15
KM70
ENG_DEBEM S.r.l.
Rev. 01A-EN
01/03/2021
2.8 Monitoring devices
The motor-pump unit must be operated only within the limits specified in the data sheet and on the plate.
If the operating system is unable to guarantee compliance with the parameters shown on the data
sheet, continuous monitoring devices must be used on the pump.
It is good to check if monitoring devices are required to ensure that the pump - motor unit is working
properly.
All electrically actuated accessories must be in conformity with applicable safety requirements and
regulations on explosion protection systems.
Take into consideration the following risks when choosing suitable monitoring equipment:
2.8.1 Interruption of the cooling flushing
The inner magnet is cooled by the process fluid through flushing holes located on the
bushings support. Due to some characteristics of the transported liquid, e.g. the high
viscosity, flushing could be interrupted, causing a dangerous in- crease in temperature.
2.8.2 Loss of synchrony between inner and outer magnet.
Overloading, overheating or non-compliance with design data can cause a lack of
synchronization of the inner and outer magnets. The thermal energy generated inside
the isolation shell or outer magnet can also cause a dangerous increase in temperature.
2.8.3 Liquid leaks
Liquid leaks (dangerous, toxic, harmful liquids) can also pose a danger to the personnel
and the environment. Therefore monitor any leak continuously and equip the pump
with containment systems if necessary.
