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Service manual - Serie 340 - prepASH
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1. it can be opened using the next side r Calibration of balance 0 0000g El Sep gt 3 tare the balance with I 4 calibrate with Cal Intelligent Calibration Mode 17 Gas adjustment and hood control T 1 Open the service program password 98180 2 With the blue flash to the right until Adjustment of gas Adjustment of gas und control of cover Air Lk HE a bi G 0 0 min mm j min ime after which the Cover Is opened automatically 80min I I tn Gas adjustment 1 Select the process gas Inlet pressure Air 6 bar O2 and N2 3 bar 2 open the valve by touching the corresponding switch surface The effectively measured gas flow is indicated on the right 3 If necessary regulate the flow of the valve Increase flow by turning anti clockwise Testing the Exhaust Fan Hood opening time The program allows the user to select the temperature at which the hood is half opened after the analysis Here the user can program the time interval between half and fully opened hood Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 28 Heating power control Ee 1 Open service program Passwort 98180 2 With the blue flash to the right until System parameter 3 The setting must me as shown below exept Japn 200 V Power output and Beamer energy 2425 W oystem parameters Aiflow at 54 UI min Upswing bo gilem TC Power out
2. remove 2 screws from the hotplate hinges PN 340 3046 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 Uncover and remove the lower isolations 340 6400 remove golf ball from pneumatic cylinder PN3950 01 2 remove the decorative metal 840 7014 by opening the 4 screws Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 19 37 remove the lance fragile handle with care gt 10 Exchange the lance p 22 38 remove front sheet metal 39 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 PHASSL 15 440 3008 1 St 440 3008 1 AT 40 remove isolations bottom isolation caution to the stack and the temperature sensor Assemble the isolations 41 insert the isolations bottom isolation caution to the stack and the temperature sensor 42 fix the sheet metal PN1100 169 43 if necessary install the axis of rotation carefully align the axis when tightening the screws 44 install the lance Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 3
3. 40 prepASH page 20 45 46 47 screw on the pneumatic cylinders PN1100 217 49 50 51 52 53 put up the decorative metal and fix it with the 4 screws screw on the golf ball to the pneumatic cylinder Assemble the hood hotplate turn the hood and fix it to the hotplate hinges PN 340 3046 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 Assemble upper cover and crush protection put the upper cover on the hotplate displaced slightly to the front caution cable isolation pull the crush protection cables through the tubular cable protection e g with aid of a wire from below 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 screw the cables of the crush protection on the plug and plug it in to the power board Pos 7 8 put the cable ties close the back board remove the balance protection plug and slide in the weighing pan remove the hood locking device L Wi in the mains cable and turn on the instrument check the crush protection Close the side walls mechanical calibration gt 19 Mechanical Calibration p 29 in case the rotation axis has been removed the offsets have to be rede
4. Service manual Serie 340 prepASH page orepASH 129 Service Manual Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG 1 Service manual Serie 340 prepASH page 2 UA EEOGIBIC LO EE 4 11 General information about the service manual 4 2 SEET HEH eebe 4 2 1 Generatl safety le te ele E 4 22 DVIMBOIS siais i ias i ai a a ia i i a eee a a ai 5 25 UNSLEUMENU OVEIVIEW 12 ais aa aa tais ia aaa as i a as a as a S a renner rere 6 Se Reie Bin E EE 6 5 eh BIEDAS El ats aiskiai a aa a a i aa a a aa 7 O MAN En te 7 C e Te Ee ea or PP rr 8 ROMOV ele COV EE 8 Assemble upper cover and crush protection aaa a aaaaaaaaaaa aaa aaa aa saaa aaa aaa 8 62 FIermat ClEANING FEPlAGING EE 9 6 3 Lubricate recirculating ball screws and linear guidingS ccccceessteeeeeseeeeeeeeees 10 SMOKE oaa E 10 SN e 11 Ds eA LMI WEE 12 7 1 Riet e SIS E ansoenidd O O ees 12 7 2 Remove upper cover overheating protection switch PN 3950 056 12 7 3 Change heating coil GA0 200 ee 13 Remove UD DEN COV CP g T 13 Remove Nood Age e EE 14 Uncover isolation heating Co 14 Install isolation heating Dee UE 14 Assemble MOOG HOLDIALS iii a ai iais i i ai a yidad eles 14 Assemble upper cover and crush protection aaa a aaaea aa aaanaaa aaa aaaa saaa saaa 15 8 ExXENand ISOlAlGNS AUAFIZ ICIS Ke asis iai sias i i sai a Ia ii as 16 8 1 Upper isolation 840 4013 drawing 2340 2007 16 REMOVE UDDEF COV CF wacicuicteintetixrec
