5CS2006OM (rev 00 07/2020) 16
1. Measure a 200 or 300 foot distance on a
eld or surface similar to where sprayer will
be used.
2. Drive tractor with half-full sprayer across
measured distance at a constant and
comfortable speed for spraying. There can
be no changes in speed while measuring
time.
3. When using a gear-driven tractor, select a
gear where PTO is at or near 540 rpm. This
is important for pump to provide adequate
pressure to sprayer when spraying.
4. Determine amount of time, in seconds, it
takes to travel the measured distance.
5. Speed can be determined by entering data
into the following equation:
6. speed (mph) = (distance (ft) x 60) / (time
(sec) x 88) or by consulting the following
table:
Speed
in MPH
Time (sec) required to travel a
distance of:
200 ft 300 ft
1.0 136 205
1.5 91 136
2.0 68 102
2.5 55 82
3.0 45 68
3.5 39 56
4.0 34 51
4.5 30 45
5.0 27 41
5.5 25 37
6.0 23 34
6.5 21 31
7.0 19 29
NOTE: If using boomless nozzles, use the
Boomless Nozzle Calibration Chart.
Useful Formulas
GPA = Gallons per Acre
GPM = Gallons per Minute
MPH = Miles per Hour
GAL/1000 sq ft = Gallons per 1000 sq ft
W = Nozzle spacing in inches
GPM Per Nozzle = GPA x MPH x W / 5940
GPM Per Nozzle = GAL/1000 sq ft x MPH x W
/ 136
GPA = 5940 x GPM (Per Nozzle) / MPH x W
GPA = Gallons per 1000 sq ft / 0.023
GAL/1000ft2 = 136 x GPM (Per Nozzle) / MPH
x W
NOTE: Replace worn tips that have a streaky or
uneven pattern.
Determining Nozzle Size and Using
Calibration Chart
12.5 FT AND 18 FT BOOM CALIBRATION CHART
Tip Size PSI
GPM
one
nozzle
GPA (20” spacing)
4 MPH 5 MPH 6 MPH 8 MPH
AIC11004
30 0.35 17.3 14.0 11.5 8..7
40 0.40 20.0 16.0 13.2 9.9
50 0.45 22.0 18.0 14.7 11.1
60 0.49 24.0 19.3 16.0 12.1
The spray nozzles on your sprayer are
AIC11004, which match up with the calibration
chart. Refer to the calibration chart. Using
tractor speed, nozzle size, and desired gallons
per acre (GPA), calculate pressure (psi)
necessary to achieve your GPA. It is important
to note that lower pressure settings will result in
less spray drift.
Example:
Assume tractor speed is determined to be 4
mph, nozzles are red (AIC11004), and desired
GPA is 40 GPA. The calibration charts shows
that you should set sprayer’s pressure at about
20 psi in order to apply 40 GPA.
Boomless Calibration
Right and Left Nozzles: 1/4XP20
Center Nozzle: 1/4TTJ08
Operation
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