Richter RMI Series - Manual (Page 5)

Series RMI
Page 5
9470-050-en Revision 00
TM 7978 Edition 08/2010
2 Safety
This operating manual contains fundamental
information which is to be observed during installation,
operation and maintenance.
It must be read before installation and
commissioning!
This operating manual must always be available at the
place of use of the machine/plant.
Observe the safety notes in all the chapters.
Installation, operation and maintenance are to be
performed by qualified staff.
The area of responsibility, authority and supervision of
the staff must be exactly regulated by the customer.
If the staff does not have the necessary expertise,
they are to be trained and instructed.
If necessary, this can be provided by the
manufacturer/supplier on behalf of the machine
operator.
General hazard symbol! People may be put
at risk.
Safety symbol! The pump and its function
may be put at risk if this safety symbol is not
observed.
EU marking! Explosion-protected equip-
ment must be identified for work in
potentially explosive areas.
Warning of a magnetic field!
Warning of electric power!
This warning sign must be used if people
with a pacemaker are at risk, e.g. from a
strong magnetic field.
It is imperative to observe signs attached directly to
the pump / unit, e.g.:
Direction of rotation arrow
Warning against dry-running
and they are to be kept legible.
Non-observance of the notes on safety may result
in the loss of any and all claims for damages.
Non-observance may involve the following hazards :
Failure of important functions of the machine/plant.
Failure of electronic equipment and measuring
instruments due to magnetic fields.
Risk to people and their personal property from
magnetic fields.
Risk to people from electric, mechanical and
chemical effects.
Risks to the environment through leaks of
hazardous substances.
If the unit is used in potentially explosive areas,
special attention is to be paid to the sections
identified with “Ex” in this operating manual.
2.1 Intended use
Richter pumps of the series RMI are plastic-lined
magnetic drive centrifugal pumps for the leak-free
conveyance of aggressive, toxic, pure and
inflammable liquids. The pump is equipped with a
permanent magnetic synchronous drive.
Only operate the pump / the unit in a technically
perfect condition.
Only use the pump with the media described in the
data sheet.
Vertical installation of the pumps is only possible
with pumps with grease-lubricated rolling bearings.
Please consult the manufacturer.
The observance of the specified physical limits is
important for perfect functioning and safe operation,
especially with regard to explosion protection to
prevent potential sources of ignition (see Chapter
2.6):
Avoid dry running.
Make sure that the pump is only operated with a
medium and not without one.
For safe pump operation, we recommend a flow
rate which lies between 0.3 and 1.1 Q
opt
. The
maximum operating temperature must never be
exceeded. Consult the manufacturer for operation
outside this range and observe Chapter 2.6.7.
The manufacturer must be consulted in the event
of entrainment of gas >2% as well as solids in
order to avoid a lack of lubrication and dry-running.
The plant NPSH value (NPSHA) should be 0.5 m
higher than the NPSH value of the pump
(NPSHR). See also Chapter 5.4.1.
Improper operation, even for brief periods,
may result in serious damage to the unit.
In connection with explosion protection, potential
sources of ignition (overheating, electrostatic and
induced charges, mechanical and electric sparks) can
result from these inadmissible modes of operation;
their occurrence can only be prevented by adhering to
the intended use.
Furthermore, reference is made in this connection to
the Directive 95/C332/06 (ATEX 118a) which contains
the minimum regulations for improving the
occupational health and safety of the workers who
may be at risk from an explosive atmosphere.
Do not operate the unit above the values
specified in the data sheet for the
fluid
flow rate
speed
density
head
operating temperature and
motor rating.