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PMP
User Manual
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Memmert PM, PMP User Manual

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PM - PMP

Manual

Pump module PM - PMP
MADE IN GERMANY.
www.memmert.com
Manufacturer and customer service
MEMMERT GmbH + Co. KG Willi-Memmert Strasse 90-96 91186 Büchenbach Germany
Phone: +49 (0)9122 925-0 Fax: +49 (0)9122 14585 E-mail: sales@memmert.com Internet: www.memmert.com
Customer service: Service hotline: +49 (0)9171 9792 911 Service fax: +49 (0)9171 9792 979 E-mail: service@memmert.com
When calling for service enquiries, please state the appliance number given on the nameplate Shipping address for repairs:
Memmert GmbH + Co. KG Customer service Willi-Memmert Str. 90-96 91186 Büchenbach Germany
Please contact our customer service department before sending appliances for repair or before returning equipment, or the shipment may be refused.
© 2019 MEMMERT GmbH + Co. KG D39489 I Date 12/2019 Subject to change without notice
2
3

Contents

1. Safety regulations 6
1.1 Product safety and dangers ................................................................................................6
1.2 Intended use ........................................................................................................................ 7
1.3 Changes and alterations ...................................................................................................... 7
1.4 Requirements of the operating personnel .......................................................................... 7
1.5 Behaviour in case of malfunctions and irregularities .......................................................... 7
1.6 Switching off the appliance in an emergency ....................................................................7
2. Putting into operation 8
2.1 Connecting the vacuum pump ........................................................................................... 8
2.2 Connecting the appliance ................................................................................................... 8
2.3 Connecting the vacuum pump to the VO........................................................................... 9
2.4 Switching on ........................................................................................................................9
3. Technical data 10
4. Spare parts and service 10
5. Maintenance and cleaning 11
5.1 Emptying the collection container ....................................................................................11
6. Operating and installation information 11
4

About this manual

Purpose and target audience
This manual, together with the operating manual for the MEMMERT vacuum oven, describes how to use and put into operation the MEMMERT pump module. Pump modules can be purchased with or without a pre-installed vacuum pump.
The manual contains the original maintenance and operating manual for the membrane vacu­um pump, which may have been installed, from the company KNF.
The pump module may only be used in combination with the MEMMERT vacuum oven VO or VOcool. All information in terms of safety instructions, assembly, function, transport, putting into operation, troubleshooting, maintenance and decommissioning/disposal can be found in the operating manual for the vacuum oven VO.
This manual is intended for use by trained personnel of the owner, who have the task of oper­ating and/or maintaining the respective appliance. If you are asked to work on the appliance, read this manual carefully before starting.
Familiarise yourself with the safety regulations. Only perform work that is described in this manual. If there is something you do not understand, or certain information is missing, ask
your manager or contact the manufacturer. Do not do anything without authorisation.
Other documents to be observed as applicable:
► The operating manual for the MEMMERT vacuum oven VO ► The original maintenance and operating manual for the vacuum pump from KNF
Storage and resale
This operating manual belongs with the appliance and should always be stored where per­sons working on the appliance have access to it. It is the owner’s responsibility to ensure that persons who are working on or are going to work on the appliance know where to find the operating manual. We recommend that it is always stored in a protected location close to the appliance. Make sure that the operating manual is not damaged by heat or humidity. If the appliance is resold or transported and then set up again at a different location, the operating manual must remain with it.
The current version of this operating manual in PDF format is also available for download from http://www.memmert.com/en/service/downloads/user-manual/.
5
Safety regulations

1. Safety regulations

1.1 Product safety and dangers
The appliances described in this manual are technically sophisticated, manufactured using high-quality materials and subject to many hours of testing in the factory. They reflect the state of the art and comply with recognised technical safety regulations. However, there are still risks involved, even when the appliances are used as intended. These are described below.
WARNING
After removing covers, live parts may be exposed. Touching these can lead to an electric shock. Disconnect the mains plug before removing any covers. Work on the electrical system must only be performed by qualified electricians.
WARNING
Toxic gases or vapours may be produced in certain applications. These can escape from the vacuum pump into the room. This can injure people nearby. The appliance may only be used for such applications if a suction is attached to the vacuum pump used, which reliably keeps toxic gases or vapours away from people. Ob­serve the respective national regulations for occupational safety and environmen­tal protection.
NOTICE
The operating manual of the MEMMERT vacuum oven contains important informa­tion and instructions how to use the pump module. Follow all possible information from the related operating manual of the vacuum oven exactly.
6
Safety regulations
1.2 Intended use
The appliance may only be used to accommodate and control a vacuum pump by means of a MEMMERT vacuum oven VO29, VO49 or VO101. Any other use is improper and may result in hazards and damage.
1.3 Changes and alterations
No unauthorised changes or alterations may be made to the appliance. No parts may be add­ed or inserted which have not been approved by the manufacturer.
Unauthorised changes or alterations result in the CE declaration of conformity losing its validi­ty, and the appliance may no longer be operated.
The manufacturer is not liable for any damage, danger or injuries that result from unauthor­ised changes or alterations, or from non-compliance with the provisions in this manual.
1.4 Requirements of the operating personnel
The appliance may only be operated and maintained by persons who are of legal age and have been instructed accordingly. Personnel who are to be trained, instructed or who are un­dergoing general training may only work with the appliance under the continuous supervision of an experienced person.
Repairs may only be performed by qualified specialists. The provisions in the operating and installation manual from KNF also need to be observed.
1.5 Behaviour in case of malfunctions and irregularities
The appliance may only be used in a flawless condition. If you as the operator notice irregular­ities, malfunctions or damage, immediately take the appliance out of service and inform your superior.
1.6 Switching off the appliance in an emergency
Press the main switch on the pump module.
This disconnects the appliance from the power supply at all poles.
7
Putting into operation

