Unauthorised Modes Of Operation; Magnet Rotor - KSB UPA Installation & Operating Manual

2 Safety
The motors of the UMA-S 150 and UMA-S 200 type series are fitted with strong
permanent magnets at the rotor.
▪ Observe the following safety instructions when dismantling / reassembling the
motor or when storing / transporting the magnet rotor.
– Users of electronic or magnetisable aids, e.g. pacemakers, hearing aids,
implants, etc. must not perform any work in the vicinity of the rotor. Keep a
safety distance of at least 0.3 m.
– Mark the working area with special warnings.
– Metal tools, keys, jewellery and similar items can be attracted by the
magnetic force.
– Electronic devices and data carriers, such as bank cards, security passes, etc.
can become damaged in the vicinity of the magnet rotor.
– The magnet rotor must only be machined (e.g. turned, milled, ground) by
trained specialist personnel.

2.8 Unauthorised modes of operation

Never operate the pump (set) outside the limits stated in the data sheet and in this
operating manual.
The warranty relating to the operating reliability and safety of the pump (set)
supplied is only valid if the equipment is used in accordance with its intended use.
(ð Section 2.2, Page 9)

2.9 Magnet rotor

DANGER
Strong magnetic field in the area of the magnet rotor of
UMA-S 150, UMA-S 200 or UMA-S 250 submersible motors
Danger of death for persons with pacemaker!
Interference with magnetic data carriers, electronic devices, components and
instruments!
Uncontrolled magnetic attraction forces between magnet-equipped components,
tools or similar!
▷ Keep a safety distance of at least 0.3 m.
Distance to assembled pump sets:
The safety distance refers to magnet-equipped rotors not yet installed in motors as
well as to loose magnets.
In installed condition the magnetic field is fully shielded so that an assembled motor /
pump set does not pose a hazard as a result of magnetic fields (even to persons with
pacemaker), neither during standstill nor during operation.
UPA / UPA S
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