prepASH 2xx Service manual
Contents
1. 2 C at 100 C and 16 C at 800 C 7 9 2 Temperature adjustment The temperature adjustment has been performed during the manufacturing of the prepASH in the factory Normally it is not necessary to adjust the prepASH out in the field A CAUTION We strongly recommend to make a temperature adjustment only if you have recognized big differences for the temperature settings during a temperature calibration In this case perform an temperature adjustment to make sure the prepASH is reaching the defined temperature for a measurement within a acceptable range again The temperature adjustment screens looks as follows Mech Calibration Heater Calibration Erase File Qu 4 gt Set T1 Actual T1 Enter reference T1 100 W o0 0 0 Set T2 Actual T2 Enter reference T2 soo W o0 0 0 IXI ss 1 yy al Performing the temperature adjustment in 2 steps as a 2 point adjustment Step 1 at temperature Set T1 e Set the temperature Set T1 for the lower calibration point e g drying temperature e Press to start heating e Wait 30 minutes after the actual temperature Actual T1 has stabilized e Read the temperature of the external thermometer as an average value over about 60 seconds Enter this value as reference at Enter reference T1 e Press to stop the heating Step 2 at temperature Set T2 e Set the temperature Set T for the higher calibration point e g ashing te2. give an ___UserID___ Password level _ PRECISAL PRECISA1 ia x user ID Password und Access Level Supervisor PRECISA PRECISA 0 or User THOMAS 12345 1 MORISSON 56548 0 JONSON JON 0 a To change from one User Account to another or lt lt gt gt lt lt gt gt cr ee to confirm an entry press or User ID Password Level PRECISA1 PRECISA1 Supervisor Save your entries ml s 7 6 Gas adjustment prepASH ID Type Disk User Account Gas Flow 4 gt Choose the gas and press corresponding button Air Gas Air Flow 0 0 I min 02 z Open the valve 3 6 or 3 6 l min N2 3timin 6 min sig A The effectively measured gas flow is indicated on the right in l min Inlet pressure Air 6 bar O2 und N2 3 bar At 3 l min 6 I min Zz Press the zero button if the flow is not 0 0 I min at closed valves 1 in If necessary regulate the flow of the valve right hand side of the prepASH Increase the flow by turning anti clockwise pug Testing the exhaust fan by pressing the Fan button ai to switch on or switch off the exhaust fan E Testing the external outlet for a Pump by pressing the Pump button E to switch on or switch off the Pump connected to the external outlet see also chapter 4 position 13 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340
3. 1 Open the hood from the touchscreen software ESS 2 Unscrew the 2 hexagon bolts in the corners of the cover from below Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 28 3 Close the cover from the touchscreen 4 A Important disconnect the prepASH from the mains 5 Pull the upper cover slightly forwards and tilt it back 6 open the middle back T Da the 8 screws from the back of the gt UP er cover 8 lift the e upper cover and push it to mer CAOR cable isolation 9 remove the upper cover completely 10 Remover the protective plate 12 2 5 Remove hood hotplate Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 29 remove the red cable from the hotplate ground 2 cables and 2 clamp Remove hose fitting with red connecting cable trough the clip unscrew the ends of the heating coil and bend them to the top pliers remove 2 screws from the top of the pneumatic cylinder PN1100 21 7 remove 2 screws from the hotplate hinges PN 340 3046r lift the hotplate carefully 2 person needed don t damage the isolation turn the hood upside down and lay it down with the quartz plate on top ae code a 12 2 6 Uncover isolation heating coil 8 remove the 4 faceplates 340 2023 340 2024 9 remove the heating isolation 340 4013 and the quartz disk 340 4019 10 remove the heating coil don t damage the isolation by pulling out
4. Open the USB Stick gt My Computer and start the printer setup After the installation is finished either you restart the prepASH and the prepASH software will start automatically or you can start it by double click the prepASH Icon on the desktop ae 10 Process gas flow unit See manual 340 8502 option Prozessgase delivered with the process gas flow unit Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 23 11 Terminal 1 A Important disconnect the prepASH from the mains Pull out mains plug 2 open prepASH side walls and front panel 3 open the service cover on the button of the front panel Terminal Open the flash card cover of the right hand site of the terminal f Exchange the flash card delivered with rere i prepASH software B38 ones wane a All calibrations have to be redone Peene OLLI YOCQGES CTONIF Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 24 11 2 Exchange terminal Remove all cable from the terminal Unscrew the two fixation screws around the terminal Exchange the terminal If the old flash card is o k enter the old flash card to the terminal no calibration has to be done If the flash card is exchanged too all calibrations have to be redone ERSRARANAM F aan HEEEEEEEEHEEEE ELE 10 T J COO a uu 1010 COM2 1010 COM1 12 Heating 12 1 Diagnosis 1 check the low
