Operating Instructions Self Drying Vacuumpump PM 400
Contents
1. 2 After the evacuation process has been completed take the pump out of ope ration Plug the mains plug of the pump into a properly installed safety socket 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 system not included in scope of delivery gt 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 Tubing for correct tubing Electrical connections for correct connection Purge the pump including the connecting hoses with air at full flow rate for about 5 minutes If the drying system is switched on Switch the drying system off at the mains switch of control system 3 291 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 diaphragms in both pump heads should be changed at the same time When diaphragms are changed valve plates sealings should also be repla ced If the diaphragms are not changed in both heads at the same time or dia phragms and valve plates sealings are not changed at the same time the nominal performa2. Connecting box ofthe pump for tube ID 10 Mains switch Fan cover brown voltage valve 24V DC ca 800 187 0 5 LL 294 5 6 mm deep II 207 281 5 138 0 5 ca 323 Fig 1 Pump PM 16527 N 860 3 2 00 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 A 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 m f 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 Check
3. Put the diaphragm spacer s on the thread of the new dia phragm Fit the new structured diaphragm hold the connecting rod 8 with one finger and gently screw in clockwise the structured dia phragm with diaphragm spacers Turn the fan until the structured Specification Pos Description Top plate Head plate Intermediate plate Housing Cross recessed raised counter sunk head screw Structured diaphragm Diaphragm spacers s Connecting rod Cross recessed raised cheese head screw Disk spring Valve plate Sealing O0 0000 008080 diaphragm is at the top dead cent re Using a small screwdriver bet ween the housing and the outer edge of the structured diaphragm carefully liftthe edge of the dia phragm lightly upwards at one point Now grip the edge of the dia phragm on opposite sides do not overstretch the diaphragm and tighten the structured diaphragm clock wise d Changing valve plates sealings Undo the two screws Separate the head plate with top plate D from intermediate plate Remove the valve plates sealings from the intermediate plate Check that the valve seats the head plate and intermediate plate are clean If scratches distortion or corrosion are evident on these parts they should be replaced Lay the new valve plates sealings in the recesses in the interme diate plate The valve plates sea lings for suction and pressure sides are identical a
4. erger 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 29 11 2005 D 08853
5. gs Order No 047499 8 Specifications Capacity max 60 I min Ultimate vacuum 4 mbar abs Permissible operating pressure max 1 bar 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 54 Voltage solenoid valve 24 V DC gt CE Safety Demands 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 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 The pumps correspond to IEC 664 m the overvoltage category Il m the pollution degree 2 PM 16527 860 3 2 00 e 11 05 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 Neub
6. ible reasons Tube connections are not tight 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 and valve pla tes sealings See information in section 5 Pump is switched on but does not run the on off switch on the pump is not lit Possible reasons Pump is 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 Fuse accessible after opening the connecting box of the pump see fig 1 for the posi tion of the connecting box 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 Service Set contains 2 diaphragms 4 valve plates sea lin
7. ient conditions must be 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 ZA 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 Use
8. memmert Operating Instructions Self Drying Vacuumpump PM 400 PM 500 INNOVATIVE TECHNOLOGY WORLDWIDE an a NEUBERGER Operating Instructions m 165278003 Self Drying Pumps Laboratory Vacuum Pumps with Drying System PM 16527 360 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 ONDOOIOIDSWN CE KNF resrve the right to make changes A Warning Task P Advise to user Important point Position in the illustration E PM 16527 860 3 2 00 e 11 05 Symbols 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 ofthe 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 sole
9. nce of the pump is not guaranteed after the service Alfa pump has been 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 Clean the pump and its compo nents before servicing 2 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 3 PM 16527 860 3 2 00 e 11 05 rts Fig 2 Cross section of pump heads symbolic disposed of gt Use only original KNF replacement parts Parts and tools required m 1 Service Set see section 7 m Screwdriver blade width 2 mm m Phillips screwdriver No 2 Felt tip pen Change the diaphragms and valve pla tes sealings in the following sequence a Preparatory steps b Removing pump head c Changing diaphragm d Changing valve plates sealings e Refitting pump head f Final steps gt The position numbers in the following text refer to fig 2 a Preparatory Steps Shut down system see section 4 2 A including disconnecting the pump from the power s
10. noid valve and three variables m The time between switching on the drying system and the first ventila tion of the pump heads t4 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 AN The pumps and or the drying system must not be used in areas where there is a danger of explosion IN 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 contacttelephon number 1 3 Ambient Condition When the pumps are operating the fol lowing amb
11. only original KNF replacement parts Installation Choose a safe location flat sur face for the pump Install the pump so as to ensure adequate flow of air cooling Connect the suction and pressure lines tube ID 10 mm gt Arrange the pressure line so that condensate can flow out of the the pump falling pipe The condensate is conducted out of the pump via the pressure line A container is to be installed to catch the condensate The solenoid valve must be connected to the drying system control electronics not included in scope of delivery see fig 1 Plug the pump only into properly installed grounded outlets 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 IN 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 m The pumps must not start against PM 16527 860 3 2 00 e 11 05
12. ource pull out plug of pump Remove tubing from the inlet and outlet connectors of the pump 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 Undo the screws that hold the fan cover see fig 1 and remove the fan cover from the motor b Removing pump head for each head separately Mark the position of top plate head plate intermediate plate and housing relative to each other with a felt tip pen This is to ensure that the parts will be re assembled cor rectly at a later stage Undo the eight screws and lift the pump head off the housing The solenoid valve of the drying system remains fitted in this situation c Changing diaphragm Position the pump so that the dia phragm surface is upwards Turn the fan to bring the structured diaphragm to top dead centre Using a small screwdriver bet ween the housing and the outer edge of the structured diaphragm carefully lift the edge of the dia phragm lightly upwards at one point making sure not to damage the housing Now grip the edge of the diaphragm on opposite sides unscrew it by turning anti clock wise Take the diaphragm spacer s off the connecting rod and retain them Check that all parts are free from dirt and clean them if necessary
13. s are upper and lower sides of the plates sealings e Refitting pump head Turn the fan to bring the structured diaphragm to medium position Place the intermediate plate with valve plates sealings on the housing in the position indica ted by the felt tip pen marking Place the head plate on the intermediate plate in the posi tion indicated by the felt tip pen marking Place top plate in position PM 16527 860 3 2 00 e 11 05 0 and insert screws with disk springs 0 and tighten them until the screw heads are just fully seated do not completely tighten them gt The concave side of the first three disc springs must point away from the screw head the next three towards it see fig 2 detail X Gently tighten the screws evenly and diagonally Turn the fan to check that the pump rotates freely Now tighten screws hand tight Tighten each of the screws a half turn more Repeat operations b c d and e for the second pump head f Final steps Refit the the pneumatic head connection Place tube onto the connecting part of the angle fitting turn angle fitting to a straight position and tighten the nut Refit the fan cover Reconnect the pump to the electri city supply If you have any questions about servicing call our technical adviser see last page for contact tele phone number Troubleshooting Sufficient vacuum is not reached Poss
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