7
Manual Gain Calibration:
This test will drive the boom at full speed in the selected direction for one second. Make sure the
boom has full range of movement.
The purpose of this test is to determine the sprayer boom speeds. It is recommended that you
perform each test three times and average your readings. From the speed measurements taken,
use Table 1 to determine the appropriate gain values to use for each function.
1. Follow Section 5.2 Step 1 (level booms, working RPM, etc.) before proceeding.
2. Choose the gain up or down setting (Figure 3).
3. Press and hold the "MANUAL" switch.
4. The valve will turn on at 100 percent speed for exactly one-second, regardless of the value of
the gain setting. The screen will show the actual change in height.
5. The change in height reading is live as long as you hold the "MANUAL" switch. Wait until
the height reading has settled to a stable value and record this reading. This is your boom
speed in inches per second (in/s) or mm per second (mm/s).
6. Repeat Steps 3 to 5 three times, repositioning the boom as necessary. Average your three
readings.
7. Set the gain value using the "+/-" switch using Table 1 below as a guideline.
Function Boom Speed (mm/sec) Gain Setting
Roll >2200 1
Roll 2200 - 1000 1 - 5
Roll 1000 - 400 5 - 9
Roll 400 - 100 9 - 11
Roll <100 11 - 12
Table 1: Gain Settings
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