
3.18
Pegasus BT-POM 1212 - Rev 3
Sprayer Operation
Calculate Water &
Chemical Quantities
Before spraying it is necessary to
calculate the exact quantities of water
and chemical needed to spray the
required area. The following formulae
may be useful:
1. For chemical rates expressed in
litres or kg per hectare (land area),
calculate the amount of chemical
needed, using the formula:
Chemicals required (litres) =
Tank Volume (l) x Recommended
Chemical Rate (l/ha)
÷ Spray
Application Rate (l/ha)
eg. [4000 x 3] ÷ 150
= 80 litres.
Accurately calculate the amount of chemical
required.
2. For volume of mixture required
to spray the selected area, calculate
the liquid required, using the
following formula:
Tank Volume Required (litres) =
Area (ha) x Spray Application Rate (l/ha)
eg. 300 x 150
= 45,000 litres
3. For area covered by a given
volume of mixture, calculate the
area, using the following formula:
Area Covered (ha) =
Tank Volume (litres) ÷ Spray
Application Rate (l/ha)
eg. 4000 ÷ 150
= 26.7 hectares
Adding Chemical To
the Spray Tank
Chemical can be added to the spray tank
using the Chem-E-Flush hopper, and/or if
fitted, the optional Chemical Probe.
1. Chem-E-Flush Hopper
To add chemical to the spray tank, follow
the steps outlined:
a) Make sure sufficient water is added
to the spray tank and the flush tank.
b) leg lock by placing your foot on the
latch lever. Hold on to the handle and
pull out and down once the latch is
released.
Unlock the Chem-E-Flush with the foot latch.
Rotate the Pressure Control lever to "CHEM-
HOPPER".
c) Lower the hopper to filling position.
d) Rotate the Pressure Control lever to
“Chem-Hopper” positon.
e) Turn the Suction Line valve to
"Flush" position.
Turn the Suction Line Valve to "Flush" position.
Lower hopper into the filling position.
IMPORTANT! Be sure to mix only enough
spray mixture to cover the area required.
Avoid wastage and problems of needless
chemical disposal.
NOTE
Chemical Mixing
Содержание PEGASUS 4000
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