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Identification of Energy-Saving Potential

A free energy efficiency check for your pumps using the smart KSB Sonolyzer® app

KSB Sonolyzer® is a smartphone app from KSB which analyses the motor sound of your asynchronous motor to identify whether your pump is operating efficiently or whether too much energy is being consumed.

It pays off to hear how efficiently your pump is working

KSB’s free smartphone app KSB Sonolyzer® can reveal whether your pump is operating efficiently or consuming too much energy simply by listening to the sound of its asynchronous motor. The results analysis shows you whether the operating point is inside or outside the part-load range.

You can see at a glance whether energy savings could be made and also receive information about the load condition of your pump. By that, you get an idea of a possible increase of the mean time between failure for your pump.

Having successfully identified savings potential, you can then contact your local KSB specialist to obtain a detailed efficiency analysis performed with KSB’s analysis tools. The KSB app determines your location and puts you in direct contact with the relevant specialist.

The results provided by the KSB Sonolyzer® app are an ideal starting point for obtaining a quick but detailed FluidFuture® analysis, and for using the resulting potential savings identified to increase the efficiency of your pumps.

The KSB Sonolyzer® app uses an algorithm that was developed by KSB and is the first of its kind on the market. But it is not limited to use with KSB pumps: Asynchronous motor-driven rotating equipment produced by many other manufacturers can also be analysed.

Our portfolio

  • Customer self-service via app
  • Analysis of your rotating equipment’s load profile within seconds

Your benefits

  • Free download
  • Quick identification of energy-saving potential
  • Direct contact to KSB service specialist
  • Solid basis for further analyses and optimisation measures (SES)

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IEC-compatible sensorless magnetless synchronous reluctance motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4 / IE5 (super/ultra premium efficiency) to IEC TS 60034-30-2:2016 for operation on a KSB PumpDrive 2, PumpDrive 2 Eco or PumpDrive R variable speed system. Suitable for connection to three-phase 380 - 480 V power supply (via PumpDrive). The motor mounting points comply with EN 50347 specifications to ensure compatibility with standardised IEC frame motor applications and full interchangeability with IE2 or IE3 standardised asynchronous motors. Envelope dimensions lie within the limits for IE2 / IE3 motors as recommended in DIN V 42673 (07-2011). The motor is controlled without rotor position sensors. The efficiency of the motor also exceeds 95 percent of nominal efficiency when the motor runs at 25 percent of its nominal power on a quadratic torque-speed curve. The motor is magnetless which means that so-called rare earths are not used in production. Drive production is thus sustainable and environmentally friendly.

PumpDrive 2/PumpDrive 2 Eco

PumpDrive 2/PumpDrive 2 Eco

Modular self-cooling frequency inverter that enables continuously variable speed control of asynchronous and synchronous reluctance motors by means of analog standard signals, a field bus or the control panel. As PumpDrive is self-cooling, it can be mounted on a motor, on the wall or in a control cabinet. Up to six pumps can be controlled without needing an additional controller.



Device for monitoring the operation of one pump. It is an intelligent pressure transmitter for pumps, with on-site display of measured values and operating data. It records the load profile of the pump in order to indicate any potential for optimising energy efficiency and availability. The device comprises two pressure sensors and a display unit. PumpMeter is supplied completely assembled and parameterised for the pump it is used with. It is ready for operation as soon as the M12 plug connector is plugged in.

Energy efficiency consulting (Fluid Future) for pumps and valves

Energy Efficiency Consulting

Optimise your system’s energy efficiency in four steps using FluidFuture®. KSB’s systematic approach ensures maximum energy savings.

  • Systematic analysis
  • Clear recommendations for action
SES System Efficiency Service

SES System Efficiency Service

Pumps that are not optimally matched to the system consume too much energy. Thanks to SES System Efficiency Service from KSB, this doesn’t have to be the case.

  • Energy efficiency analysis
  • Damage analysis
Smartphone with KSB Sonolyzer® app

KSB Sonolyzer® app

With this app, KSB brings Industry 4.0 straight to your smartphone: In just a few seconds, the KSB Sonolyzer® can measure the noise frequency of an asynchronous motor and check whether there are potential energy savings to be made, thus enabling an increase in pump efficiency.