Seed sensors and dry fertilizer sensors
The parameters shared by a group of optical seed or dry fertilizer sensors — fraction, sensitivity, rate error, skips and doubles, percent of sowing, tramline tolerance — and the per-sensor switch for product application.
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”. Touch and hold the column of any sensor of the group to open its context menu (Sensor settings).
| Parameter | What it does | Range, default | Level |
|---|---|---|---|
| “Product application” | Per sensor. “No” — the row deliberately applies nothing, and the panel watches it as a shut-off tramline row. Not offered when every sensor of the group has its own dispenser motor. | “No” / “Yes” | Agronomist |
| “Sensitivity” | The sensitivity of the optical channel. Shown only for the sensor types that use it. | 1 … 120; 80 | Agronomist |
| “Fraction” | The sensor's filter for the size of the product particles. The rate, skip and double alarms tell you in which direction to change it. | 1 … 100; 10 | Operator |
| “Correction” | A correction of the detection window of the optical channel. Shown only for the sensor type that uses it. | 100 … 3300, steps of 10; 300 | Operator |
| “Rate error,%” | How far the actual rate may stand from the target before an alarm. “Hybrid” and “Precise” modes only. | 5 … 95, steps of 5; 50 | Agronomist |
| “Doubles error,%” | The share of doubles that raises an alarm. “No” (0) switches the alarm off. “Precise” mode only. | 0 … 95; “No” | Agronomist |
| “Skips error,%” | The share of skips that raises an alarm. “No” (0) switches the alarm off. “Precise” mode only. | 0 … 95; “No” | Agronomist |
| “Recalculation,m” / “Recalculation,sec” | The stretch the skips and doubles are counted over — in metres on a machine with a speed sensor, in seconds without one. | 10 … 50; 20 | Operator |
| “Percent of sowing,%” | The share of the seed sensors under control that must see seed before the panel decides that seeding has started. Seed sensors only; hidden on a machine with dispenser motors or a pump. | 5 … 80, steps of 5; 20 | Agronomist |
| “Toler.sowing to tramline,%” | How much a section that should be shut off for the tramline may still deliver. | 0 … 50; 20 | Agronomist |
| “Group start address” | Fertilizer sensors only. Set at commissioning — see Device configuration. | — | Agronomist |
The target rates and the alarm level are not menu items: they 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.