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Returns 

 

Laboratory vacuum pumps N 8__.3 FT.40.18 

32 

Translation of original Operating Instructions, English, KNF 121350-121429 11/18 

11.  Returns 

Pumps and systems used in laboratories and process-based 
industries are exposed to a wide variety of conditions. This means 
that the components contacting pumped media could become 
contaminated by toxic, radioactive, or otherwise hazardous sub-
stances. 
For this reason, customers who send any pumps or systems back 
to KNF must submit a Health and safety clearance and decontami-
nation form in order to avoid a hazardous situation for KNF em-
ployees. This Health and safety clearance and decontamination 
form provides the following information, among other things: 

  physiological safety 

  whether medium-contacting parts have been cleaned 

  whether the equipment has been decontaminated 

  media that have been pumped or used 

To ensure worker safety, work may not be started on pumps or 
systems without a signed Health and safety clearance and decon-
tamination form.  
For optimal processing of a return, a copy of this declaration 
should be sent in advance via e-mail, regular mail, or fax to KNF 
Customer Service (refer to final page for address). In order to avoid 
endangering employees who open the shipment's packaging, 
despite any residual hazards, the original version of the Health and 
safety clearance and decontamination form must accompany the 
delivery receipt on the outside of the packing. 
The template for the Health and safety clearance and decontami-
nation form is included with these Operating Instructions and may 
also be downloaded from the KNF website. 
The customer must specify the device type(s) and serial number(s) 
in the Health and safety clearance and decontamination form in 
order to provide for the unambiguous assignment of the Declara-
tion to the device that is sent to KNF. 
In addition to the customer's declaration of physiological safety, 
information about operating conditions and the customer's applica-
tion are also of importance to ensure that the return shipment is 
handled appropriately. Therefore, the Health and safety clearance 
and decontamination form requests this information as well.

Summary of Contents for N 820.3 FT.40.18

Page 1: ...T 40 18 N 860 3 FT 40 18 KNF Neuberger GmbH Alter Weg 3 79112 Freiburg Germany Phone 49 0 7664 5909 0 Fax 49 0 7664 5909 99 E Mail info knf de www knf de Contents Page 1 About this document 3 2 Use 4...

Page 2: ......

Page 3: ...danger warning is located here Possible consequences of a failure to observe the warning are specified here The signal word e g Warning indicates the danger level Measures for avoiding the danger and...

Page 4: ...alves with the medium Only transfer gases which remain stable under the pressures and temperatures occurring in the pump Ensure that the entry of air into the pump during venting drying system could n...

Page 5: ...otice sticker see fig 1 only after separating mains plug from power source When transferring dangerous media observe the safety regula tions when handling these media Be aware that the pumps are not d...

Page 6: ...e Directive 2006 42 EC concerning Machinery The following harmonized standards have been used DIN EN 61010 1 DIN EN 61326 1 class A DIN EN 50581 The pumps correspond to IEC 664 the overvoltage categor...

Page 7: ...glish KNF 121350 121429 11 18 7 4 Technical Data All pumps are secured against overheating with a thermal switch and are equipped with a mains fuse Pump materials Component Pump material Pump head PTF...

Page 8: ...temperature 5 C to 40 C Permissible media tempera ture 5 C to 40 C Other parameters Weight kg 9 6 Dimensions L x H x W mm 312 x 220 x 177 Maximum permissible ambient relative humidity 80 for temperat...

Page 9: ...temperature 5 C to 40 C Permissible media tempera ture 5 C to 40 C Other parameters Weight kg 12 9 Dimensions L x H x W mm 341 x 239 x 189 Maximum permissible ambient relative humidity 80 for tempera...

Page 10: ...to 40 C Other parameters Weight kg 13 7 Dimensions L x H x W mm 341 x 242 x 189 Maximum permissible ambient relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 at 40 C Max alti...

Page 11: ...temperature 5 C to 40 C Permissible media tempera ture 5 C to 40 C Other parameters Weight kg 14 8 Dimensions L x H x W mm 331 x 278 5 x 291 Maximum permissible ambient relative humidity 80 for temper...

Page 12: ...p head 4 Outlet pressure side 5 Inlet suction side 6 Power switch pump 7 Venting valve 8 Power switch drying system 9 Control box Fig 2 Diaphragm pump shown pump N 840 3 FT 40 18 symbolic Design N 860...

Page 13: ...nks to the drying system it is possible during evacuation to blow the condensed liquid out of the pump heads at high speed while maintaining the vacuum in the recipient at a constant level After dryin...

