Operating Instructions Self Drying Vacuumpump PM 200
Contents
1. eh for tube ID 10 ca 260 Paseos LABOPORT ca 214 na R e PA 910 5 20 122 L ca 162 Mains switch Fig 1 Pump PM 16633 842 3 3 00 m The pumps must not start against pressure This also applies when the pump restarts after the power has been cut off for a short period AN The components to be connected to the pump must be designed to withstand the pneumatic data of the pumps see Section 8 AN The maximum permissible opera ting pressure 1 bar g must not be exceeded m To prevent the maximum permis sible operating pressure being exceeded restriction or control of the air or gas flow should only be carried out in the suction line a If restriction or control of the air or gas flow is made on the pressure side ensure that the maximum per missible operating pressure is not exceeded m When the pump is at a standstill the inlet and the outlet must be at normal atmospheric pressure A Ensure the pump outlet is not clo sed or restricted m Diaphragm and valve plates are the only parts subject to wear Wear is usually indicated by a drastic reduction in the pneumatic perfor mance When replacing parts pro ceed as described in section 5 m Ambient conditions see chapter 1 3 4 2 Operation Taking the pump into operation Plug the mains plug of the pump into a properly installed safety socket2. Switch the pump on at the pump mains switch see fig 1 If cyclic drying of the pump heads is required in the current evacu ation process switch the drying system on at the mains switch of the control not included in scope of delivery The drying system should only be switched on if a container has been attached to the pres sure line of the pump which will catch the condensate other wise the condensate will flow out uncontrolled Check Tubing for correct tubing Electrical connections for correct connection After the evacuation process has been completed take the pump out of ope ration Purge the pump including the connecting hoses with air at full 3 flow rate for about 5 minutes O Ifthe drying system is switched on Switch the drying system off at the mains switch of control system not included in scope of delivery Switch the pump off at the mains switch of the pump Pull the mains plug of the pump out of the socket 5 Servicing Changing Diaphragms and Valve Plates Sealings The structured diaphragms in both pump heads should be changed at the same time When diaphragms are changed valve plates sealings should also be replaced If the diaphragms are not changed in both heads at the same time or diaphragms and valve plates sealings are not changed at the same time the nominal performance of the pump is not guaranteed after the servi ce Alfa pump has b
3. maintained A The pumps and or the drying system must not be used in areas where there is a danger of explosion m Ambient temperature during opera tion between 5 C 40 C m During operation an adequate supply of air for cooling must be provided 2 Safety m Note that the pumps may only be used for their intended purpose A The pumps and or the drying system must not be used in areas where there is a danger of explosion A These pumps must not be used if the entry of air into the pump during venting drying system could result in the creation of reac tive explosive or otherwise hazar dous mixtures Prior to any use of the pump en sure that the creation of reactive explosive or otherwise hazardous mixtures during the supply of air is prevented A Components connected to the pumps must be designed to with stand the pneumatic performance of the pumps see chapter 8 m Plug the pump only into properly installed grounded outlets ZN When the operation of the pump is interrupted by the thermal switch it will re start automatically after cooling down Take all care neces sary to prevent this leading to a dangerous situation A Specific safety instructions and measures for the media being handled must be observed m Parts of the casing marked with the sign below are only allowed to be opened after pulling out the plug disconnecting the power source m Use only original KNF repl
4. EWG The requirements of the fol lowing harmonised standards are fulfilled EN 55014 EN 61000 6 1 EN 61000 6 3 EN 61000 3 2 3 EN 61010 1 m The pumps correspond to IEC 664 m the overvoltage category Il m the pollution degree 2 PM 1633 842 3 3 00 e 11 54 Appendix Customer statement for repair order sample statement for copying gt In order for KNF to repair the pump the customer must provide a statement on the media which were pumped and on pump cleaning Please fill out the cor responding KNF form and submit it together with the pump Statement Certificate We confirm that the pump model listed below please specify was used to pump the fol lowing media and that the pump listed above was cleaned There are no poisonous aggres sive biological radioac tive or other dangerous media in the pump Company Date Signature KNF Neuberger GmbH Alter Weg 3 D 79112 Freiburg Tel 49 7664 5909 0 Fax 49 7664 5909 99 E Mail info knf de www knf de english 25 11 2005 D 08851