5. Slotted screwdriver No 0 No 5 short Line head Flat wrench No 7 No 12 No 13 No 17 Brush 290 7037 Lubricant PN3950 097 Universal High Performance Molykote BR 2 PLUS For temperature calibration adjustment Thermometer up to 1000 C 5 C with sensor thermocouple lt 3 2mm and length gt 16cm Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 6 4 Instrument overview No Description Crucible Plate holder Turn table Balance pan Touch screen Master switch Maintenance unit with a compressed air connection CO NO OBR WNDN gt Exhaust gas nozzle Manual 350 8138 000a3 Description Process gas flow control Process gas and compressed air connections Inlet for external temperature sensor Electrical power outlet for connection of a scrubber or pump Mains connection cable with connector CEE type 5pole male LAN port USB port Mechanical connection for scrubber Precisa Gravimetrics AG Service manual Series 340 prepASH page 7 The oven can be heated up to 1000 C prepASH has to be cooled down before doing any step of service or repairs Danger Disconnect the ashing device from the mains during all maintenance work pull out the plug and ensure that the device cannot be switched on inadvertently Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 8 5
6. bend them to the top pliers 36 remove 2 screws from the top of the pneumatic cylinder PN1100 217 37 remove 2 screws from the hotplate hinges PN 340 3046r 38 lift the hotplate carefully 2 person needed don t damage the isolation 39 turn the hood upside down and lay it down with the quartz plate on top 13 1 3 Isolation 1 remove the 4 faceplates 340 2023 340 2024 2 remove the heating isolation 340 4013 and the quartz disk 340 4019 13 1 4 Assemble the isolation quartz disk 1 install quartz disk 340 4019 and heating isolation 340 4013 2 install the 4 faceplates 340 2023 340 2024 13 1 5 Assemble hood hotplate turn the hood and fix it to the hotplate hinges PN 340 3046 fix the pneumatic cylinder win PN1100 21 7 fix hose fitting with red connecting cable trough the clip screw the red connecting cable on the clamp on the hotplate ground 2 cables and 2 clamp SOV ee 13 1 6 Assemble upper cover 7 put the upper cover on the hotplate displaced slightly to the front caution cable isolation 8 put the upper cover to the correct position 9 Fix the 8 screws from the back 10 plug in the mains cable and turn on the instrument 11 Open by software and fix the hood 12 turn off prepASH and disconnect from the mains 13 fix the upper cover with 2 screws in the corners from below 14 put the cable ties 15 close the back board 16 remove the balance protection plug and slide in the weighing
7. insert new thermometer lay the cable into the cable duct and fix it with cable ties plug in Thermometer for temperature w N SS calibrate SET ESTES SSE SES BOOP Oe CLL AIS A gt asassssasnaeeeeoooSeo Te seeae Saeeeeeneeoeeo oO es She ShSSeeeeeeeeeee008 COIL Seseeeeeoeese Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 38 zs Si the drive unit a abt tind se Abe aa LATINA i R l h a a on i TILNI hy ri T ie L igin e r 5 coupling ring F d ia T 9 ribbon cable 17 1 1 Disassembling 1 open and fix the hood with the hood locking device A Important disconnect the prepASH from the mains Pull out mains plug 2 3 open prepASH side walls front panel and middle back 4 remove sample plate and weighing pan and fix the red balance protection plug 5 remove carefully the lance 6 unplug on the power board 3 stepping motors M1 M2 M3 45 56 and position switch 1 6 7 open cable duct and disentangle the cables 8 disconnect the ribbon cable from the balance and remove the 4 slotted head screws of the balance mounting part 9 push the isolation carriage to the back lift the stack 10 lift the balance slightly and remove it to the front caution to the stack 11 remove the stack to the bottom 12 remove the isolation carriage to the front 13 remove the axis of rotation open the2 screws at the top of the
8. pan 17 remove the hood locking device 18 plug in the mains cable and turn on the instrument 19 close the side walls Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 33 13 2Exchange lower isolation The cover has to be removed to change the lower isolation 13 2 1 remove upper cover open and fix the hood with the hood locking device remove sample plate and weighing pan and fix the red balance protection plug Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls and front panel open the middle back unscrew the 4 screws in the corners of the cover from below remove the hood locking device and close the hood manually lift the upper cover and push it to the front caution cable isolation remove the upper cover completely Oo OS Sey 13 2 2 Remove hood hotplate 10 remove the red cable from the hotplate ground 2 cables and 2 clamp 11 Remove hose fitting with red connecting cable trough the clip 12 remove 2 screws from the top of the pneumatic cylinder PN1 100 217 13 remove 2 screws from the hotplate hinges PN 340 3046 14 lift the hotplate carefully 2 person needed don t damage the isolation 15 turn the hood upside down and lay it down with the quartz plate on top 13 2 3 Uncover and remove the lower isolations 340 6400 16 remove the two thermocouples 17 remove golf ball from pneumatic cylinder PN3950 012 18 re
9. prepASH page 15 AJA caL The calibration of the balance can be activated directly from the user interface that is accessible for the Supervisor and user by pressing the calibration button 7 7 Balance calibration Precisa PSS Mm ihe Balani a g Calibration Disk User Account Gas Flow Calibrate Balance M lt gt 1 Tare the balance by pressing the T button 2 Start calibration by touching the CAL button CAL The device performs a zero point measurement 0 g flashes i 0 0000g After the zero point measurement the K display flashes the calibration weight 50 g Place the calibration weight on the pan The display flashes R Once the display stops flashing this indicates that the N VA IN E x e E calibration has ended The value of the calibration weight is displayed With the help of Intelligent Calibration Mode ICM the device can detect the size of the calibration weight which makes it possible to perform a calibration with different sized weights in 10 gram increments 7 8 Mechanical calibration Gas Flow Calibrate Balance Mech Calibration Hea 4 gt aa a Ef 990 Ie F i _ iN Horizontal Offset f 36000 cal Se J Calibrate at startup W CAL A i a g Pe lt E io EZ NOTE The small hole in the sample plate must lie to the left of the balance pan refer to figure on the right A CAUTION