2. Putting into operation

When operating the appliance for the first time, do not leave it unattended until it has reached a steady state.
2.1 Connecting the vacuum pump
Connect the vacuum pump’s 230 V plug with earthing contact to the internal socket in the pump module.
2.2 Connecting the appliance
NOTICE
For connection, please observe the national regulations. Observe the connection and power ratings (see nameplate and technical data).
Make sure to establish a safe PE conductor connection. Place the power cable so that
► It is easily accessible at all times and can
be pulled out quickly, for example in case of a malfunction or emergency;
► It does not represent a trip hazard; ► It cannot come into contact with any
hot parts.
8
2.3 Connecting the vacuum pump to the VO
The connection for the signal lead (left) and the connection for the vacuum hose (right) can be found at the rear of the PM.
Connect the vacuum oven and the pump module to the signal lead and the vac­uum hose as described in the operating manual for the MEMMERT vacuum oven.
2.4 Switching on
1. Press the main switch for the vacuum pump.
Putting into operation
2. Press the main switch for the pump module.
9
Technical data

3. Technical data

Appliance size 29 49 101
Appliance width D [mm] 550 550 710
Appliance height E [mm] 600 680 760
Appliance depth F [mm] 400 480 550
Depth of door lock [mm] 38
Weight without/with pump [kg] 25 / 33 30 / 38 41 / 49
Power [W]* 140
Current consumption [A]* 1,9
*All other technical data can be found in the operating and installation manual for the KNF pump which follows

4. Spare parts and service

In the event of a malfunction or if the pre-installed membrane vacuum pump requires mainte­nance or service work, contact the Customer Service department at Memmert.
The spare parts required for complete maintenance of the pump head are available from Memmert under the following order number:
► E07534 spare parts kit for membrane

5. Maintenance and cleaning

Depending on the customer process, condensate may accumulate in the collection con­tainer of the pump module. No condensate can be sucked in by the pump. Check and empty the container regularly.
5.1 Emptying the collection container
1. Unscrew and remove the ducts from the collection container.
2. Remove the collection container from the holder and empty it.
3. Insert the collection container into the holder and attach the ducts.
10
Operating and installation information

