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, 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/.
MEMMERT GmbH + Co. KG
Willi-Memmert-Straße 90-96
D-91186 Büchenbach
Germany
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 qualifi ed 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 regu-lations for
occupational safety and environmental protection.
NOTICE
3
The operating manual of the MEMMERT vacuum oven contains important
information and instructions how to use the pump module. Followall possible information from the related operating manual of the vacuum oven
exactly.
MEMMERT GmbH + Co. KG
Willi-Memmert-Straße 90-96
D-91186 Büchenbach
Germany
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.
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.
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.
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.
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.
MEMMERT GmbH + Co. KG
Willi-Memmert-Straße 90-96
D-91186 Büchenbach
Germany
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.
Emptying the collection container
► Unscrew and remove the
ducts from the collection
container.
► Remove the collection con-
tainer from the holder and
empty it.
► Insert the collection container
into the holder and attach
the ducts.
7
MEMMERT GmbH + Co. KG
Willi-Memmert-Strasse 90-96
D-91186 Büchenbach
Germany
*All other technical data can be found in the operating and installation manual for the KNF
pump which follows
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.
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).
MEMMERT GmbH + Co. KG
Willi-Memmert-Straße 90-96
D-91186 Büchenbach
Germany
The pumps are exclusively intended for transferring gases and vapors.
Owner’s responsibility
Only install and operate the pumps under the operating parameters
conditions
transferred medium
and conditions described in Chapter 4. Technical Data.
Make sure that the installation location is dry and the pump is pro-
tected 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 Installation Instructi ons , english, KNF 125530-316634 06/18
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.
Translation of original Installation Instructi ons , english, KNF 125530-316634 06/18 5
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