 Below side of the rotor Hermle Labortechnik GmbH Service Manual 32 HK 8 HERMLE D SERVICE INSTRUCTIONS LABORT ECHNIK 7 2 7 Over speed protection If the pre selected rpm is higher as the permitted rpm of the rotor the speed indication in the display will be regulated to the max speed permitted for this rotor after the rotor recognition The regulation will accelerate the rotor only to the permitted rpm of the rotor Figure 8 Over speed protection 7 2 8 Speed signal The actual speed is extracted by a hall effect sensor placed on the lower side of the motor There is a preset actual comparison in the control board Thereupon a new preset signal is given by the control board to the converter see figure 8 7 2 9 Lid contact The micro switch in the mechanism of the lid lock controls the correct closing of the centrifuge lid The switch may never be bypassed The lid lock is unlatche
12. front housing as described in chapter 7 4 1 Remove all electrical connections on the control panel 1 see figure 61 Figure 61 Go with a flat sharp item knife or screwdriver under the signal transmitter and lift it up with slight efforts Fix the new signal transmitter with double sided adhesive tape and reassemble the unit in reverse order Hermle Labortechnik GmbH Service Manual Z 32 HK 39 HERMLE o SERVICE INSTRUCTIONS LABOR ECHNIK 7 4 17 Replacing the lid lock Remove the covering of the front housing as described in chapter 7 4 1 Remove the electrical supply on the control board 1 see figure 62 Figure 62 Remove the two fixing screws of the lid lock and put in the new lid lock Keep attention through adjustment of the lid lock that the lid lies straight and continuous on the lid sealing After adjustment tighten the screws well Adjustment 1 Lay the lid onto the centrifuges seal Afterwards tighten the screws of the hinges under a little pressure onto the lid 2 Put some washers underneath of the lid lock in that way that the lid latch is centric to the closing bar 3 Adjust the high of the lid lock that the distance between the lid and the housing is about 8 mm to 9 mm 4 Bent the steel nib of the upper micro switch 1 figure 63 in that way that it is given the signal after the lid latch has pressed the steel nib under the level of the bar The motor of the l
13. operation menu Part 1 Activate the operation menu as described under 7 3 2 Activation of the service menu Part 2 Press the button accel decel 5 Turn the potentiometer 1 until the special digit U appears in the display acc dec A 2 see figure 39 figure 39 Press the button rpm rcf 4 The display rpm rcf A 1 is now activated and you can choose the respective setup between 30 and 20 with the potentiometer 1 Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the set ups where all for nothing If the storage has been successfull in the display rpm rcf A 1 the value of the imbalance sensor and the word storE are indicated Hermle Labortechnik GmbH Service Manual 32 HK 26 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 3 2 4 Submenu Activating Deactivating of the electronical Imbalance If you want to adjust the mechanical imbalance switch see chapter 7 4 13 then you have to switch off the electronic movement sensor as follows Activate as described under 7 3 1 Activation of the operation menu Part 1 Activate as described under 7 3 2 Activation of the service menu Part 2 Press the key time 6 In the display rpm rcf A 1 the word b SEN AUS see picture 40 is now indicated The electronic imbalance detector is now not longer activated figure 40 Turn the device off
14. side and remove the two fixing screws of the green circuit board on the rear side look up in chapter 7 2 8 Replace the board and reassemble the unit in reverse order After reassembling everything do a new calibration as described in chapter 7 3 1 12 Mechanic micro switch Replacing the imbalance micro switch Remove the covering of the front housing as described in chapter 7 4 1 Remove the housing as described in chapter 7 4 5 Remove all defective parts as imbalance micro switch angles or spring plates Adjust the imbalance micro Figure 58 Adjustment of the imbalance micro switch Shut off the movement sensor first as descript in 7 3 2 3 Put a rotor into the unit and fasten the rotor nut Load one hole of the rotor with the listed imbalance shut off weight in table 6 3 Adjust the acceleration accel and the deceleration level decel on the control board to level 9 Hermle Labortechnik GmbH Service Manual Z 32 HK 37 HERML SERVICE INSTRUCTIONS LABORTECHNI Start the centrifuge The unit must shut off when reaching the listed speed of the resp rotor see table 3 n case the unit does not shut off you have to loosen the fixing screws of the imbalance sensor Adjust the imbalance sensor more sensitive with the adjusting screw clockwise Repeat those steps as often as the listed value of the table 6 3 is reached Switch off the unit with error message 01 and fill t
15. the power board Remove the covering of the front housing as described in chapter 7 4 1 Remove all cable connections to the power board Remove the four fixings screws Figure 56 e Reassemble the unit in reverse order 7 4 12 Replacing the frequency converter Remove the covering of the front housing as described in chapter 7 4 1 Remove all cable connections to the frequency converter Remove fixing screws as shown on the below picture and remove the frequency converter from the unit Te e ine roi F Figure 57 A Attention Before placing a new converter into the unit put some heat conducting paste onto the fixing surface Reassemble the unit in reverse order Hermle Labortechnik GmbH Service Manual 32 HK 36 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIK 7 4 13 Checkup the imbalance sensor Movement sensor From software version 1 60 it is possible to adjust correct the imbalance value see chapter 7 3 2 3 Should appear any difficulties with the imbalance please give us an exact description of it as well as the serial number of the unit and the rotor type You can check up the imbalance sensor with the operation menu Look up in chapter 7 3 1 12 Replacing the imbalance movement sensor and speed sensor Remove the covering of the front housing as described in chapter 7 4 1 Remove the motor as described in chapter 7 4 4 Lay the motor down on its
