KNF FMM 80 Operating And Installation Instructions Download Page 18

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Diaphragm liquid pump with linear drive FMM 80

Troubleshooting

KNF Flodos AG BA_FMM80_EN_08_164464.docx
Translation of original Operating and Installation Instructions

9. Troubleshooting



Disconnect the pump power supply before working on the

pump.



Make sure that the pump is de-energised.

Stroke not executed

Cause

Fault remedy

Pump not connected to power
supply



Connect pump to power supply

Power supply is not switched on



Switch on power supply

Connecting leads are damaged



Check connecting leads for damage



Check connecting lead entry on solenoid for damage

Connections or hoses are
blocked



Check connections and hoses



Remove blockage

External valve is closed or filter
is clogged.



Check external valves and filters

Incorrect interchange of pres-
sure and suction line connec-
tions



Remove pressure and suction lines and re-connect correctly

Pressure on the pressure side is
too high



Reduce the pressure on the pressure side of the pump

Electrical signal is outside the
defined range



Adjust pulse signal (see

Chapter 7

)

Tab. 9

Pump is not priming

Cause

Fault remedy

Suction side of pump not con-
nected



Connect the suction side of the pump

Liquid in the priming container is
too low



Fill priming container

Hose connections are not leak-
tight



Secure transition joints between hose and connections with

clamps or other clamping elements

System valve is closed or filter
is clogged



Open system valve



Clean filter

Particles in the pump



Contact KNF

The pump parts are not re-
sistant to the medium to be
pumped



Contact KNF

Incorrect interchange of pres-
sure and suction line connec-
tions



Remove pressure and suction lines and re-connect correctly

Tab. 10

Summary of Contents for FMM 80

Page 1: ...model code is a country specific designation with no technical relevance Contents Page 1 About this document 2 2 Use 3 3 Safety 4 4 Technical Data 6 5 Assembly and function 8 6 Installation and connection 9 7 Operation 12 8 Servicing 17 9 Troubleshooting 18 10 Spare parts and accessories 20 11 Decontamination declaration 21 KNF Flodos AG Wassermatte 2 6210 Sursee Switzerland Tel 41 0 41 925 00 25 ...

Page 2: ... potential danger It also indicates the possible consequences of failure to observe the warning The signal word e g Warn ing indicates the level of danger Here you will see actions for avoiding the danger and potential consequences Danger levels Signal word Meaning Consequences if not observed DANGER warns of immedi ate danger Consequences include death or serious injuries and or serious property ...

Page 3: ...e in the specific application case Before using a medium check the compatibility of the materials of the pump head pump housing diaphragm and valves with the medium The temperature of the medium must lie within the permissible temperature range see Chapter 4 The transferred medium should not contain particles as these can prevent the pump from working correctly If this cannot be ensured a 50 μm fi...

Page 4: ...e read and understood the Oper ating and Installation Instructions and in particular the Safety chapter Always ensure adherence to all pertinent accident prevention and safety regulations when working on and operating the pump When transferring dangerous media observe the safety regula tions for handling such media Always ensure adherence to all information stickers on the pumps such as flow direc...

Page 5: ...nd are therefore to be regarded as not ready for use Partly completed machinery may not be commissioned until such time as it has been determined that the machine in which the partly completed machinery is to be assem bled conforms to the provisions of the Machinery Directive 2006 42 EC The essential requirements of Annex I of Directive 2006 42 EC general principles are applied and observed The fo...

Page 6: ...Tab 3 1 according to DIN ISO 1629 and 1043 1 The pump head comprises an intermediate plate and a connecting plate Fig 1 Hydraulic Data FMM 80 DC P Parameter Value Nominal stroke volume 80 µl 2 Stroke volume calibration range 30 80 µl Flowrate 48 ml min3 80 ml min4 Max permitted pressure3 1 0 bar Flow tight in both directions 1 0 bar Suction head 4 mWS5 Tab 4 During the adjustment of the pump at KN...

Page 7: ...imits transient voltage caused by mutual induction when deactivating the solenoid to a max of 70 V EMC Directive9 EN 61000 6 3 incl EN 55022 EN 55011 Protection class IP 54 Tab 6 8 Control electronics must not have any diodes see Chapter 7 2 9 When operating with electronic module FE Z6 see Chapter 10 1 Other parameters Parameter Value Service life 500 million cycles Noise emission 40 dBA10 Weight...

Page 8: ...l with the specified electrical voltage see Chapter 4 produces a magnetic field This magnetic field pulls the armature 12 and the attached diaphragm 10 back to an adjustable limit stop This causes the diaphragm chamber to be filled with the pumped medium via the inlet 2 In the upward stroke the spring tension on the diaphragm forces the medium out of the pump head via the outlet 1 Once the upward ...

