KNF NMP850.1.2K DC-B HP Operating And Installation Instructions Download Page 18

Diaphragm Pumps NMP850 HP 

Returns 

KNF Micro BA321648-321651 NMP850_HP-EN 0921.docx 

Translation of original Operating and Installation Instructions, English 

18 

9.  Returns 

Preparing for return 

1.  Flush the pump with air for a few minutes (if necessary for safety 

reasons: with inert gas) to free the pump head of dangerous or 
aggressive gases (see Chapter Flushing the pump). 

 

Please contact your KNF sales partner if the pump cannot be 
flushed due to damages 

 

2.  Remove the pump. 

3.  Clean the pump (see the Chapter Cleaning the pump). 

4.  Send the pump together with completed Health and Safety Clear-

ance  and  Decontamination  Form  to  KNF,  stating  the  nature  of 
the transferred medium. 

5.  Package  the  device  securely  to  prevent  further  damage  to  the 

product. If necessary, request an original packaging at a charge.  

Returns 

KNF shall undertake to repair the pump only under the condition 
that the customer presents a certificate regarding the medium that 
is pumped and the cleaning of the pump. Please follow the instruc-
tions at knf.com/repairs. 

Contact your KNF sales partner directly if you require additional 
support for your return service.  

 

 

 

Summary of Contents for NMP850.1.2K DC-B HP

Page 1: ...before using the pumps and observe at all times the relevant instructions to avoid dangerous situations The manual was produced for the serial pumps stated above With customer specified projects pump...

Page 2: ...s symbol indicates a potential danger It also indicates the possible consequences of fail ure to observe the warning The signal word e g Warning indicates the level of danger Here you will see actions...

Page 3: ...head pump housing diaphragm seals and valves with the medium The temperature of the medium must lie within the permissible temperature range see Chapter 4 The transferred media should not contain part...

Page 4: ...s media observe the safety regula tions for handling such media Be aware that the pumps are not designed to be explosion proof Make sure the temperature of the medium is always sufficiently be low the...

Page 5: ...visions of the Machinery Directive 2006 42 EC The essential requirements of Annex I of Directive 2006 42 EC general principles are applied and observed General Principles No 1 No 1 1 2 1 1 3 1 3 1 1 3...

Page 6: ...o 104 F Medium temperature C 5 C to 40 C 41 F to 104 F Maximum permissible ambient relative humidity 80 for temperatures up to 31 C 87 8 F decreasing linearly to 50 at 40 C 104 F Storage temperature C...

Page 7: ...Tab 4 Characteristics NMP850KPDC B4 brushless B4 Brushless motor with internal electronic 4 wires Motor Variants Supply voltage V 5 12 24 Max current consumption A 1 1 0 62 Connection Wires AWG24 Pro...

Page 8: ...acteristics NMP850 1 2KPDC B4 brushless 4 wires B4 Brushless motor with internal electronic and controllability Motor Variants Supply voltage V 5 12 24 Max current consumption A 2 4 1 3 Connection Wir...

Page 9: ...acteristics NMP850 1 2KVDC B4 brushless 4 wires B4 Brushless motor with internal electronic and controllability Motor Variants Supply voltage V 5 12 24 Max current consumption A 2 6 1 5 Connection Wir...

Page 10: ...voltages up to 28 VDC Threshold voltage 1 5 VDC FG frequency output FG pulses per mech revolution 18 Output level high Iout 0 1mA 4 2 5 4 V Output level low Iout 0 1mA 0 5 V Tab 10 1 PWM signal also p...

Page 11: ...mp due to automatic start If the pump overheats and the thermal switch electronics stops pump operation the pumps will restart automatically as soon as the motor has had time to cool down Take steps t...

Page 12: ...es that are chemically resistant to the media be ing pumped If ambient air is sucked in use a filter to protect pump from dust 5 3 1 Connecting the pump Arrows on the pump head indicate the flow direc...

Page 13: ...l Operating and Installation Instructions English 13 5 4 Fixation Fixation for NMP850 HP The pump offers two mounting points which allow an easy fixation of the pump with 2x DIN 912 M3 screws Fixation...

Page 14: ...The drive heats up Avoid contact with the pump drive Avoid contact with flammable materials Excessive pressure and the inherent dangers thereof can be prevented by placing a bypass line with a pressu...

Page 15: ...al data Duty cycle impulse operation For pressures over 0 7barg 10 2 psi the duty cycle must be re stricted During operation a maximum temperature of 100 C should not be exceeded in the pump head EPDM...

Page 16: ...ts as these may corrode certain plastic or metallic parts Isolate the pump from the power supply Pump must be free of any hazardous substances Hoses must be disconnected from the pump 7 3 Service inte...

Page 17: ...ystem connected to the suction and pressure sides such as hoses valves or filters are causing too much resistance Modify installation check the cross sections of components Hose connections are not le...

Page 18: ...he pump 3 Clean the pump see the Chapter Cleaning the pump 4 Send the pump together with completed Health and Safety Clear ance and Decontamination Form to KNF stating the nature of the transferred me...

Page 19: ...phragm Pumps NMP850 HP KNF Micro BA321648 321651 NMP850_HP EN 0921 docx Translation of original Operating and Installation Instructions English 19 KNF worldwide Find our local KNF partner on www knf c...

Page 20: ...Diaphragm Pumps NMP850 HP KNF Micro BA321648 321651 NMP850_HP EN 0921 docx Translation of original Operating and Installation Instructions English 20...

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