16. we are able to improve and complete this instruction manual Many thanks in advance for your support HERMLE Labortechnik GmbH 8 2 Survey of possible error messages and their solutions 8 2 1 Lid release during power failure In case of power failure or malfunction the lid of the centrifuge can be opened manually in order to protect your samples Please proceed as follows Switch the centrifuge off and unplug the power cord At the left side of the centrifuge there is a plastic stopper Remove this stopper Behind there is a hexagon nut Take the delivered box spanner put it in the hole and lock the box spanner with the hexagon nut Now turn the box spanner to the right side clockwise up to the limit ATTENTION Just turn to the limit don t tighten the nut Now open the lid of the centrifuge and take out the box spanner Switch the centrifuge on again for go on working al gt Figure 69 Hermle Labortechnik GmbH Service Manual Z 32 HK 45 HERMLE TROUBLE SHOOTING aon ronnie 8 2 2 Description of the error message system The error message is shown in the time display through particular figures At the same time the word error is indicated in the display see figure 70 Figure 70 8 2 3 Errors that may be indicated in the LCD display Description Cause Imbalance arose Excessive acceleration at the sensor Imbalance sensor is defective Rotary encoder circuit board is defective
17. HEHMLE Service Manual for High Speed Centrifuge Z 32 HK Hermle Labortechnik GmbH CONTNET Content O Tech r CG DALA 1 u 5 6 1 Acceleration times Z 32 HK 120 V 230 V in min sec nn 5 6 2 Decelertaion times Z 32 HK 120 V 230 V in min SEC 2 6 3 Imbalance shut off data Z 32 HK 120V 230 V uu nr re ene ene enne nnnnnnn nnn nna nna nna nn anna nnus 3 7 Service Instructions ce 4 7 1 General technical description U U u oie EEUU EN DL EVE SUE aS 4 7 2 Electrical and electronically components U U U u uu u L 4 L odio 5 neat 4 T1222 610 8 01218 062 0h EC nnn eee dtt E qM RI USD 5 2 Ibn 6 Zi ASOMMON CAME u uu iii iii i T PEE uela ae Reed i i ME oom teen ee en 8 1 2 0 Rotor recognitlion 8 PN MEE ONCE peed DOIGTS LL UI ee an 9 LO DOS ir 9 29 EGO c UUOO 9 6210 IMPARANO 10 1 3 Operation Menu I U U U U iii 11 7 3 1 Activation of the operation menu Part 1 11 7 3 1 1 Submenu Motor starts inner 13 7 3 1 2 UTS IY Gy CS 13 7 3 1 3 Submenu running time of the motor sess nnns 14 1 3 1 4 Submenu Software statUs sessione nne rini ni nii it 14 1 315 Submenu Software status of the frequency converter
18. Level 6 IN Cc IN I lo CO OE O c IN IN eo a Level 7 cO lo N IN IR l o CO C EO cC C O IN IN l Level 8 J lon IN ao IN on CO cC EO cC cC O c EL IRE ME um Ies Level 9 J IN lo o O O O C1 N N O gt O O O IN C O A gt O O O N CO co Ie ee N IN CO N O O O N IN A IN O O O N IN O O O O O N O IN IN O O O d a co N e IN O IN c1 c ISS E o O OO IO OO W O e IN O IN gt N IN c O gt CO IN N IN Co e O O Io IN IR lo lt RO IN IN 01 O co O O O o I0 IN W gt O I I gt I gt c c on jon a gt R D O Ko o gt O c fa a c c BK lo a ce CO Ie R IN IN 00 C I JS Ec lo Ia Jo IN o lO 5 9 I 2 JS w l loa Jon w o gt N o gt 2 oo Se C The acceleration and deceleration times may have slight fluctuations that depend on the unit and are therefore guidelines only Hermle Labortechnik GmbH Service Manual 32 HK TECHNICAL DATA 6 3 Imbalance shut off data Z 32 HK 120V 230 V All rotors are set by the work of using motion detectors but they can also be set by the imbalance switch See chapter 7 2 10 and 7 4 13 sain off speed in Permitted imbalanc
19. The VDE regulations are valid for all electrical work that has to be done 7 2 Electrical and electronically components 7 2 1 Power board The power board is serving the low voltage supply of the centrifuge control system with 5 V and 24 V The power board is electrically isolated and has a dielectric strength of DC 2 2 kV Figure 1 Power board Hermle Labortechnik GmbH Service Manual 32 HK 4 Lo Ww HERMLE SERVICE INSTRUCTIONS LasoaT cnn 7 2 2 Controal board PCB The control board consists of one plate The board can only be exchanged completely If there is a defect you have to exchange the complete board After a change the control board is to be set new depending on the model All signal lines lead to the control board The PCB controls the entire centrifuge Figure 2 Controal board Hermle Labortechnik GmbH Service Manual Z 32 HK 5 HERMLE SERVICE INSTRUCTIONS LasonT ronnie 7 2 3 LCD Display The following picture shows the individual elements of the LCD display M4 Mi M12 M8 M7 M14 M15 M10M11 M9 Figure 3 LCD Display Display fields A 1 Display field rom rcf A 2 Display field acc dec A 3 Display field time A 4 Display field temp Messages logos of the display fields M1 close M8 decel M15 precool M2 open M9 radius M3 rotor M10 program M4 rotor No M11 error M5 PM M12 service M6 rof
20. Therefore maximum capability of the refrigeration system can be reached at any status of operation As soon as the required pre set temperature is reached the compressor will switch off When the temperature rises again the compressor will switch on again The response time of the compressor is controlled with a microprocessor control The processor receives the chamber temperature data through a temperature sensor placed in the rotor chamber As the actual sample temperature may not be identical to the temperature measured in the rotor chamber the micro processor will calculate the sample temperature for the rotor in use This temperature value is indicated in the temperature display The temperature adjustment of the micro processor is based on this calculated temperature value Therefore the user always gets the exactly requested sample temperature 1 C The samples are not being damaged through over or lower temperature Refrigeration scheme Figure 66 Hermle Labortechnik GmbH Service Manual 32 HK 42 SERVICE INSTRUCTIONS 7 53 Emptying and filling the refrigeration system refrigerant R 404 a For this performance you need a refrigerant suction plant with container a vacuum pump a vacuum measuring device a measuring device for refrigerants and a manometer combination The refrigeration system has the CFC free refrigerant type R 404 a Emptying the refrigeration system Remove the housing until the refrige
