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CHAPTER 4

20 ISOBUS Product Control Installation & Operation Manual

SPEED CAL

A speed cal input is enabled if the controller is being used in conjunction with a switchbox that supports speed

input calibration. The speed cal value is used to adjust in the incoming signal from the speed source. To set the

speed cal value, start with 600 as an initial value. On the totals screen, reset the distance value to 0. Drive one mile

while slowly decelerating and accelerating. If the distance reading is not between 5,260 feet and 5,300 feet (995

meters and 1,005 meters), use the following calculation to determine the speed cal value:

Current Speed Cal x Known Distance Traveled / Distance Displayed on Total Screens = Adjusted Speed Cal (EQ 1)

PUMP RPM CAL

The pump RPM cal is used to calibrate the pump on the machine. Enter the number of pulses sensed per

revolution of the fan or pump. These values are used for monitoring purposes only. There is no control based on

these values or the monitored RPM of the pump. When a non-zero value is entered for pump RPM cal, a pump

RPM will display on the home screen.

VALVE CAL

Select the “Valve Cal” button on the Product Control Calibration screen to display the valve calibration screen for

the product control valve or the hydraulic control valve controlling the speed of a belt or auger system.

NOTE: To accept the currently displayed settings, or once settings have been adjusted properly, select the

“OK” button in the lower right corner of the display to return to the Product Calibration display.

VALVE TYPE

Select the type of control valve used to control the product application. Choose between a standard, fast, fast

close, PWM, or PWM close valve for this setting.

NOTE: If a pulse width modulation (PWM) type valve is selected, additional settings will be displayed on the

Valve Calibration screen. See the Pulse Width Modulation Valve Setup section on page 25 for a

description of these settings.

VALVE CAL

NOTE: If the dual loop control feature is enabled, the valve cal value will be replaced by the flow cal value.

Raven ISOBUS Product Control User Manual

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