6. Operating and installation information

Information about the assembly and functionality of the pre-installed KNF vacuum pump N950.50 KNE-W can be found in the manufacturer’s original operating manual (provided).
11
Operating and installation information
KNF 125530-316634 06/18
LAB
PJ25481-950.50.18
ENGLISH
TRANSLATION OF ORIGINALINSTALLATION
INSTRUCTIONS
DIAPHRAGM PUMP
Note! Before operating the pump and the accessories, please read the operating instructions and pay attention to the safety precautions!
12
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
About this document.................................................................3
1.
2. Use............................................................................................4
3. Safety........................................................................................ 6
4. Technical Data.......................................................................... 8
5. Design and function................................................................10
6. Installation and connection..................................................... 11
7. Operation................................................................................15
8. Servicing................................................................................. 20
9. Troubleshooting......................................................................28
10. Returns ................................................................................. 300
11. Health and safety clearance and decontamination form...... 311
13
A danger is located here. Possible consequences of a failure to observe the
warning are Warning, indicates the danger level.
Signal word
Meaning
Consequences if not observed
DANGER
warns of immedi-
Death or serious injuries and/or
WARNING
warns of possible
Death or serious injuries and/or
CAUTION
warns of a possi-
Minor injuries or damage are
This symbol refers to important infor mation.
Diaphragm pump PJ25481-950.50.18 About this document
1. About this document
1.1. Using the Installation Instructions
The Installation Instructions are part of the pump. Carefully study the Installation Instructions before using the
pump.
Always keep the Installation Instructions handy in the work
area.
Pass on the Installation Instructions to the next owner.
1.2. Symbols and markings
Warning
specified here. The signal word, e.g.
WARNING
Measures for avoiding the danger and its conse­quences are specified here.
Danger levels
Tab. 1
Other information and symbols
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.
Original-Installation Instructions, english, KNF 125 53 0-3166 34 06/18 3
14
ate danger
danger
bly dangerous situation
Additional, consecutively numbered steps follow.
serious damage are the conse­quence.
serious damage are possible.
possible.
Use Diaphragm pump PJ25481-950.50.18
Operating parameter and
Requirements for
Accessories
2. Use
2.1. Proper use
The pumps are exclusively intended for transferring gases and va­pors.
Owner’s responsibility
conditions
transferred medium
Only install and operate the pumps under the operating parameters and conditions described in Chapter 4. Technical Data.
Make sure that the installation location is dry and the pump is pro­tected against rain, splash, hose and drip water as well as other pollutions.
The gas-tightness of the connections between the application pipes and the pump (or the pump connection) must be checked regularly; with leaky connections, there is a danger that hazardous gases or vapors may escape from the pump system.
Before using a medium, check whether the medium can be trans­ferred danger-free in the specific application case.
Before using a medium, check the compatibility of the materials of the pump head, diaphragm and valves with the medium.
Only transfer gases which remain stable under the pressures and temperatures occurring in the pump.
Laboratory equipment or additional components connected to a vacuum pump system have to be suitable for use with the pneu­matic capabilities of the pump. (see Chapter 4. Technical Data).
4 Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18
15
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 5
Diaphragm pump PJ25481-950.50.18 Use
2.2. Improper use
The pumps may not be operated in an explosive atmosphere. The pumps are not suitable for transferring dusts. The pumps are not suitable for transferring liquids. The pumps are not suitable for transferring aerosol. The pumps are not suitable for transferring biological and microbio-
logical substances. The pumps are not suitable for transferring fuel. The pumps are not suitable for transferring explosive and combus-
tible materials. The pumps are not suitable for transferring fibers. The pumps are not suitable for transferring oxidizing agent. The pumps are not suitable for transferring foodstuffs. The pumps must not be used to create vacuum and overpressure
simultaneously. Pumps designed to create either a vacuum or an overpressure
must not be used for these two purposes simultaneously. An overpressure must not be applied to the suction side of the
pump.
16
Safety Diaphragm pump PJ25481-950.50.18
Note the safety precautions in Chapter 6. Installation and con­nect
Personnel
Working in a safety
Handling dangerous media
Handling combustible media
3. Safety
ion and 7. Operation.
The pumps are built according to the generally recognized rules of the technology and in accordance with the occupationa l saf et y and accident prevention regulations. Nevertheless, dangers can result during their use which lead to injuries to the user or others, or to damage to the pump or other property.
Only use the pumps when they are in a good technical and proper working order, in accordance with their intended use, observing the safety advice within the Installation Instructions, at all times.
Components connected to the pump must be designed to with­stand the pneumatic performance of the pump.
Take care that safety regulations are observed when connecting the pump to the electricity supply.
Make sure that only trained and instructed personnel or specially trained personnel work on the pumps. This especially applies to assembly, connection and servicing work.
Make sure that the personnel has read and understood the Instal­lation Instructions, and in particular the “Safety” chapter.
conscious manner
Observe the accident prevention and safety regulations when per­forming any work on the pump and during operation.
Do not expose any part of your body to the vacuum. Ensure that the pump is separated from the mains and is de-ener-
gized. The pump heads heat up during operation – avoid contact with
them. Make sure that there are no hazards due to flow with open gas
connections, noises or hot gases . Ensure that an EMC-compatible installation of the pump is ensured
at all times and that this cannot lead to a hazardous situation. When transferring dangerous media, observe the safety regula-
tions when handling these media. If the diaphragm ruptures, the transferred medium will mix with the
air in the environment. Take all necessary care to prevent this leading to a dangerous situ­ation.
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 ignition temperature of the medium, to avoid ignition or ex­plosion. This also applies for unusual operational situations.
Note that the temperature of the medium increases when the pump compresses the medium.
6 Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18
17
Environmental protection
Standards
Customer service and
Diaphragm pump PJ25481-950.50.18 Safety
Hence, make sure the temperature of the medium is sufficiently be­low the ignition temperature of the medium, even when it is com­pressed to the maximum permissible operating pressure of the pump. The maximum permissible operating pressure of the pump is stated in the technical specifications (Chapter 4).