21. al 32 HK 16 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 3 1 8 Submenu Setup of the loudspeaker Here you can switch on resp switch off the loud speaker audible sound Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service L appears in the display acc dec A 1 Figure 22 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective option with the potentiometer 1 Now the audible sound is activated resp not activated by the end of the run or when an error message will occur A Attention In case that the loudspeaker is switch off the keypad tone and the audible error message will also be suppressed The keypad tone has to be switched on again after the reactivation of the loud speaker However the audible error message is automatically activated if the loud speaker has been reactivated A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Figure 23 Hermle Labortechnik GmbH Service Manual Z 32 HK 17 HERMLE SERVICE INSTRUCTIONS LasonT ronnie 7 3 1 9 Submenu Setup of the keypad tone Here you can switch on resp switch of
22. amber have to be disinfected right after the run Rotors may be autoclaved at a maximum temperature of 121 C 9 1 5 Disinfection of PP rotors Autoclaving The recommended time for autoclaving 15 20 min at 121 C 1 bar A Attention The sterilization time of 20 min must not be exceeded Sterilization again and again will cause reduction of the mechanical resistance of the plastic material Before the autoclaving the PP rotor and adapter must thoroughly be cleaned to avoid the burning in of dirty residues You can disregard the consequences of some chemical residues to plastic materials at ambient temperatures But at the high temperatures of the autoclaving those residues may corrode and destroy the plastic The objects must be thoroughly washed up with distilled water after the cleaning Hermle Labortechnik GmbH Service Manual Z 32 HK 49 MAINTENANCE but before the autoclaving Residues of any cleaning liquids may cause fissures whitening and stains Gassterilization Boxes bottles and rotors may be gassterilized with Ethylenoxyd According to the duration of the application you may give long enough an airing to the items after the sterilization and before using them again A Attention Because the temperature may rise during the sterilization rotors boxes and bottles must not be closed respectively must be totally unscrewed Chemical sterilization Bottles boxes and rotors may be treated with the usual liquid disinfe
23. and turn it on again The word UA appears now in the display time A 3 see picture 41 Now you can adjust the mechanical imbalance detector see chapter 7 4 13 Adjustment of the mechanical imbalance detector figure 41 Hermle Labortechnik GmbH Service Manual Z 32 HK 27 HERMLE SERVICE INSTRUCTIONS CascaTecnn 7 4 Mounting support After performing any kind of assembling work please make sure all the grounded contacts are connected correctly 7 4 1 Replacing the front housing the potentiometer and the display Replacing the front housing Remove the lower covering by turn out the 2 screws see figure 42 Pull the lower edge of the covering away from the mounting plate Pull the covering out of the upper guiding rail Loosen the 5 screws under the control panel and pull away the panel forward see figure 43 Use therefore the pictured tools Remove the interface cable on the control board connection between control board and control panel remove Figure 42 Figure 43 Hermle Labortechnik GmbH Service Manual 32 HK 28 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 4 3 Replacing the potentiometer Remove the cap on top of the potentiometer see figure 44 With a socket wrench you can loosen the fastening nut Figure 44 Loosen all electrical contacts to the shaft encoder on the back side of the front housing Figure 45 7 4 3 Replacing the display Loos
24. ase you have to replace the motor or the rotary encoder board for any reason a new calibration is required urgently The mechanical imbalance switch micro switch has to be re adjusted too see chapter 7 4 13 Hermle Labortechnik GmbH Service Manual Z 32 HK 21 HERMLE SERVICE INSTRUCTIONS LasonT ronnie A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Figure 32 7 3 1 13 Submenu Indication of the imbalance value of the rotor A Attention To get access to this menu and read off the imbalance value you have to close the lid of the unit before Activate the operation menu Here you can read off the imbalance value of the rotor transponder Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service Y appears in the display acc dec A 2 Figure 33 In the bottom line of the display rpm rcf the real imbalance value is indicated In the top line the rotor number is indicated in this case 221 17 V0 Hermle Labortechnik GmbH Service Manual 32 HK 22 HERMLE SERVICE INSTRUCTIONS Lason Tecra e 7 3 1 14 Submenu Keyboard test The keyboard test is used for checking the co
25. ctants Attetention Before applying any other cleaning resp Decontamination method than recommended by the manufacturer contact the manufacturer to ensure that it will not damage the unit or the rotor 9 1 6 Glass breakage With high g values the rate of glass tube breakage increases Glass splinters have to be removed immediately from rotor buckets adapters and the rotor chamber itself Fine glass splinters will scratch and therefore damage the protective surface coating of a rotor If glass splinters remain in the rotor chamber fine metal dust will build up due to air circulation This very fine black metal dust will extremely pollute the rotor chamber the rotor the buckets and the samples If necessary replace the adapters tubes and accessories to avoid further damages Check the rotor bores regulary for residues and damages A Attention Please check the relevant specifications of the tubes centrifuges with the manufacturer 9 1 7 Service life of rotors round and rectangular buckets accessories Rotors and rotor lid made of aluminium or stainless steel have a operating life of max 7 years from first use Transparent rotor lids and caps made of PC or PP as well as rotors tube racks and adapters of PP have a maximum service life up to 3 years from first use Tube racks which are used in rotor no 221 12 V03 have a service life up to 1 year from first use Condition for the operating life Proper use damage free conditi
