NORAC UC4.5-BC-GN2 Part 1 - Manual (Page 16)

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7 Calibrating the Slant Valve
There are two key settings for each valve direction. These settings are valve DeadZone, "DZ",
and valve GAIN, "KP".
The DeadZone ("DZ") setting represents the size of electrical signal required at the solenoid
valve to cause a boom speed of one inch per second (Section 7.1).
The GAIN ("KP") setting is inversely related to the maximum speed of the boom. That is, the
faster the boom the lower the GAIN setting (Section 7.2).
IMPORTANT:
Before setting up the slant valve, ensure the following steps are complete.
1. Unfold the sprayer in a location that is relatively level, and where the sensors are over bare
soil or gravel. Do not conduct the setup procedure over standing crop, or tall weeds/grass.
2. Check the pads between the sprayer boom and the boom carrier frame to ensure no
friction because of wear. Use grease or other lubricants, if necessary. This is important and
will increase the UC4.5 Spray Height Control system performance significantly.
3. Start the solution pump and run the sprayer’s engine at a normal working RPM for the
entire setup. Make sure that the height of all the booms can be manually adjusted. For best
results, the hydraulic system should be under a normal load and at a normal working
temperature. An effective way to warm the oil is to cycle all boom sections up and down
manually for 5 minutes. Longer warm up times may be required in cold weather. For pull-
type sprayers, ensure any hydraulic flow controls are adjusted for normal field operation.
Changing the flow controls during or after the setup will affect the UC4.5 operation.
Table 4: Roll Channel SETUP Menus
Navigating past the end of the menu will return the panel to the Setup…”More”
Menu. Readings are adjusted using the
switches.
Roll OnU
Informs the user that the roll valve channel is ON. To change the status to OFF,
use the
switches.
DZ 20 Informs the user that the roll CW (clockwise) DeadZone setting is 20.
KP 10 Informs the user that the roll CW GAIN setting is 10.
DZ 20 Informs the user that the roll CCW (counter clockwise) DeadZone setting is 20.
KP 10 Informs the user that the roll CCW GAIN setting is 10.
Navigating past the end of the menu will return the panel to the Setup…”More”
Menu