Agrio Gigant, Instruction Manual

Page: 46 / 96

Derived speed according to the table:
Time (s) 100m 90 72 60 51 45 40 36
Speed (km/h) 4,0 5,2 6,0 7,0 8,0 9,0 10,0
12.2.2 Calculation of the required throughput per nozzle
The following data must first be checked or derived:
-
Nozzle type.
- Actual driving speed.
- Dosage (as recommended by the product manufacturer)
The flow rate is calculated according to the following formula:
Quantity (l/ha) x actual speed (km/h) x nozzle spacing (m)
Flow rate per nozzle = ----------------------------------------------------------------------------
600
Example:
Application rate 200 l/ha
Speed 7 km/h
Distance between adjacent nozzles 0.5 m
200 x 7 x 0,5
Flow rate per nozzle = ------------------ = 1.17 l/min
600
12.2.3 Setting the correct nozzle pressure
Then, when the water in the tank is about half full (never use spray liquid), unfold the booms to
the working position. Start spraying (see chap. 10 ).
Visually check for fluid leaks and clogged nozzles. If necessary, clean the nozzles with an air gun
or nozzle cleaning brush.
The worn nozzles are replaced with new ones.
Set the nozzles and the desired pressure according to the nozzle table.
Only set the nozzle pressure when spraying is switched on. Allow the liquid to spray into a
calibrated container for 1 minute. Set the liquid pressure, switch must be in manual mode.
If the measured quantity does not match the calculation, another method can be used:
-
The tank is filled up to a certain value on the level indicator (this level is the reference unit).
- Or measure the filling quantity by weighing the syringe (weighing is more accurate).
Spraying is carried out on a 100 m section at the selected speed and pressure at constant engine
speed. The delivered quantity is then determined by weighing or refilling via a flow meter to the
original level.
The application rate/ha is determined according to the following formula
Consumption (l) per test section x 10 000 (m²/ha)
Rate l/ha = ----------------------------------------------------------
Length of test section (m) x working width (m)