A vacuum control system for a jet injector includes a power source and vacuum pump for creating suction at the injector tip. The wind farm including a plurality of wind power plants, each equipped in a same manner with a pivoted rotor structure and a control device for controlling the operation of the individual wind power plants. A computer device is capable of executing a software program product and communicating with the measuring device. From the compressed, resultant images created from each of the plurality of original images one resultant image is selected. The first controller is adapted to match the first link speed to a second link speed of a second port of a first controlled device that is connectable to the first controller. Upon actuation of the handle, the pivot plate 14 is pivoted by a leg of the handle extending through the housing.