NORAC UC5-BC-VT - Manual (Page 13)

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Mode:
The Mode button allows the system to be changed between Soil Mode, Crop Mode and Hybrid
Mode. Soil Mode allows the sensors to read a height from the spray nozzles to the ground;
whereas Crop Mode will read the height from the spray nozzles to the top of the crop canopy.
Hybrid Mode is an improved Crop Mode and is recommended in place of Crop Mode.
Target Height:
The target height is the height you would like the boom to be set at when spraying. When
operating in Soil Mode, the target height is measured from the spray nozzles to the soil. In
Crop Mode the target height is measured from the crop canopy to the spray nozzles. In
Hybrid Mode the target height is a combination of measurements to provide a more stable
estimate of the distance from the crop canopy to the sprayer nozzles.
Main Lift Reaction:
The main lift reaction time affects how long the main lift waits between adjustments. The main
lift reaction time can be adjusted from 0 to 5. A setting of 1 is slow and a setting of 5 is the
fastest reaction time. A reaction time of 0 turns the main lift control off. A slower main lift
reaction time can be beneficial in uneven crops to prevent the boom from making unnecessary
movements. A reaction time of zero can be beneficial in tall crops where the crop is being
pushed over by the sprayer chassis to prevent the center section from moving too low.
Setting Main Lift Reaction Situation
0 Off Tall Crops
1 Slowest Reaction Uneven Crops
5 Fastest Reaction Even Crops & Soil Mode
Slant Reaction:
The slant reaction time is how long the slant waits between adjustments. This setting is only
visible when the slant control is enabled. The slant reaction time can be adjusted from 0 to 5.
A setting of 1 is slow and a setting of 5 is the fastest reaction time. A reaction time of 0 turns
the slant control off. It is best to set the slant reaction to a low setting in flat fields as the slant
is generally not required in flat fields. It is best to set the slant reaction to a higher setting in
uneven terrain or on side hills. Setting the slant reaction too high will cause the boom to
oscillate and decrease the performance of the system.
Learned/Expected Crop Height:
The learned crop height setting is used when spraying in Hybrid Mode. When Learned Crop
Height is checked, the UC5 system will attempt to learn the average crop height using all crop
readings that are measured by the ultrasonic sensors. If Learned Crop Height is unchecked, the
operator can enter an expected crop height. The expected crop height is then used to try and
achieve a more accurate average crop height reading by excluding ultrasonic sensor readings
that are outside the acceptable distance from the expected crop height. In most situations
leaving the Learned Crop Height setting checked will provide adequate performance.