5. Sr 15 Exchange Terminal Disassembly S 7203 1 St 2AU 7204 SC ae 22 D DNTIL 061 A Sr A 340 2049 1751 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 26 Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls and front panel screw off the desk cover 340 2049 from outside front bottom 1 2 J 4 2 unplug the ribbon cables E1 and G1 pull the flash card to the bottom unplug cables F1 H1 and 11 14 power unscrew the terminal 4 screws with springs Ge 9 detach slowly the front foil Caution hold the terminal 10 remove terminal don t lose the springs Assembly 11 remove lamination sheet from new terminal 12 insert terminal from the back 13 Fix the terminal with 4 screws springs Tighten the screws until the touch is even with the desk 14 plug in F1 H1 and 11 14 power 15 insert flash card 16 plug in ribbon cables E1 and G1 17 fix the flash card with 3 brass screws 18 install the desk cover 19 close prepASH and turn it on gt terminal shines 20 stick the front foil at first remove the protection film only at the left hand side The shining terminal helps to align Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 27 16 Balance Calibration g 1 go into the service program password 98180 2 ifthe hood is closed
6. VW 17 V iN au a linear guidings 1950 095 2 AE i 100 72 A ke GEET SV recirculating ball 5028 bei A screw KT 3 Turn the stroke drive manually right to the top cogwheel resp driven belt 4 lubricate the upper part recirculatin 5 lubricate the two linear guidings PUNT pest LET A L i i CN L r p K Ta Fei Tel sai r e Sa A ri i A LN i Lp d a F ez Agang T js Liss Bee pe z EES af oP We HE T uo 3 a e H Sieg P a z Ki enga elen en a S AN SH m 2 J il f H L i Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 11 carriage 6 Lubricate the 2 linear guidings Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 12 7 Heating 7 1 Diagnosis 1 check the lower 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 50 li Measure resistance at the clamp of the heating coil for this the upper cover has to be removed check the overheating protection switch exchange the heating coil 7 2 Remove upper cover overheating protection switch PN 3950 056 1 open and fix the hood wi
7. am m Baudrate kEd t pH t 576 f 1152 220 4 Enlarge the window with gt gt gt La 5 Choose Einstellungen beibehalten keep settings not to loose the settings offsets heating parameter calibrations Cevicon Download Tool 3 3 c Quelle PrepA H 01 rom 1 Statys Verbindung besteht K ea SE EA a A SIR Sand an GF tor Panel BasicPanel Flashtyp B12kE RomEeleg RamEeleg Ende Firmware Firmware Merion T16 Baudrate KB f 526 f 1152 2504 neue Firmware Sec A Flash Card en BA EEPROM 7 Dateiname Gree Erstelt LA Data lt DIR gt 25 05 2004 08 25 44 LA Methods lt DIR gt 25 05 2004 08 25 44 E tomb 7 Fo ER A Flash Card EH Data Methods 6 click on Ubertragen transmit 7 After the software has been uploaded close the tool with end and ja und disconnect the prepASH 8 prepASH has to be restarted main switch off on Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG
8. an remove the red protection plug If necessary align the stack with set screws install lance 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 d uct 28 close the middle back 29 close front panel 30 close side walls 31 mechanical calibration the offsets have to be redeterminded 19 Mechanical Calibration p 29 13 adjust pneumatic 1 1 AN Important disconnect the prepASH from the mains 2 Check air pressure 6 bar 3 open right 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 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 25 14 Adjust crush protection 1 open side walls instrument on AN 2 positioning of the magnetic switch in such a way that crush protection for fingers is warranted the hood closes without error message if nothing is in between 440 5045 2 SI PN1100 118 2 Sr PN1500 0719 4 St 440 4000 O St 440 2011 440 7008 Aot 15t PN3950 070 340 7009 2 i 1