5. variables m The time between switching on the drying system and the first ventila tion of the pump heads ty m The duration of the ventilation of the pump heads ty m The interval between pump head ventilation operations tg This pump model is equipped with the solenoid valve for ventilating the pump heads The scope of delivery does not include control electronics 1 1 Electrical Equipment m See section 8 for full electrical data m The pumps are fitted with a thermal switch to protect against over loading 1 2 Operating Conditions A The pumps and or the drying system must not be used in areas where there is a danger of explosion A These pumps must not be used if the entry of air into the pump during venting drying system could result in the creation of reac tive explosive or otherwise hazar dous mixtures Prior to any use of the pump en sure that the creation of reactive explosive or otherwise hazardous mixtures during the supply of air is prevented m For maximum permissible operating pressure ultimate vacuum and flow capacity see chapter 8 m The pumps must not be used for liquids You will find suitable liquid pumps in our Product Program If your potential application lies outside the above limits discuss it with our technical adviser see last page for contact telephon number 1 3 Ambient Condition When the pumps are operating the fol lowing ambient conditions must be
6. acement parts 3 Installation m Choose a safe location flat sur face for the pump m Install the pump so as to ensure adequate flow of air cooling m Connect the suction and pressure lines tube ID 10 mm Arrange the pressure line so that condensate can flow out of the the pump falling pipe m The condensate is conducted out of the pump via the pressure line A container is to be installed to catch the condensate m The solenoid valve must be connected to the drying system control electronics not included in scope of delivery see fig 1 m Plug the pump only into properly installed grounded outlets m Compare the supply data with the elecetrical data of the pump The voltage must not vary by more than 10 and 10 from that shown on the type plate 4 Operating Instructions 4 1 Operating Conditions A The pumps and or the drying system must not be used in areas where there is a danger of explosion A These pumps must not be used if the entry of air into the pump during venting drying system could result in the creation of reac tive explosive or otherwise hazar dous mixtures Prior to any use of the pump en sure that the creation of reactive explosive or otherwise hazardous mixtures during the supply of air is prevented A Specific safety instructions for the media being handled must be observed PM 1633 842 3 3 00 e 11 05 Valve voltage 24 V DC blue I brown
7. een used for aggressive or toxic substances or other types of substances which are hazardous hazardous to health or injurious the following points must be observed 1 Clean the pump and its compo PM 1633 842 3 3 00 e 11 05 Orientation of disk springs O O Pump N 842_ has a round shape of head 9 0000 Specification O Structured diaphragm Dampening Screw 12x Spacer thick diaphragm Screw 3x Spacer thin Disk spring 2 Dampening ring A Top plate 3 Screw Head plate Dampening felt Valve plate sealing 5 Dampening ring B Intermediate plate Adapter Guide pin 2 Dampening ring C Fig 2 Pump head for N 842 3_ exploded drawing symbolic nents before servicing N Ensure that the service personnel is not subject to a health hazard Apply the safety and protection measures that are necessary for the medium that has been handled by the pump example the use of protective gloves Ensure that discarded parts and materials are safely and correctly disposed of 3 Use only original KNF replacement parts Required tools and material m Service Set see section 7 m Philips head screwdriver No 2 Change the structured diaphragms and valve plates sealings in the following sequence a Preparatory steps b Remove pump heads c Change structured diaphragms d Change valve plates sealings e Refit pum
8. memmert Operating Instructions Self Drying Vacuumpump PM 200 INNOVATIVE TECHNOLOGY HE e WORLDWIDE NEUBERGER Operating Instructions m 1662823 Self Drying Pumps Laboratory Vacuum Pumps with Drying System PM 16633 342 3 You have selected a high quality KNF product the following tips will help you operate it safely and reliably over a long period of time Carefully study operating instructions before using the pumps and observe at all times the relevant instructions to avoid dangerous situations 0 List of Contents 1 Description Operating Conditions Safety Installation Operation Servicing Trouble Shooting Ordering Information Specifications ONDOOUIODSWN CE KNF resrve the right to make changes Advise to users A Warning Task gt Important point Position in the illustration E PM 1633 842 3 3 00 e 11 05 Symbols O 1 Description Operating Conditions The pumps transfer and evacuate 100 oil free In operation they are gas tight and maintenance free The self drying pumps make it possible during evacuation to blow the conden sed liquid out of the pump heads at high speed while maintaining the vacuum in the recipient at a constant level After drying the pump heads the pumps achieve a greatly improved vacuum and evacuate much faster than pumps without a drying system The control for the drying system is effected via soleonid valve and three
