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 HM 305 Trainer Centrifugal Pump
 Technical Description

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

 Features

* Mobile trainer for experiments on the basic

principles or centrifugal pumps1
* Closed water circuit1
* Pressure, speed, torque and pump power

consumption available as measured values

 Alternative products
HM 365.11 -- Centrifugal Pump Module
 Specification [1] experimental set-up on laboratory trolley[2] centrifugal pump with manometer on intake and delivery side[3] digital displays of speed, torque, power consumption and flow rate on switch box[4] closed water circuit with tank 96L Technical Data Tank- content: 96L Pump- flow rate: approx. 20m³/h- head: approx. 16m- nominal speed: 3.000min-1 Measuring ranges- pressure: 1x -0,6...0bar, 1x 0...1,6bar- flow rate: 0...20m³/h- speed: 0...5.000min-1- torque: 0...10Nm- power consumption: 0...2200W Dimensions and Weight LxWxH: 2.000x750x1.500mmEmpty weight: approx. 165kg Required for Operation 230V, 50/60Hz, 1 phase or 230V, 60Hz/CSA, 3 phases Scope of Delivery 1 trainer1 set of accessories1 instruction manual Order Details 070.30500  HM 305  Trainer Centrifugal Pump