9. ble and turn on the instrument check the crush protection Close the side walls Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 16 8 Exchange isolations quartz disk 8 1 Upper isolation 340 4013 drawing 340 8007 140 2004 lge Be PH3450 005 KS Cat PRA I 0 036 NO 034 440 202 4 At 1 St PRIDE 15 Kat HIH Hi r PERDS 24D 2023 q BI HN Zi Z t 340 302 Z Sr PAG Ti 2 A At Za DS ih 2 3i PHTO0 1649 BA 140 4007 3240 4019 1 At 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 take out the plug of the crush protection on the power board Pos7 8 unscrew the cables from the plug and remove cable ties 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 10 pull up the crush protection cables 11 remove the upper cover completely SLO eae T o B A Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 17 sae a L Remove hood hotplate remove the red cable from the hotplate ground 2 cables and 2 clamp Re
10. erent aa ia Ba a a o i 29 20 Screen settings Languague selechon a aaaaaaaaaeaaaaaeaaaaa ease saaa sasas 30 21 FOMA ts iii sc a ni ia a i a i a a a aa 31 22 OTN AS UDE E E 32 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 4 1 Introduction 1 1 General information about the service manual 1 This service manual is valid for the drying and ashing system prepASH 129 2 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 3 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 Generatl safety instructions Environmental conditions Temperature 5 C 35 C Relative humidity 25 85 non condensing not corrosiv 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
11. herwise the previously valid settings will remain active Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 31 21 Formatting New flash cards have to be formated The format page is opened by touching the switch surface of the start page On this page it is lt possible to format optimise or erase the storage mode Eeprom and Flash Card TTT La en EI L LCC CF FL OL a i EE en Ga a age iai eebe te AE rt E d r e s Methods Usage Erase sect Progress D 20 40 60 80 100 Format To format the storage mode H NOTE After formatting all data are lost You are requested to confim Optimize If there is any indication in the area Erasible Sectors the data can be re arranged according to available storage space XI Erases the highlighted data Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 32 22 Software update 1 Connect the PC to the prepASH com with a Zero Modem Cable prepASH has to be switched on 2 start the download tool ceLoad exe gt the prepASH screen will turn black as soon as the connection exists Verbindung besteht 3 Quelle Source Select the Software File Cevicon Download Tool 3 3 c Quelle prepASH 01 irom m bertragen Status Verbindung besteht mit Terminal Stand State Com Fort f Comi E ome Com eon para WEE P f Comb f L
12. least 1 5 m from the ceiling The exhaust gas hose must be fed into an exhaust system Power cord and 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 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 5 Maintenance and Service 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 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 brige the fuse Automatic circuit To be operated from the back breaker Power board 2X4A Mitteltrage Cleaning The housing ca
13. longer part insert the lose ends of the heating coil carefully into the upper isolation install quartz disk 340 4019 and heating isolation 840 4013 install the 4 faceplates 340 2023 340 2024 Assemble hood hotplate turn the hood and fix it to the hotplate hinges PN 340 3046 fix the pneumatic cylinder win PN1100 21 7 bend the lose ends of the heating coil and screw them on the clamp 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 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 15 31 32 33 Assemble upper cover and crush protection put the upper cover on the hotplate displaced slightly to the front caution cable isolation pull the crush protection cables through the tubular cable protection e g with aid of a wire from below 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 screw the cables of the crush protection on the plug and plug it in to the power board Pos 7 8 put the cable ties close the back board remove the balance protection plug and slide in the weighing pan remove the hood locking device plug in the mains ca
