Hysteresis Brake Dynamometers (HD-700 Series) are versatile and ideal for testing in the low to medium power range (maximum 3360 watts intermittent duty). With a Hysteresis Braking system, the Dynamometers do not require speed to create torque, and therefore can provide a full motor ramp from free-run to locked rotor.Brake cooling is provided by convection (no external source) or by air with a dedicated blower, depending on the model.

All Magtrol Hysteresis Dynamometers have accuracy ratings of ±0.25% to ±0.5% full scale — depending on size and system configuration. To better integrate dynamometers into systems, Magtrol now offers both long and short base plates. The shorter base plate facilitates easier motor mounting when used with T-slot tables and Magtrol Adjustable Motor Fixtures, where as the long base plates are better suited for table top testing.