10. prepASH page 20 7 12 Quit Only for service Password protected Heater Calibration Erase File Quit KI gt Password i n Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 21 8 Error messages NOTE If any Error appears the first thing you have to try is to restart the prepASH 8 1 Error 1 Interface board Reset The Interface board has made a self reset All the data are deleted gt restart the prepASH and start a new measurement If the Error 1 appears again after the restart gt Contact the Precisa Service 8 2 Error 2 Communication error between Touch panel and Interface board There is no communication between the Touch panel and the Interface board possible There could be different reasons for this problem 1 The wire between the Touch panel and the Interface board is not properly connected gt Reconnect the wire and restart the prepASH 2 The wire between the Touch panel and the Interface board is damaged gt The wire has to be replaced 3 The Interface board was busy and couldn t receive the data from the prepASH gt Restart the prepASH lf the Error appears again gt contact the Precisa Service 8 3 Error 3 Balance error Restart the prepASH gt Switch into the Service Mode gt Go to the menu tab to Calibrate Balance and see what is displayed on the screen If the showed weight is about 0 000g the balan
11. push the isolation carriage to the back lift the stack 11 lift the balance slightly and remove it to the front caution to the stack 12 remove the stack to the bottom ee 14 1 2 Installation 13 insert stack balance ready to hand 14 install the balance lift stack tighten the 4 screws 15 tighten the coupling ring 16 plug in the ribbon cable 17 slide in the weighing pan remove the red protection plug 18 if necessary align the stack with set screws Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 37 15 Exchange the lance 6 caution PNTIOO 058 340 5008 1 5t 440 7047 1 St PNA S0 O66 15t 1 A Important disconnect the prepASH from the mains Pull out mains plug 2 open the middle back 3 open the right side wall 4 remove the tube from the lower connection 5 unscrew the lance from the hotplate 6 pull the lance carefully to the bottom turn it not to crash with the drive unit 7 unscrew the lance fastener 340 5008 and the connection PN 3950 086 8 fix both to the new lance 340 7038 9 insert the lance carefully into the hotplate and fix it 10 connect the tube 16 Replace the thermometer A Important disconnect the prepASH from the mains open prepASH side walls and front panel unplug the thermometer open cable duct T ee cut the cable tie required and disentangle the cables remover the thermometer by turning aed
12. 0 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 30 13 Exchange isolations quartz disk 13 1 Upper isolation drawing 340 8007 340 204 PHIS Get PAI850 O45 Z y t PHRI SDISA PHHOD 074 4 t 140 217 1 Aft P ig B15 TETA maut PERDS Z t a4 D204 q SF PAIGE 217 2 St 340 302 2 S PHT G Tiet 3 Ah DS 2 31 PHTO0 1649 w St 140 4007 13 1 1 Remove upper cover completely 13 1 1 1 Remove upper cover 1 Open the hood from the touchscreen software S 2 Unscrew the 2 hexagon bolts in the corners of the cover from below Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 31 3 Close the cover from the touchscreen 4 A Important disconnect the prepASH from the mains 5 Pull the upper cover slightly forwards and tilt it back 6 open the middle back 7 Unscrew the 8 screws from the back of the upper cover H SS Ae i 8 liftthe upper cover and push it to the front caution cable isolation 9 remove the upper cover completely 1 0 Remover the protective plate 13 1 2 Remove hood hotplate 33 remove the red cable from the hotplate ground 2 cables and 2 clamp 34 Remove hose fitting with red connecting cable trough the clip Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 32 35 unscrew the ends of the heating coil and
13. AA E 13 ha PPAS Ft oe a A oa 13 1 3 prepASH Ok A gt 13 lAs J Gt ne En Roe Re ES eT nn es STD eR ee nen ea 13 RS US ACCOUN aa a A e 14 LO GAS aduStMeEN asesan N 14 LI Balance calpral Oeean E aa 15 126 MecnanicalcalbralON ecuria ATE 15 7 9 Temperature calibration and adjustment cc cccecccecceeceeeseeeeeeeeeseeeeeeseeeeeess 16 7 9 1 TEMPCFatUre CallDFallOn ereire na 16 7 9 2 Temperature adjUStMent ccccccceccsccceeceeceeceeseeeceecueseeeeeeseeesseseesaeeeas 17 7 10 Calibration of the overheat protection temperature SENSOTS cceceeeeeeeeeeees 18 Pak EASING westeaiicatcentiexcindiiveisuiadesteivirsvaeiaesk viagese ieee ee ees 19 EN O a A E a e e ee 20 o ENOL MO S SGO Se E ee en eee re ee ene ere eee tort 21 8 1 Err r 1 Interface DOATG ROS CU eoriet iE ATi 21 8 2 Error 2 Communication error between Touch panel and Interface board 21 Oo EIKO Sr Balance eNO wccantsaucta tl natn a coun dandeaea Mone hantaunteat Seatanaae 21 8 4 Error 4 Communication error between Touch panel and Temperature Module 7018 21 8 5 Error 5 Communication error between Touch panel and Flow Module 7017 21 S EPODA S RES ONA a a NAO 22 9 1 PreDASH SOMWale Uda leioan a E unten eea 22 9 2 Installing a printer on prepASH cc cscssssssccessursssccussureceesursescoursarsceetuussscoussas 22 10 PFOCESS Gas TOWUN acea A 22 11 TEMNA aE A 23 tit Exehange MaS C ard ensa a 23 VEZ Excnange LERMIMAl iceters
