UC4™ Total Control™ Automatic Boom Height Technical ... - Norac

Another good reason for the main boom sensor is that soil conditions
change along with the weight of the machine. As the sprayer tank fluid
level changes throughout the day and soil conditions vary, the main boom
height will change because of the amount the tires sink into the soil.
Special attention must be taken into consideration when mounting the main
boom sensor, as explained in the UC4 Installation Manual for your sprayer.
NORAC ultrasonic sensors are designed to work best in the brackets
provided (Figure 2). If you decide to use a different style of sensor mount,
you may limit the performance of the sensor and/or void your warranty.
Further, it is important to follow the guidelines in the UC4 Installation
Manual for mounting the sensors. The sensors should be at least 9 inches
above and 9 inches in front of the spray nozzles.
For large boom or severe terrain applications, an additional sensor may be
mounted near the midpoint of each boom to obtain an average height
reading. The average height reading will provide improved height control
over the length of the boom, and protect the boom in severe terrain
conditions (Figure 3).
POSSIBLE CRASH
WITHOUT ADDITIONAL SENSORS
CRASH AVOIDED
WITH ADDITIONAL SENSORS
Figure 3 – Severe Terrain – Additional Sensors Required
On sprayer models with main frame roll capability (as illustrated in Figure
4), the main boom sensor can also be used to adjust the roll angle of the
entire boom. Addition of this sensor to the UC4 system can greatly
improve the speed and stability of the automatic control actions. Contact
NORAC for more information on the availability of roll control for your
sprayer model.
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