26. d by an electro motor receiving its signal from the control board The actual state is indicated in the display M1 M2 rom rcf Figure 9 Hermle Labortechnik GmbH Service Manual Z 32 HK 9 HERMLE SERVICE INSTRUCTIONS As TTE 7 2 10 Imbalance detection The imbalance detection is done in two ways A micro switch controls for certain rotors the displacement of the motor and shut off if there is too much imbalance The micro switch should be adjusted according to the instruction of the company see chapter 7 4 13 and table 3 A movement sensor which is mounted underneath the motor is controlling the oscillating motion of the motor The unit stops when the oscillating motions are too strong Setup data specified by the manufacturer for rotors controlled by the movement sensor cannot be changed Figure 10 Imbalance detection Chapter 7 2 9 Chapter 7 3 1 8 Chapter 7 2 5 Chapter 7 2 2 Figure 11 Chapter 7 2 1 Hermle Labortechnik GmbH Service Manual 32 HK 10 HERMLE SERVICE INSTRUCTIONS WERE 7 3 Operation menu Valid for the units of the category with frequency converter The operation menu helps the service personnel to locate defects It is divided in two parts which are graded in several areas again from chapter 7 3 1 to 7 3 2 3 Part 1 is accessible for the USER and different points can be read respectively settled This is also described in the instruction manual Part 2 is for interna
27. e Manual 32 HK SPARE PARTS 950 173 Hinge stainless silver 950 174 Rubber foot 954 015 Imbalance switch holder 954 017 Chamber gasket grey 954 018 Motor rubber mount 954 019 Expansions valve 960 056 Compressor 230 V 964 013 Compressor 120 V 964 014 Condenser 230 V 964 015 Condenser 120 V 964 016 Table 4 Spare part list Hermle Labortechnik GmbH Service Manual Z 32 HK 55
28. e in Imbalance shut off in gram TIC 220032006 72 V06 400 9000 7500 9500 1200 1200 1000 1100 11000 11200 1400 4000 1310 9000 221 38 V02 n a Table 3 Imbalance shut off The shut off weight and speed may have slight fluctuations that depend on the unit and are therefore guidelines only Hermle Labortechnik GmbH Service Manual Z 32 HK 3 HERML SERVICE INSTRUCTIONS LABOR ECHNII T Service Instructions 7 1 General technical description Model Z 32 HK is a micro processor controlled cooled laboratory centrifuge The actuation is a three phase asynchronous motor which is controlled by frequency converter Model Z 32 HK has an independent error detection program displaying possible errors and therefore supporting the trouble shooting process The unit is equipped with several safety features Imbalance detection Motor over temperature protection Lid lock does not open until the standstill of the centrifuge Rotor over speed protection Sample over temperature protection 50 C Please follow below mentioned safety instructions for any kind of service actions The capacitor of the frequency converter can be under voltage even when the unit is switched off Do not leave units unsupervised when parts of the housing have been removed and the unit is still connected to the main power supply Do not bypass the lid s safety contacts and never work with the unit s lid open
29. e in hygiene but also in avoiding corrosion based on pollution n order to avoid damaging anodized parts such as rotors reduction plates etc only pH neutral Detergents with a pH value of 6 8 may be used for cleaning Alkaline cleaning agents pH value gt 8 must not be used After cleaning please ensure all parts are dried thoroughly either by hand or in a hot air cabinet max Temperature 50 C t is necessary to coat anodized aluminium parts with anti corrosion oil regularly in order to increase their life spans and reduce corrosion predisposition Due to humidity or not hermetically sealed samples condensate may be formed The condensate has to be removed from the rotor chamber with a soft cloth regularly A The maintenance procedure has to be repeated every 10 to 15 runs but at least once a week Connect the unit to the power supply after the equipment is completely dry Do not carry out disinfection with UV beta and gamma raysor other high energy radiation Metal rotors can be autoclaved Rotor lid and adapters can also be autoclaved max 121 C 20 min The tube racks are made of PP and can not be autoclaved at 134 C Hermle Labortechnik GmbH Service Manual 32 HK 48 MAINTENANCE 9 1 2 Cleaning and disinfection of the unit Open the lid before you turn off the unit Disconnect it from the power supply Open the rotor nut by turning the rotor key clockwise Remove the rotor For cl
30. eaning and desinfection of the unit and the rotor chamber using the above mentioned cleaner 5 Clean all accessible areas of the device and its accessories including the power cord with a damp cloth 6 Wash the rubber seals and rotor chamber thoroughly with water 7 Rub the dry rubber seals with glycerol or talc to prevent these to becoming brittle Other components of the unit e g the lid lock motor shaft and rotor must not be greased 8 Drythe motor shaft with a soft dry and lint free cloth 9 Control the unit and accessories for damage pe IY Remove at least every six months adherent dust from the ventilation slots in the centrifuge by using a brush 9 1 3 Cleaning and disinfection of the rotor 1 Clean and disinfect the rotors rotor lids and adapters with the above mentioned cleaner 2 Usea bottle brush to clean and disinfect the rotor bores 3 Rotoren Rotordeckel und Adapter gr ndlich mit Wasser absp len Besonders die Rotorbohrungen von Festwinkelrotoren beachten 4 For drying of the rotors and accessories set them on a towel Place the angle rotors with bores down to dry them to 9 Dry the rotor cone with a soft dry and lint free cloth and look for damage Do not grease the rotor cone 6 Place the dry motor onto the motor shaft T Pullthe rotor nut tight by using the rotor key 9 1 4 Disinfection of aluminium rotors In case of infectious material spilling into the centrifuge the rotor and rotor ch
