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OPERATION AND ADJUSTMENTS
CALIBRATING THE SPRAYER
The safety of people, animals and environment depends on correct spray appications.
Therefore, we list below important operational procedures.
WHEN OPERATING SPRAYERS
- Check for the proper working conditions of
the sprayer.
- Do not blow by mouth nozzles, valves or tubes.
- Do not spray against the wind.
- Do not spray at sunny times
- Use individual protective clothing recommended
- Do not eat, drink or smoke.
REMEMBER!
You are responsible for the success of the application.
CALCULATING THE SPRAYING VOLUME
ATTENTION
The numbers shown in the above example are illustrative. The correct calibration
should be done according to instructions of a technician of trust.
CALIBRATING THE SPRAYER
The sprayer can be calibrated through the formula below or through the calibrator bottle
as shown in the next page.
WHEN HANDLING CHEMICALS
- Follow strictly the instructions on the labels.
- Use individual protective clothing.
- Do not eat, drink or smoke.
- Choose a ventilated place.
- Wash with water and soap the parts of the
body touched by chemicals.
Where:
GPA : Application volume in gallons per acre
GPM : Application volume in gallons per minute
MPH : Tractor speed in miles per hour
S : Nozzles spacing width in ft
495 : Conversion factor
GPM x 495
MPH x S
GPA =
Row spacing: 1.64 ft
Tractor speed: 4 mph
Aplication volume in gallons per minute: 0.26 gpm at 150 psi(JA-2 nozzle).
EXAMPLE:
GPM x 495
MPH x S
GPA =
0.26 x 495
4 x 1.64
GPA =
21,37 gallons per acre
GPA =