NORAC UC4.5-BC Quick Guide - Manual (Page 6)

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Figure 3: General UC4.5 System Layout (Front Mount)
2.2 Height Sensors
 Height sensors use an ultrasonic signal to measure distance to the ground or crop canopy.
 Most standard systems have two height sensors. One mounted on the outer part of each
boom tip. However, there can be as many as six sensors per system.
 Height sensor firmware version must be 2.0.0.1 or higher.
2.3 Roll Sensors
 Roll sensors are important for measuring boom and sprayer roll dynamics.
 Two roll sensors are normally used for a UC4.5 Spray Height Control System.
 The mounting position of the roll sensors vary from sprayer to sprayer depending on boom
geometry and suspension.
 Roll sensor firmware version must be 2.0.0.0 or higher.