31. eaning and disinfection of the unit 49 9 1 3 Cleaning and disinfection of the rotor l rin 49 9 1 4 Disinfection of aluminium rotors l l bent are L nn n a uu cucina 49 94 5 Disinfection of PP rotlors I A 49 MEME CI BICI 50 9 1 7 Service life of rotors round and rectangular buckets accessories ll aaa 50 10 x dis iS a teen 51 10 1 Flow diagram 230 V 120 V 50 60 Hz page sc ai denm cried an Er reines 51 10 2 Flow diagram 230 V 120 V 50 60 Hz page 2 l l U u u u 52 Hermle Labortechnik GmbH SA Z32HK_eng_V1 14 HERML CONTNET LABOR ECHNIt 10 3 Cono DON ae ae en aa eo a ar 11 SPARI Hermle Labortechnik GmbH SA Z32HK eng V1 14 CONTENT 6 Technical Data 6 1 Acceleration times Z 32 HK 120 V 230 V in min sec Rotor Number mw ta Table 1 Acceleration times ND o lw l Om KR coc Level 2 co IN o I C C JO a IN C1 N Ioa o o IN Level 3 Oo co C jo c j gt cC R IN UR Jo E TN Level 4 Co CD e Se C e c j gt cC Co le E In Level 5 C1 IN Ia Cn wW cO C jo c j gt cC C ln I O o IN C o c j gt cC N l IN l lo l Level 7 A IN IO IN lo 5 jo j gt Q N IN l O Level 8 AR c2 O1 I IN gt oO gt c j gt Q N IN l O Level 9 N IN IN gt gt
32. en all electrical contacts to the display on the back of the front housing Remove the 4 fastening screws of the display and pull away the display upwards Figure 46 Hermle Labortechnik GmbH Service Manual Z 32 HK 29 7 4 4 HERMLE D SERVICE INSTRUCTIONS L ABOR ECHNIK Replacing the foil keyboard Remove the potentiometer and the display e Peel off the defective foil keyboard and clean the remaining glued joints Glue the new foil keyboard precisely in the recess Make sure the foil matches precisely and the window of the foil keyboard lies exactly over the display Attention Do not use already glued keyboard foil again Reassemble the control panel in reversed order and mount it back in the front housing Removing the housing Remove the control panel as described in chapter 7 4 1 Remove the back wall plate and its electrical ground Figure 47 e Remove all screws on the left right side of the housing and its electrical grounding Figure 48 Remove the housing upwards e Reassemble the unit in reverse order Make sure the lid sealing which is also the rotor chamber sealing is placed correctly You can use a small allan key Hermle Labortechnik GmbH Service Manual 32 HK 30 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIK Push it between sealing and rotor chamber Pull the sealing in a circular movement towards the chamber s centre See chapter 7 4 6 Figure 49 7 4
33. f the keypad tone e Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service b appears in the display acc dec A 2 Figure 24 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective option with the potentiometer 1 Now the keypad tone is either activated or not activated A Attention In case that the signal is switched off the keypad tone and the audible error message will also be suppressed The keypad tone has to be switched on again after the reactivation of the loudspeaker However the audible error message is automatically activated if the loud speaker has been reactivated A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Figure 25 Hermle Labortechnik GmbH Service Manual 32 HK 18 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 3 1 10 Submenu Setup volume of the loudspeaker Here you can setup the volume of in case the loudspeaker is activated e Activate the operation menu as described in chapter 7 3 1 e Turn the potentiometer 1 until the special digit service u appears in the display acc dec A 2 F
34. he key rpm rcf 4 the display rpm rcf A 1 is activated and you can scroll through the error list with the potentiometer 1 Hermle Labortechnik GmbH Service Manual Z 32 HK 15 HERMLE SERVICE INSTRUCTIONS Cason Tron Now the last 99 occurred error messages are indicated in the display rpm rcf A 1 Whereas the first two digits describe the place number and the last two digits do describe the occurred error Look at chapter 8 2 3 Errors that may be indicated in the LCD display 7 3 1 7 Submenu Setup of temperature for refrigerated units only Here you can change the temperature unit from degree Celsius C to degree Fahrenheit F Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service c appears in the display acc dec A 2 Figure 20 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective temperature unit with the potentiometer 1 Now the temperature is indicated in C resp in F during the normal operation A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Figure 21 Hermle Labortechnik GmbH Service Manu
35. he rotor with the permitted imbalance weight The unit must not shut off after the start In case the unit shuts off you have to lower the sensibility of the sensor Incase you have to readjust the imbalance sensor when testing the permitted imbalance weight you have to repeat the procedure with the imbalance shut off Turn the unit off and on gt the movement sensor is turned on again 7 4 14 Replacing the control board Remove the covering of the front housing as described in chapter 7 4 1 Remove all electrical connections on the control board Remove the 4 screws and remove the control board Figure 59 7 4 15 Replacing the break resistance Remove the covering of the front housing as described in chapter 7 4 1 Remove the screws and the center screw of the electronic components mounting plate Upon this there are fixed the electronically components Remove the electrical connections of the break resistance to the frequency converter Tilt the mounting plate forwards Hermle Labortechnik GmbH Service Manual 32 HK 38 HERMLE D SERVICE INSTRUCTIONS LABOR ECHNIK Figure 60 Remove the 2 screws on the backside of the mounting plate and remove the break resistance Put in the new break resistance connect the electrical connections The electrical connections are changeable Reassemble the unit in reverse order 7 4 16 Replacing the signal generator Remove the covering of the
