Metering units
A metering unit is the component on the machine that is responsible for regulating the spread/application rate.
Examples:
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- Field sprayer - The control valve.
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- Planter/seeder - Metering motor or a mechanical or hydraulic metering drive.
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- Fertilizer spreader - Gate, metering auger, conveyor belts or other metering mechanisms that regulate how much fertilizer falls onto the spinner discs.
Each metering unit regulates the target rate that is spread/applied by one or several sections. The GPS position of these sections is decisive for determining the area on the prescription map from which the target rate should be taken.