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. Store all replacement parts in a protected manner and dispose of
them properly in accordance with the applicable environmental pro­tection regulations. Observe the respective national and interna­tional regulations. This especially applies to parts contaminated with toxic substances.
The pumps conform to the Directive 2011/65/EU (RoHS2). The pumps conform to the safety regulations of the EC Directive
2014/30/EU concerning Electromagnetic Compatibility and the EC Directive 2006/42/EC concerning Machinery.
The following harmonized standards have been used:
DIN EN 61010-1DIN EN 61326-1 Class ADIN EN 50581
The pumps correspond to DIN EN 60664-1:
The overvoltage category IIThe pollution degree 2
repairs
The pump is maintenance-free. But KNF recommends, checking the pump regularly with regard to conspicuous changes in noise and vibrations.
Only have repairs to the pumps carried out by the KNF Customer Service responsible.
Housing with voltage-caring parts may be opened by technical per­sonnel only.
Use only genuine parts from KNF for servicing work. Use only the original KNF power supply.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 7
18
Technical Data Diaphragm pump PJ25481-950.50.18
Assembly
Material
Diaphragm
PTFE coated
Valve plates
FFPM
O-ring
FPM (head 1-3) Head plate
PPS
Intermediate plate
PPS
Parameter
Value
Max. permissible operating
-
Ultimate vacuum [mbar abs.]
2.0
Delivery rate at atm. pressure
55.0 Pump type
Value
PJ25481-950.50.18
Hose ID 10
Parameter
Value
Automatic voltage selection
100-240 V Max. current consumption [A]
1.9
Max. power consumption [W]
140
Maximum permitted mains
± 10% Protection class Motor
IP 20
Protection class Pump
IP 20
The pump is supplied by a universal power supply with inte­grated overload They are protected against overheating by a temperature sen­sor on the motor board and equipped with overcurrent protec­tion. If one of these safety functions is triggered, the pump will shut down and must be manually reset, as follows:
  Remove the cause(s) of the fault before restarting.
4. Technical Data
Pump materials
FFPM (head 4)
Tab. 2
Pneumatic values
pressure [bar g]
with closed gas ballast
and 5V control voltage [l/min]*
Tab. 3 *Liters in standard state (1013 mbar)
Pneumatic Connections
Tab. 4
Electrical data
voltage fluctuations
Tab. 5
Separate pump from mains.
8 Translation of original Inst al lat ion Ins truc ti ons , english, KNF 125530-316634 06/18
50 – 60 Hz
protection.
be
19
Pump type
Value
PJ25481-950.50.18
Approx. 7.2 kg
Parameter
Value
Permissible ambient tempera-
+ 10°C to + 40°C
Permissible media tempera-
+ 5°C to + 40°C Dimensions
See Fig. 3, Chapter 6.1
Maximum permissible ambient
80% for temperatures up to Max. altitude of site:
2000
Diaphragm pump PJ25481-950.50.18 Technical Data
Weight
Tab. 6
Other parameters
ture
ture
relative humidity
[m above sea level]
Tab. 7
31°C, decreasing linearly to 50% at 40°C.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 9
20
Design and function Diaphragm pump PJ25481-950.50.18
10 Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18
1 Inlet (suction side)
1 Outlet valve
5. Design and function
Design
2 Outlet (pressure side) 3 Power switch, removable
mains cable
4 Sub-D-plug (motor control)
Fig. 1: Design PJ25481-950.50.18
Function Diaphragm Pump
2 Inlet valve 3 Transfer chamber 4 Diaphragm 5 Eccentric 6 Connection rod 7 Pump drive
Fig. 2: Pump head
Diaphragm pumps transfer, compress (depending on pump ver­sion) and evacuate gases and vapors.
The elastic diaphragm (4) is moved up and down by the eccentric (5) and the connection rod (6). In the downward stroke it aspirates the gas to be transferred via the inlet valve (2). In the upward 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.
21
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 11
The IP protection class of the pump motor is indicated on the type plate.
Mounting dimensions
Cooling air supply
Installation location
Diaphragm pump PJ25481-950.50.18 Installation and connection
6. Installation and connection
Only install and operate the pumps under the pneumatic operating parameters and conditions described in Chapter 4, Technical Data.
Observe the safety precautions (see Chapter 3).
6.1. Installation of the pump
Choose a safe location (flat surface) for the pump.Before installation, store the pump at the installation location to
bring it up to ambient temperature.
See Fig. 3 for mounting dimensions.
Fig. 3: Mounting dimensions PJ25481-950.50.18 (All dimensional toler­ances conform to DIN ISO 2768-1, Tolerance Class V)
Install the pump so that the motor fan can intake sufficient
cooling air.
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water as well as other pollutions.
Make sure, that the installation location is accessible for
maintenance and service.
Install the pump at the highest point in the system to prevent
condensate from collecting in the pump head.
Protect the pump from dust.
22
Installation and connection Diaphragm pump PJ25481-950.50.18
Personal injury and/or damage to property because of vibration
In conjunction with adjacent components, vibration of the pump may result in crushing and/or damage to these components.
Foreign matter protection
Protect the pump against grease and oils.Protect the pump from vibrations and jolts.
WARNING
Make sure that vibrations of the pump do not re­sult in hazards associated with adjacent compo­nents.
Protect the pump against contact and intrusion of foreign mat-
ter.
12 Translation of original Installation Instructions , english, KNF 125530-316634 06/18
23
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 13
Extreme danger from electrical shock
Only have the pump connected by an authorized
The voltage must not vary by more than + 10% and – 10% from that shown on the type plate.
Ensure sufficient dimensioning of the connection cables.
Personal injury or damages to property by ejected protective
If the pump hasn’t been removed, it could be ejected be­cause of the overpressure during operation.
Connected
Pump exhaust
Diaphragm pump PJ25481-950.50.18 Installation and connection
6.2. Electrical connection
specialist.
DANGER
When connecting the device to a power source, the relevant
standards, directives, regulations, and technical standards must be observed.
Connecting pump
1. Compare the supply data with the data on the motor plate. For maximum operating current of the pump see pump’s type plate.
2. Insert the mains cable plug into a properly installed shockproof socket.
6.3. Pneumatic connection
CAUTION
Only have the pump connected when the power supply is disconnected.
plugs
protective plug at the pressure side of the
Remove the protective plug during the installa­tion.
Only connect components to the pump which are designed for
components
24
the pneumatic data of the pump (see Chapter 4, Technical Data).
If the pump s used as a vacuum pump, safely discharge the
pump exhaust at the pump’s pneumatic outlet.
Installation and connection Diaphragm pump PJ25481-950.50.18
A marking on the pump head shows the direction of flow.
Confusion between suction and pressure sides can lead to breakage of connected components on the suction and pres­sure sides.
Connecting pump
1. Remove the protective plugs from the hose connection threads.
2. Connect the suction line and pressure line (see Chapter 4, Tab. 7 for mounting dimensions).
3. Lay the suction and pressure line at a downward angle to pre­vent condensate from running into the pump.
25
Operational requirements
Pump
All hoses attached properly.
Danger of burns from hot pump parts or hot medium During or after operation of the pump, some pump
parts may be hot.
 