14. Identification ID 1 PREPASH 1 ID 2 ID 3 7 3 prepASH Type Info prepASHID Type Disk User Account Gas lt q gt prepASH 229 Power 3 3 kVA Gas on W Output 100 Carbon _ Code 01 CER A piIN Lx Hi 7 4 Disk Info prepASH ID Type Disk User Account Gas F q gt Disk with 19 29 Samples a finj k LiN E Manual 350 8138 000a3 4 page 13 In this register you will find all information on identification and state of calibration of the system and software You do have the possibility to print out this information by pressing the button ry You have the possibility to add identifications to your prepASH e g inventory number number of test equipment division This information will be shown on the reports of the analysis Access for Service Engineer only Password protected For the models prepASH229 and prepASH219 you can switch between the sample disks 19 29 Samples and 12 Samples Exchange of the disc 1 Choose disk in the Pull Down Menu 2 Save your entry by pressing 3 Exchange the turn table Precisa Gravimetrics AG Service manual Series 340 prepASH page 14 7 5 User account Generate new user and supervisor in the register User Account Info prepASH ID Type Disk User Account Gas f 4r oD Press to enter the User Account mode Jie To create change an User Account
15. Make sure that the motor positions are in the start position and that the sample plate is installed correctly the easiest way is to restart the device Adjust the start position with and For that rotation the outer buttons are provided for a fast rough adjustment and the inner buttons for the fine tuning Rotation Offset Correct the rotation of the sample disk until the balance pan lies exactly under the reference hole of the sample disk without crucible Horizontal Offset Correct the position of the balance until the balance pan lies exactly under the reference hole of the sample disk without crucible Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 16 Vertical Offset Correct the height of the sample disk until the bottom of the crucible is positioned 3 mm above the balance pan with crucible NOTE Calibrate at start up must always be activated 7 9 Temperature calibration and adjustment To perform a temperature calibration or adjustment you need a thermometer with a range up to 1000 C and a tolerance of about 5 C The temperature sensor diameter must be less than 3 2 mm the length at least 16 cm Before you start insert the temperature sensor from the back of the prepASH trough the sensor inlet into the sample chamber see also chapter 4 position 11 The insertion depth into chamber is 155 mm 7 9 1 Temperature calibration The temperature calibration
16. Open prepASH 1 A Important Disconnect the prepASH from the mains pull off mains plug 2 side walls remove the 2 valve cover on the right hand site 340 6400 34 remove the 3 screws on each side wall pull the side wall around 1 cm from the device and pull it to the back 3 remove the 2 screws from the support on the front right hand site and swing the front panel out to the left 6 Maintenance The following steps have to be done on every service open the instrument vacuum drive unit lubricate the recirculating ball screws lubricate the linear guidings clean the airing 340 2004 control the filter mat if needed clean or replace it 6 1 cleaning of the housing and the sample chamber The housing can be cleaned on the outside with a damp cloth Clean the sample chamber with a vacuum cleaner after taking out the parts inside sample plate crucible balance pan Take care of the sensitive insulating and heating radiators Avoid damage with the suction tube Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 9 6 2 cleaning of ventilation NOTE The airing has to be cleaned every 6 months to insure sufficient airing of the furnace chamber 6 2 1 Tools Pin type socket wrench width across flats 7 mm Phillips screwdriver 6 2 2 Remove upper cover 1 Open the hood from the touch screen software 2 Unscrew the 2 hexagon bolts in the corners of the cover from below
17. Service manual Series 340 prepASH page 1 prepASH 2xx Service manual Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 2 1 Introduction 4 1 1 General information about the Service MANUAl ccceccceccceeeaeeeeeeeeeeseeeseeeaees 4 2 ke 1 21 Well go UCONN een em nee ee eee ne eee ee PO Pe PP ee or 4 21 General Salety IMSWUCHONS esseci anaE E EOE 4 22 OVMDOIS erena ANNEE EEEE 5 wo Mm FOOLKUMaatE lc Rete ee nane E E 5 4 Instrument overview 1 0 2 ccc cc cec ceca ees eeneeceeceeceeceeceeteeceeseeeeeeeeeaeeseeseeseeseeseeseesueseeseeseeseeeaes 6 S SQM Dre DASE sawsestosswassvooswsnce Yoxkaden teeta a a a 8 IWATA CS sanean a a A 8 6 1 cleaning of the housing and the sample chamber cccecceceseeceeeeeeeeeeeeeaees 8 02 x ClEANINGJOF VENUIANON sesei EE 9 6 2 1 MOONS arrian A E E AAAA 9 6 2 2 REMOVE UPPE COVO erena AA AA R 9 629 leaning TAS GING se seeen E a ee eni 10 6 2 4 Reinstall the upper COVER 0 0 0 cc eccecceccecceeceeceeceeceeceeeeeeaeeeeeseeseeseeceeceeseeseeeaes 10 6 3 Filter mat CleaniNG FEPIACING siztevesevatavossestovevorstovsbouebersborslgesbocabewabesobavebdualeueldee s 10 6 4 Lubricate recirculating ball screws and linear QUuICINGS ccceeeseeeeeeeeeeeeees 11 6 4 1 SOK oraa A E E AAA AAAA 11 04 2 iCatriage ony DPrepPASH229 zrennnenena nna a a a r 12 t Calibrations Conig uratioN Sree E R 12 1 1 INFO erener areenaa AEA E E
