7.2 Calibration of fertiliser

To access calibration, select Settings/Calibration/Fertiliser.

Note

Values are displayed either in metric or imperial units, depending on which one has been selected in the general settings menu.

Figure 1. Calibration menu fertiliser

  1. Calculates the number of pulses

  2. Enter the desired application rate

  3. Set the same value for all row units

  4. Select which of the row units to be calibrated

  5. The appropriate interval for tractor speed. FrontHopper setting, not applicable for PCV.

  6. FrontHopper motor setup (not applicable to PCV). Specify how to select the motors:

    • The motors are used automatically, one or both depending on what is selected (standard)

    • Choose to use only a specific motor (special).

  7. Enter the weight of the contents of the calibration bag filled during calibration

  8. Fill the output system

  9. Calculates pulses/kg. (You can also enter pulses/kg manually by pressing the field and entering the value in the pop-up window.)

  10. Calibrate

Calibration

  1. Figure 2.

  1. Set the feed units and select a feed roller so that it suits the actual fertiliser type.

  2. Enter the values in the calibration menu.

  3. Fill the output system with the (H) button.

  4. Remove and empty the calibration bag. When empty and put back in place.

  5. Select the calibration button (J) press and hold until the right amount of fertiliser has been fed into the calibration bag. The pulses from the feed are displayed alongside the pulse symbol.

  6. Weigh the contents of the calibration bag. Tip: First reset the scales with an empty calibration bag.

  7. Specify the weight of the contents of the calibration bag in field (G) in the calibration menu.

    The number of pulses per kg will be automatically displayed in field (I)

    To enter the number of pulses manually, press field (I) and enter the number of pulses in the pop-up window.

    To cancel the calibration and perform a fresh calibration, repeat points 3 to 7.

  8. To exit the calibration menu click on, or go directly to calibration of another unit.

  9. Reset the calibration flaps to position B for sowing.

Figure 3.

  • Before drilling ensure that the same type of feed roller is fitted on all feed units.

  • Perform a new feed check in the field after drilling about a hectare.

  • Check regularly that deposits have not built up on the seed rollers and in the feed units.