14. move hose fitting with red connecting cable trough the clip remove 2 screws from the top of the pneumatic cylinder PN1100 217 remove 2 screws from the hotplate hinges PN 340 3046 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 Isolation remove the 4 faceplates 340 2023 340 2024 remove the heating isolation 840 4013 and the quartz disk 340 4019 Assemble the isolation guartz disk install quartz disk 840 4019 and heating isolation 840 4013 install the 4 faceplates 840 2023 340 2024 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 Assemble upper cover and crush protection put the upper cover on the hotplate displaced slightly to the front caution cable isolation pull the crush protection cables through the tubular cable protection e g with aid of a wire from below 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 screw the cables of the crush protection on the pl
15. n 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 2 2 Symbols Danger voltage Caution hot surface Tips and important rules Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 6 3 Instrument overview A The oven can be heated up to 1000 C AN 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 4 Tool kit material Allen key 3mm 5mm Socket wrench No 7 Phillips screwdriver 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 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 7 5 Open prepASH B 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 fron
16. n the middle back take out the plug of the crush protection on the power board Pos7 8 unscrew the cables from the plug and remove cable ties 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 10 pull up the crush protection cables 11 remove the upper cover completely Sa O B A Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 14 Remove hood hotplate 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 Uncover isolation heating coil remove the 4 faceplates 340 2023 340 2024 remove the heating isolation 340 4013 and the quartz disk 840 4019 remove the heating coil don t damage the isolation by pulling out the lose ends Install isolation heating coil Insert the heating coil 840 22050 into the spiral of the isolation the heating coil is delivered stretched buckled outer spiral
17. nnect the prepASH from the mains Pull out mains plug open the middle back open the right side wall remove the tube from the lower connection unscrew the lance from the hotplate pull the lance carefully to the bottom turn it not to crash with the drive unit unscrew the lance fastener 840 5008 and the connection PN 3950 086 fix both to the new lance 340 7038 Insert the lance carefully into the hotplate and fix it 0 connect the tube mui L a sg 11 Replace the thermometer Important disconnect the prepASH from the mains open prepASH side walls and front panel unplug the thermometer temperature board front panel open cable duct cut the cable tie required and disentangle the cables remover the thermometer by turning insert new thermometer lay the cable into the cable duct and fix it with cable ties plug in at the temperature board I L o Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 23 12 Exchange the drive unit BS si Sr pm e me Se z S e 5 coupling ring 9 ribbon cable 9 slotted head screws 15 remove drive unit BE 7 tS Disassembling open and fix the hood with the hood locking device zech Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls front panel and middle back remove sample plate and weighing pan and fix the red balance protection plug
18. p calibrating the horizontal and vertical offset until the valance pan is located concentrically in the hole of the sample plate viewed from above 6 set horizontal offset ssspace between crucible and weighing pan about 3 mm 7 8 the new settings are stored by leaving the page to the right of the left Calibrate on start up must be activated T 17 C UU limin Rotation offset lt Du Horizontal offset lt a B9221 Vertical offset lt br Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 30 20 Screen settings Languague selection 1 Open screen settings l 2 enter password Service 98180 T 20 0C G UU Um Date Contrast value 4052004 63 Time 15 07 05 H ay 3 Date Time The date is entered in the format dd mm yyyy the time in the format hh mm ss 4 Beep Buzzer The accoustic signal can be switched off using the switch surface Buzzer 5 Contrast The screen contrast is adjusted to the light conditions using the slide switch 6 Language Select language by touching appropriate flag 7 creen calibration 8 Calibrate the Touch Screen using 9 Follow the instructions on the screen 10 Touch each cross until it fades away By doing this you are selecting the center and four corner points of the screen Do not interrupt the calibration before complete 11 Save Changes in the screen settings must be saved ot
