Section 5: Preparing for use (cont.)
Calibrating
The Operator should carry out
a full calibration procedure
according to the corresponding
product label. This should take
account of:
•
Walking Speed:
This should
be accurately measured. The
Pacing Control on the applicator
will assist with determining
accurate walking speed.
Walking speed can be
accurately determined using the
following formula:
360 / time taken to walk 100m
(seconds) = Walking Speed
(kph)
•
Product Application Rate:
This
can be found on the product
label and will be the correct
approved rate for the product
and situation concerned.
•
Spray Width:
This will be
dependent on disc selection,
disc speed and height.
•
Flow Rate:
This is the rate of
herbicide flow through the
applicator, and is measured
using the
Calibration Cup
.
The correct Flow Rate for the
herbicide can be calculated using
the following formula:
Walking Speed (kph) x Product
Application Rate (l/ha) x Spray
Width (cm) / 120 = Flow Rate
(ml/30secs).
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