18. axis coupling and remove the axis from the top 14 remove the drive unit to the front 4 screws Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 39 17 1 2 Installation A Important disconnect the prepASH from the mains Pull out mains plug Insert the drive unit from the front tighten the 4 screws only slightly gt later positioning Insert axis of rotation and tighten the 2 upper screws on the axis coupling align the drive unit fine positioning with set screws all set screws must be in contact to the plate tighten the 4 slotted head screws insert isolation carriage orientation the V must be visible from the front Insert stack balance ready to hand 21 Install the balance lift stack tighten the 4 screws 22 tighten the coupling ring 23 plug in the ribbon cable 24 slide in the weighing pan remove the red protection plug 25 if necessary align the stack with set screws 26 install lance 2 plug in on the power board 3 stepping motors M1 M2 M3 45 56 and position switch 1 6 close the cable duct Caution M2 must be carried over the duct 28 close the middle back 29 close front panel 30 close side walls 31 mechanical calibration the offsets have to be redeterminded gt 7 8 Mechanical calibration p 15 18 Adjust pneumatic 1 A Important disconnect the prepASH from the mains 2 Check air pressure 6 bar 3 open rig
19. b 3 Close the cover from the touch screen 4 Important disconnect the prepASH from the mains 5 Pull the upper cover slightly forwards and tilt it back i 6 The airing is accessible Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 10 6 2 3 Cleaning the airing 1 Unscrew the airing and clean it mechanically 2 If needed also clean the prepASH side 3 The ceramic tube may be cleaned mechanically 6 2 4 Reinstall the upper cover 4 Tilt the upper cover down on to the hood Plug in the mains cable and turn on the instrument Open the hood from the software Fix the upper cover on to the hood hexagon bolts The device is now ready for use PrO 6 3 Filter mat cleaning replacing 340 4007 340 7016 1 St 440 2005 1 St A Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls and front panel Loosen perforated plate remove the 2 screws on the top loosen the 2 lower screws remove the mat clean or replace the map put the mat from the top under the perforated plate close the device oo oS Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 11 6 4 Lubricate recirculating ball screws and linear guidings 1 A Important disconnect the prepASH from the mains Pull out mains plug 2 open prepASH side walls and middle back 6 4 1 Stroke Fle rii 5 p l
20. ce is working properly and you can start a new run If another information is shown on the display the balance causes the error 8 4 Error 4 Communication error between Touch panel and Temperature Module 7018 There is no communication between the Touch panel and the 7018 Module possible There could be different reasons for this problem 1 The wire between the Touch panel and the Module is not properly connected gt Reconnect the wire and restart the prepASH 2 The wire between the Touch panel and the Module is damaged gt The wire has to be replaced 3 The Module did shutdown autoaticaly gt Restart the prepASH lf the Error appears again gt contact the Precisa Service 8 5 Error 5 Communication error between Touch panel and Flow Module 7017 There is no communication between the Touch panel and the 7017 Module possible There could be different reasons for this problem 1 The wire between the Touch panel and the Module is not properly connected gt Reconnect the wire and restart the prepASH 2 The wire between the Touch panel and the Module is damaged gt The wire has to be replaced 3 The Module did shutdown himself gt Restart the prepASH lf the Error appears again gt contact the Precisa Service Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 22 9 PrepASH Software 9 1 PrepASH software upda
21. d power supply Never touch any parts under voltage This may lead to an electric shock which may lead to serious injury or even death The instrument may only be operated using the original power cord supplied with a protective earth conductor Never run the instrument with a damaged power cord Voltage and frequency must be in accordance to the type label Safety conscious work Follow all safety instructions in the manual all rules for accident prevention and all rules of technique Follow the local safety rules Fundamental rules of work with chemicals have to be followed e g safety glasses protective gloves etc Exhaust gases The exhaust gas hose must be fed into an exhaust system Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 5 Maintenance and Service Disconnect the prepASH from the mains during all maintenance work pull out the plug and ensure that the device cannot be switched on inadvertently Adjustment work under voltage must only be done by a specialist who is aware of that danger prepASH has to be cooled down before maintenance work Fuse Under no circumstances should you use other fuses or attempt to bridge the fuse Automatic circuit To be operated from the back breaker Power board 2 x 4 A slow blow fuse 2 2 Symbols 23 gt Tips and important rules 3 Tool kit material Allen key 3 mm 5 mm Socket wrench No 7 Phillips screwdriver
22. eeeeeeeeeeeeeeeeeeeaaes 32 13 1 5 Assemble hood hotplate cc cccccseccseeceeeceeeceeeeeseeseeeseeeeeeeseeeeeeenes 32 131 6 ASSEMDIEUDDEF COVED vaisisievsidsareentduwidenidendausbieelsveinucaieahiecriacwiaumianiianenueicels 32 192 Exchange IOWEF ISOIAU OM een thie dnaah eh daatdedddaadiedidunicedieenicedoeeas 33 aF eOe WCCO Cra ceaercatesiecareiteieaceteviatutetinuesneeduesacandunndavedevusededuvetintessdadeens 33 132 2 Remove MOOG MOlDIALS keno A 33 13 2 3 Uncover and remove the lower isolations 340 6400 ccccecceeeeeeeee ee 33 13 24 sASSEMDIC ING olallONS eie rper E IE EREE E ETEN aS 34 13 2 5 Assemble the hood hotplate ec ccceceeeceeeceeeeeeeeeeseeeseeeseeeseeeseeeaes 34 13 2 6 Assemble upper COVED s ssnsnsnnensnrnnnrsirnrnrersrrnrrrnrrirrrnrnrrrrnrnrsrrnrnrnrnrrnrnrnene 35 14 EXGCNANGE NG StACK vseiayevsocvsscesonvarersueusgerdeceagerscevasevdeuasevhreusseueteuacevetauaneuatewniaeetauals 36 t DRASS MOIN reen a eumesedemesaudeualetedsdinte 36 ff MSAA ena e E 36 15 X Change Ine lance curiae aaa aes 3 16 Replace the thermometer ccccccceccscceeceeceeceeseeseeceeceeeeeeaeeseeeeeseeeeeseeseeseeseeeas 37 17 EXCMNANGe Me drive UN micistciccalasetancdatcaarniatsissatuacteratadeast tudsdcecludsdasciaisensaeaadidadians 38 Tell DisassemDING roires edn sacecsedere sean iecaseancacececnieas sean tance aecaceseactcacats 38 ete Aid SteNLlON 2 4 ord ecsee acta acaaaananianaoaaiananeamearse