Injury of the eyes During excessive approach to the inlet or outlet of
the pump, the eyes could be injured by the upcoming vacuum or overpressure.
Diaphragm pump PJ25481-950.50.18 Operation
7. Operation
7.1. Initial start-up
Fan openings not blocked.Specifications of the power supply corre-
spond with the data on the pump’s t ype plate.
Ensure that the pump outlet is not closed or
constricted.
Tab. 8
7.2. Start up
WARNING
WARNING
Only operate the pumps under the operating parameters and
conditions described in Chapter 4. Technical Data.
Make sure the pumps are used properly (see Chapter 2.1).Make sure the pumps are not used improperly (see Chapter
2.2).
Observe the safety precautions (see Chapter 3).
Allow the pump to cool after operation. Take safety precautions against the contact of hot parts/media.
Don’t look into the pump’s inlet or outlet during the operation.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 15
26
Operation Diaphragm pump PJ25481-950.50.18
Hazard of the pump head bursting due to excessive pressure increase
 
Only throttle or regulate the air or gas quantity in
Excessive pressure (with all of the related hazards) can be pre­vented by placing a bypass line with a pressure tween the pressure and suctions sides of the pump. For further information, contact our technical adviser (contact data: see www.k
Automatic starting can cause personal injury and pump damage
When the operation of the pump is interrupted by the thermal sors, the pump will restart automatically after cooling down.
The pump may not start up against pressure during switch-on. This also applies in operating following a brief power failure. a
This activates the
overload switch and the pump switches off.
Depending on the applied electrical voltage, initialization of the electronics may take up to one second before the pump starts.
Pump standstill
Do not exceed max. permissible operating pres-
WARNING
With the pump at a standstill, open pressure and suction lines to normal atmospheric pressure.
sure (see Chapter 4. Technical Data. Monitor pressure during operatio n. If the pressure exceeds the maximum permissi­ble operating pressure, immediately switch off pump and eliminate fault (see Chapter bleshooting).
the suction line to prevent the maximum permis­sible operating pressure from being exceeded. If the air or gas quantity in the pressure line is throttled or regulated, make sure that the maxi­mum permissible operating pressure is not ex­ceeded. Ensure that the pump outlet is not closed or con­stricted.
nf.com).
9. Trou-
-relief valve be-
WARNING
7.3. Switching Pump on/off
16 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
Switching pump on
pump starts against pressure, it may block.
Make sure that normal atmospheric pressure is present in the
lines during switch-on.
Pumpe am Netzschalter einschalten (siehe Fig. 1/3 in Kapitel
5).
switch or the trigging device for PTC sen-
Take all necessary care to prevent this leading to a dangerous situation.
If
27
Elektrische Anschlüsse / Electrical connection
Litzenbelegung / lead assignment
Signalname
5V Ausgangsspannung
Masse
Masse
Ausgangssignal Drehzahl
Versorgung Gasballastventil
Eingangssignal Drehzahlregelung
Ausgangssignal Fehler
Eingangssignal Remote EIN/AUS
Masse Gasballastventil
5V Ausgangsspannung U5V/ 5V Power supply U
Ausgangsspannung DC
Max. Ausgangsstrom
Diaphragm pump PJ25481-950.50.18 Operation
External actuation
Pin Nr. Funktion / function
1
2
3
4
5
6
7
8
9
5V power supply
Ground
Ground
Output signal speed
Supply gas ballast valve
Input signal speed control
Output signal fault
Input signal Remote ON/OFF
Ground gas ballast valve
Output voltage range DC
Max. current output
Tab. 9 (part 1): Connection plan motor electronics
signal name
U
5V
GND
GND
U
Spd
U
+GB
U
Ctrl
U
Flt
U
Rmt
U
-GB
5V
[V] 5 ± 0.2
[mA] 170
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 17
28
Operation Diaphragm pump PJ25481-950.50.18
Ausgangssignal Drehzahl U
/ Output signal speed U
Pulse pro Umdrehung
Pulstastverhältnis
PWM-Signal
PWM Frequenz
Ausgangspegel „high“
5
Ausgangspegel „low“
0
Max. Strombelastbarkeit
Ausgangsimpedanz @ 1 kHz
Eingangssignal Drehzahlregelung U
/ Input signal speed control U
Steuerspannungsbereich DC
Steuerspannungsbeschreibung:
min.
max.
Max. Eingangsspannung
Schwellenspannung
PWM Frequenzbereich
100
Eingangspegel „high”
5
Eingangspegel „low”
0
Tastgradbereich
Tastgradbeschreibung:
min.
max.
Eingangsimpedanz @ 1kHz
Analog
Pulses per revolution
Pulse duty cycle
PWM frequency
Output level „high“
Output level „low“
Max. current carrying capacity
Output impedance @ 1 kHz
Control voltage range DC
min. Pumpe min. Förderleistung max. Pumpe max. Förderleistung
Analog
Contol voltage description min. pump min. flow max. pump max. flow
Max. input voltage
Treshold voltage
PWM frequence range
Input level „high”
Input level „low”
PWM-Signal
Duty cycle range
min. Pumpe min. Förderleistung max. Pumpe max. Förderleistung
Duty cycle description min. pump min. flow max. pump max. flow
Input impedance @ 1kHz
Spd
Ctrl
Tab. 9 (part 2): Connection plan motor electronics
Spd
[-] 1
[%] 50 ± 1
[Hz] 50 ± 0.5
[V]
[V]
[4.1 … V5V]
[0 … 0.6]
[mA] 10
[kΩ] ≥ 9
Ctrl
[V] 0 … 5
[V]
0.1 5
[V] 5.5
[mV] 25 ± 0.5
[Hz]
[V]
[V]
[50 … 150]
[4.2 … 5.5]
[0 … 0.9]
[%] 0 … 100
[%]
2 100
[kΩ] ≥ 12
18 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
29
Ausgangssignal Fehler U
/ Output signal fault U
Eingangspegel „high“ Fehler vorhanden
5
Eingangspegel „low“ kein Fehler
0
Max. Strombelastbarkeit
Ausgangsimpedanz @ 1kHz
Eingangssignal Remote EIN/AUS U
/ Input signal Remote ON/OFF U
Eingangspegel „high“ Motor EIN
5
Eingangspegel „low” Motor AUS
