The HM 365.20 is part of an equipment series that facilitates the investigation of a wide range of engines and machines. Different oil pumps can be operated on the supply module and investigated in terms of their characteristic behaviour. The pumps are connected into the experimental set-up using hydraulic hoses with quick action couplings. The flow is adjusted on a pressure valve and recorded using an oval wheel meter. Other sensors measure the temperature, intake and delivery pressure. The corresponding sensor connections and digital displays are located on the measuring equipment block. All measured data can be transferred to a PC for further processing. The drive motor for operation of the pumps is located on the universal unit HM 365.