Page 9: ...the installation location to bring it up to ambient temperature Mounting dimensions see Fig 3 Fig 3 Mounting dimensions FMM 80 Make sure that the installation location is dry and the pump is protected against water in the form of rain spray splashes and drips Protect the pump against dust Protect the pump against vibration and impact Generally speaking the pump can be mounted in any installa tion ...

Page 10: ...to a power source the relevant norms directives regulations and technical standards must be observed Connecting the pump Make sure that the power supply data match the data on the motor s type plate The current consumption can be found on the type plate The supply voltage must not deviate more than 10 from the specifications on the type plate Connect the voltage supply cables to the two pump leads...

Page 11: ...istant to the liquids being pumped The hydraulic connection can be made using hoses Section 6 3 1 6 3 1 Connecting the pump Arrows on the pump head indicate the flow direction Remove the protective caps from the connections Connect the suction and pressure lines Keep the suction line as short as possible in order to keep the priming process as brief as possible If the pump is used to build up pres...

Page 12: ... pressure and the inherent dangers thereof 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 Telephone number see first page If the pump stops running restore the system to normal at mospheric pressure Check the pump regularly for external damage or leaks Switching on t...

Page 13: ...of the mutual induction voltage generated at the solenoid to take place thus preventing damage to the electronic control sys tem However the circuit breaker must be able to handle voltages of at least 70 V CAUTION Whatever type of control is used Fig 5 and Fig 6 no additional freewheeling diodes may be used in the control circuit If used they may adversely affect signal quality resulting in a redu...

Page 14: ...sly sucked in liquid is ejected For operational purposes the suction time i e the time that the magnetic coil is energised must be 30 ms Fig 7 Control signal pulse 7 4 Executing several strokes The stroke frequency can be adjusted via the voltage frequency Frequency range 0 to 10 Hz5 max 16 7 Hz6 The exhaust time is at least 70ms5 in continuous operation and at least 30ms6 in short time operation ...

Page 15: ...rmissible duty time ED must be observed In order to prevent the permissible coil temperature Ts_max from being exceeded the pump must not be operated for more than 20 minutes at 16 7 Hz This must be followed by a currentless interval SP lasting 100 minutes If operated for a shorter time at 16 7 Hz the currentless interval is reduced proportionately For short time operation at 16 7 Hz this results ...

Page 16: ... see Fig 9 item 1 at the bottom of the pump Calibration range of metering volume per pump stroke 30 80 μl A 5 mm Allen key is required to adjust the stroke 7 7 Adjusting the flow rate The flow rate can be adjusted via the stroke volume Chapter 7 6 or by means of the stroke frequency Chapter 7 4 For reasons of accuracy the suction time or the energised time SZ must be kept constant and the stroke f...

Page 17: ...poisoning are possible Wear protective clothing if necessary e g pro tective gloves Flush the pump with a neutral liquid and pump empty 8 2 1 Flushing the pump When transferring aggressive media in order to extend the service life of valves and diaphragms KNF recommends flush ing the pump with air if necessary on safety grounds with an inert gas or with a neutral liquid under atmospheric condition...

Page 18: ...orrect interchange of pres sure and suction line connec tions Remove pressure and suction lines and re connect correctly Pressure on the pressure side is too high Reduce the pressure on the pressure side of the pump Electrical signal is outside the defined range Adjust pulse signal see Chapter 7 Tab 9 Pump is not priming Cause Fault remedy Suction side of pump not con nected Connect the suction si...

Page 19: ...ose connectors with clamps or other clamping elements Particles in the pump Contact KNF Viscosity of the transferred medium is too high Contact KNF Incorrect interchange of pres sure and suction line connec tions Remove pressure and suction lines and re connect correctly The pump parts are not re sistant to the medium to be pumped Replace the pump head with a compatible version Tab 11 Fault cannot...

Page 20: ...MM 80 Spare parts and accessories KNF Flodos AG BA_FMM80_EN_08_164464 docx Translation of original Operating and Installation Instructions 20 10 Spare parts and accessories 10 1 Accessories Accessories Order No Starter Kit FSK 4 165133 Tab 12 ...

Page 21: ...mp on condition that the customer provides certification of the transferred media and the cleaning of the pump decontamination declaration In order to send a product back use the decontamination declaration which either was delivered with the product or is available on www knf com Downloads Please fill in the pump type serial number pumped media and all other required information Send the signed f...

Page 22: ...KNF worldwide Please find your local KNF partners at www knf com ...

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