KNF N 820.3 FT.40.18 Operating Instructions Manual
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KNF N 820.3 FT.40.18 Operating Instructions Manual

Self drying pumps
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N 820.3 FT.40.18
N 840.3 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
KNF 121350-121429 11/18
Translation of original Operating Instructions, english
Operating Instructions
Read and observe these Operating Instructions!
Self Drying Pumps
Contents
1. About this document ................................................................. 3
2. Use ............................................................................................ 4
3. Safety ........................................................................................ 5
4. Technical Data .......................................................................... 7
5. Design and Function ............................................................... 12
6. Installation and connection ...................................................... 15
7. Operation ................................................................................. 16
8. Servicing .................................................................................. 21
9. Troubleshooting....................................................................... 29
10. Spare parts .............................................................................. 31
11. Returns .................................................................................... 31
N 842.3 FT.40.18
N 860.3 FT.40.18
Keep for future use!
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Summary of Contents for KNF N 820.3 FT.40.18

  • Page 1: Table Of Contents

    Operating Instructions Read and observe these Operating Instructions! Self Drying Pumps N 820.3 FT.40.18 N 842.3 FT.40.18 N 840.3 FT.40.18 N 860.3 FT.40.18 Contents Page 1. About this document ..............3 2. Use .................... 4 3. Safety ..................5 4. Technical Data ................7 KNF Neuberger GmbH 5.

  • Page 3: About This Document

     An activity to be carried out (a step) is specified here. 1. The first step of an activity to be carried out is specified here. Additional, consecutively numbered steps follow. This symbol refers to important information. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 4: Use

    The pumps are not suitable for transferring liquids. The pumps must not be used to create vacuum and overpressure simultaneously. An overpressure must not be applied to the suction side of the pump. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 5: Safety

    If necessary, consider any external sources of energy, such as radiation, that may add heat to the medium. In case of doubt, consult the KNF customer service. Environmental protection Store all replacement parts in a protected manner and dispose of them properly in accordance with the applicable environmental protection regulations.
  • Page 6 II  the pollution degree 2.  Customer service and Only have repairs to the pump carried out by the KNF Customer repairs Service responsible. Only authorized personnel should open those parts of the housing that contain live electrical parts.

  • Page 7: Technical Data

    Pump materials Component Pump material Pump head PTFE Diaphragm PTFE coated Valve FFPM Tab. 2 Refer to the type plate for the pump’s electrical configuration. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 8 Maximum permitted mains +/- 10 % +/- 10 % +/- 10 % voltage fluctuations Fuse pump 3.15 (2x) T [A] Protection class motor IP44 Tab. 3 * Liters in standard state (1,013 mbar) Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 9 Maximum permitted mains +/- 10 % +/- 10 % +/- 10 % voltage fluctuations Fuse pump 3.15 (2x) T [A] Protection class motor IP44 Tab. 4 * Liters in standard state (1,013 mbar) Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 10 Maximum permitted mains +/- 10 % +/- 10 % +/- 10 % voltage fluctuations Fuse pump 3.15 (2x) T [A] Protection class motor IP44 Tab. 5 * Liters in standard state (1,013 mbar) Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 11 Maximum permitted mains +/- 10 % +/- 10 % +/- 10 % voltage fluctuations Fuse pump 3.15 (2x) T [A] Protection class motor IP54 Tab. 6 * Liters in standard state (1,013 mbar) Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 12: Design And Function

    Design and Function Laboratory vacuum pumps N 8__.3 FT.40.18 Design and Function Design N 820.3 FT.40.18 , N 840.3 FT.40.18 , N 842.3 FT.40.18 Connection piece Pneumatic connection Pump head Outlet (pressure side) Inlet (suction side) Power switch pump Venting valve...
  • Page 13 Pumps can operate with or without the drying system. The drying system is activated by a switch on the control box. If the drying system remains switched off the pumps operate in the convention- al way. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 14 To do this, the values for t and t can be altered (see chapter 7.4). The pump must be discon- nected from the electricity mains beforehand. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 15: Installation And Connection