19. put 6200 Watt Beamer energy 5200 Watt Control factor P po Control factor D po bal ed 18 Temperature calibration 1 Open service program Passwort 98180 2 With the blue flash to the right until Temperature calibration r Calibration of temperature sensor 100 C eja Malo Remove sample plate Insert the reference thermometer from the back remove the screw Depth of insertion 155 mm Set the temperature to 100 C U T to prc Touch on the coil icon to start the heating Wait until heated up to 100 and temperature is stable Read the temperature from the reference thermometer and typ it in 0 Apply lower temperature ao ae pE w Set the temperature to 800 C ust T to prc Wait until heated up to 800 and temperature is stable Read the temperature from the reference thermometer and typ it in Apply upper temperature Save with the saving icon without saving the new calibration is lost when leving the page and the last calibration is still valid Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 29 19 Mechanical Calibration AMS Restart prepASH off on AS Open service program Passwort 98180 With the blue flash to the right until mechanical calibration Carfully place the sample plate on the rotary axis Note The small hole in the sample plate must lie to the left of the balance pan refer to figure below Kee
20. remove carefully the lance unplug on the power board 3 stepping motors M1 M2 M3 45 56 and position switch 1 6 open cable duct and disentangle the cables 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 axis coupling and remove the axis from the top 14 remove the drive unit to the front 4 screws ORO co NI Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 24 Installation AN 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 Install the balance lift stack tighten the 4 screws tighten the coupling ring plug in the ribbon cable Slide in the weighing p
21. rom below 3 put the upper cover to the correct position 4 plug in the mains cable and turn on the instrument 5 open by software and fix the hood 6 Sturn off prepASH and disconnect from the mains 7 fix the upper cover with 4 screws in the corners from below 8 screw the cables of the crush protection on the plug and plug it in to the power board Pos 7 8 9 put the cable ties 10 close the back board 11 remove the balance protection plug and slide in the weighing pan 12 remove the hood locking device 13 Nous in the mains cable and turn on the instrument 14 check the crush protection 15 close the side walls Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 9 6 2 Filter mat cleaning replacing AAO ADOT Z At 340 7016 1 St 440 2005 1 St 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 ee a Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 10 6 3 Lubricate recirculating ball screws and linear guidings 1 Important disconnect the prepASH from the mains Pull out mains plug 2 open prepASH side walls and middle back Stroke KS
22. t 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 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 8 6 1 Clean airing Remove upper cover open and fix the hood with the hood locking device 2 remove sample plate and weighing pan and fix the red balance protection plug zech 3 GA Important disconnect the prepASH from the mains 4 open the middle back 5 take out the plug of the crush protection on the power board Pos7 8 unscrew the cables from the plug and remove cable ties 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 pull up the crush protection cables o remove iais upper cover completel JOPAR 11 unscrew the airing 12 clean the airing mechanically and with water 13 wipe with alcohol 14 fix the airing Assemble upper cover and crush protection 1 put the upper cover on the hotplate displaced slightly to the front caution cable isolation 2 pull the crush protection cables through the tubular cable protection e g with aid of a wire f
