32 WILOSE07-2016V05DINA4
English SAFETY
BEWARE of moisture!
Moisture penetrating the cable will damage
both the pump and the cable. Never immerse
the cable end in uid and always protect it
from moisture. Unused wires must be insu-
lated!
Ourpumpsareoperatedwithalternating
or three-phase current. The governing na-
tional directives, standards and regulations
(e.g.VDE0100)aswellastherequirementsofthe
local energy supply company must be observed.
The operator must be instructed in the electrical
power supply to the pump and how to shut it off.
A motor protection switch must be installed by
the customer for three-phase AC motors. It is ad-
visabletoinstallaresidual-currentdevice(RCD).
If there is a possibility that people can come into
contactwiththepumpandtheuid(forexam-
ple on construction sites), the connection must
be equipped with an additional residual-current
device(RCD).
The section entitled ‘Electrical connection’ must
be observed when connecting the product. The
technicalspecicationsmustbeobservedstrictly.
Ourpumpsmustalwaysbeearthed.
If the pump has been switched off by a protec-
tive device, it must not be switched on again
until the error has been corrected.
When the pump is connected to the electrical
control panel, particularly when electronic devices
such as soft start-up control or frequency con-
verters are used, the switchgear manufacturer’s
specicationsmustbefollowedtocomplywith
the electromagnetic compatibility (EMC) require-
ments. Special separate shielding measures
(e.g.shieldedcables,lters,etc.)maybeneces-
sary for the power supply and control cables.
Connections may only be made providing the
switchgear meets the harmonised EU standards.
Mobile radio equipment may cause malfunc-
tions in the system.
BEWARE of electromagnetic radiation!
Electromagnetic radiation can pose a fatal
risk for people with cardiac stimulators. Put
up appropriate signs and make sure anyone
affected is aware of the danger!
2.4. Safety and monitoring equipment
PumpswithEx-ratingareequippedwithather-
mal winding monitor. The pump is switched off if
the motor gets too hot during operation.
This device must be connected by an electrician
and checked to ensure that it functions correctly
before commissioning.
Personnel must be informed about the installed
systems and how they work.
CAUTION!
Never operate the pump if the monitoring
devices have been removed or damaged, or if
they do not work.
PumpswithoutEx-ratingarenotequippedwitha
thermal winding monitoring devices.
2.5. Conduct during operation
When operating the pump, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling elec-
trical machinery. To help ensure safe working
practice, the responsibilities of employees should
beclearlyspeciedbytheoperator.Allpersonnel
are responsible for ensuring that regulations are
observed.
Due to their design, centrifugal pumps have
rotating parts that are easily accessible. Depend-
ing on the operating condition, sharp edges can
develop on these parts.
WARNING: Danger of crushing and amputation
of limbs!
Sharp edges can form on the rotating parts in
the hydraulics. These can result in crushing
and amputation of limbs.
• Never reach into the hydraulics when the
machine is in operation.
• Before performing maintenance or repairs,
switch off the pump, disconnect it from the
mains and secure it against being switched on
again without authorization.
• Always allow the rotating parts to come to
astandstill!
2.6. Fluids
Eachuiddiffersinrespectofcomposition,cor-
rosiveness, abrasiveness, dry matter content and
in many other aspects. Generally, our pumps can
be used for many applications. Please note that if
requirements change (density, viscosity or general
composition), this can also affect many param-
eters of the pump.
When using or replacing the pump in a different
uid,observethefollowingpoints:
• Theuidcanbecontaminatedbyoilfromthe
sealing chamber and the motor if the mechanical
seal is defective.
Use in drinking water is not permitted!
• Pumps that have been operated in dirty waste
water must be cleaned thoroughly before being
usedforotheruids.
• Pumpsthathavebeenoperatedinuidsthatare
hazardous to health must be decontaminated
beforebeingusedwithotheruids.
Clarication must be sought as to whether the
pump can be used at all with another uid.
The pump must not be operated in sewage
containing faeces!
