Seed sensors and dry fertilizer sensors
The parameters shared by a group of optical seed or dry fertilizer sensors — target rates, fraction, sensitivity, rate error, skips and doubles, tramline tolerance.
Seed sensors and dry fertilizer sensors are the same kind of device and share one parameter set. Almost everything here is common to the whole group: change it on one sensor and it changes for all sensors of the group. Only two things are set per sensor — whether it is under control (“Disable control” / “Enable control”) and “Product application”. Open the context menu of any sensor of the group as in Sensor settings.
| Parameter | What it does | Range | Level |
|---|---|---|---|
| “Flow rate” | The rate for the “Flow” mode, in seeds per second. Below it the section raises the low-rate alarm. | 1 … 1500 | Operator |
| “Hybrid rate” | The target in the “Hybrid” mode. | 1 … 200 | Operator |
| “Precise rate,x10” | The target in the “Precise” mode, in tenths. | 5 … 500 | Operator |
| “Sensitivity” | The sensitivity of sensors of an older generation; the panel sends it to them. Shown only when such a sensor is connected. | 1 … 120 | Agronomist |
| “Fraction” | The count filter of the sensors, set for the size of the seed or granule; the panel sends it to every sensor of the group. The rate, skip and double alarms tell you which way to change it. | 1 … 100 | Operator |
| “Correction” | A fine adjustment of seed detection for the sensor generation that uses it; the panel sends it to those sensors only, and the item appears only when one is connected. Default 300. | 100 … 3300, steps of 10 | Operator |
| “Rate error,%” | How far the actual rate may stand from the target before an alarm. | 5 … 95, steps of 5 | Agronomist |
| “Doubles error,%” | The share of doubles that raises an alarm. “Precise” mode only. | 0 … 95 | Agronomist |
| “Skips error,%” | The share of skips that raises an alarm. “Precise” mode only. | 0 … 95 | Agronomist |
| “Recalculation,m” / “Recalculation,sec” | The stretch the skips and doubles are counted over — in metres or in seconds, depending on the mode. | 10 … 50 | Operator |
| “Percent of sowing,%” | The share of the seed rows under control that must sow before the panel takes the drill as seeding; until then the seed and dry fertilizer sensors raise no rate, skip, double or tramline alarm. Seed sensors only; hidden on machines with metering motors or a liquid fertilizer pump controller. | 5 … 80, steps of 5 | Agronomist |
| “Tolerable sowing to tramline,%” | How much a section that should be shut off for the tramline may still deliver. | 0 … 50 | Agronomist |
| “Group start address” | Set at commissioning — see Device configuration. | Service |
The target rates themselves are changed while you work, on the home screen — see Change the target rate. The status screen of these sensors shows one of eight states — see The sensor status screen. If a sensor reports “Clogged”, “Light struck” or “Broken”: Sensor clogged or broken.
Something your machine does that this page does not answer? Write to support@agriwelt.com — an engineer answers.