23. termined Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 21 9 Exchange the stack zech DIDUN SON 10 12 13 14 15 Sr Er Rep SE 2 m l E 5 r ef S e i Ta F d S S em e ep yer 7 bm We 2 ll om 2 ke m 2 1 a po A W a 5 coupling ring 6 ribbon cable 6 slotted head Screws Disassembling open and fix the hood with the hood locking device _ 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 slotted head screws of the balance mounting part push the isolation carriage to the back lift the stack lift the balance slightly and remove it to the front caution to the stack remove the stack to the bottom Installation insert stack balance ready to hand install the balance lift stack tighten the 4 screws tighten the coupling ring plug in the ribbon cable Slide in the weighing pan remove the red protection plug if necessary align the stack with set screws Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 22 10 Exchange the lance caution PNHGO0 058 340 5006 1 St 440 7047 1 St Important disco
24. th the hood locking device 2 remove sample plate and weighing pan and fix the red balance protection plug 3 Important disconnect the prepASH from the mains Pull out mains plug open the middle back A take out the plug of the crush protection on the power board Pos7 8 unscrew the cables from the plug and remove cable ties Sech 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 pull up the crush protection cables 0 remove the upper cover completely overheating protection switch and clamp for the heating coil are accessible 0 A Se sae _ T J 8 A d 1 ry rH Overheating protection switch 11 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 13 7 3 Change heating coil 340 8007 Jad PN15 08 MI PHi 5 Ni At t PRAY as PATIO0 O24 340 292 bh At 1 ET MG PH1500 075 T Sf DNSinp OS St PHI GTie A At Ah DS ias 231 DND 16 BA Gah p a 2401 4002 e z St Se 4f 20504C AD 240 4019 1 At 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 N Important disconnect the prepASH from the mains Pull out mains plug open prepASH side walls and front panel ope
25. tias i i i ain 16 FACIMMOVE MOOG Klee 17 PS OVA OM DEE 17 Assemble the isolation guartz dek 17 une En alte e Rue e E EE 17 Assemble upper cover and crush protection EE 17 Be IEXCHANGSIOWEN ISOLATION sunis i aa ii i i ik Ij i i a ak 18 remove Eeler COV EE 18 Remove MOOG RU e el EE 18 Uncover and remove the lower isolations A0 GA00 aaa aaaaaaeaaaaaaaaaa akanai 18 ASSEMDI THE ISOIANOMS Linea asis Ei i ii i E i a G a a a 19 Assemble the hood hotplate e 20 Assemble upper cover and crush protection ssnnnosnnenennnsennnsennnnnennnnnnnnennnnennnnnnennnnn 20 9 EEXCMANGS TG SUAGK tini ates ii A athe Riad i i i i a i k i 21 RE ene Un Le EE 21 ITS Taa DO eta saaa a ei a a TLS rs a ar ee ae 21 10 Exenange TS TAIN GC G baskai ir i eats Sais ei i i a Dinesh a a a a ai 22 11 Replace the nermometer REENEN 22 12 EX Chande UE AFIN Die seess oi sa aa a ao sk 23 D ISASSEMDINNO iai iii a ii i a i i a a S i a a i a n 23 Stalai O a ai ese ner ia i a a i i i is A a a a a ene ee 24 13 e gel Te 24 14 Ad UIS Gru Sai DIOLS CU GI WEE 25 15 Seilen E 25 Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 3 BIS EE 25 PASS CMON EE 26 16 Balance le re DEE 27 17 Gas aqjustMent and Nood CON ON EE 27 PISCAUMG DOWEL COMO Lasa ai nai i ania i a i a a i a i a a a a aa 28 18 Temperature CAM ATIONN Garsinis iais aisiais iai i a i iui i a i a i ai 28 19 Ven Mee H ege e asas eee terre
26. ug and plug it in to the power board Pos 7 8 put the cable ties close the back board remove the balance protection plug and slide in the weighing pan remove the hood locking device plug in the mains cable and turn on the instrument check the crush protection Close the side walls Manual 350 8120 000a1 9 5 07 Precisa Gravimetrics AG Service manual Serie 340 prepASH page 18 8 2 Exchange lower isolation The cover has to be removed to change the lower isolation 18 19 20 21 22 23 35 36 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 take out the plug of the crush protection on the power board Pos7 8 unscrew the cables from the plug and remove cable ties 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 pull up the crush protection cables remove the upper cover completely Remove hood hotplate remove the red cable from the hotplate ground 2 cables and 2 clamp Remove hose fitting with red connecting cable trough the clip remove 2 screws from the top of the pneumatic cylinder PN1100 21 7
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