0
Eingangsimpedanz @ 1 kHz
Versorgung Gasballastventil U
/ Supply gas ballast valve U
Steuerspannung DC
Max. Stromaufnahme
To start the motor, Pin 5 must be bridged to the ground of the controller connection.
Adjusting the flow rate
Remote ON/OFF
Vapors as media
Diaphragm pump PJ25481-950.50.18 Operation
Flt
Input level „high“ error detected
Input level „low“ no error
Max. current carrying capacity
Output impedance @ 1kHz
Input level „high“ motor ON
Input level „low” motor OFF
Input impedance @ 1 kHz
Control voltage DC
Max. current consumption
Flt
[V]
[V]
[3.9 … 5.5]
[0 … 0.9]
[mA] 10
[kΩ] ≥ 9
Rmt
[V]
[V]
Rmt
[3.9 … 5.5]
[0 … 0.9]
[kΩ] ≥ 1.8
+GB
+GB
[V] 24 ± 10%
[mA] ≤ 50
Tab. 9 (part 3): Connection plan motor electronics
The flow rate can be varied by an external actuation (Sub-D-plug, see Tab. 9).
The speed of the pump is controlled by a control voltage. Please contact our KNF customer service for further information. Remote ON/OFF is through an 9-pin controller connection (Pin 8,
see Tab. 9).
Please contact our KNF customer service for further information.
Switching off the pump
The life of the diaphragm is prolonged the formation of condensate is avoided. Therefore the following precautions should be taken:
Run the pump for a few minutes to warm it up before handling
saturated or nearly saturated vapors.
KNF recommends: When transferring aggressive media, flush
the pump prior to switch off (see Chapter 8.2.1) to increase the service life of the diaphragm.
Switch off pump with power switch (Fig. 1 at Chapter 5).Restore the system to normal atmospheric pressure (release
pneumatic pressure in pump).
Pull out the pump’s main plug.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 19
30
Servicing Diaphragm pump PJ25481-950.50.18
Component
Servicing interval
Pump-Regular inspection for external
damage or leaks
Hose connections
Regular inspection for external damage or leaks
Diaphragm and valve
Replace when pumping capacity
Silencer-Change if it is dirty
When cleaning, make sure that no liquids enter the inside of the housing.
Dangerous substances in the pump can cause a health hazard.
Depending on the substance transferred, caustic burns or poisoning are possible.
Danger of burns from hot pump parts The pump head or motor may be hot even after the
pump has been shut off.
Requirements
8. Servicing
8.1. Servicing schedule
-
plates
Tab. 10
8.2. Cleaning
8.2.1. Flushing pump
Before switching off the pump, flush it with air (or with inert gas
if required for safety reasons) under atmospheric conditions (ambient pressure) for about five minutes.
8.2.2. Cleaning pump
Pump disconnected from mains and de-energized.
-
decreases, or sooner
WARNING
CAUTION
Solventshould be used for cleaning only if the head materials
are not corroded (ensure compatibility of the material).
If compressed air is available, blow out the parts.
20 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
Wear protective clothing if necessary, e.g. pro­tective gloves. Take the proper steps to clean the pump.
Allow the pump to cool off after operation.
31
Spare part/tool
Spare parts set according to spare parts list, Chapter 10
Allen key 2-mm (hexagon)
Phillips screwdriver No. 2
Allen key 4-mm (hexagon)
Felt-tip pen
Dangerous substances in the pump can cause a health hazard.
Depending on the substance transferred, caustic burns or poisoning are possible.
Danger of burns from hot pump parts The pump head or motor may be
pump has been shut off.
Requirements
Spare parts/tools
Information on procedure
Diaphragm pump PJ25481-950.50.18 Servicing
8.3. Replacing diaphragm and reed valves
Pump disconnected from mains and de-energizedPump is clean and free of hazardous materials.Hoses removed from pump’s pneumatic inlet and outlet.
Tab. 11
Always replace diaphragm and valve plates together to main-
tain the pump performance.
WARNING
Wear protective clothing if necessary, e.g. pro­tective gloves. Flush the pump before replacing the diaphragm and valve plates (see Chapter 8.2.1).
CAUTION
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 21
32
hot even after the
Allow the pump to cool off after operation.
Servicing Diaphragm pump PJ25481-950.50.18
1 8x attachment screws
2 3
4 5 6 7 8 9
10
11 2x connection blocks .50 12 13 14 15
16 17 18
19 20
Fig. 4: Exploded drawing PJ25481-950.50.18
22 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
(head cover) 4x head screws 16x attachment screws
(head) 4x head plates 8x O-rings (ø24 x 2) 4x intermediate plates 4x diaphragms 1x connection cover 4x attachment screws
(connection cover)
2x attachment screws
(connection .50)
Removing the pump head
1. Undo the eight screws (Fig. 4/1) and remove the head covers (20).
2. Undo the connection cover’s (8) attachment screws (Fig. 5/9) and remove the connection cover.
3. Remove the head connection’s (11) and (14) screws (10) and (15) and remove the head connections.
2x O-rings (ø7,65 x1,78) 2x flat seals 2x connection blocks .1.2 2x attachment screws
(connection .1.2) 8x valve plates 6x valve plates 6x O-rings (ø18,77 x
1,78) 6x O-rings (ø10 x 2,5) 2x head covers
33
Diaphragm pump PJ25481-950.50.18 Servicing
Fig. 5: Disassembling the head connections
4. Remove O-rings (Fig. 6/12) and flat seals (13).
Fig. 6: Marking the pump
5. Head 1 (Fig. 6/I): Use a felt-tip pen to apply a single mark (M) to the head plate, intermediate plate, and compressor housing.
6. Head 2 (Fig. 6/II): Use a felt-tip pen to apply two marks (M) to the head plate, in­termediate plate, and compressor housing.
7. Head 3 (Fig. 6/III): Use a felt-tip pen to apply three marks (M) to the head plate, intermediate plate, and compressor housing.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 23
