CHAPTER 4
26 RCM - Sprayer and Hawkeye® 2 Calibration and Operation Manual
Standby Pump PWM. Enter the desired pump PWM duty cycle percent when all sections are off. The standby
pump PWM is utilized when standby pressure control is not available (e.g. direct injection with a carrier check
valve is installed). The default value is 42%.
NOTE: For best results, set the Standby Pump PWM to allow the system to maintain pressures close to the
desired application pressures.
NCV2 Response Sensitivity. (Not available in NCV2 Bypass control mode) The NCV2 response sensitivity controls
how sensitive the system is to changes in pressure, flow, and speed. Decrease sensitivity if system pressure and
rate oscillate slightly. Increase sensitivity if control is unresponsive. Avoid setting sensitivity above 70.
RATE SENSOR SETUP
To adjust rate sensor and tank fill sensor calibration values and units:
1. Open the UT Menu and select the RCM - Sprayer Menu button.
2. Select the Tools Menu softkey along the right side of the display.
3. Select the System Settings tab along the top of the display.
4. Select the Rate Sensor Setup button on the System Settings page. The following settings and options are
available to help tune the control valve for the specific application system and to help improve applicator
efficiency:
FLOW METER CALIBRATION
Enter the calibration value for the flow meter used to monitor the flow of product to boom sections.
The flow meter calibration value and units may be found on the tag attached to the flow meter installed in the
main product line.
The flow meter calibration value and units are typically found on a tag or label affixed to the flow meter.
NOTE: Be sure to select the appropriate units for the flow meter calibration to ensure proper calibration of
the application system.
FLOW METER PULSE/UNITS
Select the units for the flow meter from this drop-down list. The pulses/units is the number of pulses that the flow
meter will generate for a given amount of product measured by the flow meter.
For example, a flow meter calibration value of 710 and a Pulse/Units value of 10 L indicates that 10 liters of product
is measured through the flow meter for every 710 pulses of the flow meter.
NOTE: Raven flow meters use a meter cal in pulses per 10 gallons [37.9 L]. Other manufacturers may use
different meter cal units.
RCM - Sprayer Menu Tools Menu System
Settings
UT Menu
Rate Sensor
Setup
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