The trainer HM 305 is a mobile system with a closed water circuit that is intended both for training in vocational colleges and also for laboratory experiments in higher education.
The system is equipped with a centrifugal pump and various transducers, e.g. the torque on the shaft of the speed-controlled pump motor is measured and indicated on the switch box, as is also the rotational speed, current and voltage. Manometers indicate the pressure on the intake and delivery side of the pump. The flow rate is measured using an magneto-inductive flow sensor. In this way the system provides a whole host of measured data that permit students to perform experiments on the basic principles of a hydraulic circuit.
Learning Objectives / Experiments
- recording of a pump characteristic curve - recording of a system characteristic curve - determination of the flow rate by using a
magneto-inductive flow sensor
- calculation of efficiencies
* Mobile trainer for experiments on the basic
principles or centrifugal pumps1 * Closed water circuit1 * Pressure, speed, torque and pump power
 experimental set-up on laboratory trolley  centrifugal pump with manometer on intake and delivery side  digital displays of speed, torque, power consumption and flow rate on switch box  closed water circuit with tank 96L