9. mp head Refit the pneumatic head connec tion Place tube onto the connecting part of the angle fitting turn angle fitting to a straight position and tighten the union nut f Final steps Reconnect system tubing Reconnect the pump to the electri city supply gt Ifthe pump does not reach the desired vacuum after changing diaphragms and valve plates sea lings Check whether the spacers have been replaced onto the diaphragm screw thread Check the interconnecting pipe work connection between both pump heads as well as the tubing for leaks O Possibly the screws 1 on one of the pump heads or both heads are insufficiently tightened carefully tighten them again crosswise gt If you have any questions about servicing call our technical adviser see last page for contact tele phone number 6 Troubleshooting gt Sufficient vacuum is not reached Possible reasons Tube connections are not tight O O Condensate in the pump head gt Switch the drying system on or reduce the interval bet ween pump head ventilation operations Diaphragms and or valve plates sealings are worn out gt Changing diaphragms and valve plates sealings see section 5 If this problem occurs after chan ging of diaphragms or valve pla tes sealings gt See information in section 5 gt Pump is switched on but does not run the on off switch on the pump is not lit Possible reasons Pump is
10. not connected with the power source No voltage in the power source Fuse in the pump is defective only authorized qualified personnel should investigate this problem gt Disconnect the pump from the power source by pulling out plug Placement of fuse gt The fuse is accessible after opening the marked cover at the bottom of the pump Dimension of the fuse see section 8 gt Pump is switched on but does not run the on off switch on the pump is lit Possible reason The thermal switch has opened due to overheating gt Disconnect the pump from the power source let the pump cool down investigate the reason for the overhea ting and irradicate it 7 Ordering Information Service Set A Service Set contains all replacement parts needed for one complete service of the pump 5 Service Set contains 2 diaphragms and 4 valve plates sealings Order No 057359 8 Specifications Capacity max 34 l min Ultimate vacuum 4 mbar abs Permissible opera ting pressure max 1 bar9 Permissible ambient temperature 5 40 C Hose connection for tube ID 10 mm Voltage pump 230 V Frequency 50 Hz Power consum ption pump 220 W Fuse pump 2 x 3 15 T A IP 44 Voltage soleonid valve 24V DC gt CE Safety Demands m The pumps correspond to the safety regulations of the EU low voltage directive 73 23 EWG and of the EU directive concerning elec tromagnetical compatibility 89 336
11. p heads f Final steps The postion numbers in the fol lowing text refer to fig 2 a Preparatory Steps Shut down system see section 4 2 A including disconnecting the pump from the power source pull out plug of electrical supply unit Remove tubing from the inlet and outlet connectors of the pump b Removing the pump heads 4 O On the pneumatic head connec tions loosen one of the union nuts by hand Then slightly loosen the angle fitting in the pump head by turning it anticlockwise so that the connecting tube can be pulled out Loosen the outer screws D on each pump head Carefully remove both pump heads top plate head plate G and intermediate plate The soleonid valve of the drying system remains fitted in this situation 9 Change structured diaphragms Push down one structured dia phragm 9 until other diaphragm is pushed upwards to its highest position O Carefully unscrew the higher strucutred diaphragm anti clock wise using both hands Replace all spacers 0 onto the screw thread of the new structu red diaphragm same number and order Screw in the new structured dia phragm 9 and tighten it by hand you do not need any tool Change the second structured dia phragm as described above step to for the first gt Changing the two diaphragms one after the other ensures that the same number of diaphragm spa cers are refitted as we
12. re removed This is essential to maintain the pneumatic performance of the pump e Change valve plates sealings Unscrew the three screws 2 in the top plate of one pump head Carefully remove top plate and head plate G from intermediate plate 7 exposing the valve pla tes sealings Remove old valve plates sealings If there should be deposits in the recesses in the intermediate plate O clean them until the deposits have been completly removed O Insert new valve plates sealings in the recesses in the interme diate plate 7 upper and lower sides of the valve plates sealings are identical Carry out the steps to for the PM 1633 842 3 3 00 e 11 05 second pump head 1 Refitting the pump heads O Atone pump head Press the lip on the edge of the structured diaphragm into the groove in the housing O Place the intermediate plate with the valve plates sealings on the adapter 9 Place the head plate on the intermediate plate 7 in the posi tion indicated by the guide pin 8 O Place the top plate on the head plate 5 in the right position O Gently tighten screws in diago nal order Screw in the three screws in the centre of the pump top plate until they are flush with the top plate then screw one final half turn to tighten gt For orientation of disk springs 3 see fig 2 Carry out steps to for the second pu
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