The dynamometer comprises: The basic electro-mechanical unit mounted on trunnion bearings A 60 teeth gear-wheel mounted at the non-driving end of the dynamometer to sense the dynamometer- speed Mounting arrangement for magnetic pick-up and load-cell Temperature sensors to monitor loss plate temperature Pressure switch for low-water pressure alarm at water inlet Flow Switch for low water flow alarm at water inlet Pressure gauge for water-inlet pressure indication Adaptor plates for propeller shaft coupling Junction box