Calibration with the ISOBUS terminal or the calibration button

REQUIREMENTS

  • The fan is switched off

  • The machine is at a standstill

  1. In the Field menu, call up Calibration.
  2. In the Calibration menu, select the desired hopper.
  1. Enter the subsequent working speed under Intended speed.
NOTE
On machines with a combined two-tip hopper, the target rate per metering unit does not need to be halved.
  1. Enter the Target rate.

On machines with row-based metering units, the metering wheel volume is specified per row.

On machines with central metering units, the metering roller volume is specified for all rows.

  1. Select the desired metering wheel under Metering wheel

or

Select the desired metering roller volume under Metering roller

or

In the selection menu above, select ... and enter a user-defined metering wheel volume.

  1. Continue with .

The calibration type defines how the calibration is started.

  1. To start the calibration with the ISOBUS control terminal:

    Under Calibration method, select ISOBUS terminal

or

To start the calibration with the calibration button:

Under Calibration method, select Calibration button.
  1. Continue with .

  1. To prepare the machine for calibration:

    Refer to the machine operating manual.

  2. If the points shown on the display are fulfilled:

    Continue with .

  3. If the ISOBUS control terminal is selected as the calibration method:

    perform the calibration on the ISOBUS control terminal

or

If the calibration button is selected as the calibration method:

perform the calibration on the machine.

  1. To start the calibration:

    press and hold

or

Press and hold the calibration button.

During the calibration procedure, the theoretic applied quantity will be displayed.

NOTE

At high metering quantities, the calibration can be paused to empty the calibration bucket.

If the collected quantity is enough for a precise check, the calibration can also be terminated prematurely.

Calibration is automatically stopped when an area corresponding to the target rate has been reached.

  1. Weigh the collected quantity.
  2. Take account of the weight of the calibration bucket.
  3. Enter the weight of the collected quantity.
  4. Continue with .

The calibration factor will be calculated.

  1. If the displayed percent deviation of the quantity is more than 2 %:

    Accept the value with and repeat the calibration for optimisation

or

If the displayed percent deviation of the quantity is less than 2 %:

Accept the displayed calibration factor with

or

To discard the calibrated values and start a new calibration:

Press .