23. er pneumatic switch prepASH is only heating with the hood closed i remove the left side wall ii the hood closed the lower pneumatic switch must shine iii check the position 48 mm hinge lower border iv exchange switch 2 check the heating i Resistance at power board unplug the plug 76 77 78 measure resistance between 76 78 16 5 Q 12 2 Remove upper cover 12 2 1 Tools Pin type socket wrench width across flats 7 mm Phillips screwdriver Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 25 12 2 2 Remove upper cover 1 Open the hood from the touch screen software 2 Unscrew the 2 hexagon bolts in the corners of the cover from below 3 Close the cover from the touchscreen 4 A Important disconnect the prepASH from the mains 5 Pull the upper cover slightly forwards and tilt it back 6 remove the protective shield The clamp for the heating coil is accessible Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 26 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 27 12 2 3 Change heating coil 340 8007 140 2004 PHIS T PAIeS 0 05 E st t PRGAY5SO 058 PRON o28 440 72 1 5t PRICES TETA ae PERDS Z t PHT GTie 3 St Ah DS 2 At PHTO0 169 W St 140 4007 z Sf an ASC AD 1 5t 12 2 4 Remove upper cover completely 12 2 4 1 Remove upper cover
24. han 2 between the effective and the target temperature Attention You need a lot of time for the adjustment you have to cool down the prepASH after every try E g Start the adjustment with 5 if the effective temperature is 2 C over the target temperature at 100 C Heater power adjustment Password 7 10 Calibration of the overheat protection temperature sensor e open the two side walls and the front desk of prepASH to access to the print for calibration e Heat up prepASH to 800 C in heating program or when calibrating at 800 C e after the temperature has reached the temperature and has stabilized at 800 C push the switch on the temperature sensor print for 5 s until the signal sounds Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 19 calibrate 6002 10 80 e The sensor is calibrated automatically while the signal slowly beeping e Hold the switch again for 10 s until the signal stops e The temperature sensor is calibrated 7 11 Erase file Mech Calibration Heater Calibration Erase File Qu gt Delete sample lists X J Delete methods Free disk space E T 0 era bees Wen a a oan lst Rasel RS acct ha a Delete results x cip r y LERSE Security query Ed Press to confirm the file to delete File Milk log Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340
25. ht side wall 4 open close the hood manually 5 adjust throttle valve on the top 1 this is only working when disconnected from mains 6 plug in the mains cable and turn on the instrument 7 open hood Software and adjust throttle valve on the front 2 opening time ca 12 s 8 close hood Software and adjust throttle valve on the back 3 closing time ca 12 s Manual 350 8138 000a3 Precisa Gravimetrics AG
26. iccotevonseatarevensteustecaleveimabousvensbouabecobseesmaborewonsseeebeveldeetouale 24 12 PS ULI cstecica ccc dicanieeneea ited needa A 24 12E BaO Sci ecaestecactcitscnctrastcera nets sin teense chat E E asedaende 24 122 TREIMOVE UD DEI COVO uir a a aA A AAA S 24 2 TOO EEE 24 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 3 i222 REMOVE UPPE COVE cri ye earner 20 12 3 Change heating Coil 340 8007 ccc ccc eccceeeeeeceeeseeece cece eeseesauecaeesaeeseeeaes 27 12 3 1 Remove upper cover Completely c cccccccecsecceceeeceeceeseeeeeseeeeeseeeeesaess 2 12 32 Remove Nood MOUDI AC ecserin E 28 12 93 93 Uncover ISOlATION MNEALUING COM soprssrrrenene enaA aR 29 12 3 4 Install isolation heating coil ccc cccc cece eeeceeeceeeseeeeeeeeeeeseeseeeeeeeseeseeeaes 29 12 3 5 Assemble hood hotplate ccc ccccseccseeceeeceeeseeeseeeseeeaeeseeeseeeseeeaeesaes 29 12 9 0 ASSEMDIG UDDEF COVER vasavacarnzavaravevavnecvarascavens were wine daakaldiventedaaatacvuruae 29 13 Exchange ISOlatlonS QUaMZ diSK x srscacn stant att outa eara 30 13 1 Upper isolation drawing 340 8007 cccccccccceccsecceseseeeseeeseeeseeeeeeseeeseeesaeees 30 13 1 1 Remove upper cover Completely cccccccccecsececeeeeeeceeceeseeeeeeeeseeseesaees 30 19 f2 Remove Nood NO DIALE kreesen 31 o ASAOS EA 32 13 1 4 Assemble the isolation quartz ISK ccccccceccseeeeeeeeeceeee
27. is only to verify the temperature adjustment of the prepASH In other words to verify the prepASH is reaching the defined temperature for a measurement within a acceptable range of 2 of the defined temperature If the values are out of the this range you need to adjust the prepASH with a temperature adjustment The temperature calibration is performed similar to a normal drying and ashing procedure Therefore you have to define a method with 2 temperatures where you like to verify the adjustment The original factory adjustment and calibration has been made at 100 C and 800 C so we recommend to use the same temperatures But if you are working mainly with other temperatures e g 105 C and 550 C you can modify the procedure accordingly Make sure the prepASH has at least 30 minutes time to stabilize the temperature on each point 1 Define the method with 2 temperatures T1 and T2 The factory calibration method for T1 100 C and T2 800 C is 2 min to 100 C 40 min at 100 C 15 min to 800 C and 40 min at 800 C z110 8 6 4 2 0 uu seq HK Co lt SS _EIE__ES_ EET EE Ee 00 00 00 10 00 20 00 30 00 40 00 50 01 00 01 10 01 20 01 37 i lt lt EE gt gt min 40 C 800 Gas Flow 0 l min AS Pump Result Stop 2 Start the calibration After defining the method start the calibration like a normal measurement You have to work without the t