34
Servicing Diaphragm pump PJ25481-950.50.18
During re-assembly, refer to the marks on the individual heads to ensure th
8. Head 4 (Fig. 6/IIII): Use a felt-tip pen to apply four marks (M) to the head plate, in­termediate plate, and compressor housing.
at the parts are properly re-assembled.
9. Undo the 16 attachment screws (Fig. 4/3) on the heads (1 to 4) and remove the heads (1 and 2 as well a s 3 and 4).
10. Pull apart heads 1 (Fig. 7/I) and 2 (II) and heads 3 (III) and 4 (IIII) and remove O-rings (19).
Fig. 7: Removing the o-rings
11. On all four heads, undo the head screw (Fig. 8/2) in the head plate (4) and remove head plate from the intermediate plate (6).
24 Translation of original Installation Instructions , english, KNF 125530-316634 06/18
35
Use caution to prevent the diaphragm spacers (21) located be­tween the diaphragm and the connecting rod from falling into the pump housing. The diaphragm and the connecting rod from falling into the housing. The diaphragm spacers ( installed in the same quantity as before in order to ensure th pump’s pneumatic performance.
Diaphragm pump PJ25481-950.50.18 Servicing
Fig. 8: Exploded drawing of pump heads 1 and 2
Replacing the diaphragms and valve plates
1. Manually remove the four diaphragms (Fig. 9/7) by turning them in the counterclockwise direction.
Fig. 9: Replacing diaphragm
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 25
36
21) must be e
Servicing Diaphragm pump PJ25481-950.50.18
Before you finally tighten the diaphragms, you are recom­mended to move the diaphragm to the upper dead center.
The upper and lower sides of the valve plates are identical.
When inserting the O-rings, make sure that they are the correct size and color (head 4: black O
Refer to for arrangement and alignment of disk springs and the screw’s washer.
When inserting the O-rings, make sure that they are the correct size and color (head 4: black O
2. Remove from the intermediate plates (Fig. 8/6) the valve plates (16) and (17) and the O-rings (5) and (18).
3. Manually screw the ne diaphragms (Fig. 9/7) into the connect­ing rod’s threads and tighten to hand tightness.
4. Insert the new valve plates (Fig. 8/16) and (17) and the new O- rings (5) and (18) into the intermediate plates (6).
-rings).
Install intermediate plates and head cover
1. Place head plate (Fig. 8/4) onto the interm ediate pla te s (6), ob­serving the felt-tip pen marks (Fig. 6/M).
2. With your hands, carefully and lightly tighte n the head plat e’s head screw (Fig. 8/2) on all four heads (tightening torque: 60 Ncm).
-rings).
3. Place three O-rings (Fig. 7/19) into each of the head connec­tion holes.
4. Press together heads 1 and 2 (Fig. 6/I and II) and heads 3 and
Fig. 10: Aligning the
disk spring
4 (III and IIII).
5. Place heads 1 and 2 and h eads 3 and 4 onto the compressor housing; alternately tighten attachment screws (Fig. 4/3) to hand-tightness (tightening torque: 3.5 Nm).
6. Insert O-rings (Fig. 6/12) and flat seals (13) into the head con­nection receiver.
7. Reinstall the head connections: To do this, manually tighten the head connections’ attachment screws (Fig. 5/10 and 15).
8. Reinstall the head connection cover (8): To do this, manually tighten the head connection cover’s at­tachment screws (9).
9. Reinstall the head covers (Fig. 4/20): To do this, manually tighten the eight attachment screws (1).
10. Properly dispose of the old diaphragms, valve plates, and O­rings.
26 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
37
Before you finally tighten the diaphragms, you are recom­mended to move the diaphragm to the upper dead center.
The upper and lower sides of the valve plates are identical.
When inserting the O-rings, make sure that they are the correct size and color (head 4: black O
Refer to for arrangement and alignment of disk springs and the screw’s washer.
When inserting the O-rings, make sure that they are the correct size and color (head 4: black O
Servicing Diaphragm pump PJ25481-950.50.18
2. Remove from the intermediate plates (Fig. 8/6) the valve plates (16) and (17) and the O-rings (5) and (18).
3. Manually screw the ne diaphragms (Fig. 9/7) into the connect­ing rod’s threads and tighten to hand tightness.
4. Insert the new valve plates (Fig. 8/16) and (17) and the new O- rings (5) and (18) into the intermediate plates (6).
-rings).
Install intermediate plates and head cover
1. Place head plate (Fig. 8/4) onto the intermediate plates (6), ob­serving the felt-tip pen marks (Fig. 6/M).
2. With your hands, carefully and lightly tighte n the head plat e’s head screw (Fig. 8/2) on all four heads (tightening torque: 60 Ncm).
-rings).
3. Place three O-rings (Fig. 7/19) into each of the head connec­tion holes.
4. Press together heads 1 and 2 (Fig. 6/I and II) and heads 3 and
Fig. 10: Aligning the
disk spring
4 (III and IIII).
5. Place heads 1 and 2 and h eads 3 and 4 onto the compressor housing; alternately tighten attachment screws (Fig. 4/3) to hand-tightness (tightening torque: 3.5 Nm).
6. Insert O-rings (Fig. 6/12) and flat seals (13) into the head con­nection receiver.
7. Reinstall the head connections: To do this, manually tighten the head connections’ attachment screws (Fig. 5/10 and 15).
8. Reinstall the head connection cover (8): To do this, manually tighten the head connection cover’s at­tachment screws (9).
9. Reinstall the head covers (Fig. 4/20): To do this, manually tighten the eight attachment screws (1).
10. Properly dispose of the old diaphragms, valve plates, and O­rings.
26 Translation of original Installation Instr uct ions , english, KNF 125530-316634 06/18
