Beware of electrical current!
Incorrectly performed electrical work can result in
fatal injury! This work may only be carried out by a
qualified electrician.
Beware of damp!
Moisture penetrating cables can damage them
and render them useless. Furthermore, water can
penetrate into the terminal compartment or motor
and cause damage to the terminals or the winding.
Never immerse cable ends in the pumped fluid or
other liquids.
2.5.1. Electrical connection
When the machine is connected to the electrical control
panel, especially when electronic devices such as soft
startup control or frequency drives are used, the relay
manufacturer's specifications must be followed in order
to conform to EMC. Special separate shielding measures
e.g. special cables may be necessary for the power supply
and control cables.
The connections may only be made if the relays meet the
harmonized EU standards. Mobile radio equipment may
cause malfunctions.
Beware of electromagnetic radiation!
Electromagnetic radiation can pose a fatal risk for
people with pacemakers. Put up appropriate signs
and make sure anyone affected is aware of the
danger.
2.5.2. Ground connection
Our products (machine including protective devices and
operating position, auxiliary hoisting gear) must always be
grounded. If there is a possibility that people can come
into contact with the machine and the pumped liquid (e.g.
at construction sites), the grounded connection must be
additionally equipped with a fault current protection de-
vice. The electrical motors conform to motor protection
class IP 68 in accordance with the valid norms.
2.6. Operating procedure
When operating the product, always follow the locally
applicable laws and regulations for work safety, accident
prevention and handling electrical machinery. To help to
ensure safe working practice, the responsibilities of em-
ployees should be clearly set out by the owner. All per-
sonnel are responsible for ensuring that regulations are
observed. Certain parts such as the rotor and propeller
rotate during operation in order to pump the fluid. Certain
materials can cause very sharp edges on these parts.
Beware of rotating parts!
The moving parts can crush and sever limbs. Never
reach into the pump unit or the moving parts during
operation. Switch off the machine and let the moving
parts come to a rest before maintenance or repair
work!
2.7. Safety and control devices
Our products are equipped with various safety and con-
trol devices. These include, for example suction strainers,
thermo sensors, sealed room monitor etc. These devices
must never be dismantled or disabled. Equipment such as
thermo sensors, float switches, etc. must be checked by
an electrician for proper functioning before start-up (see
the "Electrical Connection" data sheet). Please remember
that certain equipment requires a decoder device or relay
to function properly, e.g. posistor and PT100 sensor. This
decoder can be obtained from the manufacturer or a spe-
cialist electronics dealer.
Personnel must be informed of the installations used and
how they work.
Caution!
Never operate the machine if the safety and monitor-
ing devices have been removed or damage, or if they
do not work.
2.8. Operation in an explosive atmosphere
Products marked as explosion-proof are suitable for opera-
tion in an explosive atmosphere. The products must meet
certain guidelines for this type of use. Certain rules of con-
duct and guidelines must be adhered to by the operator
as well. Products that have been approved for operation
in an explosive atmosphere are marked as explosion-pro-
tected "Ex" . In addition, an "Ex" symbol must be included
on the type plate! When used in an explosive atmosphere,
the additional chapter entitled "Explosion protection
according to the ...standard" must be observed!
2.9. Sound pressure
Depending on the size and capacity (kW), the products
produce a sound pressure of approximately 60 dB (A) and
110 dB (A). The actual sound pressure, however, depends
on several factors. These include, for example, the instal-
lation type (wet, dry, transportable), fastening of accesso-
ries (e.g. suspension unit) and pipeline, operating site, im-
mersion depth, etc. Once the product has been installed,
we recommend that the operator make additional mea-
surements under all operating conditions.
Caution: Wear ear protectors!
In accordance with the laws in effect, guidelines,
standards and regulations, ear protection must be
worn if the sound pressure is greater than 85 dB (A)!
The operator is responsible for ensuring that this is
observed!
2.10. Pumped fluids
Each pumped fluid differs in regard to composition, cor-
rosiveness, abrasiveness, TS content and many other
aspects. Generally, our products can be used for many
applications. For more precise details, see chapter 3, the
machine data sheet and the order confirmation. It should
be remembered that if the density, viscosity or the general
composition change, this can also alter many parameters
of the product. Different materials and impeller shapes
are required for different pumped fluids. The more exact
your specifications on your order, the more exactly we can
modify our product to meet your requirements.
ENGLISH | 31