This small engine dynamometer is similar in function to the Labtech model PS-DHA except that the brake force mechanism is performed by an electric motor. The advantages of an electric motor braking system is that it provides a more precise control of the brake force and also has the ability to motor (or turnover) the engine which is useful for friction analysis studies. 

This dynamometer can be used for testing of small petrol and diesel engines as well as electric motors. The unit is mounted on a sturdy steel base which can be used on a bench top. Engine mounting plates are provided to allow quick set up and interchange of engines for testing. The built-in precision load control can accurately vary the engine load so that torque readings can be taken at different RPMs. Torque is measured by an electronic load cell and built-in torque meter. An electronic RPM meter is included for monitoring rotational speed of the engine.