Micron Technology Turbofan - Manual (Page 20)

DRAFT
19
The following recommendations are for guidance only and do not exclude any statutory
requirements:
1. Always wear adequate protective clothing, eye protection and respiratory protection
when mixing, transferring or spraying pesticides. The minimum level of protection
will be stated on the chemical label or in the Code of Practices in most countries.
2. Protective clothing, respirators etc must be removed as soon as exposure to pesticides
has ceased. All items must be washed or disposed of safely according to the
manufacturers’ recommendations.
3. Ensure that the sprayer is correctly calibrated for the chemical, application technique
and crop or pest being sprayed.
4. Take note of the speed and direction of the wind. Ensure that spray droplets do not
drift on adjacent crops, another person’s land or an inhabited area. Do not drive the
sprayer upwind so that spray could be blown back towards the operator.
5. Never walk into a sprayed area until it is safe to do so according to the chemical
manufacturer’s recommendations.
6. All traces of chemical must be washed from the operator’s skin immediately after
spraying and before eating, drinking or smoking.
7. Remove all traces of chemical from the tank, pipework and sprayheads as well as
from external surfaces of the sprayer.
8. All residues of chemical from the sprayer, pesticide containers or mixing vessels, etc
must be disposed of safely by an approved means. Do not contaminate an off-target
area or allow pesticides to reach streams, wells or groundwater.
9. Dispose of empty chemical containers safely by an approved means. Do not keep
containers for re-use for other purposes.
7.0 CALIBRATION AND ADJUSTMENT
As with any sprayer, a machine fitted with Turbofan Sprayheads must be calibrated
before use.
The following sections describe the calibration of a typical sprayer using Turbofan
Sprayheads. The procedure may differ slightly for some specialised sprayers.
7.1 Application Rate
The output rate of chemical from the sprayer will be determined by the required
application rate (in litres/hectare) and the area sprayed per minute (in hectares/minute).
The flow of chemical from each sprayhead is usually controlled by an interchangeable
fixed restrictor orifice in the feed to the atomiser and by the spray chemical pressure.
Spray chemical pressure is controlled by the pressure regulator or by-pass valve in the
feed from the chemical pump.