Calibrate Pressure Sensor

To measure boom pressure, calibrate the pressure sensor.

1. 
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   John Deere Rate Controller 2000 Button

   Select the John Deere Rate Controller 2000 button.

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2. 
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   Setup Softkey

   Select the Setup softkey.

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3. 
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   A - Settings Tab

   B - Pressure Sensor Setup Button

   Select the Settings tab (A).

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4. Select the Pressure Sensor Setup button (B).

5. 
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   Calibrate Pressure Sensor Button

   Select the Calibrate Pressure Sensor button.

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6. 
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   Pressure Sensor Drop-Down Menu

   Select the sensor to calibrate from the Pressure Sensor drop-down menu.

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7. 
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   Voltage-based Calibration Button

   
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   Operation-based Calibration Button

   Select either the Voltage-based Calibration button or the Operation-based Calibration button.

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Use the Voltage-based Calibration when the pressure sensor slope is known.

Operation-based calibration is only available when the system is configured for a single liquid product.

To use Operation-based Calibration, two calibration points must be determined since the slope is unknown. The John Deere Rate Controller 2000 automatically measures the voltage at zero pressure. The second calibration point is measured at an operator desired pressure.

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A - Voltage Slope

B - Accept Button

The system requires zero pressure when entering the slope for the pressure sensor setup. Zero-volt sensors can be unplugged to zero the pressure sensor reading. One- to five-volt sensors require the pressure be relieved before entering the slope value.

1. Verify with the sensor manufacturer that sensor can accept 12 V power.

   Ensure that sensor has 12 V power supply.

2. For Raven pressure sensors with a 12 V power supply, slope is 16 mV/psi.

   Enter the slope (A) from the pressure sensor manufacturer.

3. Select the Accept button (B).

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A - Next Page Button

Operation-based calibration is only available in the single product configurations.

1. Set the pump to the normal operating speed.

2. Turn on the master switch.

3. Select the Next Page button (A).

4. 
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   A - Sections

   B - Fence Row Nozzle

   C - Next Page button

   To spray during calibration, enable sections (A) and if needed, fence row nozzles (B).

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5. Select the Next Page button (C).

6. 
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   A - Minus (-) Button

   B - Plus (+) Button

   C - Sensor Pressure

   D - Accept Button

   To set the desired boom pressure, use the + / - buttons (A and B). The new pressure must increase pressure sensor voltage by at least 0.25 V.

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7. Enter the pressure (C) from the implement pressure gauge.

8. To complete calibration, select the Accept button (D).