    4. At the end of the pressure line, install a container for collecting the condensation that is drained from the pump. 5. Insert the power cable’s plug into a properly installed shockproof socket. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 16: Operation

    Excessive pressure (with all of the related hazards) can be prevented by placing a bypass line with a pressure-relief valve between the pressure and suction side of the pump. For further information, contact your KNF technical adviser. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 17  Attempt work on the pump only if the pump is separated from mains power. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 18 (see fig. 2 or fig. 3).  Switch off pump with mains switch (see fig. 2 or 3).  Open pressure and suction lines to normal atmospheric pres- sure.  Disconnect the power source. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 19 (see fig. 5). The control box may only be opened if there is no risk of moisture precipitating on the control unit. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 20 5. Replace the cover on the control box. Take care to ensure that the seal is properly in place. Tighten the four screws of the cover to finger tightness. Then tighten the collar nut of the ca- ble inlet. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 21: Servicing

    8.2.2. Cleaning Pump  Only use solvents for cleaning if the head materials cannot be attacked (check the resistance of the material!).  If compressed air is available, blow out the components. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 22 Servicing Laboratory vacuum pumps N 8__.3 FT.40.18 8.3. Changing Diaphragm and Valve Plates/Sealings 8.3.1. N 820.3 FT.40.18, N 840.3 FT.40.18, N 842.3 FT.40.18 Conditions Pump is switched off and mains plug is removed from the  socket Pump is clean and free of hazardous materials ...
  • Page 23 (same number and order). 4. Screw in the new diaphragm and tighten it by hand. 5. Carry out steps 1 to 4 for the second pump head. Fig. 8: Changing diaphragm Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 24 8. Carry out steps 1 to 7 for the second pump head. 9. Refit the pneumatic head connection: Place tube onto the connecting part of the angle fitting, turn angle fitting to a Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 25 1. Reconnect suction and pressure line to the pump. 2. Reconnect the pump to the electricity supply. If you have any questions about servicing call your KNF technical adviser (see last page for contact telephone number). 8.3.2. N 860.3 FT.40.18...
  • Page 26 4. Take the diaphragm spacer(s) (7) off the connecting rod (8) and retain them. 5. Check that all parts are free from dirt and clean them if neces- sary. Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 27 4. Place top plate (2) in position and insert screws (3) with disk springs (4), and tighten them until the screw heads are just ful- ly seated (do not completely tighten them!). Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 28 2. Reconnect suction and pressure line to the pump. 3. Reconnect the pump to the electricity supply. If you have any questions about servicing call your KNF technical adviser (see last page for contact telephone number). Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 29: Troubleshooting

     Remove the clogging parts and particles. Head parts are soiled.  Clean head components. Diaphragm or valve plates/  Replace diaphragm and valve plates/sealings (see chapter sealings are worn. 8.3). Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 30 Fault cannot be rectified If you are unable to determine any of the specified causes, send the pump to KNF Customer Service (see last page for the ad- dress). 1. Flush the pump to free the pump head of dangerous or ag- gressive gases (see chapter 8.2.1).

  • Page 31: Spare Parts

    10.3. Head plates and intermediate plates (black) Pump type Order-No. head plate Order-No. intermediate plate Head 1 Head 2 N 820.3 FT.18 304249 304252 304246 (2x) N 840.3 FT.18 304250 304253 304247 (2x) Tab. 19 Translation of original Operating Instructions, English, KNF 121350-121429 11/18...

  • Page 32: Returns

    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,...

  • Page 33: Health And Safety Clearance And Decontamination Form

    Laboratory vacuum pumps N 8__.3 FT.40.18 Health and safety clearance and decontamination form 12. Health and safety clearance and decon- tamination form Translation of original Operating Instructions, English, KNF 121350-121429 11/18...
  • Page 36 KNF worldwide Please find our local KNF partners at: www.knf.com...

This manual is also suitable for:

N 860.3 ft.40.18N 840.3 ft.40.18N 842.3 ft.40.18

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