D39489-BA-PM-EN.pdf - 第15页
15 D39489 | Date 12/2019 Use Diaphragm pump PJ25481 - 950.50.1 8 4 Translation of origina l Installation Ins tructions , english , KNF 125530 - 31 6634 06/18 2. Use 2.1. Proper use The pum ps are exclus ively intende d f…

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D39489 | Date 12/2019
Diaphragm pump PJ25481-950.50.18 About this document
Original-Installation Instructions, english, KNF 125530-316634 06/18 3
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
WARNING
A danger is located here.
Possible consequences of a failure to observe the
warning are
specified here. The signal word, e.g.
Warning, indicates the danger level.
Measures for avoiding the danger and its conse-
quences are specified here.
Danger levels
Signal word
Meaning
Consequences if not observed
DANGER
warns of immedi-
ate danger
Death or serious injuries and/or
serious damage are the conse-
quence.
WARNING
warns of possible
danger
Death or serious injuries and/or
serious damage are possible.
CAUTION
warns of a possi-
bly dangerous
situation
Minor injuries or damage are
possible.
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.
Additional, consecutively numbered steps follow.
This symbol refers to important information.

15
D39489 | Date 12/2019
Use Diaphragm pump PJ25481-950.50.18
4 Translation of original Installation Instructions, english, KNF 125530-316634 06/18
2. Use
2.1. Proper use
The pumps are exclusively intended for transferring gases and va-
pors.
Owner’s responsibility
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 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 trans-
ferred 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 pneu-
matic capabilities of the pump. (see Chapter 4. Technical Data).
Operating parameter and
conditions
Requirements for
transferred medium
Accessories

16
D39489 | Date 12/2019
Diaphragm pump PJ25481-950.50.18 Use
Translation of original Installation Instructions, english, KNF 125530-316634 06/18 5
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.