38
Diaphragm pump PJ25481-950.50.18 Servicing
Final steps
1. Reconnect suction and pressure line on the pump.
2. Reconnect the pump to the mains.
If you have any questions about servicing, call your KNF technical adviser (contact data: see www.knf.com).
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 27
39
Extreme danger from electrical shock!
Pump does not transfer
Cause
Fault remedy
Pump not connected to the
Connect pump to the mains. No voltage in the mains.
Check room fuse and switch on if necessary.
The motor board’s overcur-
Separate pump from the mains.
The pump must be separated from the mains for several seconds before the electronics will permit restarting.
Connections or hoses are
Check hoses and connections.
External valve is closed or filter
Check external valves and filters.
Condensate has collected in the
Detach the condensate source from the pump.
Diaphragm or valve plates are
Replace diaphragm and valve plates (see Chapter 8.3).
Flow rate, pressure or vacuum too low
Cause
Fault remedy
Condensate has collected in the
Detach the condensate source from the pump.
Presence of positive pressure
Change the pressure conditions.
Cross-section of pneumatic
Disconnect the pump from system and determine output
If applicable, use larger-diameter hoses or connectors.
Leaks in connections, hoses or
Make sure the hoses and connections.
Pump head components are
Clean head components.
Troubleshooting Diaphragm pump PJ25481-950.50.18
9. Troubleshooting
Disconnect the pump power supply before work­ing on the pump.
DANGER
Check the pump (see Tab. 12 and Tab. 13).
mains.
Make sure the pump is de-energized and se­cure.
rent protection circuit has activated.
Maximum temperature of
motor board is exceeded.
Maximum blocking time of
the rotor is exceeded.
blocked.
is clogged.
pump head.
worn.
The pump does not achieve the output specified in the Technical data or the data sheet.
pump head.
on the pressure side with simul­taneous vacuum or positive pressure on the suction side.
hoses or connectors too narrow or restricted.
pump head.
soiled.
Determine and remove the cause of the overcurrent (for ex-
ample: improper pressure, liquid in the pump heads).
  Remove blockage.
Flush the pump (see Chapter 8.2.1).
Tab. 12
  Flush the pump (see Chapter 8.2.1).
values.
Remove restriction (e.g. valve) if necessary.
Remove any parts or particles causing blockages.
28 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
40
Diaphragm pump PJ25481-950.50.18 Troubleshooting
Pump head components are
Clean head components.
Diaphragm or valves plates are
Replace diaphragm and valve plates (see Chapter 8.3).
Diaphragm and valve plates
Make sure that the shim rings have been replaced onto the
Check head connection and hose connections for leaks.
soiled.
worn.
have been replaced.
diaphragm screw thread.
Tab. 13
Fault visualization on motor controller
The excess of the overcurrent limit, the excess of the maximum temperature of the motor board or the blocking of the rotor is shown as a fault. A red LED on the BLDC motor controller signals the cause of the fault.
Optional settings: If desired, the motor controller can be programmed so that the er­ror output voltage exhibits the same characteristics as the LED. With factory settings, only 1 or 0 are logically outputted as voltage at the fault output.
Fig. 11: LED blinking duration according to different faults
To delete the error condition the motor has to be disconnected from the mains.
Fault cannot be rectified
If you are unable to identify the cause of the problem, please send the pump to KNF customer services (contact data: see www.knf.com).
1. Flush the pump (see Chapter 8.2.1).
2. Clean the pump (see Chapter 8.2.2).
3. Send the pump, together with completed Health and Safety Clearance and Decontamination Form (Chapter 12), to KNF stating the nature of the transferred medium.
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 29
41
Returns Diaphragm pump PJ25481-950.50.18
10. 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 sub­stances.
For this reason, customers who send any pumps or systems back to KNF must submit a Health and safety clearance and decontami­nation form in order to avoid a hazardous situation for KNF em­ployees. This Health and safety clearance and decontamination form provides the following information, among other things:
physiological safetywhether medium-contacting parts have been cleanedwhether the equipment has been decontaminatedmedia 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 decon­tamination 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 (contact data: see www.knf.com). 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 packaging.
The template for Health and safety clearance and decontamination 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 Declaration to the device that is sent to KNF.
In addition to the customer’s declaration of physiological safety, in­formation about operating conditions and der customer’s applica­tion 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.
.
30 Translation of original Installation Instruct ions , english, KNF 125530-316634 06/18
42
Diaphragm pump PJ25481-950.50.18 Health and safety clearance and decontamination form
11. Health a nd s afe ty clearance and decon­tamination form
Translation of original Instal lat ion Instr uc ti ons , english, KNF 125530-316634 06/18 31
43
48
Pump modul PM PMP
D39489 I Date 12/2019 englisch
Memmert GmbH + Co. KG Postfach 1720 | D-91107 Schwabach Tel. +49 9122 925-0 | Fax +49 9122 14585 E-Mail: sales@memmert.com facebook.com/memmert.family
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