36. ice Manual Z 32 HK 33 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIK Figure 54 Remove the areal as described in chapter 7 4 9 Remove the screws from the motor fixing Lift the motor out of the unit Figure 55 When reassembling the spare motor take care of the wirings as they must not be jammed When tightening the motor mount screws please pay attention the motor rubber mounts are not being twisted When connecting the motor with the electricity take care of the rotating direction Direction of arrow Reassemble the unit in reverse order Replacing the motor rubber bearings Remove the covering of the front housing as described in chapter 7 4 1 Remove the motor as described above e Tilt the unit a little bit and remove the screws of the motor rubber mounts Putin the new motor rubber mounts and reassemble the unit in reverse order Hermle Labortechnik GmbH Service Manual 32 HK 34 SERVICE INSTRUCTIONS Take care that the motor is placed straight and centered in the rotor chamber The distance of the center of the motor shaft to the wall of the rotor chamber must be strictly adhered When tightening the motor rubber mounts also take care that they are not being twisted A Attention After are placing of the motor look to chapter 7 3 1 12 Hermle Labortechnik GmbH Service Manual Z 32 HK 35 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIk 7 4 11 Replacing
37. id lock Hermle Labortechnik GmbH Service Manual 32 HK 40 HERMLE SERVICE INSTRUCTIONS LABORTECHNIK should not be blocked during the closing of the lock Otherwise you have to repeat the steps 3 and 4 5 Perhaps you have to bend the steel nibs of the other micro switches of the end stops into their position 6 Tighten all the screws well 7 4 18 Replacing the temperature sensor Remove the covering of the front housing as described in chapter 7 4 1 Remove the electrical supply on the control board 1 see figure 64 Figure 64 Remove the motor rubber covering by pulling it out simply Figure 65 e Pull out the temperature sensor from the rubber motor cover Hold therefore the underneath rubber nose which held the sensor housing in its position Press afterwards the rubber nose together and push it towards the hole e Reassemble the unit in reverse order Hermle Labortechnik GmbH Service Manual Z 32 HK 41 SERVICE INSTRUCTIONS 7 5 Refrigeration system 1 5 1 Functional description of the refrigeration system The expansion valve regulates how much refrigerant is being led to the evaporator The compressor makes the refrigerant available in the collective dryer A sensor is continuously measuring the temperature at the evaporator output Through this the injection nozzle of the expansion valve is controlled and the evaporator is supplied with the max necessary amount of refrigerant
38. igure 26 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective option with the potentiometer 1 At the end of the run you can now hear the setup volume whereas 0 is the most quiet setup and 9 the loudest one Figure 27 Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated Hermle Labortechnik GmbH Service Manual Z 32 HK 19 HERMLE SERVICE INSTRUCTIONS Cason Tecnu 7 3 1 11 Submenu Setup of the signal melody Here you can setup the volume of the loudspeaker in case the signal generator is activated Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service appears in the display acc dec A 2 Figure 28 By pressing the key rpm rcf the display rpm rcf is now activated and you can setup the respective option with the potentiometer At the end of the run you can now hear the audible sound in the setup volume whereas 0 is the most quiet setup and 9 the loudest one A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing
39. king to avoid any scratches Loosen the screws of the respective hinges on the inner side of the lid Figure 51 e Reassemble the unit in reverse order Make sure the lid rests on the lid gasket straight and continuous Tighten the fasting screws firmly at the backside of the unit after the adjustment 7 4 9 Replacing the aerial rotor sensor Remove the motor rubber covering by pulling it out simply e Remove the screws of the aerial Hermle Labortechnik GmbH Service Manual 32 HK 32 HERMLE SERVICE INSTRUCTIONS LABORI ECHNIK Figure 52 Remove the lower covering of the front housing as described in chapter 7 4 1 Remove the connection cable on the control board and remove the aerial Figure 53 Putin the new aerial e Reassemble the unit in reverse order Only use plastic screws otherwise there can trouble occur 7 4 10 Replacing the motor resp the motor rubber bearings Remove the covering of the front housing as described in chapter 7 4 1 Remove the connection cables to the motor on the control board and the frequency converter 1 Motor temperature on the frequency converter 2 Current supply motor on the frequency converter a U2 black b V2 Brown c W 2 blue d Ground This is a clamp system Make sure that after new connections the wives are clamped between the points 3 Speed and imbalance sensor on the control board Hermle Labortechnik GmbH Serv
40. l use respectively for trained service personnel outdoors Hermle LaborTechnik only The control board can be adjusted to different units Here the different parameters are determined on the respective unit after an exchange of the control board 7 3 1 Activation of the operation menu Part 1 The menu can be started as follows Open lid of the centrifuge and switch off main switch Up to software version 1 24 press the key time 6 and prog 11 hold them and at the same time switch on the unit From software version 1 25 please use the keys time 6 and lid 7 As you can t know beforehand which software is installed in the unit you have to try which combination will start operation menu see therefore figure 4 Find out by trying Figure 12 start menu After the indication displays flash on led go off the keys time 6 and orog 11 resp time 6 and lid 7 In the display rpm rcf 4 the stored type of the centrifuge i e 216 see figure 12 and below a letter is indicated for about 2 seconds The letter stands for the different versions of the units see 7 3 which are currently stored in the control board C for cool h for heat no for nothing Now it follows a display test for about 5 seconds as shown here under Hermle Labortechnik GmbH Service Manual Z 32 HK 11 HERMLE SERVICE INSTRUCTIONS LasonT ronnie Figure 13 display test Now you have entered the
