Liquid Fertilizer Sensor Diagnostics

1. Turn tractor OFF. Turn key to accessory position.

2. Ensure that sensor wiring is properly connected.

   If only one sensor is used, it MUST be connected to wire labeled LEFT FERT.

3. Ensure that correct number of sensors are selected.

   Select Planter button >> Planter Configuration softkey >> Sensors tab >> Fertilizer drop down >> Sensors drop down. Enter number of sensors on machine.

4. Ensure that sensors are calibrated and zeroed correctly.

   • Enter sensor calibration number of 37.5 for each sensor in calibration input box.
   • Release trapped pressure in fertilizer manifold, then press ZERO button for each sensor.
   
   

5. Ensure that voltages are correct.

   Select Planter button >> Diagnostics softkey >> Readings tab >> System Voltages drop down.

   • Controller voltage MUST be 11 V or higher.
   • Sensor supply value is 8.0 V.
   • If voltage is ZERO, check wiring.