Page 1
KNF 316836-316838 01/20 TRANSLATION OF ORIGINAL OPERATING AND INSTALLATION INSTRUCTION ENGLISH DIAPHRAGM PUMP Notice! Before operating the pump and the accessories, read the operating and installation instructions and observe the safety notices!
Index KNF Neuberger GmbH Alter Weg 3 1 About this document ............ 3 79112 Freiburg 2 Use ................... 5 Germany 3 Safety................ 6 Tel. +49 (0)7664/5909-0 4 Technical data .............. 8 Fax. +49 (0)7664/5909-99 5 Design and function ............ 11 6 Transport ................
WARNING warns of possible dan- Death or serious injury or serious damage is possible. CAUTION warns of a possibly Minor injuries or dam- dangerous situation age is possible. Tab.1 Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 4
An activity to be carried out is specified here (a step). 1. The first step of an activity to be carried out is specified here. Follow other sequentially numbered steps. This symbol indicates important information. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
No overpressure may be applied to the suction side of the pump. This function can be made possible on a project basis following consulta- tion with KNF Customer Service. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
If applicable, also take into consideration external energy sources (e.g. ra- diation sources) that could additionally heat the medium. In case of doubt, contact KNF Customer Service. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 7
DIN EN 50581 § DIN EN 61000-6-2/3 Customer service and repairs The pumps are maintenance-free. KNF does, however, recommend peri- odically inspecting the pumps for conspicuous changes in the noises and vibrations. Only have repairs to the pumps performed by the responsible KNF Cus- tomer Service.
Tab.9 *Bar rel related to 1013 hPa **Liters in standard state (1013 hPa, 20°C) Pneumatic connections Pump type Value Value N96KNDC-B-M G1/8 NPT 1/8 N96KTDC-B-M G1/8 NPT 1/8 Tab.11 Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 9
A leak test can be used to determine whether the original gas tightness is again achieved. **Values apply for helium leak test Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 10
Technical data Diaphragm pump N96 Permissible ambient temperature Pressure in Pressure in mbar Fig.1 Permissible ambient temperature Permissible media temperature Pressure in Pressure in mbar Fig.2 Permissible media temperature Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
(2). In the upwards stroke, the diaphragm presses the medium out of the pump head via the outlet valve (1). The transfer chamber (3) is hermetically separated from the pump drive (7) by the diaphragm. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
- 10 to + 60 Permissible humidity (non-condens- 30 to 85 ing) [%] Tab.19 Transport parameters Before putting into operation, make sure that the pump has reached the ambient temperature (4 Technical data). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
à CAUTION Where appropriate, wear suitable personal protective equipment (e.g., safety shoes, safety gloves). à Mounting dimensions For mounting dimensions, see the following illustrations: Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 14
Protect the pump from dust. à Protect the pump from vibration and impact. à Protection against foreign Protect the pump against contact and the ingress of foreign bodies. objects Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 15
Connection definition of the direction of rotation, see Fig. 8, Fig. 9. 3. Place the pump head (2) on the compressor housing. 4. Tighten the four head plate screws (1) crosswise (tightening torque: 190 – 200 Ncm). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 16
– the cables cannot be worn or damaged on sharp corners or edges – no tensile and pressure forces are exerted on the connection point of the cables (strain relief) Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 17
Ensure the correct polarity. With brushless three-phase motors (in- dicated by a B at the end of the type designation), incorrect polarity will result in destruction of the electronics. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 18
Not recommended for pump Input level "low" → Motor CW [0…0.8] Input impedance @ 1 kHz [kΩ] ≥ 10 Tab.23 Connection diagram for motor controller N96_DC-B-M *see Chapter 8.3 Control functions DC-B-M Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 19
Diaphragm pump N96 Installation and connection Fig.8 Connection diagram without external speed setting Fig.9 Connection diagram with external speed setting Speed Permissible control range Fig.10 Duty cycle range N96KN_ Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 20
In this way it is possible to prevent the transfer of possible pump vibrations and noises to the system. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 21
Pneumatic noises can be reduced or dissipated by using a silencer (see Chapter 11.2 Accessories). Secure the pressure-side connections with a fastener (e.g., hose/ pipe clamp) to prevent the hoses from slipping down from the con- nection. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Ensure the proper use of the pumps (See Chapter 2.1 Proper use). à Eliminate the possibility of improper use of the pumps (see Chapter 2.2 Improper use). à Observe the safety instructions (Chapter 3 Safety). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 23
à KNF recommends: When pumping corrosive media, flush the pump before switching off (see Chapter 9.2.1 Flushing the pump) to extend the service life of the diaphragm. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 24
The input signal for direction of motor rotation is applied via the yellow lead (see Tab. 23). 8.3.4 Input signal for remote ON/OFF The input signal for remote ON/OFF is applied via the white lead (see Tab. 23). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Inspect the pump periodically for external damage or leakage à Diaphragm and valve plates At the latest, replace when the pump flow rate decreases. à Silencer (accessories) Replace if soiled. Tab.25 Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 26
If possible, the parts should be cleaned dry with a cloth. Solvents should not be used during cleaning because they could attack the plastic parts. à If there is any compressed air left, blow out the parts. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 27
The diaphragm and valve plates/seals are to be replaced in the following order: a.) Preparatory steps b.) Remove pump head c.) Replace diaphragm d.) Replace valve plates/seals e.) Mount pump head f.) Final steps Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 28
(5) and move the diaphragm (5) to the upper reversal point. Unscrew the diaphragm (5) counterclockwise. 2. Check all parts for soiling and clean the parts if necessary (for further information, see Chapter 9.2 Cleaning). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 29
à Connect the pump to the power supply. If you have questions with regard to maintenance, please contact your KNF Customer Service (contact data: see www.knf.com). Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
The applied voltage must not exceed the value specified in Chapter 7.3 Electrical connection. Diaphragm and valves are worn or à Replace diaphragm and valves (see Chapter 9.3 defective. Replacing diaphragm and valve plates). Tab.29 Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Page 31
2. Clean the pump (see Chapter 9.2.2 Cleaning the pump). 3. Send the pump together with completed Health and Safety Clearance and Decontamination Form to KNF, specifying the pumped medium. Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Order number Suction filter 000346 Hose connector made of PVDF 025671 Hose connector made of PA 001936 Silencer 000345 Base plate 321256 Rubber-bonded metals 320986 Tab.39 Fig.14 Accessories N96 Translation of Original Operating and Installation Instruction, English, KNF 316836-316838 01/20...
Diaphragm pump N96 Returns 12 Returns Prerequisite for repairing a pump by KNF is a completed Decontamination Form. This is made available on the KNF website as a download. § To find the form, select your country on the overview page (www.knf.com).
Page 36
KNF worldwide You can find our local KNF partners at: www.knf.com...
Need help?
Do you have a question about the N96 and is the answer not in the manual?
Questions and answers