41. on recommended care Hermle Labortechnik GmbH Service Manual 32 HK 50 HERMLE LABORTECHNIK CIRCUIT DIAGRAMS 10 Flow diagrams PASSE puejelde4 MHZEZ jeqnH 1nuul H JASIN OWEN unjeq JHZEZ Wiwa Hquu xuu euoqe1 31W33H ora 8AS LAS SJojoeuuoo Bnjd juawubisse uid LX Siojoeuuos Bnjd jueuuuBisse uid BAS LAS Jeputque ypels BunBajag uld LX Jepuique yoers BunBejeg utd Lcevgo L rv 000000 o o Em c0 L0 00 3H yun 01 U09 BunJsana s dN JeuyeAuoo JojyeAuoo euusjue eoue equuil eouejequuipeeds ouenbaJj uoneoiunuuuoo fouanbayj op Ajddns Jamod Ajddns Jamod Jamod uu uv uonwun yuonxunyluezu ijq Jejuouuuf uoneyiunuutuoy Ja YOUWA Bdsuapain HAZAN IZAN ZION D re Food eee 7 essais 7 Lr rade 7 poc potet yoezz Ajuo auejdyoeq thn thn T H T Hi T iTiHI1TIITEH TI I TE T r at T ET AT ff r qat r HOEZZ INN uo ejqpuewxonM LIlI4292 LrI49 o D x J J SLOW LIJI CLIJ EEIJ9 LE LYS LE Jequueuo I9SSOM Login a ejd Bununow uo e qeBejuo N n etude FA 8 L6 1 gem 3 18 1 ona z BS o x S 2 e O a D EU D gt B SE 4H Bec RR c JeueAuoo KouenbaJj us co Jeyuyouuu zuenbejj 29 LI e N 0 LO e px gt E ejeid woog c o c b p euueMuepog N L n guu lue oueg equui p
42. press once again the key stop 10 Figure 36 Now you can carry out the below shown adjustments 7 3 2 1 Submenu Adjustment of the centrifuge type Here you can adjust the different centrifuge types that are stored on the control board Activate the operation menu as described in chapter 7 3 1 Activate the service menu as described in chapter 7 3 2 Turn the potentiometer 1 until the special digit service t appears in the display acc dec A 2 Examples Figure 37 By pressing the key rpm rcf 4 the display rpm rcf A 1 is now activated and you can setup the respective option with the potentiometer 1 Attention Please do not adjust any other centrifuge types than the mentioned one on the type label of the unit Otherwise there might the possibility to occur defects either in the electronic and or the mechanic components Hermle Labortechnik GmbH Service Manual 32 HK 24 HERMLE SERVICE INSTRUCTIONS WEE A Attention After all points have been reviewed and or set up you have to press shortly the key start 9 to store all parameters Otherwise the setups were all for nothing If the storage has been successful in the display rpm rcf A 1 the value of the imbalance sensor and the word StorE are indicated 7 3 2 2 Submenu Adjustment of the operation mode Here you can adjust the different operation modes stored on the control board Activate the operation menu as described in chapter
43. ration set is exposed see chapter 7 4 5 Connect the suction plant to the valve see figure 67 Remove the refrigerant from the system You can now perform necessary repairs Filling the refrigeration system Connect the vacuum pump the manometer combination and the refrigerant bottle R 404 a to valve 1 see figure 67 Evacuate the refrigeration system for approx 30 min Switch off the vacuum pump Make sure that the reached vacuum stays constant after switching the pump off otherwise the system is leaky Fill the refrigeration set with 550 g refrigerant type R 404 a Check all tube connections with a leakage detection device for possible leakage ATTENTION You must use refrigerant type R 404 a only Filling amount is 550 g Valve Figure 67 Example Hermle Labortechnik GmbH Service Manual Z 32 HK 43 HERMLE SERVICE INSTRUCTIONS LABOR ECHNIt ak UA X TS Figure 68 Hermle Labortechnik GmbH Service Manual 32 HK 44 HERMLE TROUBLE SHOOTING L ABOR ECHNIK 8 Trouble Shouting 8 1 Error messages Cause Solution Preface The error messages are listed to help localize possible errors faster The diagnosis referred to this chapter may not always be the case as they are only theoretically occurring errors and solutions Always please keep us informed about any kind of error occurring which is not listed in this chapter Only through your information
44. rrect function of the foil keyboard Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service P appears in the display acc dec A 2 Figure 34 By pressing each key the word PrESS switches from the bottom to the top line in the display rpm rcf A 2 The key accel decel 5 excluded 7 3 1 15 Submenu Indication of the revision number of the control panel Check of the external imbalance sensor Here you can read off the revision number of the control board From the revision number 2 and the software version 1 33 on or higher you have the possibility to check the function of the imbalance sensor Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service d appears in the display acc dec A 2 EXAMPLE Revision number 0 without automatically check sce figure 35 left display Revision number 1 with automatically check in this case off gt see figure 35 right display Figure 35 Hermle Labortechnik GmbH Service Manual Z 32 HK 23 HERMLE SERVICE INSTRUCTIONS Laon TECH 7 3 2 Activation of the Service menu Part2 To get access to the second level of the service menu you have to press the key stop 10 for longer than one second Now you are asked for a code in the display rpm rcf A 2 adjust the code 9876 with the potentiometer 1 and
45. t service h appears in the display acc dec A 2 Figure 16 In the display rpm rcf A 1 the running time of the motor is indicated now 7 3 1 4 Submenu Software status Here you can read off the software status Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service S appears in the display acc dec A 2 Figure 17 In the display rpm rcf A 1 the actual software status is indicated now alternately with Built No and Compilerversion The Built No and Compilerversion are exclusively for internal purpose Hermle Labortechnik GmbH Service Manual 32 HK 14 HERMLE SERVICE INSTRUCTIONS Lason Tecra 7 3 1 5 Submenu Software status of the frequency converter Here you can read off the software status of the frequency converter Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service r appears in the display acc dec A 2 Figure 18 In the display rpm rcf A 1 the actual software status of the frequency converter is indicated now 7 3 1 6 Submenu Error Memory Here the last 99 occurred error messages can be indicated Activate the operation menu as described in chapter 7 3 1 Turn the potentiometer 1 until the special digit service E appears in the display acc dec A 2 Figure 19 By pressing t