28. l l h M linear guidings Te ASA e 10 172 mf h TaN recirculating ball screw ot lubricate the upper part recirculating lubricate the two linear guidings GA gt Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 12 6 4 2 carriage only prepASH229 6 Lubricate the 2 linear guidings ve Lubricate recirculating ball screw 7 Calibrations Configurations From the user interface of prepASH software you can go directly to the service mode Only Supervisor have access to the service mode Precisa Precisa E The Balance of Quality E Eer E The Balance of Quality m S Supervisor User Enter into the calibration and configuration part from the user interface Click on the register needed The balance calibration is accessible directly for the user interface for the user too All other calibrations are reserved to supervisor and service Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH 7 1 INFO Info prepASH ID Type Disk User Account Gast lt 4 gt Balance Calibration Temperature Calibration 03 15 PM 11 27 AM 01 26 09 01 26 09 Operator BC PRECISA1 Operator TC PRECISA1 prepASH Software Balance Interface 2 5 09 NO1 0190 P13 V1 2 A1 1 0 8 3121 52 S N 3400020 IP 192 168 0 79 Ea fin i_ amp k _ E 7 2 PrepASH ID Info prepASHID Type Disk User Account Gas F lt q gt prepASH
29. move the decorative metal 340 7014 by opening the 4 screws 19 remove the lance fragile handle with care gt 15 Exchange the lance p 37 20 remove front sheet metal Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 34 21 Lateral metals a if only the lateral isolations have to be replaced it is sufficient to remove the metals from the base plate b if the isolation at the bottom has to be replaced the metals have to be removed completely remove the rotation axis open the 2 screws at the top of the axis coupling and remove the axis from the top 440 4 14 440 15 440 3008 ie 4 St PASSS y 30 i 4 1 5f 22 remove isolations bottom isolation caution to the stack and the temperature sensor 13 2 4 Assemble the isolations 23 insert the isolations bottom isolation caution to the stack and the temperature sensor 24 fix the sheet metal PN1100 169 25 if necessary install the axis of rotation carefully align the axis when tightening the screws 26 install the lance 2 put up the decorative metal and fix it with the 4 screws 28 screw on the golf ball to the pneumatic cylinder 13 2 5 Assemble the hood hotplate 29 turn the hood and fix it to the hotplate hinges PN 340 3046 30 screw on the pneumatic cylinders PN1100 21 7 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 35 31 fix h
30. mperature e Press io start heating e Wait 30 minutes after the actual temperature Actual T2 has stabilized e Read the temperature of the external thermometer as an average value over about 60 seconds Enter this value as reference at Enter reference T2 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 18 e Press to stop the heating e Save the new adjustment EN CAUTION It is absolutely necessary to perform after the temperature adjustment a temperature calibration to verify the adjustment has been successful If the temperature calibration is not according the limits repeat the temperature adjustment Reset adjustment data RST Use this button to reset the temperature adjustment Only use this function before temperature adjustment if the temperature values are totally out of range You don t need this function for a normal temperature adjustment After reset do the temperature adjustment as illustrated above Adjust heater Hi Access for Service Engineer only Password protected With the heater power adjustment you have the possibility to increase decrease the power for the temperatures up to 250 C This is helpful if you have a big temperature overshoot at the beginning of a 2 2 i t 5 6 e 0 amp 2 a a a method step The heater power adjustment doesn t affect the temperature adjustment Only use this function if there is a difference of more t
31. ncsearsesceencueesseeresaasanannaeoaaanenean 39 TO AUS DMC UMIAMIC ie anrr AA T 39 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 4 1 Introduction 1 1 General information about the service manual This service manual is valid for the drying and ashing system prepASH xxx The manufacture exclude liability for damages which result from inadequate maintenance nonconforming location wrong or non competent installation of the instrument modification without authority or neglecting recommendations using accessories spare parts other when recommended or delivered by manufacture This service manual contains fundamental instructions to be followed before doing any service or reparation step This service manual has to be read and understood by everybody doing any of the following work 2 Safety instructions 2 1 General safety instructions Environmental conditions Temperature 5 C 35 C Relative humidity 25 85 non condensing not corrosive Location and ventilation Only set prepASH up in a room which is adequately spacious dry and well ventilated Only operate the device upright on its stand and on a stable level base Observe the following safe distances from neighbouring devices equipment and walls space of at least 15 cm around the sides and at least 1 5 m from the ceiling The exhaust gas hose must be fed into an exhaust system Power cord an