Page 14: ...first ventilation of the pump heads t1 The duration of the ventilation of the pump heads t2 The interval between pump head ventilation operations t3 For t1 to t3 standard values are set in the factory...

Page 15: ...e a safe location flat surface for the pump Protect the pump from dust Protect the pump from vibration and jolt 6 2 Connection Only connect components to the pump which are designed for the pneumatic...

Page 16: ...ter 2 2 Observe the safety precautions see chapter 3 WARNING Hazard of the pump head bursting due to excessive pressure increase Do not exceed max permissible operating pressure see chapter 4 Monitor...

Page 17: ...ve or otherweise hazardous mixtures Use inert gas where appropriate With the pump at a standstill open pressure and suction lines to normal atmospheric pressure WARNING Automatic starting can cause pe...

Page 18: ...ying system should only be switched on if a container has been attached to the pressure line of the pump which will catch the condensate otherwise the condensate will flow out uncontrolled When the dr...

Page 19: ...7 5 600 0 9 360 0 10 0 900 0 Tab 8 Variables and values Switch Switch setting Time in sec 1 6 210 0 2 2 2 0 3 3 40 0 Tab 9 Work setting DANGER Extreme danger from electrical shock Disconnect the pump...

Page 20: ...the desired values at switches S1 S2 and S3 see fig 5 See Table 8 for an explanation of the switches and for the val ues which can be set 5 Replace the cover on the control box Take care to ensure th...

Page 21: ...he latest when pump output decreases Tab 10 8 2 Cleaning When cleaning make sure that no liquids enter the inside of the housing 8 2 1 Flushing Pump Before switching off the pump flush it with air if...

Page 22: ...lips head screwdriver No 2 1 Felt tip pen Tab 11 Always replace diaphragm and valve plates sealings together to maintain the pump performance With multi head pumps parts of the individual pump heads c...

Page 23: ...bly later In version N 842 3 FT 40 18 twelve instead of three screws must be loosened in the next work step 3 Loosen the outer screws fig 7 5 on the pump heads 4 Carefully remove pump heads The magnet...

Page 24: ...plate 8 with valve plates sealings on the adapter in accordance with the felt tip pen marking 3 Place the head plate 6 on the intermediate plate 8 in the position indicated by the guide pin 7 4 Place...

Page 25: ...mp s pneumatic inlet and outlet Spare part tool Service Set according to chapter 10 Philips screwdriver No 2 Screwdriver blade width 2 mm Felt tip pen Tab 12 Always replace diaphragm and valve plates...

Page 26: ...plate fig 11 2 head plate 10 intermediate plate 9 and housing 5 with a felt tip pen This is to ensure that the parts will be reas sembled correctly at a later stage 4 Undo the eight screws 11 5 Lift...

Page 27: ...top plate 2 from intermedi ate plate 9 3 Remove the valve plates sealings 1 from the intermediate plate 4 Check that the valve seats the head plate and intermediate plate are clean If scratches disto...

Page 28: ...7 Now tighten screws 11 hand tight 8 Tighten each of the screws 3 a half turn more tightening torque 20 Ncm 9 Carry out steps 1 to 8 for the second pump head 10 Refit the pneumatic head connection Pla...

Page 29: ...lace diaphragm and valve plates sealings see chapter 8 3 Tab 13 Flow rate pressure or vacuum too low The pump does not achieve the output specified in the Technical data or the data sheet Cause Fault...

Page 30: ...itch on if necessary Fuse in the pump is defective Remove pump s mains plug from the socket All pumps except for N 860 3 FT 40 18 Loosen marked lid on underside of the pump Pump N 860 3 FT 40 18 Open...

Page 31: ...842 3 FT 40 18 057359 N 860 3 FT 40 18 047499 Tab 17 10 2 Head plates and intermediate plates white Pump type Order No head plate Order No intermediate plate Head 1 Head 2 Head 1 Head 2 N 820 3 FT 18...

Page 32: ...decon tamination form For optimal processing of a return a copy of this declaration should be sent in advance via e mail regular mail or fax to KNF Customer Service refer to final page for address In...

Page 33: ...m pumps N 8__ 3 FT 40 18 Health and safety clearance and decontamination form Translation of original Operating Instructions English KNF 121350 121429 11 18 33 12 Health and safety clearance and decon...

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Page 36: ...KNF worldwide Please find our local KNF partners at www knf com...

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