46. the foil keyboard PR m iaia 30 TAS REMOVINI TE OR E EEN 30 TAO Replacing TAS GSC Nm 31 LAL RI 31 T48 Replacing Me NNGOS Omm 32 7 4 9 Replacing the aerial rotor sensor nnn nnns 32 7 4 10 Replacing the motor resp the motor rubber bearings l I I I naa 33 1 4 11 Replacing the power board nnne nnne nnne nnn nnn nnns nnn 36 7 4 12 Replacing the frequency converter nennen nnns 36 7 4 13 Checkup the imbalance sensor nn 37 4 13 Roblaoing AE COMMON OO arri 38 7 4 15 Replacing the break resistance l esse ta nes eines use te ne eee teens 38 4 10 Replacing th SION PNR Ost a aan 39 LAA etai C 40 7 4 18 Replacing the temperature sensor ins 41 7 5 Refrigeration System LLULLU ini 42 1 5 1 Functional description of the refrigeration system 42 LOL ires eet Emm 42 7 9 3 Emptying and filling the refrigeration system refrigerant R 404 a 43 5 Troubl SHOU UNG cosas TETUER ia 45 8 1 Error messages Cause Solution sini 45 0 2 Survey of possible error messages and their solutions u u 45 8 2 1 Lid release during power failure inner 45 8 2 2 Description of the error message system I I nnne nnne nnn nnns 46 8 2 3 Errors that may be indicated in the LCD display 46 9 MANIA aa ana ea aan ea ce a nn UUEU 48 9 1 Maintenance and cleaning I U UU cirie aci 48 s n Seni 48 9 1 2 Cl
47. to frequency converter control is defective um Temperature sensor is defective Temperature sensor is defective cable break Hermle Labortechnik GmbH Service Manual 32 HK 46 47 70 FALSE Hermle Labortechnik GmbH TROUBLE SHOOTING Lid contact defective Lid motor is blocked the lid lock is blocked for 30 sec from 08 10 08 Version 1 26 Communication with frequency converter disturbed during start Position request not understood at the start Communication with frequency converter disturbed during start Position request not understood at the stop Under voltage frequency converter Over voltage frequency converter Over temperature frequency converter Over temperature motor Motor runs hard ventilation is defective Over current frequency converter Frequency converter is defective motor is defective Timeout between control unit and Software of the unit has a black out frequency converter Other error frequency converter No rotor detected The rotor which is stored in the program does not match with the inserted rotor Service Manual Z 32 HK Lid interlock was held lid motor is defective control switch of the lid lock is defective cable break plug is loosen between control board to frequency converter control is defective At revision no 1 it could be that the frequency relay is defective cable break plug is loosen between control to frequency converter frequency con
48. verter is defective control is defective At revision no 1 it could be that the frequency relay is defective cable break plug is loosen between control board to frequency converter frequency converter is defective control is defective Short circuit in the frequency converter Frequency converter defective motor defective Brief power failure At revision no 1 it could be that the frequency relay is defective cable break plug is loosen between control board to frequency converter Break resistant is defective the rotor is braked to strong Motor runs hard ventilation is defective frequency converter is not cooled enough Summary of very specific error which should normally not occur No release internal timing error system error reset by watch dog start a trial with direction of rotation error program memory CRC error Overspeed Transmission error firmware error frequency converter us defective Timeout at control unit through the RS232 connection is interrupted RS232 interface Rotor is not allowed in this centrifuge The number of the inserted rotor does not exist in the data record of the firmware It was no rotor installed Transponder in the rotor is defective or missing antenna defective cable break plug is loosen control board defective In rare cases a transponder antenna combination can cause a reduce range that a conversation can t occur There was chosen a program in
49. which a certain rotor is stored but the inserted rotor is another one Control switch of the lid lock is defective cable break plug is loosen between control board to frequency converter control is defective 47 MAINTENANCE 9 Maintenance 91 Maintenance and cleaning 9 1 1 General Care Maintenance of the centrifuge is confined to keeping the rotor the rotor chamber and the rotor accessories clean as well as to regularly lubricating the rotor insert bolts of a swing out rotor if available The most suitable lubricant is the offered HERMLE High EF oil Order no 34 5147 Lubricants containing molycote and graphite are not allowed Please pay special attention to anodized aluminium parts Breakage of rotors can be caused even by slightest damages In case of rotors buckets or tube racks getting in touch with corrosive substances the concerned spots have to be cleaned carefully Corrosive substances are for instance alkalis alkaline soap solutions alkaline amines concentrated acids solutions containing heavy metals water free chlorinated solvents saline solutions e g salt water phenol halogenated hydrocarbons A Cleaning units rotors accessories Turn the device off and disconnect it from the power supply before you begin any cleaning or disinfecting Do not pour liquids into the housing interior Do spray disinfectant on the device Thorough cleaning not only has its purpos

Service Manual for High Speed Centrifuge Z 32 HK

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