32. ose fitting with red connecting cable trough the clip 32 screw the red connecting cable on the clamp on the hotplate ground 2 cables and 2 clamp 13 2 6 Assemble upper cover 33 34 put the upper cover on the hotplate displaced slightly to the front caution cable isolation put the upper cover to the correct position plug in the mains cable and turn on the instrument Open by software and fix the hood turn off prepASH and disconnect from the mains fix the upper cover with 4 screws in the corners from below put the cable ties close the back board remove the balance protection plug and slide in the weighing pan remove the hood locking device AN suc in the mains cable and turn on the instrument Close the side walls mechanical calibration gt 7 8 Mechanical calibration p 15 in case the rotation axis has been removed the offsets have to be redetermined Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 36 bese siciaely tite te tite 14 1 1 Disassembling 4 open and fix the hood with the hood locking device A Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls and front panel remove sample plate and weighing pan and fix the red balance protection plug loosen coupling ring of the stack disconnect the ribbon cable from the balance and remove the 4 hexagonal screws of the balance mounting part 10
33. te 1 Save the file prepASH exe on an USB Stick 2 Quit the prepASH software Change to the Service Mode gt Go in the menu tab to Quit gt Insert 98180 in the Password box gt Press the ok button Disk User Account Info Type Erase File Quit 4 gt Password E 3 Insert the USB Stick in the prepASH 4 Open the USB Stick gt double click on My Computer 5 Replace the file prepASH exe that is on the desktop with the prepASH exe that is on the USB Stick Now the software is updated Either you restart the prepASH and the prepASH software will start automatically or you can start it by double click the prepASH Icon on the desktop 9 2 Installing a printer on prepASH To install a printer on a prepASH you need the specific driver of your printer for Windows XP Either you already have the driver on a CD or you have to download it from the homepage of the printer s producer 1 Quit the prepASH software Change to the Service Mode gt Go in the menu tab to Quit gt Insert 98180 in the Password gt Press the ok button 2 Now you are on the Windows Desktop and you can install the printer on the same way like on a PC The only difference is that you don t have a CD drive Because of this you have to copy the printer driver on a USB Stick Copy your printer driver on a USB Stick Insert the USB Stick in the prepASH
34. the lose ends 12 2 7 Install isolation heating coil 11 Insert the heating coil 340 22050 into the spiral of the isolation the heating coil is delivered stretched buckled outer spiral longer part 12 insert the lose ends of the heating coil carefully into the upper isolation 13 install quartz disk 340 4019 and heating isolation 340 4013 14 install the 4 faceplates 340 2023 340 2024 12 2 8 Assemble hood hotplate 15 turn the hood and fix it to the hotplate hinges PN 340 3046 16 fix the pneumatic cylinder win PN1100 217 17 bend the lose ends of the heating coil and screw them on the clamp 18 fix hose fitting with red connecting cable trough the clip 19 screw the red connecting cable on the clamp on the hotplate ground 2 cables and 2 clamp 12 2 9 Assemble upper cover 20 put the upper cover on the hotplate displaced slightly to the front caution cable isolation 21 put the upper cover to the correct position 22 Fix the 8 screws from the back 23 plug in the mains cable and turn on the instrument 24 Open by software and fix the hood 25 turn off prepASH and disconnect from the mains 26 fix the upper cover with 2 screws in the corners from below 2 put the cable ties 28 close the back board 29 remove the balance protection plug and slide in the weighing pan 30 remove the hood locking device Ol plug in the mains cable and turn on the instrument 32 close the side walls Manual 35
35. urn table crucibles and samples therefore use the tare mode Glow the crucibles for the weighing in refer to the operation manual for further information Make sure the external reference temperature sensor in inserted from the back of the prepASH 3 Measure the real temperature at T1 According to your method verify the temperature of the external sensor versus the set temperature of you method as follows e Wait until about 5 minutes before the end of the stabilization phase not less than 30minutes of the first temperature will finish e Read the temperature of the external thermometer as an average value over about 60 seconds and note this temperature as real temperature TR2 4 Measure the real temperature at T2 Manual 350 8138 000a3 Precisa Gravimetrics AG Service manual Series 340 prepASH page 17 According to your method verify the temperature of the external sensor versus the set temperature of you method as follows e Wait until about 5 minutes before the end of the stabilization phase not less than 30minutes of the second temperature will finish e Read the temperature of the external thermometer as an average value over about 60 seconds and note this temperature as real temperature TR2 5 Verify the temperature T1 and T2 with the real temperature TR1 and TR2 The difference between T1 and TR1 as well as between T2 and TR2 should not exceed the specified limits of 2 of the temperature T1 or T2 e g
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