Boom or Section Width Calibration

For liquid sprayers, the boom cal value is the width of the individual boom sections.

Calculate the width of each section by measuring the spacing between spray tips in inches [cm] and then multiplying by the number of tips in each boom section

Note:  For Example, 20 tips in a section with spacing of 40 inches would yield:

or a Section Width of 800 inches (approximately 67 feet). Enter 800 as the width for this section.

Band Spraying Adjustment

To calculate the adjusted applied rate for band spraying applications, use the following formula:

Where BR = the Broadcast Rate, BW = the band width, S = the spacing between the tips, and AR = the Adjusted Rate for band spraying.

Note:  For Example, if the Broadcast Rate is 20 GPA [200 L/ha], the band width is 14 inches [40 cm], and the tip spacing is 40 inches [100 cm]:

English	Metric

Therefore, the adjusted rate is 7 gallons per acre or 80 liters per hectare.

To calibrate section widths in inches [cm] for the granular application types:

• For single section control systems, enter the total spread width as the boom 1 cal.

• For dual section control systems, enter the left side spread pattern as boom 1 cal and the right side spread pattern as boom 2 cal.

• For spinner control, enter the total spread width as boom 1, enter spinner spread width as boom 2 for spinner control. Boom 1 is associated with all products, boom 2 is the spinner control.